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Update containerd to cf554d59dd96e459544748290eb91

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This bumps containerd to cf554d59dd96e459544748290eb9167f4bcde509 and
includes various fixes and updates the grpc package and types generated
for use.

Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
This commit is contained in:
Michael Crosby 2016-06-07 14:30:43 -07:00
parent ce96ce9e05
commit d17b9f3da0
67 changed files with 5898 additions and 2010 deletions
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2
Dockerfile
View file

@ -244,7 +244,7 @@ RUN set -x \
&& rm -rf "$GOPATH"
# Install containerd
ENV CONTAINERD_COMMIT 57b7c3da915ebe943bd304c00890959b191e5264
ENV CONTAINERD_COMMIT cf554d59dd96e459544748290eb9167f4bcde509
RUN set -x \
&& export GOPATH="$(mktemp -d)" \
&& git clone https://github.com/docker/containerd.git "$GOPATH/src/github.com/docker/containerd" \

2
Dockerfile.aarch64
View file

@ -191,7 +191,7 @@ RUN set -x \
&& rm -rf "$GOPATH"
# Install containerd
ENV CONTAINERD_COMMIT 57b7c3da915ebe943bd304c00890959b191e5264
ENV CONTAINERD_COMMIT cf554d59dd96e459544748290eb9167f4bcde509
RUN set -x \
&& export GOPATH="$(mktemp -d)" \
&& git clone https://github.com/docker/containerd.git "$GOPATH/src/github.com/docker/containerd" \

2
Dockerfile.armhf
View file

@ -200,7 +200,7 @@ RUN set -x \
&& rm -rf "$GOPATH"
# Install containerd
ENV CONTAINERD_COMMIT 57b7c3da915ebe943bd304c00890959b191e5264
ENV CONTAINERD_COMMIT cf554d59dd96e459544748290eb9167f4bcde509
RUN set -x \
&& export GOPATH="$(mktemp -d)" \
&& git clone https://github.com/docker/containerd.git "$GOPATH/src/github.com/docker/containerd" \

2
Dockerfile.gccgo
View file

@ -85,7 +85,7 @@ RUN set -x \
&& rm -rf "$GOPATH"
# Install containerd
ENV CONTAINERD_COMMIT 57b7c3da915ebe943bd304c00890959b191e5264
ENV CONTAINERD_COMMIT cf554d59dd96e459544748290eb9167f4bcde509
RUN set -x \
&& export GOPATH="$(mktemp -d)" \
&& git clone https://github.com/docker/containerd.git "$GOPATH/src/github.com/docker/containerd" \

2
Dockerfile.ppc64le
View file

@ -215,7 +215,7 @@ RUN set -x \
&& rm -rf "$GOPATH"
# Install containerd
ENV CONTAINERD_COMMIT 57b7c3da915ebe943bd304c00890959b191e5264
ENV CONTAINERD_COMMIT cf554d59dd96e459544748290eb9167f4bcde509
RUN set -x \
&& export GOPATH="$(mktemp -d)" \
&& git clone https://github.com/docker/containerd.git "$GOPATH/src/github.com/docker/containerd" \

2
Dockerfile.s390x
View file

@ -208,7 +208,7 @@ RUN set -x \
&& rm -rf "$GOPATH"
# Install containerd
ENV CONTAINERD_COMMIT 57b7c3da915ebe943bd304c00890959b191e5264
ENV CONTAINERD_COMMIT cf554d59dd96e459544748290eb9167f4bcde509
RUN set -x \
&& export GOPATH="$(mktemp -d)" \
&& git clone https://github.com/docker/containerd.git "$GOPATH/src/github.com/docker/containerd" \

2
Dockerfile.simple
View file

@ -68,7 +68,7 @@ RUN set -x \
&& rm -rf "$GOPATH"
# Install containerd
ENV CONTAINERD_COMMIT 57b7c3da915ebe943bd304c00890959b191e5264
ENV CONTAINERD_COMMIT cf554d59dd96e459544748290eb9167f4bcde509
RUN set -x \
&& export GOPATH="$(mktemp -d)" \
&& git clone https://github.com/docker/containerd.git "$GOPATH/src/github.com/docker/containerd" \

8
hack/vendor.sh
View file

@ -56,7 +56,7 @@ clone git github.com/mattn/go-sqlite3 v1.1.0
clone git github.com/tchap/go-patricia v2.1.0
clone git github.com/vdemeester/shakers 24d7f1d6a71aa5d9cbe7390e4afb66b7eef9e1b3
# forked golang.org/x/net package includes a patch for lazy loading trace templates
clone git golang.org/x/net 78cb2c067747f08b343f20614155233ab4ea2ad3 https://github.com/tonistiigi/net.git
clone git golang.org/x/net 2beffdc2e92c8a3027590f898fe88f69af48a3f8 https://github.com/tonistiigi/net.git
clone git golang.org/x/sys eb2c74142fd19a79b3f237334c7384d5167b1b46 https://github.com/golang/sys.git
clone git github.com/docker/go-units 651fc226e7441360384da338d0fd37f2440ffbe3
clone git github.com/docker/go-connections v0.2.0
@ -97,7 +97,7 @@ clone git github.com/pborman/uuid v1.0
# get desired notary commit, might also need to be updated in Dockerfile
clone git github.com/docker/notary v0.3.0
clone git google.golang.org/grpc a22b6611561e9f0a3e0919690dd2caf48f14c517 https://github.com/grpc/grpc-go.git
clone git google.golang.org/grpc ab0be5212fb225475f2087566eded7da5d727960 https://github.com/grpc/grpc-go.git
clone git github.com/miekg/pkcs11 df8ae6ca730422dba20c768ff38ef7d79077a59f
clone git github.com/docker/go v1.5.1-1-1-gbaf439e
clone git github.com/agl/ed25519 d2b94fd789ea21d12fac1a4443dd3a3f79cda72c
@ -109,7 +109,7 @@ clone git github.com/seccomp/libseccomp-golang 60c9953736798c4a04e90d0f3da2f933d
clone git github.com/coreos/go-systemd v4
clone git github.com/godbus/dbus v4.0.0
clone git github.com/syndtr/gocapability 2c00daeb6c3b45114c80ac44119e7b8801fdd852
clone git github.com/golang/protobuf 8d92cf5fc15a4382f8964b08e1f42a75c0591aa3
clone git github.com/golang/protobuf 3c84672111d91bb5ac31719e112f9f7126a0e26e
# gelf logging driver deps
clone git github.com/Graylog2/go-gelf aab2f594e4585d43468ac57287b0dece9d806883
@ -136,7 +136,7 @@ clone git google.golang.org/cloud dae7e3d993bc3812a2185af60552bb6b847e52a0 https
clone git github.com/docker/docker-credential-helpers v0.3.0
# containerd
clone git github.com/docker/containerd 57b7c3da915ebe943bd304c00890959b191e5264
clone git github.com/docker/containerd cf554d59dd96e459544748290eb9167f4bcde509
# cli
clone git github.com/spf13/cobra 75205f23b3ea70dc7ae5e900d074e010c23c37e9 https://github.com/dnephin/cobra.git

597
vendor/src/github.com/docker/containerd/api/grpc/types/api.pb.go vendored
View file

@ -115,14 +115,17 @@ func (*UpdateProcessResponse) ProtoMessage() {}
func (*UpdateProcessResponse) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{3} }
type CreateContainerRequest struct {
Id string `protobuf:"bytes,1,opt,name=id" json:"id,omitempty"`
BundlePath string `protobuf:"bytes,2,opt,name=bundlePath" json:"bundlePath,omitempty"`
Checkpoint string `protobuf:"bytes,3,opt,name=checkpoint" json:"checkpoint,omitempty"`
Stdin string `protobuf:"bytes,4,opt,name=stdin" json:"stdin,omitempty"`
Stdout string `protobuf:"bytes,5,opt,name=stdout" json:"stdout,omitempty"`
Stderr string `protobuf:"bytes,6,opt,name=stderr" json:"stderr,omitempty"`
Labels []string `protobuf:"bytes,7,rep,name=labels" json:"labels,omitempty"`
NoPivotRoot bool `protobuf:"varint,8,opt,name=noPivotRoot" json:"noPivotRoot,omitempty"`
Id string `protobuf:"bytes,1,opt,name=id" json:"id,omitempty"`
BundlePath string `protobuf:"bytes,2,opt,name=bundlePath" json:"bundlePath,omitempty"`
Checkpoint string `protobuf:"bytes,3,opt,name=checkpoint" json:"checkpoint,omitempty"`
Stdin string `protobuf:"bytes,4,opt,name=stdin" json:"stdin,omitempty"`
Stdout string `protobuf:"bytes,5,opt,name=stdout" json:"stdout,omitempty"`
Stderr string `protobuf:"bytes,6,opt,name=stderr" json:"stderr,omitempty"`
Labels []string `protobuf:"bytes,7,rep,name=labels" json:"labels,omitempty"`
NoPivotRoot bool `protobuf:"varint,8,opt,name=noPivotRoot" json:"noPivotRoot,omitempty"`
Runtime string `protobuf:"bytes,9,opt,name=runtime" json:"runtime,omitempty"`
RuntimeArgs []string `protobuf:"bytes,10,rep,name=runtimeArgs" json:"runtimeArgs,omitempty"`
CheckpointDir string `protobuf:"bytes,11,opt,name=checkpointDir" json:"checkpointDir,omitempty"`
}
func (m *CreateContainerRequest) Reset() { *m = CreateContainerRequest{} }
@ -233,8 +236,9 @@ func (*AddProcessResponse) ProtoMessage() {}
func (*AddProcessResponse) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{11} }
type CreateCheckpointRequest struct {
Id string `protobuf:"bytes,1,opt,name=id" json:"id,omitempty"`
Checkpoint *Checkpoint `protobuf:"bytes,2,opt,name=checkpoint" json:"checkpoint,omitempty"`
Id string `protobuf:"bytes,1,opt,name=id" json:"id,omitempty"`
Checkpoint *Checkpoint `protobuf:"bytes,2,opt,name=checkpoint" json:"checkpoint,omitempty"`
CheckpointDir string `protobuf:"bytes,3,opt,name=checkpointDir" json:"checkpointDir,omitempty"`
}
func (m *CreateCheckpointRequest) Reset() { *m = CreateCheckpointRequest{} }
@ -258,8 +262,9 @@ func (*CreateCheckpointResponse) ProtoMessage() {}
func (*CreateCheckpointResponse) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{13} }
type DeleteCheckpointRequest struct {
Id string `protobuf:"bytes,1,opt,name=id" json:"id,omitempty"`
Name string `protobuf:"bytes,2,opt,name=name" json:"name,omitempty"`
Id string `protobuf:"bytes,1,opt,name=id" json:"id,omitempty"`
Name string `protobuf:"bytes,2,opt,name=name" json:"name,omitempty"`
CheckpointDir string `protobuf:"bytes,3,opt,name=checkpointDir" json:"checkpointDir,omitempty"`
}
func (m *DeleteCheckpointRequest) Reset() { *m = DeleteCheckpointRequest{} }
@ -276,7 +281,8 @@ func (*DeleteCheckpointResponse) ProtoMessage() {}
func (*DeleteCheckpointResponse) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{15} }
type ListCheckpointRequest struct {
Id string `protobuf:"bytes,1,opt,name=id" json:"id,omitempty"`
Id string `protobuf:"bytes,1,opt,name=id" json:"id,omitempty"`
CheckpointDir string `protobuf:"bytes,2,opt,name=checkpointDir" json:"checkpointDir,omitempty"`
}
func (m *ListCheckpointRequest) Reset() { *m = ListCheckpointRequest{} }
@ -446,16 +452,17 @@ func (m *UpdateContainerRequest) GetResources() *UpdateResource {
}
type UpdateResource struct {
BlkioWeight uint32 `protobuf:"varint,1,opt,name=blkioWeight" json:"blkioWeight,omitempty"`
CpuShares uint32 `protobuf:"varint,2,opt,name=cpuShares" json:"cpuShares,omitempty"`
CpuPeriod uint32 `protobuf:"varint,3,opt,name=cpuPeriod" json:"cpuPeriod,omitempty"`
CpuQuota uint32 `protobuf:"varint,4,opt,name=cpuQuota" json:"cpuQuota,omitempty"`
CpusetCpus string `protobuf:"bytes,5,opt,name=cpusetCpus" json:"cpusetCpus,omitempty"`
CpusetMems string `protobuf:"bytes,6,opt,name=cpusetMems" json:"cpusetMems,omitempty"`
MemoryLimit uint32 `protobuf:"varint,7,opt,name=memoryLimit" json:"memoryLimit,omitempty"`
MemorySwap uint32 `protobuf:"varint,8,opt,name=memorySwap" json:"memorySwap,omitempty"`
MemoryReservation uint32 `protobuf:"varint,9,opt,name=memoryReservation" json:"memoryReservation,omitempty"`
KernelMemoryLimit uint32 `protobuf:"varint,10,opt,name=kernelMemoryLimit" json:"kernelMemoryLimit,omitempty"`
BlkioWeight uint32 `protobuf:"varint,1,opt,name=blkioWeight" json:"blkioWeight,omitempty"`
CpuShares uint32 `protobuf:"varint,2,opt,name=cpuShares" json:"cpuShares,omitempty"`
CpuPeriod uint32 `protobuf:"varint,3,opt,name=cpuPeriod" json:"cpuPeriod,omitempty"`
CpuQuota uint32 `protobuf:"varint,4,opt,name=cpuQuota" json:"cpuQuota,omitempty"`
CpusetCpus string `protobuf:"bytes,5,opt,name=cpusetCpus" json:"cpusetCpus,omitempty"`
CpusetMems string `protobuf:"bytes,6,opt,name=cpusetMems" json:"cpusetMems,omitempty"`
MemoryLimit uint32 `protobuf:"varint,7,opt,name=memoryLimit" json:"memoryLimit,omitempty"`
MemorySwap uint32 `protobuf:"varint,8,opt,name=memorySwap" json:"memorySwap,omitempty"`
MemoryReservation uint32 `protobuf:"varint,9,opt,name=memoryReservation" json:"memoryReservation,omitempty"`
KernelMemoryLimit uint32 `protobuf:"varint,10,opt,name=kernelMemoryLimit" json:"kernelMemoryLimit,omitempty"`
KernelTCPMemoryLimit uint32 `protobuf:"varint,11,opt,name=kernelTCPMemoryLimit" json:"kernelTCPMemoryLimit,omitempty"`
}
func (m *UpdateResource) Reset() { *m = UpdateResource{} }
@ -495,14 +502,14 @@ func (*Event) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{29} }
type NetworkStats struct {
Name string `protobuf:"bytes,1,opt,name=name" json:"name,omitempty"`
RxBytes uint64 `protobuf:"varint,2,opt,name=rx_bytes" json:"rx_bytes,omitempty"`
Rx_Packets uint64 `protobuf:"varint,3,opt,name=rx_Packets" json:"rx_Packets,omitempty"`
RxErrors uint64 `protobuf:"varint,4,opt,name=Rx_errors" json:"Rx_errors,omitempty"`
RxDropped uint64 `protobuf:"varint,5,opt,name=Rx_dropped" json:"Rx_dropped,omitempty"`
TxBytes uint64 `protobuf:"varint,6,opt,name=Tx_bytes" json:"Tx_bytes,omitempty"`
TxPackets uint64 `protobuf:"varint,7,opt,name=Tx_packets" json:"Tx_packets,omitempty"`
TxErrors uint64 `protobuf:"varint,8,opt,name=Tx_errors" json:"Tx_errors,omitempty"`
TxDropped uint64 `protobuf:"varint,9,opt,name=Tx_dropped" json:"Tx_dropped,omitempty"`
RxBytes uint64 `protobuf:"varint,2,opt,name=rx_bytes,json=rxBytes" json:"rx_bytes,omitempty"`
Rx_Packets uint64 `protobuf:"varint,3,opt,name=rx_Packets,json=rxPackets" json:"rx_Packets,omitempty"`
RxErrors uint64 `protobuf:"varint,4,opt,name=Rx_errors,json=rxErrors" json:"Rx_errors,omitempty"`
RxDropped uint64 `protobuf:"varint,5,opt,name=Rx_dropped,json=rxDropped" json:"Rx_dropped,omitempty"`
TxBytes uint64 `protobuf:"varint,6,opt,name=Tx_bytes,json=txBytes" json:"Tx_bytes,omitempty"`
TxPackets uint64 `protobuf:"varint,7,opt,name=Tx_packets,json=txPackets" json:"Tx_packets,omitempty"`
TxErrors uint64 `protobuf:"varint,8,opt,name=Tx_errors,json=txErrors" json:"Tx_errors,omitempty"`
TxDropped uint64 `protobuf:"varint,9,opt,name=Tx_dropped,json=txDropped" json:"Tx_dropped,omitempty"`
}
func (m *NetworkStats) Reset() { *m = NetworkStats{} }
@ -511,10 +518,10 @@ func (*NetworkStats) ProtoMessage() {}
func (*NetworkStats) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{30} }
type CpuUsage struct {
TotalUsage uint64 `protobuf:"varint,1,opt,name=total_usage" json:"total_usage,omitempty"`
PercpuUsage []uint64 `protobuf:"varint,2,rep,name=percpu_usage" json:"percpu_usage,omitempty"`
UsageInKernelmode uint64 `protobuf:"varint,3,opt,name=usage_in_kernelmode" json:"usage_in_kernelmode,omitempty"`
UsageInUsermode uint64 `protobuf:"varint,4,opt,name=usage_in_usermode" json:"usage_in_usermode,omitempty"`
TotalUsage uint64 `protobuf:"varint,1,opt,name=total_usage,json=totalUsage" json:"total_usage,omitempty"`
PercpuUsage []uint64 `protobuf:"varint,2,rep,name=percpu_usage,json=percpuUsage" json:"percpu_usage,omitempty"`
UsageInKernelmode uint64 `protobuf:"varint,3,opt,name=usage_in_kernelmode,json=usageInKernelmode" json:"usage_in_kernelmode,omitempty"`
UsageInUsermode uint64 `protobuf:"varint,4,opt,name=usage_in_usermode,json=usageInUsermode" json:"usage_in_usermode,omitempty"`
}
func (m *CpuUsage) Reset() { *m = CpuUsage{} }
@ -524,8 +531,8 @@ func (*CpuUsage) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{31
type ThrottlingData struct {
Periods uint64 `protobuf:"varint,1,opt,name=periods" json:"periods,omitempty"`
ThrottledPeriods uint64 `protobuf:"varint,2,opt,name=throttled_periods" json:"throttled_periods,omitempty"`
ThrottledTime uint64 `protobuf:"varint,3,opt,name=throttled_time" json:"throttled_time,omitempty"`
ThrottledPeriods uint64 `protobuf:"varint,2,opt,name=throttled_periods,json=throttledPeriods" json:"throttled_periods,omitempty"`
ThrottledTime uint64 `protobuf:"varint,3,opt,name=throttled_time,json=throttledTime" json:"throttled_time,omitempty"`
}
func (m *ThrottlingData) Reset() { *m = ThrottlingData{} }
@ -534,9 +541,9 @@ func (*ThrottlingData) ProtoMessage() {}
func (*ThrottlingData) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{32} }
type CpuStats struct {
CpuUsage *CpuUsage `protobuf:"bytes,1,opt,name=cpu_usage" json:"cpu_usage,omitempty"`
ThrottlingData *ThrottlingData `protobuf:"bytes,2,opt,name=throttling_data" json:"throttling_data,omitempty"`
SystemUsage uint64 `protobuf:"varint,3,opt,name=system_usage" json:"system_usage,omitempty"`
CpuUsage *CpuUsage `protobuf:"bytes,1,opt,name=cpu_usage,json=cpuUsage" json:"cpu_usage,omitempty"`
ThrottlingData *ThrottlingData `protobuf:"bytes,2,opt,name=throttling_data,json=throttlingData" json:"throttling_data,omitempty"`
SystemUsage uint64 `protobuf:"varint,3,opt,name=system_usage,json=systemUsage" json:"system_usage,omitempty"`
}
func (m *CpuStats) Reset() { *m = CpuStats{} }
@ -570,7 +577,7 @@ func (*PidsStats) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{3
type MemoryData struct {
Usage uint64 `protobuf:"varint,1,opt,name=usage" json:"usage,omitempty"`
MaxUsage uint64 `protobuf:"varint,2,opt,name=max_usage" json:"max_usage,omitempty"`
MaxUsage uint64 `protobuf:"varint,2,opt,name=max_usage,json=maxUsage" json:"max_usage,omitempty"`
Failcnt uint64 `protobuf:"varint,3,opt,name=failcnt" json:"failcnt,omitempty"`
Limit uint64 `protobuf:"varint,4,opt,name=limit" json:"limit,omitempty"`
}
@ -583,8 +590,8 @@ func (*MemoryData) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{
type MemoryStats struct {
Cache uint64 `protobuf:"varint,1,opt,name=cache" json:"cache,omitempty"`
Usage *MemoryData `protobuf:"bytes,2,opt,name=usage" json:"usage,omitempty"`
SwapUsage *MemoryData `protobuf:"bytes,3,opt,name=swap_usage" json:"swap_usage,omitempty"`
KernelUsage *MemoryData `protobuf:"bytes,4,opt,name=kernel_usage" json:"kernel_usage,omitempty"`
SwapUsage *MemoryData `protobuf:"bytes,3,opt,name=swap_usage,json=swapUsage" json:"swap_usage,omitempty"`
KernelUsage *MemoryData `protobuf:"bytes,4,opt,name=kernel_usage,json=kernelUsage" json:"kernel_usage,omitempty"`
Stats map[string]uint64 `protobuf:"bytes,5,rep,name=stats" json:"stats,omitempty" protobuf_key:"bytes,1,opt,name=key" protobuf_val:"varint,2,opt,name=value"`
}
@ -634,14 +641,14 @@ func (*BlkioStatsEntry) ProtoMessage() {}
func (*BlkioStatsEntry) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{37} }
type BlkioStats struct {
IoServiceBytesRecursive []*BlkioStatsEntry `protobuf:"bytes,1,rep,name=io_service_bytes_recursive" json:"io_service_bytes_recursive,omitempty"`
IoServicedRecursive []*BlkioStatsEntry `protobuf:"bytes,2,rep,name=io_serviced_recursive" json:"io_serviced_recursive,omitempty"`
IoQueuedRecursive []*BlkioStatsEntry `protobuf:"bytes,3,rep,name=io_queued_recursive" json:"io_queued_recursive,omitempty"`
IoServiceTimeRecursive []*BlkioStatsEntry `protobuf:"bytes,4,rep,name=io_service_time_recursive" json:"io_service_time_recursive,omitempty"`
IoWaitTimeRecursive []*BlkioStatsEntry `protobuf:"bytes,5,rep,name=io_wait_time_recursive" json:"io_wait_time_recursive,omitempty"`
IoMergedRecursive []*BlkioStatsEntry `protobuf:"bytes,6,rep,name=io_merged_recursive" json:"io_merged_recursive,omitempty"`
IoTimeRecursive []*BlkioStatsEntry `protobuf:"bytes,7,rep,name=io_time_recursive" json:"io_time_recursive,omitempty"`
SectorsRecursive []*BlkioStatsEntry `protobuf:"bytes,8,rep,name=sectors_recursive" json:"sectors_recursive,omitempty"`
IoServiceBytesRecursive []*BlkioStatsEntry `protobuf:"bytes,1,rep,name=io_service_bytes_recursive,json=ioServiceBytesRecursive" json:"io_service_bytes_recursive,omitempty"`
IoServicedRecursive []*BlkioStatsEntry `protobuf:"bytes,2,rep,name=io_serviced_recursive,json=ioServicedRecursive" json:"io_serviced_recursive,omitempty"`
IoQueuedRecursive []*BlkioStatsEntry `protobuf:"bytes,3,rep,name=io_queued_recursive,json=ioQueuedRecursive" json:"io_queued_recursive,omitempty"`
IoServiceTimeRecursive []*BlkioStatsEntry `protobuf:"bytes,4,rep,name=io_service_time_recursive,json=ioServiceTimeRecursive" json:"io_service_time_recursive,omitempty"`
IoWaitTimeRecursive []*BlkioStatsEntry `protobuf:"bytes,5,rep,name=io_wait_time_recursive,json=ioWaitTimeRecursive" json:"io_wait_time_recursive,omitempty"`
IoMergedRecursive []*BlkioStatsEntry `protobuf:"bytes,6,rep,name=io_merged_recursive,json=ioMergedRecursive" json:"io_merged_recursive,omitempty"`
IoTimeRecursive []*BlkioStatsEntry `protobuf:"bytes,7,rep,name=io_time_recursive,json=ioTimeRecursive" json:"io_time_recursive,omitempty"`
SectorsRecursive []*BlkioStatsEntry `protobuf:"bytes,8,rep,name=sectors_recursive,json=sectorsRecursive" json:"sectors_recursive,omitempty"`
}
func (m *BlkioStats) Reset() { *m = BlkioStats{} }
@ -707,7 +714,7 @@ func (m *BlkioStats) GetSectorsRecursive() []*BlkioStatsEntry {
type HugetlbStats struct {
Usage uint64 `protobuf:"varint,1,opt,name=usage" json:"usage,omitempty"`
MaxUsage uint64 `protobuf:"varint,2,opt,name=max_usage" json:"max_usage,omitempty"`
MaxUsage uint64 `protobuf:"varint,2,opt,name=max_usage,json=maxUsage" json:"max_usage,omitempty"`
Failcnt uint64 `protobuf:"varint,3,opt,name=failcnt" json:"failcnt,omitempty"`
Limit uint64 `protobuf:"varint,4,opt,name=limit" json:"limit,omitempty"`
}
@ -718,11 +725,11 @@ func (*HugetlbStats) ProtoMessage() {}
func (*HugetlbStats) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{39} }
type CgroupStats struct {
CpuStats *CpuStats `protobuf:"bytes,1,opt,name=cpu_stats" json:"cpu_stats,omitempty"`
MemoryStats *MemoryStats `protobuf:"bytes,2,opt,name=memory_stats" json:"memory_stats,omitempty"`
BlkioStats *BlkioStats `protobuf:"bytes,3,opt,name=blkio_stats" json:"blkio_stats,omitempty"`
HugetlbStats map[string]*HugetlbStats `protobuf:"bytes,4,rep,name=hugetlb_stats" json:"hugetlb_stats,omitempty" protobuf_key:"bytes,1,opt,name=key" protobuf_val:"bytes,2,opt,name=value"`
PidsStats *PidsStats `protobuf:"bytes,5,opt,name=pids_stats" json:"pids_stats,omitempty"`
CpuStats *CpuStats `protobuf:"bytes,1,opt,name=cpu_stats,json=cpuStats" json:"cpu_stats,omitempty"`
MemoryStats *MemoryStats `protobuf:"bytes,2,opt,name=memory_stats,json=memoryStats" json:"memory_stats,omitempty"`
BlkioStats *BlkioStats `protobuf:"bytes,3,opt,name=blkio_stats,json=blkioStats" json:"blkio_stats,omitempty"`
HugetlbStats map[string]*HugetlbStats `protobuf:"bytes,4,rep,name=hugetlb_stats,json=hugetlbStats" json:"hugetlb_stats,omitempty" protobuf_key:"bytes,1,opt,name=key" protobuf_val:"bytes,2,opt,name=value"`
PidsStats *PidsStats `protobuf:"bytes,5,opt,name=pids_stats,json=pidsStats" json:"pids_stats,omitempty"`
}
func (m *CgroupStats) Reset() { *m = CgroupStats{} }
@ -766,8 +773,8 @@ func (m *CgroupStats) GetPidsStats() *PidsStats {
}
type StatsResponse struct {
NetworkStats []*NetworkStats `protobuf:"bytes,1,rep,name=network_stats" json:"network_stats,omitempty"`
CgroupStats *CgroupStats `protobuf:"bytes,2,opt,name=cgroup_stats" json:"cgroup_stats,omitempty"`
NetworkStats []*NetworkStats `protobuf:"bytes,1,rep,name=network_stats,json=networkStats" json:"network_stats,omitempty"`
CgroupStats *CgroupStats `protobuf:"bytes,2,opt,name=cgroup_stats,json=cgroupStats" json:"cgroup_stats,omitempty"`
Timestamp uint64 `protobuf:"varint,3,opt,name=timestamp" json:"timestamp,omitempty"`
}
@ -849,6 +856,10 @@ func init() {
var _ context.Context
var _ grpc.ClientConn
// This is a compile-time assertion to ensure that this generated file
// is compatible with the grpc package it is being compiled against.
const _ = grpc.SupportPackageIsVersion2
// Client API for API service
type APIClient interface {
@ -1026,124 +1037,184 @@ func RegisterAPIServer(s *grpc.Server, srv APIServer) {
s.RegisterService(&_API_serviceDesc, srv)
}
func _API_GetServerVersion_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error) (interface{}, error) {
func _API_GetServerVersion_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
in := new(GetServerVersionRequest)
if err := dec(in); err != nil {
return nil, err
}
out, err := srv.(APIServer).GetServerVersion(ctx, in)
if err != nil {
return nil, err
if interceptor == nil {
return srv.(APIServer).GetServerVersion(ctx, in)
}
return out, nil
info := &grpc.UnaryServerInfo{
Server: srv,
FullMethod: "/types.API/GetServerVersion",
}
handler := func(ctx context.Context, req interface{}) (interface{}, error) {
return srv.(APIServer).GetServerVersion(ctx, req.(*GetServerVersionRequest))
}
return interceptor(ctx, in, info, handler)
}
func _API_CreateContainer_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error) (interface{}, error) {
func _API_CreateContainer_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
in := new(CreateContainerRequest)
if err := dec(in); err != nil {
return nil, err
}
out, err := srv.(APIServer).CreateContainer(ctx, in)
if err != nil {
return nil, err
if interceptor == nil {
return srv.(APIServer).CreateContainer(ctx, in)
}
return out, nil
info := &grpc.UnaryServerInfo{
Server: srv,
FullMethod: "/types.API/CreateContainer",
}
handler := func(ctx context.Context, req interface{}) (interface{}, error) {
return srv.(APIServer).CreateContainer(ctx, req.(*CreateContainerRequest))
}
return interceptor(ctx, in, info, handler)
}
func _API_UpdateContainer_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error) (interface{}, error) {
func _API_UpdateContainer_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
in := new(UpdateContainerRequest)
if err := dec(in); err != nil {
return nil, err
}
out, err := srv.(APIServer).UpdateContainer(ctx, in)
if err != nil {
return nil, err
if interceptor == nil {
return srv.(APIServer).UpdateContainer(ctx, in)
}
return out, nil
info := &grpc.UnaryServerInfo{
Server: srv,
FullMethod: "/types.API/UpdateContainer",
}
handler := func(ctx context.Context, req interface{}) (interface{}, error) {
return srv.(APIServer).UpdateContainer(ctx, req.(*UpdateContainerRequest))
}
return interceptor(ctx, in, info, handler)
}
func _API_Signal_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error) (interface{}, error) {
func _API_Signal_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
in := new(SignalRequest)
if err := dec(in); err != nil {
return nil, err
}
out, err := srv.(APIServer).Signal(ctx, in)
if err != nil {
return nil, err
if interceptor == nil {
return srv.(APIServer).Signal(ctx, in)
}
return out, nil
info := &grpc.UnaryServerInfo{
Server: srv,
FullMethod: "/types.API/Signal",
}
handler := func(ctx context.Context, req interface{}) (interface{}, error) {
return srv.(APIServer).Signal(ctx, req.(*SignalRequest))
}
return interceptor(ctx, in, info, handler)
}
func _API_UpdateProcess_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error) (interface{}, error) {
func _API_UpdateProcess_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
in := new(UpdateProcessRequest)
if err := dec(in); err != nil {
return nil, err
}
out, err := srv.(APIServer).UpdateProcess(ctx, in)
if err != nil {
return nil, err
if interceptor == nil {
return srv.(APIServer).UpdateProcess(ctx, in)
}
return out, nil
info := &grpc.UnaryServerInfo{
Server: srv,
FullMethod: "/types.API/UpdateProcess",
}
handler := func(ctx context.Context, req interface{}) (interface{}, error) {
return srv.(APIServer).UpdateProcess(ctx, req.(*UpdateProcessRequest))
}
return interceptor(ctx, in, info, handler)
}
func _API_AddProcess_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error) (interface{}, error) {
func _API_AddProcess_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
in := new(AddProcessRequest)
if err := dec(in); err != nil {
return nil, err
}
out, err := srv.(APIServer).AddProcess(ctx, in)
if err != nil {
return nil, err
if interceptor == nil {
return srv.(APIServer).AddProcess(ctx, in)
}
return out, nil
info := &grpc.UnaryServerInfo{
Server: srv,
FullMethod: "/types.API/AddProcess",
}
handler := func(ctx context.Context, req interface{}) (interface{}, error) {
return srv.(APIServer).AddProcess(ctx, req.(*AddProcessRequest))
}
return interceptor(ctx, in, info, handler)
}
func _API_CreateCheckpoint_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error) (interface{}, error) {
func _API_CreateCheckpoint_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
in := new(CreateCheckpointRequest)
if err := dec(in); err != nil {
return nil, err
}
out, err := srv.(APIServer).CreateCheckpoint(ctx, in)
if err != nil {
return nil, err
if interceptor == nil {
return srv.(APIServer).CreateCheckpoint(ctx, in)
}
return out, nil
info := &grpc.UnaryServerInfo{
Server: srv,
FullMethod: "/types.API/CreateCheckpoint",
}
handler := func(ctx context.Context, req interface{}) (interface{}, error) {
return srv.(APIServer).CreateCheckpoint(ctx, req.(*CreateCheckpointRequest))
}
return interceptor(ctx, in, info, handler)
}
func _API_DeleteCheckpoint_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error) (interface{}, error) {
func _API_DeleteCheckpoint_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
in := new(DeleteCheckpointRequest)
if err := dec(in); err != nil {
return nil, err
}
out, err := srv.(APIServer).DeleteCheckpoint(ctx, in)
if err != nil {
return nil, err
if interceptor == nil {
return srv.(APIServer).DeleteCheckpoint(ctx, in)
}
return out, nil
info := &grpc.UnaryServerInfo{
Server: srv,
FullMethod: "/types.API/DeleteCheckpoint",
}
handler := func(ctx context.Context, req interface{}) (interface{}, error) {
return srv.(APIServer).DeleteCheckpoint(ctx, req.(*DeleteCheckpointRequest))
}
return interceptor(ctx, in, info, handler)
}
func _API_ListCheckpoint_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error) (interface{}, error) {
func _API_ListCheckpoint_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
in := new(ListCheckpointRequest)
if err := dec(in); err != nil {
return nil, err
}
out, err := srv.(APIServer).ListCheckpoint(ctx, in)
if err != nil {
return nil, err
if interceptor == nil {
return srv.(APIServer).ListCheckpoint(ctx, in)
}
return out, nil
info := &grpc.UnaryServerInfo{
Server: srv,
FullMethod: "/types.API/ListCheckpoint",
}
handler := func(ctx context.Context, req interface{}) (interface{}, error) {
return srv.(APIServer).ListCheckpoint(ctx, req.(*ListCheckpointRequest))
}
return interceptor(ctx, in, info, handler)
}
func _API_State_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error) (interface{}, error) {
func _API_State_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
in := new(StateRequest)
if err := dec(in); err != nil {
return nil, err
}
out, err := srv.(APIServer).State(ctx, in)
if err != nil {
return nil, err
if interceptor == nil {
return srv.(APIServer).State(ctx, in)
}
return out, nil
info := &grpc.UnaryServerInfo{
Server: srv,
FullMethod: "/types.API/State",
}
handler := func(ctx context.Context, req interface{}) (interface{}, error) {
return srv.(APIServer).State(ctx, req.(*StateRequest))
}
return interceptor(ctx, in, info, handler)
}
func _API_Events_Handler(srv interface{}, stream grpc.ServerStream) error {
@ -1167,16 +1238,22 @@ func (x *aPIEventsServer) Send(m *Event) error {
return x.ServerStream.SendMsg(m)
}
func _API_Stats_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error) (interface{}, error) {
func _API_Stats_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
in := new(StatsRequest)
if err := dec(in); err != nil {
return nil, err
}
out, err := srv.(APIServer).Stats(ctx, in)
if err != nil {
return nil, err
if interceptor == nil {
return srv.(APIServer).Stats(ctx, in)
}
return out, nil
info := &grpc.UnaryServerInfo{
Server: srv,
FullMethod: "/types.API/Stats",
}
handler := func(ctx context.Context, req interface{}) (interface{}, error) {
return srv.(APIServer).Stats(ctx, req.(*StatsRequest))
}
return interceptor(ctx, in, info, handler)
}
var _API_serviceDesc = grpc.ServiceDesc{
@ -1238,148 +1315,152 @@ var _API_serviceDesc = grpc.ServiceDesc{
}
var fileDescriptor0 = []byte{
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}

7
vendor/src/github.com/docker/containerd/api/grpc/types/api.proto vendored
View file

@ -47,6 +47,9 @@ message CreateContainerRequest {
string stderr = 6; // path to file where stderr will be written (optional)
repeated string labels = 7;
bool noPivotRoot = 8;
string runtime = 9;
repeated string runtimeArgs = 10;
string checkpointDir = 11; // Directory where checkpoints are stored
}
message CreateContainerResponse {
@ -98,6 +101,7 @@ message AddProcessResponse {
message CreateCheckpointRequest {
string id = 1; // ID of container
Checkpoint checkpoint = 2; // Checkpoint configuration
string checkpointDir = 3; // Directory where checkpoints are stored
}
message CreateCheckpointResponse {
@ -106,6 +110,7 @@ message CreateCheckpointResponse {
message DeleteCheckpointRequest {
string id = 1; // ID of container
string name = 2; // Name of checkpoint
string checkpointDir = 3; // Directory where checkpoints are stored
}
message DeleteCheckpointResponse {
@ -113,6 +118,7 @@ message DeleteCheckpointResponse {
message ListCheckpointRequest {
string id = 1; // ID of container
string checkpointDir = 2; // Directory where checkpoints are stored
}
message Checkpoint {
@ -193,6 +199,7 @@ message UpdateResource {
uint32 memorySwap = 8;
uint32 memoryReservation = 9;
uint32 kernelMemoryLimit = 10;
uint32 kernelTCPMemoryLimit = 11;
}
message UpdateContainerResponse {

2
vendor/src/github.com/golang/protobuf/proto/Makefile vendored
View file

@ -39,5 +39,5 @@ test: install generate-test-pbs
generate-test-pbs:
make install
make -C testdata
protoc --go_out=Mtestdata/test.proto=github.com/golang/protobuf/proto/testdata,Mgoogle/protobuf/any.proto=github.com/golang/protobuf/ptypes/any:. proto3_proto/proto3.proto
protoc --go_out=Mtestdata/test.proto=github.com/golang/protobuf/proto/testdata:. proto3_proto/proto3.proto
make

9
vendor/src/github.com/golang/protobuf/proto/decode.go vendored
View file

@ -768,11 +768,10 @@ func (o *Buffer) dec_new_map(p *Properties, base structPointer) error {
}
}
keyelem, valelem := keyptr.Elem(), valptr.Elem()
if !keyelem.IsValid() {
keyelem = reflect.Zero(p.mtype.Key())
}
if !valelem.IsValid() {
valelem = reflect.Zero(p.mtype.Elem())
if !keyelem.IsValid() || !valelem.IsValid() {
// We did not decode the key or the value in the map entry.
// Either way, it's an invalid map entry.
return fmt.Errorf("proto: bad map data: missing key/val")
}
v.SetMapIndex(keyelem, valelem)

8
vendor/src/github.com/golang/protobuf/proto/encode.go vendored
View file

@ -64,10 +64,6 @@ var (
// a struct with a repeated field containing a nil element.
errRepeatedHasNil = errors.New("proto: repeated field has nil element")
// errOneofHasNil is the error returned if Marshal is called with
// a struct with a oneof field containing a nil element.
errOneofHasNil = errors.New("proto: oneof field has nil value")
// ErrNil is the error returned if Marshal is called with nil.
ErrNil = errors.New("proto: Marshal called with nil")
)
@ -1226,9 +1222,7 @@ func (o *Buffer) enc_struct(prop *StructProperties, base structPointer) error {
// Do oneof fields.
if prop.oneofMarshaler != nil {
m := structPointer_Interface(base, prop.stype).(Message)
if err := prop.oneofMarshaler(m, o); err == ErrNil {
return errOneofHasNil
} else if err != nil {
if err := prop.oneofMarshaler(m, o); err != nil {
return err
}
}

133
vendor/src/github.com/golang/protobuf/proto/text.go vendored
View file

@ -175,93 +175,7 @@ type raw interface {
Bytes() []byte
}
func requiresQuotes(u string) bool {
// When type URL contains any characters except [0-9A-Za-z./\-]*, it must be quoted.
for _, ch := range u {
switch {
case ch == '.' || ch == '/' || ch == '_':
continue
case '0' <= ch && ch <= '9':
continue
case 'A' <= ch && ch <= 'Z':
continue
case 'a' <= ch && ch <= 'z':
continue
default:
return true
}
}
return false
}
// isAny reports whether sv is a google.protobuf.Any message
func isAny(sv reflect.Value) bool {
type wkt interface {
XXX_WellKnownType() string
}
t, ok := sv.Addr().Interface().(wkt)
return ok && t.XXX_WellKnownType() == "Any"
}
// writeProto3Any writes an expanded google.protobuf.Any message.
//
// It returns (false, nil) if sv value can't be unmarshaled (e.g. because
// required messages are not linked in).
//
// It returns (true, error) when sv was written in expanded format or an error
// was encountered.
func (tm *TextMarshaler) writeProto3Any(w *textWriter, sv reflect.Value) (bool, error) {
turl := sv.FieldByName("TypeUrl")
val := sv.FieldByName("Value")
if !turl.IsValid() || !val.IsValid() {
return true, errors.New("proto: invalid google.protobuf.Any message")
}
b, ok := val.Interface().([]byte)
if !ok {
return true, errors.New("proto: invalid google.protobuf.Any message")
}
parts := strings.Split(turl.String(), "/")
mt := MessageType(parts[len(parts)-1])
if mt == nil {
return false, nil
}
m := reflect.New(mt.Elem())
if err := Unmarshal(b, m.Interface().(Message)); err != nil {
return false, nil
}
w.Write([]byte("["))
u := turl.String()
if requiresQuotes(u) {
writeString(w, u)
} else {
w.Write([]byte(u))
}
if w.compact {
w.Write([]byte("]:<"))
} else {
w.Write([]byte("]: <\n"))
w.ind++
}
if err := tm.writeStruct(w, m.Elem()); err != nil {
return true, err
}
if w.compact {
w.Write([]byte("> "))
} else {
w.ind--
w.Write([]byte(">\n"))
}
return true, nil
}
func (tm *TextMarshaler) writeStruct(w *textWriter, sv reflect.Value) error {
if tm.ExpandAny && isAny(sv) {
if canExpand, err := tm.writeProto3Any(w, sv); canExpand {
return err
}
}
func writeStruct(w *textWriter, sv reflect.Value) error {
st := sv.Type()
sprops := GetProperties(st)
for i := 0; i < sv.NumField(); i++ {
@ -313,7 +227,7 @@ func (tm *TextMarshaler) writeStruct(w *textWriter, sv reflect.Value) error {
}
continue
}
if err := tm.writeAny(w, v, props); err != nil {
if err := writeAny(w, v, props); err != nil {
return err
}
if err := w.WriteByte('\n'); err != nil {
@ -355,7 +269,7 @@ func (tm *TextMarshaler) writeStruct(w *textWriter, sv reflect.Value) error {
return err
}
}
if err := tm.writeAny(w, key, props.mkeyprop); err != nil {
if err := writeAny(w, key, props.mkeyprop); err != nil {
return err
}
if err := w.WriteByte('\n'); err != nil {
@ -372,7 +286,7 @@ func (tm *TextMarshaler) writeStruct(w *textWriter, sv reflect.Value) error {
return err
}
}
if err := tm.writeAny(w, val, props.mvalprop); err != nil {
if err := writeAny(w, val, props.mvalprop); err != nil {
return err
}
if err := w.WriteByte('\n'); err != nil {
@ -444,7 +358,7 @@ func (tm *TextMarshaler) writeStruct(w *textWriter, sv reflect.Value) error {
}
// Enums have a String method, so writeAny will work fine.
if err := tm.writeAny(w, fv, props); err != nil {
if err := writeAny(w, fv, props); err != nil {
return err
}
@ -456,7 +370,7 @@ func (tm *TextMarshaler) writeStruct(w *textWriter, sv reflect.Value) error {
// Extensions (the XXX_extensions field).
pv := sv.Addr()
if pv.Type().Implements(extendableProtoType) {
if err := tm.writeExtensions(w, pv); err != nil {
if err := writeExtensions(w, pv); err != nil {
return err
}
}
@ -486,7 +400,7 @@ func writeRaw(w *textWriter, b []byte) error {
}
// writeAny writes an arbitrary field.
func (tm *TextMarshaler) writeAny(w *textWriter, v reflect.Value, props *Properties) error {
func writeAny(w *textWriter, v reflect.Value, props *Properties) error {
v = reflect.Indirect(v)
// Floats have special cases.
@ -535,15 +449,15 @@ func (tm *TextMarshaler) writeAny(w *textWriter, v reflect.Value, props *Propert
}
}
w.indent()
if etm, ok := v.Interface().(encoding.TextMarshaler); ok {
text, err := etm.MarshalText()
if tm, ok := v.Interface().(encoding.TextMarshaler); ok {
text, err := tm.MarshalText()
if err != nil {
return err
}
if _, err = w.Write(text); err != nil {
return err
}
} else if err := tm.writeStruct(w, v); err != nil {
} else if err := writeStruct(w, v); err != nil {
return err
}
w.unindent()
@ -687,7 +601,7 @@ func (s int32Slice) Swap(i, j int) { s[i], s[j] = s[j], s[i] }
// writeExtensions writes all the extensions in pv.
// pv is assumed to be a pointer to a protocol message struct that is extendable.
func (tm *TextMarshaler) writeExtensions(w *textWriter, pv reflect.Value) error {
func writeExtensions(w *textWriter, pv reflect.Value) error {
emap := extensionMaps[pv.Type().Elem()]
ep := pv.Interface().(extendableProto)
@ -722,13 +636,13 @@ func (tm *TextMarshaler) writeExtensions(w *textWriter, pv reflect.Value) error
// Repeated extensions will appear as a slice.
if !desc.repeated() {
if err := tm.writeExtension(w, desc.Name, pb); err != nil {
if err := writeExtension(w, desc.Name, pb); err != nil {
return err
}
} else {
v := reflect.ValueOf(pb)
for i := 0; i < v.Len(); i++ {
if err := tm.writeExtension(w, desc.Name, v.Index(i).Interface()); err != nil {
if err := writeExtension(w, desc.Name, v.Index(i).Interface()); err != nil {
return err
}
}
@ -737,7 +651,7 @@ func (tm *TextMarshaler) writeExtensions(w *textWriter, pv reflect.Value) error
return nil
}
func (tm *TextMarshaler) writeExtension(w *textWriter, name string, pb interface{}) error {
func writeExtension(w *textWriter, name string, pb interface{}) error {
if _, err := fmt.Fprintf(w, "[%s]:", name); err != nil {
return err
}
@ -746,7 +660,7 @@ func (tm *TextMarshaler) writeExtension(w *textWriter, name string, pb interface
return err
}
}
if err := tm.writeAny(w, reflect.ValueOf(pb), nil); err != nil {
if err := writeAny(w, reflect.ValueOf(pb), nil); err != nil {
return err
}
if err := w.WriteByte('\n'); err != nil {
@ -773,13 +687,12 @@ func (w *textWriter) writeIndent() {
// TextMarshaler is a configurable text format marshaler.
type TextMarshaler struct {
Compact bool // use compact text format (one line).
ExpandAny bool // expand google.protobuf.Any messages of known types
Compact bool // use compact text format (one line).
}
// Marshal writes a given protocol buffer in text format.
// The only errors returned are from w.
func (tm *TextMarshaler) Marshal(w io.Writer, pb Message) error {
func (m *TextMarshaler) Marshal(w io.Writer, pb Message) error {
val := reflect.ValueOf(pb)
if pb == nil || val.IsNil() {
w.Write([]byte("<nil>"))
@ -794,11 +707,11 @@ func (tm *TextMarshaler) Marshal(w io.Writer, pb Message) error {
aw := &textWriter{
w: ww,
complete: true,
compact: tm.Compact,
compact: m.Compact,
}
if etm, ok := pb.(encoding.TextMarshaler); ok {
text, err := etm.MarshalText()
if tm, ok := pb.(encoding.TextMarshaler); ok {
text, err := tm.MarshalText()
if err != nil {
return err
}
@ -812,7 +725,7 @@ func (tm *TextMarshaler) Marshal(w io.Writer, pb Message) error {
}
// Dereference the received pointer so we don't have outer < and >.
v := reflect.Indirect(val)
if err := tm.writeStruct(aw, v); err != nil {
if err := writeStruct(aw, v); err != nil {
return err
}
if bw != nil {
@ -822,9 +735,9 @@ func (tm *TextMarshaler) Marshal(w io.Writer, pb Message) error {
}
// Text is the same as Marshal, but returns the string directly.
func (tm *TextMarshaler) Text(pb Message) string {
func (m *TextMarshaler) Text(pb Message) string {
var buf bytes.Buffer
tm.Marshal(&buf, pb)
m.Marshal(&buf, pb)
return buf.String()
}

97
vendor/src/github.com/golang/protobuf/proto/text_parser.go vendored
View file

@ -163,7 +163,7 @@ func (p *textParser) advance() {
p.cur.offset, p.cur.line = p.offset, p.line
p.cur.unquoted = ""
switch p.s[0] {
case '<', '>', '{', '}', ':', '[', ']', ';', ',', '/':
case '<', '>', '{', '}', ':', '[', ']', ';', ',':
// Single symbol
p.cur.value, p.s = p.s[0:1], p.s[1:len(p.s)]
case '"', '\'':
@ -451,10 +451,7 @@ func (p *textParser) readStruct(sv reflect.Value, terminator string) error {
fieldSet := make(map[string]bool)
// A struct is a sequence of "name: value", terminated by one of
// '>' or '}', or the end of the input. A name may also be
// "[extension]" or "[type/url]".
//
// The whole struct can also be an expanded Any message, like:
// [type/url] < ... struct contents ... >
// "[extension]".
for {
tok := p.next()
if tok.err != nil {
@ -464,66 +461,33 @@ func (p *textParser) readStruct(sv reflect.Value, terminator string) error {
break
}
if tok.value == "[" {
// Looks like an extension or an Any.
// Looks like an extension.
//
// TODO: Check whether we need to handle
// namespace rooted names (e.g. ".something.Foo").
extName, err := p.consumeExtName()
if err != nil {
return err
tok = p.next()
if tok.err != nil {
return tok.err
}
if s := strings.LastIndex(extName, "/"); s >= 0 {
// If it contains a slash, it's an Any type URL.
messageName := extName[s+1:]
mt := MessageType(messageName)
if mt == nil {
return p.errorf("unrecognized message %q in google.protobuf.Any", messageName)
}
tok = p.next()
if tok.err != nil {
return tok.err
}
// consume an optional colon
if tok.value == ":" {
tok = p.next()
if tok.err != nil {
return tok.err
}
}
var terminator string
switch tok.value {
case "<":
terminator = ">"
case "{":
terminator = "}"
default:
return p.errorf("expected '{' or '<', found %q", tok.value)
}
v := reflect.New(mt.Elem())
if pe := p.readStruct(v.Elem(), terminator); pe != nil {
return pe
}
b, err := Marshal(v.Interface().(Message))
if err != nil {
return p.errorf("failed to marshal message of type %q: %v", messageName, err)
}
sv.FieldByName("TypeUrl").SetString(extName)
sv.FieldByName("Value").SetBytes(b)
continue
}
var desc *ExtensionDesc
// This could be faster, but it's functional.
// TODO: Do something smarter than a linear scan.
for _, d := range RegisteredExtensions(reflect.New(st).Interface().(Message)) {
if d.Name == extName {
if d.Name == tok.value {
desc = d
break
}
}
if desc == nil {
return p.errorf("unrecognized extension %q", extName)
return p.errorf("unrecognized extension %q", tok.value)
}
// Check the extension terminator.
tok = p.next()
if tok.err != nil {
return tok.err
}
if tok.value != "]" {
return p.errorf("unrecognized extension terminator %q", tok.value)
}
props := &Properties{}
@ -679,35 +643,6 @@ func (p *textParser) readStruct(sv reflect.Value, terminator string) error {
return reqFieldErr
}
// consumeExtName consumes extension name or expanded Any type URL and the
// following ']'. It returns the name or URL consumed.
func (p *textParser) consumeExtName() (string, error) {
tok := p.next()
if tok.err != nil {
return "", tok.err
}
// If extension name or type url is quoted, it's a single token.
if len(tok.value) > 2 && isQuote(tok.value[0]) && tok.value[len(tok.value)-1] == tok.value[0] {
name, err := unquoteC(tok.value[1:len(tok.value)-1], rune(tok.value[0]))
if err != nil {
return "", err
}
return name, p.consumeToken("]")
}
// Consume everything up to "]"
var parts []string
for tok.value != "]" {
parts = append(parts, tok.value)
tok = p.next()
if tok.err != nil {
return "", p.errorf("unrecognized type_url or extension name: %s", tok.err)
}
}
return strings.Join(parts, ""), nil
}
// consumeOptionalSeparator consumes an optional semicolon or comma.
// It is used in readStruct to provide backward compatibility.
func (p *textParser) consumeOptionalSeparator() error {

14
vendor/src/golang.org/x/net/context/context.go vendored
View file

@ -189,7 +189,7 @@ func Background() Context {
}
// TODO returns a non-nil, empty Context. Code should use context.TODO when
// it's unclear which Context to use or it's is not yet available (because the
// it's unclear which Context to use or it is not yet available (because the
// surrounding function has not yet been extended to accept a Context
// parameter). TODO is recognized by static analysis tools that determine
// whether Contexts are propagated correctly in a program.
@ -210,13 +210,13 @@ type CancelFunc func()
// call cancel as soon as the operations running in this Context complete.
func WithCancel(parent Context) (ctx Context, cancel CancelFunc) {
c := newCancelCtx(parent)
propagateCancel(parent, &c)
return &c, func() { c.cancel(true, Canceled) }
propagateCancel(parent, c)
return c, func() { c.cancel(true, Canceled) }
}
// newCancelCtx returns an initialized cancelCtx.
func newCancelCtx(parent Context) cancelCtx {
return cancelCtx{
func newCancelCtx(parent Context) *cancelCtx {
return &cancelCtx{
Context: parent,
done: make(chan struct{}),
}
@ -259,7 +259,7 @@ func parentCancelCtx(parent Context) (*cancelCtx, bool) {
case *cancelCtx:
return c, true
case *timerCtx:
return &c.cancelCtx, true
return c.cancelCtx, true
case *valueCtx:
parent = c.Context
default:
@ -377,7 +377,7 @@ func WithDeadline(parent Context, deadline time.Time) (Context, CancelFunc) {
// implement Done and Err. It implements cancel by stopping its timer then
// delegating to cancelCtx.cancel.
type timerCtx struct {
cancelCtx
*cancelCtx
timer *time.Timer // Under cancelCtx.mu.
deadline time.Time

1
vendor/src/golang.org/x/net/context/ctxhttp/cancelreq.go vendored
View file

@ -9,6 +9,7 @@ package ctxhttp
import "net/http"
func canceler(client *http.Client, req *http.Request) func() {
// TODO(djd): Respect any existing value of req.Cancel.
ch := make(chan struct{})
req.Cancel = ch

68
vendor/src/golang.org/x/net/context/ctxhttp/ctxhttp.go vendored
View file

@ -14,6 +14,14 @@ import (
"golang.org/x/net/context"
)
func nop() {}
var (
testHookContextDoneBeforeHeaders = nop
testHookDoReturned = nop
testHookDidBodyClose = nop
)
// Do sends an HTTP request with the provided http.Client and returns an HTTP response.
// If the client is nil, http.DefaultClient is used.
// If the context is canceled or times out, ctx.Err() will be returned.
@ -31,18 +39,51 @@ func Do(ctx context.Context, client *http.Client, req *http.Request) (*http.Resp
}
result := make(chan responseAndError, 1)
// Make local copies of test hooks closed over by goroutines below.
// Prevents data races in tests.
testHookDoReturned := testHookDoReturned
testHookDidBodyClose := testHookDidBodyClose
go func() {
resp, err := client.Do(req)
testHookDoReturned()
result <- responseAndError{resp, err}
}()
var resp *http.Response
select {
case <-ctx.Done():
testHookContextDoneBeforeHeaders()
cancel()
// Clean up after the goroutine calling client.Do:
go func() {
if r := <-result; r.resp != nil {
testHookDidBodyClose()
r.resp.Body.Close()
}
}()
return nil, ctx.Err()
case r := <-result:
return r.resp, r.err
var err error
resp, err = r.resp, r.err
if err != nil {
return resp, err
}
}
c := make(chan struct{})
go func() {
select {
case <-ctx.Done():
cancel()
case <-c:
// The response's Body is closed.
}
}()
resp.Body = &notifyingReader{resp.Body, c}
return resp, nil
}
// Get issues a GET request via the Do function.
@ -77,3 +118,28 @@ func Post(ctx context.Context, client *http.Client, url string, bodyType string,
func PostForm(ctx context.Context, client *http.Client, url string, data url.Values) (*http.Response, error) {
return Post(ctx, client, url, "application/x-www-form-urlencoded", strings.NewReader(data.Encode()))
}
// notifyingReader is an io.ReadCloser that closes the notify channel after
// Close is called or a Read fails on the underlying ReadCloser.
type notifyingReader struct {
io.ReadCloser
notify chan<- struct{}
}
func (r *notifyingReader) Read(p []byte) (int, error) {
n, err := r.ReadCloser.Read(p)
if err != nil && r.notify != nil {
close(r.notify)
r.notify = nil
}
return n, err
}
func (r *notifyingReader) Close() error {
err := r.ReadCloser.Close()
if r.notify != nil {
close(r.notify)
r.notify = nil
}
return err
}

15
vendor/src/golang.org/x/net/http2/Dockerfile vendored
View file

@ -17,8 +17,15 @@ RUN apt-get install -y --no-install-recommends \
libcunit1-dev libssl-dev libxml2-dev libevent-dev \
automake autoconf
# The list of packages nghttp2 recommends for h2load:
RUN apt-get install -y --no-install-recommends make binutils \
autoconf automake autotools-dev \
libtool pkg-config zlib1g-dev libcunit1-dev libssl-dev libxml2-dev \
libev-dev libevent-dev libjansson-dev libjemalloc-dev \
cython python3.4-dev python-setuptools
# Note: setting NGHTTP2_VER before the git clone, so an old git clone isn't cached:
ENV NGHTTP2_VER af24f8394e43f4
ENV NGHTTP2_VER 895da9a
RUN cd /root && git clone https://github.com/tatsuhiro-t/nghttp2.git
WORKDIR /root/nghttp2
@ -31,9 +38,9 @@ RUN make
RUN make install
WORKDIR /root
RUN wget http://curl.haxx.se/download/curl-7.40.0.tar.gz
RUN tar -zxvf curl-7.40.0.tar.gz
WORKDIR /root/curl-7.40.0
RUN wget http://curl.haxx.se/download/curl-7.45.0.tar.gz
RUN tar -zxvf curl-7.45.0.tar.gz
WORKDIR /root/curl-7.45.0
RUN ./configure --with-ssl --with-nghttp2=/usr/local
RUN make
RUN make install

76
vendor/src/golang.org/x/net/http2/buffer.go vendored
View file

@ -1,76 +0,0 @@
// Copyright 2014 The Go Authors.
// See https://code.google.com/p/go/source/browse/CONTRIBUTORS
// Licensed under the same terms as Go itself:
// https://code.google.com/p/go/source/browse/LICENSE
package http2
import (
"errors"
)
// buffer is an io.ReadWriteCloser backed by a fixed size buffer.
// It never allocates, but moves old data as new data is written.
type buffer struct {
buf []byte
r, w int
closed bool
err error // err to return to reader
}
var (
errReadEmpty = errors.New("read from empty buffer")
errWriteClosed = errors.New("write on closed buffer")
errWriteFull = errors.New("write on full buffer")
)
// Read copies bytes from the buffer into p.
// It is an error to read when no data is available.
func (b *buffer) Read(p []byte) (n int, err error) {
n = copy(p, b.buf[b.r:b.w])
b.r += n
if b.closed && b.r == b.w {
err = b.err
} else if b.r == b.w && n == 0 {
err = errReadEmpty
}
return n, err
}
// Len returns the number of bytes of the unread portion of the buffer.
func (b *buffer) Len() int {
return b.w - b.r
}
// Write copies bytes from p into the buffer.
// It is an error to write more data than the buffer can hold.
func (b *buffer) Write(p []byte) (n int, err error) {
if b.closed {
return 0, errWriteClosed
}
// Slide existing data to beginning.
if b.r > 0 && len(p) > len(b.buf)-b.w {
copy(b.buf, b.buf[b.r:b.w])
b.w -= b.r
b.r = 0
}
// Write new data.
n = copy(b.buf[b.w:], p)
b.w += n
if n < len(p) {
err = errWriteFull
}
return n, err
}
// Close marks the buffer as closed. Future calls to Write will
// return an error. Future calls to Read, once the buffer is
// empty, will return err.
func (b *buffer) Close(err error) {
if !b.closed {
b.closed = true
b.err = err
}
}

225
vendor/src/golang.org/x/net/http2/client_conn_pool.go vendored Normal file
View file

@ -0,0 +1,225 @@
// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Transport code's client connection pooling.
package http2
import (
"crypto/tls"
"net/http"
"sync"
)
// ClientConnPool manages a pool of HTTP/2 client connections.
type ClientConnPool interface {
GetClientConn(req *http.Request, addr string) (*ClientConn, error)
MarkDead(*ClientConn)
}
// TODO: use singleflight for dialing and addConnCalls?
type clientConnPool struct {
t *Transport
mu sync.Mutex // TODO: maybe switch to RWMutex
// TODO: add support for sharing conns based on cert names
// (e.g. share conn for googleapis.com and appspot.com)
conns map[string][]*ClientConn // key is host:port
dialing map[string]*dialCall // currently in-flight dials
keys map[*ClientConn][]string
addConnCalls map[string]*addConnCall // in-flight addConnIfNeede calls
}
func (p *clientConnPool) GetClientConn(req *http.Request, addr string) (*ClientConn, error) {
return p.getClientConn(req, addr, dialOnMiss)
}
const (
dialOnMiss = true
noDialOnMiss = false
)
func (p *clientConnPool) getClientConn(_ *http.Request, addr string, dialOnMiss bool) (*ClientConn, error) {
p.mu.Lock()
for _, cc := range p.conns[addr] {
if cc.CanTakeNewRequest() {
p.mu.Unlock()
return cc, nil
}
}
if !dialOnMiss {
p.mu.Unlock()
return nil, ErrNoCachedConn
}
call := p.getStartDialLocked(addr)
p.mu.Unlock()
<-call.done
return call.res, call.err
}
// dialCall is an in-flight Transport dial call to a host.
type dialCall struct {
p *clientConnPool
done chan struct{} // closed when done
res *ClientConn // valid after done is closed
err error // valid after done is closed
}
// requires p.mu is held.
func (p *clientConnPool) getStartDialLocked(addr string) *dialCall {
if call, ok := p.dialing[addr]; ok {
// A dial is already in-flight. Don't start another.
return call
}
call := &dialCall{p: p, done: make(chan struct{})}
if p.dialing == nil {
p.dialing = make(map[string]*dialCall)
}
p.dialing[addr] = call
go call.dial(addr)
return call
}
// run in its own goroutine.
func (c *dialCall) dial(addr string) {
c.res, c.err = c.p.t.dialClientConn(addr)
close(c.done)
c.p.mu.Lock()
delete(c.p.dialing, addr)
if c.err == nil {
c.p.addConnLocked(addr, c.res)
}
c.p.mu.Unlock()
}
// addConnIfNeeded makes a NewClientConn out of c if a connection for key doesn't
// already exist. It coalesces concurrent calls with the same key.
// This is used by the http1 Transport code when it creates a new connection. Because
// the http1 Transport doesn't de-dup TCP dials to outbound hosts (because it doesn't know
// the protocol), it can get into a situation where it has multiple TLS connections.
// This code decides which ones live or die.
// The return value used is whether c was used.
// c is never closed.
func (p *clientConnPool) addConnIfNeeded(key string, t *Transport, c *tls.Conn) (used bool, err error) {
p.mu.Lock()
for _, cc := range p.conns[key] {
if cc.CanTakeNewRequest() {
p.mu.Unlock()
return false, nil
}
}
call, dup := p.addConnCalls[key]
if !dup {
if p.addConnCalls == nil {
p.addConnCalls = make(map[string]*addConnCall)
}
call = &addConnCall{
p: p,
done: make(chan struct{}),
}
p.addConnCalls[key] = call
go call.run(t, key, c)
}
p.mu.Unlock()
<-call.done
if call.err != nil {
return false, call.err
}
return !dup, nil
}
type addConnCall struct {
p *clientConnPool
done chan struct{} // closed when done
err error
}
func (c *addConnCall) run(t *Transport, key string, tc *tls.Conn) {
cc, err := t.NewClientConn(tc)
p := c.p
p.mu.Lock()
if err != nil {
c.err = err
} else {
p.addConnLocked(key, cc)
}
delete(p.addConnCalls, key)
p.mu.Unlock()
close(c.done)
}
func (p *clientConnPool) addConn(key string, cc *ClientConn) {
p.mu.Lock()
p.addConnLocked(key, cc)
p.mu.Unlock()
}
// p.mu must be held
func (p *clientConnPool) addConnLocked(key string, cc *ClientConn) {
for _, v := range p.conns[key] {
if v == cc {
return
}
}
if p.conns == nil {
p.conns = make(map[string][]*ClientConn)
}
if p.keys == nil {
p.keys = make(map[*ClientConn][]string)
}
p.conns[key] = append(p.conns[key], cc)
p.keys[cc] = append(p.keys[cc], key)
}
func (p *clientConnPool) MarkDead(cc *ClientConn) {
p.mu.Lock()
defer p.mu.Unlock()
for _, key := range p.keys[cc] {
vv, ok := p.conns[key]
if !ok {
continue
}
newList := filterOutClientConn(vv, cc)
if len(newList) > 0 {
p.conns[key] = newList
} else {
delete(p.conns, key)
}
}
delete(p.keys, cc)
}
func (p *clientConnPool) closeIdleConnections() {
p.mu.Lock()
defer p.mu.Unlock()
// TODO: don't close a cc if it was just added to the pool
// milliseconds ago and has never been used. There's currently
// a small race window with the HTTP/1 Transport's integration
// where it can add an idle conn just before using it, and
// somebody else can concurrently call CloseIdleConns and
// break some caller's RoundTrip.
for _, vv := range p.conns {
for _, cc := range vv {
cc.closeIfIdle()
}
}
}
func filterOutClientConn(in []*ClientConn, exclude *ClientConn) []*ClientConn {
out := in[:0]
for _, v := range in {
if v != exclude {
out = append(out, v)
}
}
// If we filtered it out, zero out the last item to prevent
// the GC from seeing it.
if len(in) != len(out) {
in[len(in)-1] = nil
}
return out
}

89
vendor/src/golang.org/x/net/http2/configure_transport.go vendored Normal file
View file

@ -0,0 +1,89 @@
// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build go1.6
package http2
import (
"crypto/tls"
"fmt"
"net/http"
)
func configureTransport(t1 *http.Transport) (*Transport, error) {
connPool := new(clientConnPool)
t2 := &Transport{
ConnPool: noDialClientConnPool{connPool},
t1: t1,
}
connPool.t = t2
if err := registerHTTPSProtocol(t1, noDialH2RoundTripper{t2}); err != nil {
return nil, err
}
if t1.TLSClientConfig == nil {
t1.TLSClientConfig = new(tls.Config)
}
if !strSliceContains(t1.TLSClientConfig.NextProtos, "h2") {
t1.TLSClientConfig.NextProtos = append([]string{"h2"}, t1.TLSClientConfig.NextProtos...)
}
if !strSliceContains(t1.TLSClientConfig.NextProtos, "http/1.1") {
t1.TLSClientConfig.NextProtos = append(t1.TLSClientConfig.NextProtos, "http/1.1")
}
upgradeFn := func(authority string, c *tls.Conn) http.RoundTripper {
addr := authorityAddr(authority)
if used, err := connPool.addConnIfNeeded(addr, t2, c); err != nil {
go c.Close()
return erringRoundTripper{err}
} else if !used {
// Turns out we don't need this c.
// For example, two goroutines made requests to the same host
// at the same time, both kicking off TCP dials. (since protocol
// was unknown)
go c.Close()
}
return t2
}
if m := t1.TLSNextProto; len(m) == 0 {
t1.TLSNextProto = map[string]func(string, *tls.Conn) http.RoundTripper{
"h2": upgradeFn,
}
} else {
m["h2"] = upgradeFn
}
return t2, nil
}
// registerHTTPSProtocol calls Transport.RegisterProtocol but
// convering panics into errors.
func registerHTTPSProtocol(t *http.Transport, rt http.RoundTripper) (err error) {
defer func() {
if e := recover(); e != nil {
err = fmt.Errorf("%v", e)
}
}()
t.RegisterProtocol("https", rt)
return nil
}
// noDialClientConnPool is an implementation of http2.ClientConnPool
// which never dials. We let the HTTP/1.1 client dial and use its TLS
// connection instead.
type noDialClientConnPool struct{ *clientConnPool }
func (p noDialClientConnPool) GetClientConn(req *http.Request, addr string) (*ClientConn, error) {
return p.getClientConn(req, addr, noDialOnMiss)
}
// noDialH2RoundTripper is a RoundTripper which only tries to complete the request
// if there's already has a cached connection to the host.
type noDialH2RoundTripper struct{ t *Transport }
func (rt noDialH2RoundTripper) RoundTrip(req *http.Request) (*http.Response, error) {
res, err := rt.t.RoundTrip(req)
if err == ErrNoCachedConn {
return nil, http.ErrSkipAltProtocol
}
return res, err
}

54
vendor/src/golang.org/x/net/http2/errors.go vendored
View file

@ -1,11 +1,13 @@
// Copyright 2014 The Go Authors.
// See https://code.google.com/p/go/source/browse/CONTRIBUTORS
// Licensed under the same terms as Go itself:
// https://code.google.com/p/go/source/browse/LICENSE
// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package http2
import "fmt"
import (
"errors"
"fmt"
)
// An ErrCode is an unsigned 32-bit error code as defined in the HTTP/2 spec.
type ErrCode uint32
@ -76,3 +78,45 @@ func (e StreamError) Error() string {
type goAwayFlowError struct{}
func (goAwayFlowError) Error() string { return "connection exceeded flow control window size" }
// connErrorReason wraps a ConnectionError with an informative error about why it occurs.
// Errors of this type are only returned by the frame parser functions
// and converted into ConnectionError(ErrCodeProtocol).
type connError struct {
Code ErrCode
Reason string
}
func (e connError) Error() string {
return fmt.Sprintf("http2: connection error: %v: %v", e.Code, e.Reason)
}
type pseudoHeaderError string
func (e pseudoHeaderError) Error() string {
return fmt.Sprintf("invalid pseudo-header %q", string(e))
}
type duplicatePseudoHeaderError string
func (e duplicatePseudoHeaderError) Error() string {
return fmt.Sprintf("duplicate pseudo-header %q", string(e))
}
type headerFieldNameError string
func (e headerFieldNameError) Error() string {
return fmt.Sprintf("invalid header field name %q", string(e))
}
type headerFieldValueError string
func (e headerFieldValueError) Error() string {
return fmt.Sprintf("invalid header field value %q", string(e))
}
var (
errMixPseudoHeaderTypes = errors.New("mix of request and response pseudo headers")
errPseudoAfterRegular = errors.New("pseudo header field after regular")
)

60
vendor/src/golang.org/x/net/http2/fixed_buffer.go vendored Normal file
View file

@ -0,0 +1,60 @@
// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package http2
import (
"errors"
)
// fixedBuffer is an io.ReadWriter backed by a fixed size buffer.
// It never allocates, but moves old data as new data is written.
type fixedBuffer struct {
buf []byte
r, w int
}
var (
errReadEmpty = errors.New("read from empty fixedBuffer")
errWriteFull = errors.New("write on full fixedBuffer")
)
// Read copies bytes from the buffer into p.
// It is an error to read when no data is available.
func (b *fixedBuffer) Read(p []byte) (n int, err error) {
if b.r == b.w {
return 0, errReadEmpty
}
n = copy(p, b.buf[b.r:b.w])
b.r += n
if b.r == b.w {
b.r = 0
b.w = 0
}
return n, nil
}
// Len returns the number of bytes of the unread portion of the buffer.
func (b *fixedBuffer) Len() int {
return b.w - b.r
}
// Write copies bytes from p into the buffer.
// It is an error to write more data than the buffer can hold.
func (b *fixedBuffer) Write(p []byte) (n int, err error) {
// Slide existing data to beginning.
if b.r > 0 && len(p) > len(b.buf)-b.w {
copy(b.buf, b.buf[b.r:b.w])
b.w -= b.r
b.r = 0
}
// Write new data.
n = copy(b.buf[b.w:], p)
b.w += n
if n < len(p) {
err = errWriteFull
}
return n, err
}

7
vendor/src/golang.org/x/net/http2/flow.go vendored
View file

@ -1,7 +1,6 @@
// Copyright 2014 The Go Authors.
// See https://code.google.com/p/go/source/browse/CONTRIBUTORS
// Licensed under the same terms as Go itself:
// https://code.google.com/p/go/source/browse/LICENSE
// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Flow control

431
vendor/src/golang.org/x/net/http2/frame.go vendored
View file

@ -1,7 +1,6 @@
// Copyright 2014 The Go Authors.
// See https://code.google.com/p/go/source/browse/CONTRIBUTORS
// Licensed under the same terms as Go itself:
// https://code.google.com/p/go/source/browse/LICENSE
// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package http2
@ -11,7 +10,11 @@ import (
"errors"
"fmt"
"io"
"log"
"strings"
"sync"
"golang.org/x/net/http2/hpack"
)
const frameHeaderLen = 9
@ -172,6 +175,12 @@ func (h FrameHeader) Header() FrameHeader { return h }
func (h FrameHeader) String() string {
var buf bytes.Buffer
buf.WriteString("[FrameHeader ")
h.writeDebug(&buf)
buf.WriteByte(']')
return buf.String()
}
func (h FrameHeader) writeDebug(buf *bytes.Buffer) {
buf.WriteString(h.Type.String())
if h.Flags != 0 {
buf.WriteString(" flags=")
@ -188,15 +197,14 @@ func (h FrameHeader) String() string {
if name != "" {
buf.WriteString(name)
} else {
fmt.Fprintf(&buf, "0x%x", 1<<i)
fmt.Fprintf(buf, "0x%x", 1<<i)
}
}
}
if h.StreamID != 0 {
fmt.Fprintf(&buf, " stream=%d", h.StreamID)
fmt.Fprintf(buf, " stream=%d", h.StreamID)
}
fmt.Fprintf(&buf, " len=%d]", h.Length)
return buf.String()
fmt.Fprintf(buf, " len=%d", h.Length)
}
func (h *FrameHeader) checkValid() {
@ -256,6 +264,11 @@ type Frame interface {
type Framer struct {
r io.Reader
lastFrame Frame
errDetail error
// lastHeaderStream is non-zero if the last frame was an
// unfinished HEADERS/CONTINUATION.
lastHeaderStream uint32
maxReadSize uint32
headerBuf [frameHeaderLen]byte
@ -272,18 +285,48 @@ type Framer struct {
wbuf []byte
// AllowIllegalWrites permits the Framer's Write methods to
// write frames that do not conform to the HTTP/2 spec. This
// write frames that do not conform to the HTTP/2 spec. This
// permits using the Framer to test other HTTP/2
// implementations' conformance to the spec.
// If false, the Write methods will prefer to return an error
// rather than comply.
AllowIllegalWrites bool
// AllowIllegalReads permits the Framer's ReadFrame method
// to return non-compliant frames or frame orders.
// This is for testing and permits using the Framer to test
// other HTTP/2 implementations' conformance to the spec.
// It is not compatible with ReadMetaHeaders.
AllowIllegalReads bool
// ReadMetaHeaders if non-nil causes ReadFrame to merge
// HEADERS and CONTINUATION frames together and return
// MetaHeadersFrame instead.
ReadMetaHeaders *hpack.Decoder
// MaxHeaderListSize is the http2 MAX_HEADER_LIST_SIZE.
// It's used only if ReadMetaHeaders is set; 0 means a sane default
// (currently 16MB)
// If the limit is hit, MetaHeadersFrame.Truncated is set true.
MaxHeaderListSize uint32
// TODO: track which type of frame & with which flags was sent
// last. Then return an error (unless AllowIllegalWrites) if
// we're in the middle of a header block and a
// non-Continuation or Continuation on a different stream is
// attempted to be written.
logReads bool
debugFramer *Framer // only use for logging written writes
debugFramerBuf *bytes.Buffer
}
func (fr *Framer) maxHeaderListSize() uint32 {
if fr.MaxHeaderListSize == 0 {
return 16 << 20 // sane default, per docs
}
return fr.MaxHeaderListSize
}
func (f *Framer) startWrite(ftype FrameType, flags Flags, streamID uint32) {
@ -311,6 +354,10 @@ func (f *Framer) endWrite() error {
byte(length>>16),
byte(length>>8),
byte(length))
if logFrameWrites {
f.logWrite()
}
n, err := f.w.Write(f.wbuf)
if err == nil && n != len(f.wbuf) {
err = io.ErrShortWrite
@ -318,6 +365,24 @@ func (f *Framer) endWrite() error {
return err
}
func (f *Framer) logWrite() {
if f.debugFramer == nil {
f.debugFramerBuf = new(bytes.Buffer)
f.debugFramer = NewFramer(nil, f.debugFramerBuf)
f.debugFramer.logReads = false // we log it ourselves, saying "wrote" below
// Let us read anything, even if we accidentally wrote it
// in the wrong order:
f.debugFramer.AllowIllegalReads = true
}
f.debugFramerBuf.Write(f.wbuf)
fr, err := f.debugFramer.ReadFrame()
if err != nil {
log.Printf("http2: Framer %p: failed to decode just-written frame", f)
return
}
log.Printf("http2: Framer %p: wrote %v", f, summarizeFrame(fr))
}
func (f *Framer) writeByte(v byte) { f.wbuf = append(f.wbuf, v) }
func (f *Framer) writeBytes(v []byte) { f.wbuf = append(f.wbuf, v...) }
func (f *Framer) writeUint16(v uint16) { f.wbuf = append(f.wbuf, byte(v>>8), byte(v)) }
@ -333,8 +398,9 @@ const (
// NewFramer returns a Framer that writes frames to w and reads them from r.
func NewFramer(w io.Writer, r io.Reader) *Framer {
fr := &Framer{
w: w,
r: r,
w: w,
r: r,
logReads: logFrameReads,
}
fr.getReadBuf = func(size uint32) []byte {
if cap(fr.readBuf) >= int(size) {
@ -358,15 +424,39 @@ func (fr *Framer) SetMaxReadFrameSize(v uint32) {
fr.maxReadSize = v
}
// ErrorDetail returns a more detailed error of the last error
// returned by Framer.ReadFrame. For instance, if ReadFrame
// returns a StreamError with code PROTOCOL_ERROR, ErrorDetail
// will say exactly what was invalid. ErrorDetail is not guaranteed
// to return a non-nil value and like the rest of the http2 package,
// its return value is not protected by an API compatibility promise.
// ErrorDetail is reset after the next call to ReadFrame.
func (fr *Framer) ErrorDetail() error {
return fr.errDetail
}
// ErrFrameTooLarge is returned from Framer.ReadFrame when the peer
// sends a frame that is larger than declared with SetMaxReadFrameSize.
var ErrFrameTooLarge = errors.New("http2: frame too large")
// terminalReadFrameError reports whether err is an unrecoverable
// error from ReadFrame and no other frames should be read.
func terminalReadFrameError(err error) bool {
if _, ok := err.(StreamError); ok {
return false
}
return err != nil
}
// ReadFrame reads a single frame. The returned Frame is only valid
// until the next call to ReadFrame.
// If the frame is larger than previously set with SetMaxReadFrameSize,
// the returned error is ErrFrameTooLarge.
//
// If the frame is larger than previously set with SetMaxReadFrameSize, the
// returned error is ErrFrameTooLarge. Other errors may be of type
// ConnectionError, StreamError, or anything else from from the underlying
// reader.
func (fr *Framer) ReadFrame() (Frame, error) {
fr.errDetail = nil
if fr.lastFrame != nil {
fr.lastFrame.invalidate()
}
@ -383,12 +473,71 @@ func (fr *Framer) ReadFrame() (Frame, error) {
}
f, err := typeFrameParser(fh.Type)(fh, payload)
if err != nil {
if ce, ok := err.(connError); ok {
return nil, fr.connError(ce.Code, ce.Reason)
}
return nil, err
}
fr.lastFrame = f
if err := fr.checkFrameOrder(f); err != nil {
return nil, err
}
if fr.logReads {
log.Printf("http2: Framer %p: read %v", fr, summarizeFrame(f))
}
if fh.Type == FrameHeaders && fr.ReadMetaHeaders != nil {
return fr.readMetaFrame(f.(*HeadersFrame))
}
return f, nil
}
// connError returns ConnectionError(code) but first
// stashes away a public reason to the caller can optionally relay it
// to the peer before hanging up on them. This might help others debug
// their implementations.
func (fr *Framer) connError(code ErrCode, reason string) error {
fr.errDetail = errors.New(reason)
return ConnectionError(code)
}
// checkFrameOrder reports an error if f is an invalid frame to return
// next from ReadFrame. Mostly it checks whether HEADERS and
// CONTINUATION frames are contiguous.
func (fr *Framer) checkFrameOrder(f Frame) error {
last := fr.lastFrame
fr.lastFrame = f
if fr.AllowIllegalReads {
return nil
}
fh := f.Header()
if fr.lastHeaderStream != 0 {
if fh.Type != FrameContinuation {
return fr.connError(ErrCodeProtocol,
fmt.Sprintf("got %s for stream %d; expected CONTINUATION following %s for stream %d",
fh.Type, fh.StreamID,
last.Header().Type, fr.lastHeaderStream))
}
if fh.StreamID != fr.lastHeaderStream {
return fr.connError(ErrCodeProtocol,
fmt.Sprintf("got CONTINUATION for stream %d; expected stream %d",
fh.StreamID, fr.lastHeaderStream))
}
} else if fh.Type == FrameContinuation {
return fr.connError(ErrCodeProtocol, fmt.Sprintf("unexpected CONTINUATION for stream %d", fh.StreamID))
}
switch fh.Type {
case FrameHeaders, FrameContinuation:
if fh.Flags.Has(FlagHeadersEndHeaders) {
fr.lastHeaderStream = 0
} else {
fr.lastHeaderStream = fh.StreamID
}
}
return nil
}
// A DataFrame conveys arbitrary, variable-length sequences of octets
// associated with a stream.
// See http://http2.github.io/http2-spec/#rfc.section.6.1
@ -417,7 +566,7 @@ func parseDataFrame(fh FrameHeader, payload []byte) (Frame, error) {
// field is 0x0, the recipient MUST respond with a
// connection error (Section 5.4.1) of type
// PROTOCOL_ERROR.
return nil, ConnectionError(ErrCodeProtocol)
return nil, connError{ErrCodeProtocol, "DATA frame with stream ID 0"}
}
f := &DataFrame{
FrameHeader: fh,
@ -435,7 +584,7 @@ func parseDataFrame(fh FrameHeader, payload []byte) (Frame, error) {
// length of the frame payload, the recipient MUST
// treat this as a connection error.
// Filed: https://github.com/http2/http2-spec/issues/610
return nil, ConnectionError(ErrCodeProtocol)
return nil, connError{ErrCodeProtocol, "pad size larger than data payload"}
}
f.data = payload[:len(payload)-int(padSize)]
return f, nil
@ -575,6 +724,8 @@ type PingFrame struct {
Data [8]byte
}
func (f *PingFrame) IsAck() bool { return f.Flags.Has(FlagPingAck) }
func parsePingFrame(fh FrameHeader, payload []byte) (Frame, error) {
if len(payload) != 8 {
return nil, ConnectionError(ErrCodeFrameSize)
@ -663,7 +814,7 @@ func parseUnknownFrame(fh FrameHeader, p []byte) (Frame, error) {
// See http://http2.github.io/http2-spec/#rfc.section.6.9
type WindowUpdateFrame struct {
FrameHeader
Increment uint32
Increment uint32 // never read with high bit set
}
func parseWindowUpdateFrame(fh FrameHeader, p []byte) (Frame, error) {
@ -740,7 +891,7 @@ func parseHeadersFrame(fh FrameHeader, p []byte) (_ Frame, err error) {
// is received whose stream identifier field is 0x0, the recipient MUST
// respond with a connection error (Section 5.4.1) of type
// PROTOCOL_ERROR.
return nil, ConnectionError(ErrCodeProtocol)
return nil, connError{ErrCodeProtocol, "HEADERS frame with stream ID 0"}
}
var padLength uint8
if fh.Flags.Has(FlagHeadersPadded) {
@ -870,10 +1021,10 @@ func (p PriorityParam) IsZero() bool {
func parsePriorityFrame(fh FrameHeader, payload []byte) (Frame, error) {
if fh.StreamID == 0 {
return nil, ConnectionError(ErrCodeProtocol)
return nil, connError{ErrCodeProtocol, "PRIORITY frame with stream ID 0"}
}
if len(payload) != 5 {
return nil, ConnectionError(ErrCodeFrameSize)
return nil, connError{ErrCodeFrameSize, fmt.Sprintf("PRIORITY frame payload size was %d; want 5", len(payload))}
}
v := binary.BigEndian.Uint32(payload[:4])
streamID := v & 0x7fffffff // mask off high bit
@ -943,13 +1094,12 @@ type ContinuationFrame struct {
}
func parseContinuationFrame(fh FrameHeader, p []byte) (Frame, error) {
if fh.StreamID == 0 {
return nil, connError{ErrCodeProtocol, "CONTINUATION frame with stream ID 0"}
}
return &ContinuationFrame{fh, p}, nil
}
func (f *ContinuationFrame) StreamEnded() bool {
return f.FrameHeader.Flags.Has(FlagDataEndStream)
}
func (f *ContinuationFrame) HeaderBlockFragment() []byte {
f.checkValid()
return f.headerFragBuf
@ -1111,3 +1261,236 @@ type streamEnder interface {
type headersEnder interface {
HeadersEnded() bool
}
type headersOrContinuation interface {
headersEnder
HeaderBlockFragment() []byte
}
// A MetaHeadersFrame is the representation of one HEADERS frame and
// zero or more contiguous CONTINUATION frames and the decoding of
// their HPACK-encoded contents.
//
// This type of frame does not appear on the wire and is only returned
// by the Framer when Framer.ReadMetaHeaders is set.
type MetaHeadersFrame struct {
*HeadersFrame
// Fields are the fields contained in the HEADERS and
// CONTINUATION frames. The underlying slice is owned by the
// Framer and must not be retained after the next call to
// ReadFrame.
//
// Fields are guaranteed to be in the correct http2 order and
// not have unknown pseudo header fields or invalid header
// field names or values. Required pseudo header fields may be
// missing, however. Use the MetaHeadersFrame.Pseudo accessor
// method access pseudo headers.
Fields []hpack.HeaderField
// Truncated is whether the max header list size limit was hit
// and Fields is incomplete. The hpack decoder state is still
// valid, however.
Truncated bool
}
// PseudoValue returns the given pseudo header field's value.
// The provided pseudo field should not contain the leading colon.
func (mh *MetaHeadersFrame) PseudoValue(pseudo string) string {
for _, hf := range mh.Fields {
if !hf.IsPseudo() {
return ""
}
if hf.Name[1:] == pseudo {
return hf.Value
}
}
return ""
}
// RegularFields returns the regular (non-pseudo) header fields of mh.
// The caller does not own the returned slice.
func (mh *MetaHeadersFrame) RegularFields() []hpack.HeaderField {
for i, hf := range mh.Fields {
if !hf.IsPseudo() {
return mh.Fields[i:]
}
}
return nil
}
// PseudoFields returns the pseudo header fields of mh.
// The caller does not own the returned slice.
func (mh *MetaHeadersFrame) PseudoFields() []hpack.HeaderField {
for i, hf := range mh.Fields {
if !hf.IsPseudo() {
return mh.Fields[:i]
}
}
return mh.Fields
}
func (mh *MetaHeadersFrame) checkPseudos() error {
var isRequest, isResponse bool
pf := mh.PseudoFields()
for i, hf := range pf {
switch hf.Name {
case ":method", ":path", ":scheme", ":authority":
isRequest = true
case ":status":
isResponse = true
default:
return pseudoHeaderError(hf.Name)
}
// Check for duplicates.
// This would be a bad algorithm, but N is 4.
// And this doesn't allocate.
for _, hf2 := range pf[:i] {
if hf.Name == hf2.Name {
return duplicatePseudoHeaderError(hf.Name)
}
}
}
if isRequest && isResponse {
return errMixPseudoHeaderTypes
}
return nil
}
func (fr *Framer) maxHeaderStringLen() int {
v := fr.maxHeaderListSize()
if uint32(int(v)) == v {
return int(v)
}
// They had a crazy big number for MaxHeaderBytes anyway,
// so give them unlimited header lengths:
return 0
}
// readMetaFrame returns 0 or more CONTINUATION frames from fr and
// merge them into into the provided hf and returns a MetaHeadersFrame
// with the decoded hpack values.
func (fr *Framer) readMetaFrame(hf *HeadersFrame) (*MetaHeadersFrame, error) {
if fr.AllowIllegalReads {
return nil, errors.New("illegal use of AllowIllegalReads with ReadMetaHeaders")
}
mh := &MetaHeadersFrame{
HeadersFrame: hf,
}
var remainSize = fr.maxHeaderListSize()
var sawRegular bool
var invalid error // pseudo header field errors
hdec := fr.ReadMetaHeaders
hdec.SetEmitEnabled(true)
hdec.SetMaxStringLength(fr.maxHeaderStringLen())
hdec.SetEmitFunc(func(hf hpack.HeaderField) {
if !validHeaderFieldValue(hf.Value) {
invalid = headerFieldValueError(hf.Value)
}
isPseudo := strings.HasPrefix(hf.Name, ":")
if isPseudo {
if sawRegular {
invalid = errPseudoAfterRegular
}
} else {
sawRegular = true
if !validHeaderFieldName(hf.Name) {
invalid = headerFieldNameError(hf.Name)
}
}
if invalid != nil {
hdec.SetEmitEnabled(false)
return
}
size := hf.Size()
if size > remainSize {
hdec.SetEmitEnabled(false)
mh.Truncated = true
return
}
remainSize -= size
mh.Fields = append(mh.Fields, hf)
})
// Lose reference to MetaHeadersFrame:
defer hdec.SetEmitFunc(func(hf hpack.HeaderField) {})
var hc headersOrContinuation = hf
for {
frag := hc.HeaderBlockFragment()
if _, err := hdec.Write(frag); err != nil {
return nil, ConnectionError(ErrCodeCompression)
}
if hc.HeadersEnded() {
break
}
if f, err := fr.ReadFrame(); err != nil {
return nil, err
} else {
hc = f.(*ContinuationFrame) // guaranteed by checkFrameOrder
}
}
mh.HeadersFrame.headerFragBuf = nil
mh.HeadersFrame.invalidate()
if err := hdec.Close(); err != nil {
return nil, ConnectionError(ErrCodeCompression)
}
if invalid != nil {
fr.errDetail = invalid
return nil, StreamError{mh.StreamID, ErrCodeProtocol}
}
if err := mh.checkPseudos(); err != nil {
fr.errDetail = err
return nil, StreamError{mh.StreamID, ErrCodeProtocol}
}
return mh, nil
}
func summarizeFrame(f Frame) string {
var buf bytes.Buffer
f.Header().writeDebug(&buf)
switch f := f.(type) {
case *SettingsFrame:
n := 0
f.ForeachSetting(func(s Setting) error {
n++
if n == 1 {
buf.WriteString(", settings:")
}
fmt.Fprintf(&buf, " %v=%v,", s.ID, s.Val)
return nil
})
if n > 0 {
buf.Truncate(buf.Len() - 1) // remove trailing comma
}
case *DataFrame:
data := f.Data()
const max = 256
if len(data) > max {
data = data[:max]
}
fmt.Fprintf(&buf, " data=%q", data)
if len(f.Data()) > max {
fmt.Fprintf(&buf, " (%d bytes omitted)", len(f.Data())-max)
}
case *WindowUpdateFrame:
if f.StreamID == 0 {
buf.WriteString(" (conn)")
}
fmt.Fprintf(&buf, " incr=%v", f.Increment)
case *PingFrame:
fmt.Fprintf(&buf, " ping=%q", f.Data[:])
case *GoAwayFrame:
fmt.Fprintf(&buf, " LastStreamID=%v ErrCode=%v Debug=%q",
f.LastStreamID, f.ErrCode, f.debugData)
case *RSTStreamFrame:
fmt.Fprintf(&buf, " ErrCode=%v", f.ErrCode)
}
return buf.String()
}

11
vendor/src/golang.org/x/net/http2/go15.go vendored Normal file
View file

@ -0,0 +1,11 @@
// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build go1.5
package http2
import "net/http"
func requestCancel(req *http.Request) <-chan struct{} { return req.Cancel }

3
vendor/src/golang.org/x/net/http2/gotrack.go vendored
View file

@ -1,9 +1,6 @@
// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// See https://code.google.com/p/go/source/browse/CONTRIBUTORS
// Licensed under the same terms as Go itself:
// https://code.google.com/p/go/source/browse/LICENSE
// Defensive debug-only utility to track that functions run on the
// goroutine that they're supposed to.

4
vendor/src/golang.org/x/net/http2/headermap.go vendored
View file

@ -1,9 +1,6 @@
// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// See https://code.google.com/p/go/source/browse/CONTRIBUTORS
// Licensed under the same terms as Go itself:
// https://code.google.com/p/go/source/browse/LICENSE
package http2
@ -60,6 +57,7 @@ func init() {
"server",
"set-cookie",
"strict-transport-security",
"trailer",
"transfer-encoding",
"user-agent",
"vary",

9
vendor/src/golang.org/x/net/http2/hpack/encode.go vendored
View file

@ -1,7 +1,6 @@
// Copyright 2014 The Go Authors.
// See https://code.google.com/p/go/source/browse/CONTRIBUTORS
// Licensed under the same terms as Go itself:
// https://code.google.com/p/go/source/browse/LICENSE
// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package hpack
@ -145,7 +144,7 @@ func (e *Encoder) SetMaxDynamicTableSizeLimit(v uint32) {
// shouldIndex reports whether f should be indexed.
func (e *Encoder) shouldIndex(f HeaderField) bool {
return !f.Sensitive && f.size() <= e.dynTab.maxSize
return !f.Sensitive && f.Size() <= e.dynTab.maxSize
}
// appendIndexed appends index i, as encoded in "Indexed Header Field"

155
vendor/src/golang.org/x/net/http2/hpack/hpack.go vendored
View file

@ -1,7 +1,6 @@
// Copyright 2014 The Go Authors.
// See https://code.google.com/p/go/source/browse/CONTRIBUTORS
// Licensed under the same terms as Go itself:
// https://code.google.com/p/go/source/browse/LICENSE
// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package hpack implements HPACK, a compression format for
// efficiently representing HTTP header fields in the context of HTTP/2.
@ -42,7 +41,24 @@ type HeaderField struct {
Sensitive bool
}
func (hf *HeaderField) size() uint32 {
// IsPseudo reports whether the header field is an http2 pseudo header.
// That is, it reports whether it starts with a colon.
// It is not otherwise guaranteed to be a valid psuedo header field,
// though.
func (hf HeaderField) IsPseudo() bool {
return len(hf.Name) != 0 && hf.Name[0] == ':'
}
func (hf HeaderField) String() string {
var suffix string
if hf.Sensitive {
suffix = " (sensitive)"
}
return fmt.Sprintf("header field %q = %q%s", hf.Name, hf.Value, suffix)
}
// Size returns the size of an entry per RFC 7540 section 5.2.
func (hf HeaderField) Size() uint32 {
// http://http2.github.io/http2-spec/compression.html#rfc.section.4.1
// "The size of the dynamic table is the sum of the size of
// its entries. The size of an entry is the sum of its name's
@ -64,23 +80,65 @@ type Decoder struct {
dynTab dynamicTable
emit func(f HeaderField)
emitEnabled bool // whether calls to emit are enabled
maxStrLen int // 0 means unlimited
// buf is the unparsed buffer. It's only written to
// saveBuf if it was truncated in the middle of a header
// block. Because it's usually not owned, we can only
// process it under Write.
buf []byte // usually not owned
buf []byte // not owned; only valid during Write
// saveBuf is previous data passed to Write which we weren't able
// to fully parse before. Unlike buf, we own this data.
saveBuf bytes.Buffer
}
func NewDecoder(maxSize uint32, emitFunc func(f HeaderField)) *Decoder {
// NewDecoder returns a new decoder with the provided maximum dynamic
// table size. The emitFunc will be called for each valid field
// parsed, in the same goroutine as calls to Write, before Write returns.
func NewDecoder(maxDynamicTableSize uint32, emitFunc func(f HeaderField)) *Decoder {
d := &Decoder{
emit: emitFunc,
emit: emitFunc,
emitEnabled: true,
}
d.dynTab.allowedMaxSize = maxSize
d.dynTab.setMaxSize(maxSize)
d.dynTab.allowedMaxSize = maxDynamicTableSize
d.dynTab.setMaxSize(maxDynamicTableSize)
return d
}
// ErrStringLength is returned by Decoder.Write when the max string length
// (as configured by Decoder.SetMaxStringLength) would be violated.
var ErrStringLength = errors.New("hpack: string too long")
// SetMaxStringLength sets the maximum size of a HeaderField name or
// value string. If a string exceeds this length (even after any
// decompression), Write will return ErrStringLength.
// A value of 0 means unlimited and is the default from NewDecoder.
func (d *Decoder) SetMaxStringLength(n int) {
d.maxStrLen = n
}
// SetEmitFunc changes the callback used when new header fields
// are decoded.
// It must be non-nil. It does not affect EmitEnabled.
func (d *Decoder) SetEmitFunc(emitFunc func(f HeaderField)) {
d.emit = emitFunc
}
// SetEmitEnabled controls whether the emitFunc provided to NewDecoder
// should be called. The default is true.
//
// This facility exists to let servers enforce MAX_HEADER_LIST_SIZE
// while still decoding and keeping in-sync with decoder state, but
// without doing unnecessary decompression or generating unnecessary
// garbage for header fields past the limit.
func (d *Decoder) SetEmitEnabled(v bool) { d.emitEnabled = v }
// EmitEnabled reports whether calls to the emitFunc provided to NewDecoder
// are currently enabled. The default is true.
func (d *Decoder) EmitEnabled() bool { return d.emitEnabled }
// TODO: add method *Decoder.Reset(maxSize, emitFunc) to let callers re-use Decoders and their
// underlying buffers for garbage reasons.
@ -122,7 +180,7 @@ func (dt *dynamicTable) setMaxSize(v uint32) {
func (dt *dynamicTable) add(f HeaderField) {
dt.ents = append(dt.ents, f)
dt.size += f.size()
dt.size += f.Size()
dt.evict()
}
@ -130,7 +188,7 @@ func (dt *dynamicTable) add(f HeaderField) {
func (dt *dynamicTable) evict() {
base := dt.ents // keep base pointer of slice
for dt.size > dt.maxSize {
dt.size -= dt.ents[0].size()
dt.size -= dt.ents[0].Size()
dt.ents = dt.ents[1:]
}
@ -247,15 +305,23 @@ func (d *Decoder) Write(p []byte) (n int, err error) {
for len(d.buf) > 0 {
err = d.parseHeaderFieldRepr()
if err != nil {
if err == errNeedMore {
err = nil
d.saveBuf.Write(d.buf)
if err == errNeedMore {
// Extra paranoia, making sure saveBuf won't
// get too large. All the varint and string
// reading code earlier should already catch
// overlong things and return ErrStringLength,
// but keep this as a last resort.
const varIntOverhead = 8 // conservative
if d.maxStrLen != 0 && int64(len(d.buf)) > 2*(int64(d.maxStrLen)+varIntOverhead) {
return 0, ErrStringLength
}
d.saveBuf.Write(d.buf)
return len(p), nil
}
if err != nil {
break
}
}
return len(p), err
}
@ -323,9 +389,8 @@ func (d *Decoder) parseFieldIndexed() error {
if !ok {
return DecodingError{InvalidIndexError(idx)}
}
d.emit(HeaderField{Name: hf.Name, Value: hf.Value})
d.buf = buf
return nil
return d.callEmit(HeaderField{Name: hf.Name, Value: hf.Value})
}
// (same invariants and behavior as parseHeaderFieldRepr)
@ -337,6 +402,7 @@ func (d *Decoder) parseFieldLiteral(n uint8, it indexType) error {
}
var hf HeaderField
wantStr := d.emitEnabled || it.indexed()
if nameIdx > 0 {
ihf, ok := d.at(nameIdx)
if !ok {
@ -344,12 +410,12 @@ func (d *Decoder) parseFieldLiteral(n uint8, it indexType) error {
}
hf.Name = ihf.Name
} else {
hf.Name, buf, err = readString(buf)
hf.Name, buf, err = d.readString(buf, wantStr)
if err != nil {
return err
}
}
hf.Value, buf, err = readString(buf)
hf.Value, buf, err = d.readString(buf, wantStr)
if err != nil {
return err
}
@ -358,7 +424,18 @@ func (d *Decoder) parseFieldLiteral(n uint8, it indexType) error {
d.dynTab.add(hf)
}
hf.Sensitive = it.sensitive()
d.emit(hf)
return d.callEmit(hf)
}
func (d *Decoder) callEmit(hf HeaderField) error {
if d.maxStrLen != 0 {
if len(hf.Name) > d.maxStrLen || len(hf.Value) > d.maxStrLen {
return ErrStringLength
}
}
if d.emitEnabled {
d.emit(hf)
}
return nil
}
@ -420,7 +497,15 @@ func readVarInt(n byte, p []byte) (i uint64, remain []byte, err error) {
return 0, origP, errNeedMore
}
func readString(p []byte) (s string, remain []byte, err error) {
// readString decodes an hpack string from p.
//
// wantStr is whether s will be used. If false, decompression and
// []byte->string garbage are skipped if s will be ignored
// anyway. This does mean that huffman decoding errors for non-indexed
// strings past the MAX_HEADER_LIST_SIZE are ignored, but the server
// is returning an error anyway, and because they're not indexed, the error
// won't affect the decoding state.
func (d *Decoder) readString(p []byte, wantStr bool) (s string, remain []byte, err error) {
if len(p) == 0 {
return "", p, errNeedMore
}
@ -429,17 +514,29 @@ func readString(p []byte) (s string, remain []byte, err error) {
if err != nil {
return "", p, err
}
if d.maxStrLen != 0 && strLen > uint64(d.maxStrLen) {
return "", nil, ErrStringLength
}
if uint64(len(p)) < strLen {
return "", p, errNeedMore
}
if !isHuff {
return string(p[:strLen]), p[strLen:], nil
if wantStr {
s = string(p[:strLen])
}
return s, p[strLen:], nil
}
// TODO: optimize this garbage:
var buf bytes.Buffer
if _, err := HuffmanDecode(&buf, p[:strLen]); err != nil {
return "", nil, err
if wantStr {
buf := bufPool.Get().(*bytes.Buffer)
buf.Reset() // don't trust others
defer bufPool.Put(buf)
if err := huffmanDecode(buf, d.maxStrLen, p[:strLen]); err != nil {
buf.Reset()
return "", nil, err
}
s = buf.String()
buf.Reset() // be nice to GC
}
return buf.String(), p[strLen:], nil
return s, p[strLen:], nil
}

49
vendor/src/golang.org/x/net/http2/hpack/huffman.go vendored
View file

@ -1,12 +1,12 @@
// Copyright 2014 The Go Authors.
// See https://code.google.com/p/go/source/browse/CONTRIBUTORS
// Licensed under the same terms as Go itself:
// https://code.google.com/p/go/source/browse/LICENSE
// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package hpack
import (
"bytes"
"errors"
"io"
"sync"
)
@ -22,15 +22,46 @@ func HuffmanDecode(w io.Writer, v []byte) (int, error) {
buf := bufPool.Get().(*bytes.Buffer)
buf.Reset()
defer bufPool.Put(buf)
if err := huffmanDecode(buf, 0, v); err != nil {
return 0, err
}
return w.Write(buf.Bytes())
}
// HuffmanDecodeToString decodes the string in v.
func HuffmanDecodeToString(v []byte) (string, error) {
buf := bufPool.Get().(*bytes.Buffer)
buf.Reset()
defer bufPool.Put(buf)
if err := huffmanDecode(buf, 0, v); err != nil {
return "", err
}
return buf.String(), nil
}
// ErrInvalidHuffman is returned for errors found decoding
// Huffman-encoded strings.
var ErrInvalidHuffman = errors.New("hpack: invalid Huffman-encoded data")
// huffmanDecode decodes v to buf.
// If maxLen is greater than 0, attempts to write more to buf than
// maxLen bytes will return ErrStringLength.
func huffmanDecode(buf *bytes.Buffer, maxLen int, v []byte) error {
n := rootHuffmanNode
cur, nbits := uint(0), uint8(0)
for _, b := range v {
cur = cur<<8 | uint(b)
nbits += 8
for nbits >= 8 {
n = n.children[byte(cur>>(nbits-8))]
idx := byte(cur >> (nbits - 8))
n = n.children[idx]
if n == nil {
return ErrInvalidHuffman
}
if n.children == nil {
if maxLen != 0 && buf.Len() == maxLen {
return ErrStringLength
}
buf.WriteByte(n.sym)
nbits -= n.codeLen
n = rootHuffmanNode
@ -48,7 +79,7 @@ func HuffmanDecode(w io.Writer, v []byte) (int, error) {
nbits -= n.codeLen
n = rootHuffmanNode
}
return w.Write(buf.Bytes())
return nil
}
type node struct {
@ -67,10 +98,10 @@ func newInternalNode() *node {
var rootHuffmanNode = newInternalNode()
func init() {
if len(huffmanCodes) != 256 {
panic("unexpected size")
}
for i, code := range huffmanCodes {
if i > 255 {
panic("too many huffman codes")
}
addDecoderNode(byte(i), code, huffmanCodeLen[i])
}
}

13
vendor/src/golang.org/x/net/http2/hpack/tables.go vendored
View file

@ -1,7 +1,6 @@
// Copyright 2014 The Go Authors.
// See https://code.google.com/p/go/source/browse/CONTRIBUTORS
// Licensed under the same terms as Go itself:
// https://code.google.com/p/go/source/browse/LICENSE
// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package hpack
@ -10,7 +9,7 @@ func pair(name, value string) HeaderField {
}
// http://tools.ietf.org/html/draft-ietf-httpbis-header-compression-07#appendix-B
var staticTable = []HeaderField{
var staticTable = [...]HeaderField{
pair(":authority", ""), // index 1 (1-based)
pair(":method", "GET"),
pair(":method", "POST"),
@ -74,7 +73,7 @@ var staticTable = []HeaderField{
pair("www-authenticate", ""),
}
var huffmanCodes = []uint32{
var huffmanCodes = [256]uint32{
0x1ff8,
0x7fffd8,
0xfffffe2,
@ -333,7 +332,7 @@ var huffmanCodes = []uint32{
0x3ffffee,
}
var huffmanCodeLen = []uint8{
var huffmanCodeLen = [256]uint8{
13, 23, 28, 28, 28, 28, 28, 28, 28, 24, 30, 28, 28, 30, 28, 28,
28, 28, 28, 28, 28, 28, 30, 28, 28, 28, 28, 28, 28, 28, 28, 28,
6, 10, 10, 12, 13, 6, 8, 11, 10, 10, 8, 11, 8, 6, 6, 6,

249
vendor/src/golang.org/x/net/http2/http2.go vendored
View file

@ -1,31 +1,51 @@
// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// See https://code.google.com/p/go/source/browse/CONTRIBUTORS
// Licensed under the same terms as Go itself:
// https://code.google.com/p/go/source/browse/LICENSE
// Package http2 implements the HTTP/2 protocol.
//
// This is a work in progress. This package is low-level and intended
// to be used directly by very few people. Most users will use it
// indirectly through integration with the net/http package. See
// ConfigureServer. That ConfigureServer call will likely be automatic
// or available via an empty import in the future.
// This package is low-level and intended to be used directly by very
// few people. Most users will use it indirectly through the automatic
// use by the net/http package (from Go 1.6 and later).
// For use in earlier Go versions see ConfigureServer. (Transport support
// requires Go 1.6 or later)
//
// See http://http2.github.io/
// See https://http2.github.io/ for more information on HTTP/2.
//
// See https://http2.golang.org/ for a test server running this code.
package http2
import (
"bufio"
"crypto/tls"
"errors"
"fmt"
"io"
"net/http"
"os"
"sort"
"strconv"
"strings"
"sync"
)
var VerboseLogs = false
var (
VerboseLogs bool
logFrameWrites bool
logFrameReads bool
)
func init() {
e := os.Getenv("GODEBUG")
if strings.Contains(e, "http2debug=1") {
VerboseLogs = true
}
if strings.Contains(e, "http2debug=2") {
VerboseLogs = true
logFrameWrites = true
logFrameReads = true
}
}
const (
// ClientPreface is the string that must be sent by new
@ -141,17 +161,63 @@ func (s SettingID) String() string {
return fmt.Sprintf("UNKNOWN_SETTING_%d", uint16(s))
}
func validHeader(v string) bool {
var (
errInvalidHeaderFieldName = errors.New("http2: invalid header field name")
errInvalidHeaderFieldValue = errors.New("http2: invalid header field value")
)
// validHeaderFieldName reports whether v is a valid header field name (key).
// RFC 7230 says:
// header-field = field-name ":" OWS field-value OWS
// field-name = token
// token = 1*tchar
// tchar = "!" / "#" / "$" / "%" / "&" / "'" / "*" / "+" / "-" / "." /
// "^" / "_" / "`" / "|" / "~" / DIGIT / ALPHA
// Further, http2 says:
// "Just as in HTTP/1.x, header field names are strings of ASCII
// characters that are compared in a case-insensitive
// fashion. However, header field names MUST be converted to
// lowercase prior to their encoding in HTTP/2. "
func validHeaderFieldName(v string) bool {
if len(v) == 0 {
return false
}
for _, r := range v {
// "Just as in HTTP/1.x, header field names are
// strings of ASCII characters that are compared in a
// case-insensitive fashion. However, header field
// names MUST be converted to lowercase prior to their
// encoding in HTTP/2. "
if r >= 127 || ('A' <= r && r <= 'Z') {
if int(r) >= len(isTokenTable) || ('A' <= r && r <= 'Z') {
return false
}
if !isTokenTable[byte(r)] {
return false
}
}
return true
}
// validHeaderFieldValue reports whether v is a valid header field value.
//
// RFC 7230 says:
// field-value = *( field-content / obs-fold )
// obj-fold = N/A to http2, and deprecated
// field-content = field-vchar [ 1*( SP / HTAB ) field-vchar ]
// field-vchar = VCHAR / obs-text
// obs-text = %x80-FF
// VCHAR = "any visible [USASCII] character"
//
// http2 further says: "Similarly, HTTP/2 allows header field values
// that are not valid. While most of the values that can be encoded
// will not alter header field parsing, carriage return (CR, ASCII
// 0xd), line feed (LF, ASCII 0xa), and the zero character (NUL, ASCII
// 0x0) might be exploited by an attacker if they are translated
// verbatim. Any request or response that contains a character not
// permitted in a header field value MUST be treated as malformed
// (Section 8.1.2.6). Valid characters are defined by the
// field-content ABNF rule in Section 3.2 of [RFC7230]."
//
// This function does not (yet?) properly handle the rejection of
// strings that begin or end with SP or HTAB.
func validHeaderFieldValue(v string) bool {
for i := 0; i < len(v); i++ {
if b := v[i]; b < ' ' && b != '\t' || b == 0x7f {
return false
}
}
@ -247,3 +313,152 @@ func (w *bufferedWriter) Flush() error {
w.bw = nil
return err
}
func mustUint31(v int32) uint32 {
if v < 0 || v > 2147483647 {
panic("out of range")
}
return uint32(v)
}
// bodyAllowedForStatus reports whether a given response status code
// permits a body. See RFC2616, section 4.4.
func bodyAllowedForStatus(status int) bool {
switch {
case status >= 100 && status <= 199:
return false
case status == 204:
return false
case status == 304:
return false
}
return true
}
type httpError struct {
msg string
timeout bool
}
func (e *httpError) Error() string { return e.msg }
func (e *httpError) Timeout() bool { return e.timeout }
func (e *httpError) Temporary() bool { return true }
var errTimeout error = &httpError{msg: "http2: timeout awaiting response headers", timeout: true}
var isTokenTable = [127]bool{
'!': true,
'#': true,
'$': true,
'%': true,
'&': true,
'\'': true,
'*': true,
'+': true,
'-': true,
'.': true,
'0': true,
'1': true,
'2': true,
'3': true,
'4': true,
'5': true,
'6': true,
'7': true,
'8': true,
'9': true,
'A': true,
'B': true,
'C': true,
'D': true,
'E': true,
'F': true,
'G': true,
'H': true,
'I': true,
'J': true,
'K': true,
'L': true,
'M': true,
'N': true,
'O': true,
'P': true,
'Q': true,
'R': true,
'S': true,
'T': true,
'U': true,
'W': true,
'V': true,
'X': true,
'Y': true,
'Z': true,
'^': true,
'_': true,
'`': true,
'a': true,
'b': true,
'c': true,
'd': true,
'e': true,
'f': true,
'g': true,
'h': true,
'i': true,
'j': true,
'k': true,
'l': true,
'm': true,
'n': true,
'o': true,
'p': true,
'q': true,
'r': true,
's': true,
't': true,
'u': true,
'v': true,
'w': true,
'x': true,
'y': true,
'z': true,
'|': true,
'~': true,
}
type connectionStater interface {
ConnectionState() tls.ConnectionState
}
var sorterPool = sync.Pool{New: func() interface{} { return new(sorter) }}
type sorter struct {
v []string // owned by sorter
}
func (s *sorter) Len() int { return len(s.v) }
func (s *sorter) Swap(i, j int) { s.v[i], s.v[j] = s.v[j], s.v[i] }
func (s *sorter) Less(i, j int) bool { return s.v[i] < s.v[j] }
// Keys returns the sorted keys of h.
//
// The returned slice is only valid until s used again or returned to
// its pool.
func (s *sorter) Keys(h http.Header) []string {
keys := s.v[:0]
for k := range h {
keys = append(keys, k)
}
s.v = keys
sort.Sort(s)
return keys
}
func (s *sorter) SortStrings(ss []string) {
// Our sorter works on s.v, which sorter owners, so
// stash it away while we sort the user's buffer.
save := s.v
s.v = ss
sort.Sort(s)
s.v = save
}

11
vendor/src/golang.org/x/net/http2/not_go15.go vendored Normal file
View file

@ -0,0 +1,11 @@
// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !go1.5
package http2
import "net/http"
func requestCancel(req *http.Request) <-chan struct{} { return nil }

13
vendor/src/golang.org/x/net/http2/not_go16.go vendored Normal file
View file

@ -0,0 +1,13 @@
// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !go1.6
package http2
import "net/http"
func configureTransport(t1 *http.Transport) (*Transport, error) {
return nil, errTransportVersion
}

150
vendor/src/golang.org/x/net/http2/pipe.go vendored
View file

@ -1,43 +1,147 @@
// Copyright 2014 The Go Authors.
// See https://code.google.com/p/go/source/browse/CONTRIBUTORS
// Licensed under the same terms as Go itself:
// https://code.google.com/p/go/source/browse/LICENSE
// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package http2
import (
"errors"
"io"
"sync"
)
// pipe is a goroutine-safe io.Reader/io.Writer pair. It's like
// io.Pipe except there are no PipeReader/PipeWriter halves, and the
// underlying buffer is an interface. (io.Pipe is always unbuffered)
type pipe struct {
b buffer
c sync.Cond
m sync.Mutex
mu sync.Mutex
c sync.Cond // c.L lazily initialized to &p.mu
b pipeBuffer
err error // read error once empty. non-nil means closed.
breakErr error // immediate read error (caller doesn't see rest of b)
donec chan struct{} // closed on error
readFn func() // optional code to run in Read before error
}
type pipeBuffer interface {
Len() int
io.Writer
io.Reader
}
// Read waits until data is available and copies bytes
// from the buffer into p.
func (r *pipe) Read(p []byte) (n int, err error) {
r.c.L.Lock()
defer r.c.L.Unlock()
for r.b.Len() == 0 && !r.b.closed {
r.c.Wait()
func (p *pipe) Read(d []byte) (n int, err error) {
p.mu.Lock()
defer p.mu.Unlock()
if p.c.L == nil {
p.c.L = &p.mu
}
for {
if p.breakErr != nil {
return 0, p.breakErr
}
if p.b.Len() > 0 {
return p.b.Read(d)
}
if p.err != nil {
if p.readFn != nil {
p.readFn() // e.g. copy trailers
p.readFn = nil // not sticky like p.err
}
return 0, p.err
}
p.c.Wait()
}
return r.b.Read(p)
}
var errClosedPipeWrite = errors.New("write on closed buffer")
// Write copies bytes from p into the buffer and wakes a reader.
// It is an error to write more data than the buffer can hold.
func (w *pipe) Write(p []byte) (n int, err error) {
w.c.L.Lock()
defer w.c.L.Unlock()
defer w.c.Signal()
return w.b.Write(p)
func (p *pipe) Write(d []byte) (n int, err error) {
p.mu.Lock()
defer p.mu.Unlock()
if p.c.L == nil {
p.c.L = &p.mu
}
defer p.c.Signal()
if p.err != nil {
return 0, errClosedPipeWrite
}
return p.b.Write(d)
}
func (c *pipe) Close(err error) {
c.c.L.Lock()
defer c.c.L.Unlock()
defer c.c.Signal()
c.b.Close(err)
// CloseWithError causes the next Read (waking up a current blocked
// Read if needed) to return the provided err after all data has been
// read.
//
// The error must be non-nil.
func (p *pipe) CloseWithError(err error) { p.closeWithError(&p.err, err, nil) }
// BreakWithError causes the next Read (waking up a current blocked
// Read if needed) to return the provided err immediately, without
// waiting for unread data.
func (p *pipe) BreakWithError(err error) { p.closeWithError(&p.breakErr, err, nil) }
// closeWithErrorAndCode is like CloseWithError but also sets some code to run
// in the caller's goroutine before returning the error.
func (p *pipe) closeWithErrorAndCode(err error, fn func()) { p.closeWithError(&p.err, err, fn) }
func (p *pipe) closeWithError(dst *error, err error, fn func()) {
if err == nil {
panic("err must be non-nil")
}
p.mu.Lock()
defer p.mu.Unlock()
if p.c.L == nil {
p.c.L = &p.mu
}
defer p.c.Signal()
if *dst != nil {
// Already been done.
return
}
p.readFn = fn
*dst = err
p.closeDoneLocked()
}
// requires p.mu be held.
func (p *pipe) closeDoneLocked() {
if p.donec == nil {
return
}
// Close if unclosed. This isn't racy since we always
// hold p.mu while closing.
select {
case <-p.donec:
default:
close(p.donec)
}
}
// Err returns the error (if any) first set by BreakWithError or CloseWithError.
func (p *pipe) Err() error {
p.mu.Lock()
defer p.mu.Unlock()
if p.breakErr != nil {
return p.breakErr
}
return p.err
}
// Done returns a channel which is closed if and when this pipe is closed
// with CloseWithError.
func (p *pipe) Done() <-chan struct{} {
p.mu.Lock()
defer p.mu.Unlock()
if p.donec == nil {
p.donec = make(chan struct{})
if p.err != nil || p.breakErr != nil {
// Already hit an error.
p.closeDoneLocked()
}
}
return p.donec
}

1116
vendor/src/golang.org/x/net/http2/server.go vendored
View file

File diff suppressed because it is too large Load diff

1689
vendor/src/golang.org/x/net/http2/transport.go vendored
View file

File diff suppressed because it is too large Load diff

98
vendor/src/golang.org/x/net/http2/write.go vendored
View file

@ -1,15 +1,13 @@
// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// See https://code.google.com/p/go/source/browse/CONTRIBUTORS
// Licensed under the same terms as Go itself:
// https://code.google.com/p/go/source/browse/LICENSE
package http2
import (
"bytes"
"fmt"
"log"
"net/http"
"time"
@ -26,7 +24,11 @@ type writeFramer interface {
// frame writing scheduler (see writeScheduler in writesched.go).
//
// This interface is implemented by *serverConn.
// TODO: use it from the client code too, once it exists.
//
// TODO: decide whether to a) use this in the client code (which didn't
// end up using this yet, because it has a simpler design, not
// currently implementing priorities), or b) delete this and
// make the server code a bit more concrete.
type writeContext interface {
Framer() *Framer
Flush() error
@ -44,6 +46,11 @@ func endsStream(w writeFramer) bool {
return v.endStream
case *writeResHeaders:
return v.endStream
case nil:
// This can only happen if the caller reuses w after it's
// been intentionally nil'ed out to prevent use. Keep this
// here to catch future refactoring breaking it.
panic("endsStream called on nil writeFramer")
}
return false
}
@ -89,6 +96,16 @@ func (w *writeData) writeFrame(ctx writeContext) error {
return ctx.Framer().WriteData(w.streamID, w.endStream, w.p)
}
// handlerPanicRST is the message sent from handler goroutines when
// the handler panics.
type handlerPanicRST struct {
StreamID uint32
}
func (hp handlerPanicRST) writeFrame(ctx writeContext) error {
return ctx.Framer().WriteRSTStream(hp.StreamID, ErrCodeInternal)
}
func (se StreamError) writeFrame(ctx writeContext) error {
return ctx.Framer().WriteRSTStream(se.StreamID, se.Code)
}
@ -106,40 +123,48 @@ func (writeSettingsAck) writeFrame(ctx writeContext) error {
}
// writeResHeaders is a request to write a HEADERS and 0+ CONTINUATION frames
// for HTTP response headers from a server handler.
// for HTTP response headers or trailers from a server handler.
type writeResHeaders struct {
streamID uint32
httpResCode int
httpResCode int // 0 means no ":status" line
h http.Header // may be nil
trailers []string // if non-nil, which keys of h to write. nil means all.
endStream bool
date string
contentType string
contentLength string
}
func encKV(enc *hpack.Encoder, k, v string) {
if VerboseLogs {
log.Printf("http2: server encoding header %q = %q", k, v)
}
enc.WriteField(hpack.HeaderField{Name: k, Value: v})
}
func (w *writeResHeaders) writeFrame(ctx writeContext) error {
enc, buf := ctx.HeaderEncoder()
buf.Reset()
enc.WriteField(hpack.HeaderField{Name: ":status", Value: httpCodeString(w.httpResCode)})
for k, vv := range w.h {
k = lowerHeader(k)
for _, v := range vv {
// TODO: more of "8.1.2.2 Connection-Specific Header Fields"
if k == "transfer-encoding" && v != "trailers" {
continue
}
enc.WriteField(hpack.HeaderField{Name: k, Value: v})
}
if w.httpResCode != 0 {
encKV(enc, ":status", httpCodeString(w.httpResCode))
}
encodeHeaders(enc, w.h, w.trailers)
if w.contentType != "" {
enc.WriteField(hpack.HeaderField{Name: "content-type", Value: w.contentType})
encKV(enc, "content-type", w.contentType)
}
if w.contentLength != "" {
enc.WriteField(hpack.HeaderField{Name: "content-length", Value: w.contentLength})
encKV(enc, "content-length", w.contentLength)
}
if w.date != "" {
encKV(enc, "date", w.date)
}
headerBlock := buf.Bytes()
if len(headerBlock) == 0 {
if len(headerBlock) == 0 && w.trailers == nil {
panic("unexpected empty hpack")
}
@ -185,7 +210,7 @@ type write100ContinueHeadersFrame struct {
func (w write100ContinueHeadersFrame) writeFrame(ctx writeContext) error {
enc, buf := ctx.HeaderEncoder()
buf.Reset()
enc.WriteField(hpack.HeaderField{Name: ":status", Value: "100"})
encKV(enc, ":status", "100")
return ctx.Framer().WriteHeaders(HeadersFrameParam{
StreamID: w.streamID,
BlockFragment: buf.Bytes(),
@ -202,3 +227,36 @@ type writeWindowUpdate struct {
func (wu writeWindowUpdate) writeFrame(ctx writeContext) error {
return ctx.Framer().WriteWindowUpdate(wu.streamID, wu.n)
}
func encodeHeaders(enc *hpack.Encoder, h http.Header, keys []string) {
if keys == nil {
sorter := sorterPool.Get().(*sorter)
// Using defer here, since the returned keys from the
// sorter.Keys method is only valid until the sorter
// is returned:
defer sorterPool.Put(sorter)
keys = sorter.Keys(h)
}
for _, k := range keys {
vv := h[k]
k = lowerHeader(k)
if !validHeaderFieldName(k) {
// TODO: return an error? golang.org/issue/14048
// For now just omit it.
continue
}
isTE := k == "transfer-encoding"
for _, v := range vv {
if !validHeaderFieldValue(v) {
// TODO: return an error? golang.org/issue/14048
// For now just omit it.
continue
}
// TODO: more of "8.1.2.2 Connection-Specific Header Fields"
if isTE && v != "trailers" {
continue
}
encKV(enc, k, v)
}
}
}

3
vendor/src/golang.org/x/net/http2/writesched.go vendored
View file

@ -1,9 +1,6 @@
// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// See https://code.google.com/p/go/source/browse/CONTRIBUTORS
// Licensed under the same terms as Go itself:
// https://code.google.com/p/go/source/browse/LICENSE
package http2

15
vendor/src/golang.org/x/net/trace/trace.go vendored
View file

@ -95,11 +95,14 @@ var DebugUseAfterFinish = false
//
// The default AuthRequest function returns (true, true) iff the request comes from localhost/127.0.0.1/[::1].
var AuthRequest = func(req *http.Request) (any, sensitive bool) {
// RemoteAddr is commonly in the form "IP" or "IP:port".
// If it is in the form "IP:port", split off the port.
host, _, err := net.SplitHostPort(req.RemoteAddr)
switch {
case err != nil: // Badly formed address; fail closed.
return false, false
case host == "localhost" || host == "127.0.0.1" || host == "::1":
if err != nil {
host = req.RemoteAddr
}
switch host {
case "localhost", "127.0.0.1", "::1":
return true, true
default:
return false, false
@ -113,6 +116,7 @@ func init() {
http.Error(w, "not allowed", http.StatusUnauthorized)
return
}
w.Header().Set("Content-Type", "text/html; charset=utf-8")
Render(w, req, sensitive)
})
http.HandleFunc("/debug/events", func(w http.ResponseWriter, req *http.Request) {
@ -121,6 +125,7 @@ func init() {
http.Error(w, "not allowed", http.StatusUnauthorized)
return
}
w.Header().Set("Content-Type", "text/html; charset=utf-8")
RenderEvents(w, req, sensitive)
})
}
@ -172,7 +177,7 @@ func Render(w io.Writer, req *http.Request, sensitive bool) {
completedMu.RLock()
data.Families = make([]string, 0, len(completedTraces))
for fam, _ := range completedTraces {
for fam := range completedTraces {
data.Families = append(data.Families, fam)
}
completedMu.RUnlock()

2
vendor/src/golang.org/x/net/websocket/websocket.go vendored
View file

@ -144,6 +144,8 @@ type frameHandler interface {
}
// Conn represents a WebSocket connection.
//
// Multiple goroutines may invoke methods on a Conn simultaneously.
type Conn struct {
config *Config
request *http.Request

5
vendor/src/google.golang.org/grpc/.travis.yml vendored
View file

@ -1,5 +1,9 @@
language: go
go:
- 1.5.3
- 1.6
before_install:
- go get github.com/axw/gocov/gocov
- go get github.com/mattn/goveralls
@ -11,4 +15,3 @@ install:
script:
- make test testrace
- make coverage

31
vendor/src/google.golang.org/grpc/CONTRIBUTING.md vendored
View file

@ -1,16 +1,39 @@
# How to contribute
We definitely welcome patches and contribution to grpc! Here is some guideline
We definitely welcome patches and contribution to grpc! Here are some guidelines
and information about how to do so.
## Getting started
## Sending patches
### Legal requirements
### Getting started
1. Check out the code:
$ go get google.golang.org/grpc
$ cd $GOPATH/src/google.golang.org/grpc
1. Create a fork of the grpc-go repository.
1. Add your fork as a remote:
$ git remote add fork git@github.com:$YOURGITHUBUSERNAME/grpc-go.git
1. Make changes, commit them.
1. Run the test suite:
$ make test
1. Push your changes to your fork:
$ git push fork ...
1. Open a pull request.
## Legal requirements
In order to protect both you and ourselves, you will need to sign the
[Contributor License Agreement](https://cla.developers.google.com/clas).
### Filing Issues
## Filing Issues
When filing an issue, make sure to answer these five questions:
1. What version of Go are you using (`go version`)?

29
vendor/src/google.golang.org/grpc/Makefile vendored
View file

@ -1,15 +1,3 @@
.PHONY: \
all \
deps \
updatedeps \
testdeps \
updatetestdeps \
build \
proto \
test \
testrace \
clean \
all: test testrace
deps:
@ -32,7 +20,7 @@ proto:
echo "error: protoc not installed" >&2; \
exit 1; \
fi
go get -v github.com/golang/protobuf/protoc-gen-go
go get -u -v github.com/golang/protobuf/protoc-gen-go
for file in $$(git ls-files '*.proto'); do \
protoc -I $$(dirname $$file) --go_out=plugins=grpc:$$(dirname $$file) $$file; \
done
@ -44,7 +32,20 @@ testrace: testdeps
go test -v -race -cpu 1,4 google.golang.org/grpc/...
clean:
go clean google.golang.org/grpc/...
go clean -i google.golang.org/grpc/...
coverage: testdeps
./coverage.sh --coveralls
.PHONY: \
all \
deps \
updatedeps \
testdeps \
updatetestdeps \
build \
proto \
test \
testrace \
clean \
coverage

4
vendor/src/google.golang.org/grpc/README.md vendored
View file

@ -7,7 +7,7 @@ The Go implementation of [gRPC](http://www.grpc.io/): A high performance, open s
Installation
------------
To install this package, you need to install Go 1.4 or above and setup your Go workspace on your computer. The simplest way to install the library is to run:
To install this package, you need to install Go and setup your Go workspace on your computer. The simplest way to install the library is to run:
```
$ go get google.golang.org/grpc
@ -16,7 +16,7 @@ $ go get google.golang.org/grpc
Prerequisites
-------------
This requires Go 1.4 or above.
This requires Go 1.5 or later .
Constraints
-----------

80
vendor/src/google.golang.org/grpc/backoff.go vendored Normal file
View file

@ -0,0 +1,80 @@
package grpc
import (
"math/rand"
"time"
)
// DefaultBackoffConfig uses values specified for backoff in
// https://github.com/grpc/grpc/blob/master/doc/connection-backoff.md.
var (
DefaultBackoffConfig = BackoffConfig{
MaxDelay: 120 * time.Second,
baseDelay: 1.0 * time.Second,
factor: 1.6,
jitter: 0.2,
}
)
// backoffStrategy defines the methodology for backing off after a grpc
// connection failure.
//
// This is unexported until the GRPC project decides whether or not to allow
// alternative backoff strategies. Once a decision is made, this type and its
// method may be exported.
type backoffStrategy interface {
// backoff returns the amount of time to wait before the next retry given
// the number of consecutive failures.
backoff(retries int) time.Duration
}
// BackoffConfig defines the parameters for the default GRPC backoff strategy.
type BackoffConfig struct {
// MaxDelay is the upper bound of backoff delay.
MaxDelay time.Duration
// TODO(stevvooe): The following fields are not exported, as allowing
// changes would violate the current GRPC specification for backoff. If
// GRPC decides to allow more interesting backoff strategies, these fields
// may be opened up in the future.
// baseDelay is the amount of time to wait before retrying after the first
// failure.
baseDelay time.Duration
// factor is applied to the backoff after each retry.
factor float64
// jitter provides a range to randomize backoff delays.
jitter float64
}
func setDefaults(bc *BackoffConfig) {
md := bc.MaxDelay
*bc = DefaultBackoffConfig
if md > 0 {
bc.MaxDelay = md
}
}
func (bc BackoffConfig) backoff(retries int) (t time.Duration) {
if retries == 0 {
return bc.baseDelay
}
backoff, max := float64(bc.baseDelay), float64(bc.MaxDelay)
for backoff < max && retries > 0 {
backoff *= bc.factor
retries--
}
if backoff > max {
backoff = max
}
// Randomize backoff delays so that if a cluster of requests start at
// the same time, they won't operate in lockstep.
backoff *= 1 + bc.jitter*(rand.Float64()*2-1)
if backoff < 0 {
return 0
}
return time.Duration(backoff)
}

39
vendor/src/google.golang.org/grpc/call.go vendored
View file

@ -34,13 +34,13 @@
package grpc
import (
"bytes"
"io"
"time"
"golang.org/x/net/context"
"golang.org/x/net/trace"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/metadata"
"google.golang.org/grpc/transport"
)
@ -48,16 +48,16 @@ import (
// On error, it returns the error and indicates whether the call should be retried.
//
// TODO(zhaoq): Check whether the received message sequence is valid.
func recvResponse(codec Codec, t transport.ClientTransport, c *callInfo, stream *transport.Stream, reply interface{}) error {
func recvResponse(dopts dialOptions, t transport.ClientTransport, c *callInfo, stream *transport.Stream, reply interface{}) error {
// Try to acquire header metadata from the server if there is any.
var err error
c.headerMD, err = stream.Header()
if err != nil {
return err
}
p := &parser{s: stream}
p := &parser{r: stream}
for {
if err = recv(p, codec, reply); err != nil {
if err = recv(p, dopts.codec, stream, dopts.dc, reply); err != nil {
if err == io.EOF {
break
}
@ -69,7 +69,7 @@ func recvResponse(codec Codec, t transport.ClientTransport, c *callInfo, stream
}
// sendRequest writes out various information of an RPC such as Context and Message.
func sendRequest(ctx context.Context, codec Codec, callHdr *transport.CallHdr, t transport.ClientTransport, args interface{}, opts *transport.Options) (_ *transport.Stream, err error) {
func sendRequest(ctx context.Context, codec Codec, compressor Compressor, callHdr *transport.CallHdr, t transport.ClientTransport, args interface{}, opts *transport.Options) (_ *transport.Stream, err error) {
stream, err := t.NewStream(ctx, callHdr)
if err != nil {
return nil, err
@ -81,8 +81,11 @@ func sendRequest(ctx context.Context, codec Codec, callHdr *transport.CallHdr, t
}
}
}()
// TODO(zhaoq): Support compression.
outBuf, err := encode(codec, args, compressionNone)
var cbuf *bytes.Buffer
if compressor != nil {
cbuf = new(bytes.Buffer)
}
outBuf, err := encode(codec, args, compressor, cbuf)
if err != nil {
return nil, transport.StreamErrorf(codes.Internal, "grpc: %v", err)
}
@ -94,16 +97,9 @@ func sendRequest(ctx context.Context, codec Codec, callHdr *transport.CallHdr, t
return stream, nil
}
// callInfo contains all related configuration and information about an RPC.
type callInfo struct {
failFast bool
headerMD metadata.MD
trailerMD metadata.MD
traceInfo traceInfo // in trace.go
}
// Invoke is called by the generated code. It sends the RPC request on the
// wire and returns after response is received.
// Invoke sends the RPC request on the wire and returns after response is received.
// Invoke is called by generated code. Also users can call Invoke directly when it
// is really needed in their use cases.
func Invoke(ctx context.Context, method string, args, reply interface{}, cc *ClientConn, opts ...CallOption) (err error) {
var c callInfo
for _, o := range opts {
@ -153,6 +149,9 @@ func Invoke(ctx context.Context, method string, args, reply interface{}, cc *Cli
Host: cc.authority,
Method: method,
}
if cc.dopts.cp != nil {
callHdr.SendCompress = cc.dopts.cp.Type()
}
t, err = cc.dopts.picker.Pick(ctx)
if err != nil {
if lastErr != nil {
@ -164,7 +163,7 @@ func Invoke(ctx context.Context, method string, args, reply interface{}, cc *Cli
if c.traceInfo.tr != nil {
c.traceInfo.tr.LazyLog(&payload{sent: true, msg: args}, true)
}
stream, err = sendRequest(ctx, cc.dopts.codec, callHdr, t, args, topts)
stream, err = sendRequest(ctx, cc.dopts.codec, cc.dopts.cp, callHdr, t, args, topts)
if err != nil {
if _, ok := err.(transport.ConnectionError); ok {
lastErr = err
@ -176,7 +175,7 @@ func Invoke(ctx context.Context, method string, args, reply interface{}, cc *Cli
return toRPCErr(err)
}
// Receive the response
lastErr = recvResponse(cc.dopts.codec, t, &c, stream, reply)
lastErr = recvResponse(cc.dopts, t, &c, stream, reply)
if _, ok := lastErr.(transport.ConnectionError); ok {
continue
}
@ -187,6 +186,6 @@ func Invoke(ctx context.Context, method string, args, reply interface{}, cc *Cli
if lastErr != nil {
return toRPCErr(lastErr)
}
return Errorf(stream.StatusCode(), stream.StatusDesc())
return Errorf(stream.StatusCode(), "%s", stream.StatusDesc())
}
}

69
vendor/src/google.golang.org/grpc/clientconn.go vendored
View file

@ -52,10 +52,10 @@ var (
// ErrUnspecTarget indicates that the target address is unspecified.
ErrUnspecTarget = errors.New("grpc: target is unspecified")
// ErrNoTransportSecurity indicates that there is no transport security
// being set for ClientConn. Users should either set one or explicityly
// being set for ClientConn. Users should either set one or explicitly
// call WithInsecure DialOption to disable security.
ErrNoTransportSecurity = errors.New("grpc: no transport security set (use grpc.WithInsecure() explicitly or set credentials)")
// ErrCredentialsMisuse indicates that users want to transmit security infomation
// ErrCredentialsMisuse indicates that users want to transmit security information
// (e.g., oauth2 token) which requires secure connection on an insecure
// connection.
ErrCredentialsMisuse = errors.New("grpc: the credentials require transport level security (use grpc.WithTransportAuthenticator() to set)")
@ -73,6 +73,9 @@ var (
// values passed to Dial.
type dialOptions struct {
codec Codec
cp Compressor
dc Decompressor
bs backoffStrategy
picker Picker
block bool
insecure bool
@ -89,12 +92,57 @@ func WithCodec(c Codec) DialOption {
}
}
// WithCompressor returns a DialOption which sets a CompressorGenerator for generating message
// compressor.
func WithCompressor(cp Compressor) DialOption {
return func(o *dialOptions) {
o.cp = cp
}
}
// WithDecompressor returns a DialOption which sets a DecompressorGenerator for generating
// message decompressor.
func WithDecompressor(dc Decompressor) DialOption {
return func(o *dialOptions) {
o.dc = dc
}
}
// WithPicker returns a DialOption which sets a picker for connection selection.
func WithPicker(p Picker) DialOption {
return func(o *dialOptions) {
o.picker = p
}
}
// WithBackoffMaxDelay configures the dialer to use the provided maximum delay
// when backing off after failed connection attempts.
func WithBackoffMaxDelay(md time.Duration) DialOption {
return WithBackoffConfig(BackoffConfig{MaxDelay: md})
}
// WithBackoffConfig configures the dialer to use the provided backoff
// parameters after connection failures.
//
// Use WithBackoffMaxDelay until more parameters on BackoffConfig are opened up
// for use.
func WithBackoffConfig(b BackoffConfig) DialOption {
// Set defaults to ensure that provided BackoffConfig is valid and
// unexported fields get default values.
setDefaults(&b)
return withBackoff(b)
}
// withBackoff sets the backoff strategy used for retries after a
// failed connection attempt.
//
// This can be exported if arbitrary backoff strategies are allowed by GRPC.
func withBackoff(bs backoffStrategy) DialOption {
return func(o *dialOptions) {
o.bs = bs
}
}
// WithBlock returns a DialOption which makes caller of Dial blocks until the underlying
// connection is up. Without this, Dial returns immediately and connecting the server
// happens in background.
@ -104,6 +152,8 @@ func WithBlock() DialOption {
}
}
// WithInsecure returns a DialOption which disables transport security for this ClientConn.
// Note that transport security is required unless WithInsecure is set.
func WithInsecure() DialOption {
return func(o *dialOptions) {
o.insecure = true
@ -159,6 +209,11 @@ func Dial(target string, opts ...DialOption) (*ClientConn, error) {
// Set the default codec.
cc.dopts.codec = protoCodec{}
}
if cc.dopts.bs == nil {
cc.dopts.bs = DefaultBackoffConfig
}
if cc.dopts.picker == nil {
cc.dopts.picker = &unicastPicker{
target: target,
@ -267,10 +322,9 @@ func NewConn(cc *ClientConn) (*Conn, error) {
if !c.dopts.insecure {
var ok bool
for _, cd := range c.dopts.copts.AuthOptions {
if _, ok := cd.(credentials.TransportAuthenticator); !ok {
continue
if _, ok = cd.(credentials.TransportAuthenticator); ok {
break
}
ok = true
}
if !ok {
return nil, ErrNoTransportSecurity
@ -395,7 +449,7 @@ func (cc *Conn) resetTransport(closeTransport bool) error {
return ErrClientConnTimeout
}
}
sleepTime := backoff(retries)
sleepTime := cc.dopts.bs.backoff(retries)
timeout := sleepTime
if timeout < minConnectTimeout {
timeout = minConnectTimeout
@ -518,8 +572,9 @@ func (cc *Conn) Wait(ctx context.Context) (transport.ClientTransport, error) {
cc.mu.Unlock()
return nil, ErrClientConnClosing
case cc.state == Ready:
ct := cc.transport
cc.mu.Unlock()
return cc.transport, nil
return ct, nil
default:
ready := cc.ready
if ready == nil {

13
vendor/src/google.golang.org/grpc/coverage.sh vendored
View file

@ -4,15 +4,20 @@ set -e
workdir=.cover
profile="$workdir/cover.out"
mode=count
mode=set
end2endtest="google.golang.org/grpc/test"
generate_cover_data() {
rm -rf "$workdir"
mkdir "$workdir"
for pkg in "$@"; do
f="$workdir/$(echo $pkg | tr / -).cover"
go test -covermode="$mode" -coverprofile="$f" "$pkg"
if [ $pkg == "google.golang.org/grpc" -o $pkg == "google.golang.org/grpc/transport" -o $pkg == "google.golang.org/grpc/metadata" -o $pkg == "google.golang.org/grpc/credentials" ]
then
f="$workdir/$(echo $pkg | tr / -)"
go test -covermode="$mode" -coverprofile="$f.cover" "$pkg"
go test -covermode="$mode" -coverpkg "$pkg" -coverprofile="$f.e2e.cover" "$end2endtest"
fi
done
echo "mode: $mode" >"$profile"
@ -32,6 +37,8 @@ show_cover_report func
case "$1" in
"")
;;
--html)
show_cover_report html ;;
--coveralls)
push_to_coveralls ;;
*)

13
vendor/src/google.golang.org/grpc/credentials/credentials.go vendored
View file

@ -87,19 +87,6 @@ type AuthInfo interface {
AuthType() string
}
type authInfoKey struct{}
// NewContext creates a new context with authInfo attached.
func NewContext(ctx context.Context, authInfo AuthInfo) context.Context {
return context.WithValue(ctx, authInfoKey{}, authInfo)
}
// FromContext returns the authInfo in ctx if it exists.
func FromContext(ctx context.Context) (authInfo AuthInfo, ok bool) {
authInfo, ok = ctx.Value(authInfoKey{}).(AuthInfo)
return
}
// TransportAuthenticator defines the common interface for all the live gRPC wire
// protocols and supported transport security protocols (e.g., TLS, SSL).
type TransportAuthenticator interface {

2
vendor/src/google.golang.org/grpc/doc.go vendored
View file

@ -1,6 +1,6 @@
/*
Package grpc implements an RPC system called gRPC.
See https://github.com/grpc/grpc for more information about gRPC.
See www.grpc.io for more information about gRPC.
*/
package grpc // import "google.golang.org/grpc"

5
vendor/src/google.golang.org/grpc/grpclog/logger.go vendored
View file

@ -42,6 +42,8 @@ import (
)
// Use golang's standard logger by default.
// Access is not mutex-protected: do not modify except in init()
// functions.
var logger Logger = log.New(os.Stderr, "", log.LstdFlags)
// Logger mimics golang's standard Logger as an interface.
@ -54,7 +56,8 @@ type Logger interface {
Println(args ...interface{})
}
// SetLogger sets the logger that is used in grpc.
// SetLogger sets the logger that is used in grpc. Call only from
// init() functions.
func SetLogger(l Logger) {
logger = l
}

74
vendor/src/google.golang.org/grpc/interceptor.go vendored Normal file
View file

@ -0,0 +1,74 @@
/*
*
* Copyright 2016, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
package grpc
import (
"golang.org/x/net/context"
)
// UnaryServerInfo consists of various information about a unary RPC on
// server side. All per-rpc information may be mutated by the interceptor.
type UnaryServerInfo struct {
// Server is the service implementation the user provides. This is read-only.
Server interface{}
// FullMethod is the full RPC method string, i.e., /package.service/method.
FullMethod string
}
// UnaryHandler defines the handler invoked by UnaryServerInterceptor to complete the normal
// execution of a unary RPC.
type UnaryHandler func(ctx context.Context, req interface{}) (interface{}, error)
// UnaryServerInterceptor provides a hook to intercept the execution of a unary RPC on the server. info
// contains all the information of this RPC the interceptor can operate on. And handler is the wrapper
// of the service method implementation. It is the responsibility of the interceptor to invoke handler
// to complete the RPC.
type UnaryServerInterceptor func(ctx context.Context, req interface{}, info *UnaryServerInfo, handler UnaryHandler) (resp interface{}, err error)
// StreamServerInfo consists of various information about a streaming RPC on
// server side. All per-rpc information may be mutated by the interceptor.
type StreamServerInfo struct {
// FullMethod is the full RPC method string, i.e., /package.service/method.
FullMethod string
// IsClientStream indicates whether the RPC is a client streaming RPC.
IsClientStream bool
// IsServerStream indicates whether the RPC is a server streaming RPC.
IsServerStream bool
}
// StreamServerInterceptor provides a hook to intercept the execution of a streaming RPC on the server.
// info contains all the information of this RPC the interceptor can operate on. And handler is the
// service method implementation. It is the responsibility of the interceptor to invoke handler to
// complete the RPC.
type StreamServerInterceptor func(srv interface{}, ss ServerStream, info *StreamServerInfo, handler StreamHandler) error

49
vendor/src/google.golang.org/grpc/internal/internal.go vendored Normal file
View file

@ -0,0 +1,49 @@
/*
* Copyright 2016, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
// Package internal contains gRPC-internal code for testing, to avoid polluting
// the godoc of the top-level grpc package.
package internal
// TestingCloseConns closes all existing transports but keeps
// grpcServer.lis accepting new connections.
//
// The provided grpcServer must be of type *grpc.Server. It is untyped
// for circular dependency reasons.
var TestingCloseConns func(grpcServer interface{})
// TestingUseHandlerImpl enables the http.Handler-based server implementation.
// It must be called before Serve and requires TLS credentials.
//
// The provided grpcServer must be of type *grpc.Server. It is untyped
// for circular dependency reasons.
var TestingUseHandlerImpl func(grpcServer interface{})

65
vendor/src/google.golang.org/grpc/peer/peer.go vendored Normal file
View file

@ -0,0 +1,65 @@
/*
*
* Copyright 2014, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
// Package peer defines various peer information associated with RPCs and
// corresponding utils.
package peer
import (
"net"
"golang.org/x/net/context"
"google.golang.org/grpc/credentials"
)
// Peer contains the information of the peer for an RPC.
type Peer struct {
// Addr is the peer address.
Addr net.Addr
// AuthInfo is the authentication information of the transport.
// It is nil if there is no transport security being used.
AuthInfo credentials.AuthInfo
}
type peerKey struct{}
// NewContext creates a new context with peer information attached.
func NewContext(ctx context.Context, p *Peer) context.Context {
return context.WithValue(ctx, peerKey{}, p)
}
// FromContext returns the peer information in ctx if it exists.
func FromContext(ctx context.Context) (p *Peer, ok bool) {
p, ok = ctx.Value(peerKey{}).(*Peer)
return
}

2
vendor/src/google.golang.org/grpc/picker.go vendored
View file

@ -172,7 +172,7 @@ func (p *unicastNamingPicker) processUpdates() error {
}
p.mu.Unlock()
default:
grpclog.Println("Unknown update.Op %d", update.Op)
grpclog.Println("Unknown update.Op ", update.Op)
}
}
return nil

203
vendor/src/google.golang.org/grpc/rpc_util.go vendored
View file

@ -34,13 +34,14 @@
package grpc
import (
"bytes"
"compress/gzip"
"encoding/binary"
"fmt"
"io"
"io/ioutil"
"math"
"math/rand"
"os"
"time"
"github.com/golang/protobuf/proto"
"golang.org/x/net/context"
@ -75,6 +76,71 @@ func (protoCodec) String() string {
return "proto"
}
// Compressor defines the interface gRPC uses to compress a message.
type Compressor interface {
// Do compresses p into w.
Do(w io.Writer, p []byte) error
// Type returns the compression algorithm the Compressor uses.
Type() string
}
// NewGZIPCompressor creates a Compressor based on GZIP.
func NewGZIPCompressor() Compressor {
return &gzipCompressor{}
}
type gzipCompressor struct {
}
func (c *gzipCompressor) Do(w io.Writer, p []byte) error {
z := gzip.NewWriter(w)
if _, err := z.Write(p); err != nil {
return err
}
return z.Close()
}
func (c *gzipCompressor) Type() string {
return "gzip"
}
// Decompressor defines the interface gRPC uses to decompress a message.
type Decompressor interface {
// Do reads the data from r and uncompress them.
Do(r io.Reader) ([]byte, error)
// Type returns the compression algorithm the Decompressor uses.
Type() string
}
type gzipDecompressor struct {
}
// NewGZIPDecompressor creates a Decompressor based on GZIP.
func NewGZIPDecompressor() Decompressor {
return &gzipDecompressor{}
}
func (d *gzipDecompressor) Do(r io.Reader) ([]byte, error) {
z, err := gzip.NewReader(r)
if err != nil {
return nil, err
}
defer z.Close()
return ioutil.ReadAll(z)
}
func (d *gzipDecompressor) Type() string {
return "gzip"
}
// callInfo contains all related configuration and information about an RPC.
type callInfo struct {
failFast bool
headerMD metadata.MD
trailerMD metadata.MD
traceInfo traceInfo // in trace.go
}
// CallOption configures a Call before it starts or extracts information from
// a Call after it completes.
type CallOption interface {
@ -118,36 +184,49 @@ type payloadFormat uint8
const (
compressionNone payloadFormat = iota // no compression
compressionFlate
// More formats
compressionMade
)
// parser reads complelete gRPC messages from the underlying reader.
type parser struct {
s io.Reader
}
// r is the underlying reader.
// See the comment on recvMsg for the permissible
// error types.
r io.Reader
// recvMsg is to read a complete gRPC message from the stream. It is blocking if
// the message has not been complete yet. It returns the message and its type,
// EOF is returned with nil msg and 0 pf if the entire stream is done. Other
// non-nil error is returned if something is wrong on reading.
func (p *parser) recvMsg() (pf payloadFormat, msg []byte, err error) {
// The header of a gRPC message. Find more detail
// at http://www.grpc.io/docs/guides/wire.html.
var buf [5]byte
header [5]byte
}
if _, err := io.ReadFull(p.s, buf[:]); err != nil {
// recvMsg reads a complete gRPC message from the stream.
//
// It returns the message and its payload (compression/encoding)
// format. The caller owns the returned msg memory.
//
// If there is an error, possible values are:
// * io.EOF, when no messages remain
// * io.ErrUnexpectedEOF
// * of type transport.ConnectionError
// * of type transport.StreamError
// No other error values or types must be returned, which also means
// that the underlying io.Reader must not return an incompatible
// error.
func (p *parser) recvMsg() (pf payloadFormat, msg []byte, err error) {
if _, err := io.ReadFull(p.r, p.header[:]); err != nil {
return 0, nil, err
}
pf = payloadFormat(buf[0])
length := binary.BigEndian.Uint32(buf[1:])
pf = payloadFormat(p.header[0])
length := binary.BigEndian.Uint32(p.header[1:])
if length == 0 {
return pf, nil, nil
}
// TODO(bradfitz,zhaoq): garbage. reuse buffer after proto decoding instead
// of making it for each message:
msg = make([]byte, int(length))
if _, err := io.ReadFull(p.s, msg); err != nil {
if _, err := io.ReadFull(p.r, msg); err != nil {
if err == io.EOF {
err = io.ErrUnexpectedEOF
}
@ -158,7 +237,7 @@ func (p *parser) recvMsg() (pf payloadFormat, msg []byte, err error) {
// encode serializes msg and prepends the message header. If msg is nil, it
// generates the message header of 0 message length.
func encode(c Codec, msg interface{}, pf payloadFormat) ([]byte, error) {
func encode(c Codec, msg interface{}, cp Compressor, cbuf *bytes.Buffer) ([]byte, error) {
var b []byte
var length uint
if msg != nil {
@ -168,6 +247,12 @@ func encode(c Codec, msg interface{}, pf payloadFormat) ([]byte, error) {
if err != nil {
return nil, err
}
if cp != nil {
if err := cp.Do(cbuf, b); err != nil {
return nil, err
}
b = cbuf.Bytes()
}
length = uint(len(b))
}
if length > math.MaxUint32 {
@ -182,7 +267,11 @@ func encode(c Codec, msg interface{}, pf payloadFormat) ([]byte, error) {
var buf = make([]byte, payloadLen+sizeLen+len(b))
// Write payload format
buf[0] = byte(pf)
if cp == nil {
buf[0] = byte(compressionNone)
} else {
buf[0] = byte(compressionMade)
}
// Write length of b into buf
binary.BigEndian.PutUint32(buf[1:], uint32(length))
// Copy encoded msg to buf
@ -191,22 +280,38 @@ func encode(c Codec, msg interface{}, pf payloadFormat) ([]byte, error) {
return buf, nil
}
func recv(p *parser, c Codec, m interface{}) error {
func checkRecvPayload(pf payloadFormat, recvCompress string, dc Decompressor) error {
switch pf {
case compressionNone:
case compressionMade:
if recvCompress == "" {
return transport.StreamErrorf(codes.InvalidArgument, "grpc: invalid grpc-encoding %q with compression enabled", recvCompress)
}
if dc == nil || recvCompress != dc.Type() {
return transport.StreamErrorf(codes.InvalidArgument, "grpc: Decompressor is not installed for grpc-encoding %q", recvCompress)
}
default:
return transport.StreamErrorf(codes.InvalidArgument, "grpc: received unexpected payload format %d", pf)
}
return nil
}
func recv(p *parser, c Codec, s *transport.Stream, dc Decompressor, m interface{}) error {
pf, d, err := p.recvMsg()
if err != nil {
return err
}
switch pf {
case compressionNone:
if err := c.Unmarshal(d, m); err != nil {
if rErr, ok := err.(rpcError); ok {
return rErr
} else {
return Errorf(codes.Internal, "grpc: %v", err)
}
if err := checkRecvPayload(pf, s.RecvCompress(), dc); err != nil {
return err
}
if pf == compressionMade {
d, err = dc.Do(bytes.NewReader(d))
if err != nil {
return transport.StreamErrorf(codes.Internal, "grpc: failed to decompress the received message %v", err)
}
default:
return Errorf(codes.Internal, "gprc: compression is not supported yet.")
}
if err := c.Unmarshal(d, m); err != nil {
return transport.StreamErrorf(codes.Internal, "grpc: failed to unmarshal the received message %v", err)
}
return nil
}
@ -218,7 +323,7 @@ type rpcError struct {
}
func (e rpcError) Error() string {
return fmt.Sprintf("rpc error: code = %d desc = %q", e.code, e.desc)
return fmt.Sprintf("rpc error: code = %d desc = %s", e.code, e.desc)
}
// Code returns the error code for err if it was produced by the rpc system.
@ -304,34 +409,10 @@ func convertCode(err error) codes.Code {
return codes.Unknown
}
const (
// how long to wait after the first failure before retrying
baseDelay = 1.0 * time.Second
// upper bound of backoff delay
maxDelay = 120 * time.Second
// backoff increases by this factor on each retry
backoffFactor = 1.6
// backoff is randomized downwards by this factor
backoffJitter = 0.2
)
func backoff(retries int) (t time.Duration) {
if retries == 0 {
return baseDelay
}
backoff, max := float64(baseDelay), float64(maxDelay)
for backoff < max && retries > 0 {
backoff *= backoffFactor
retries--
}
if backoff > max {
backoff = max
}
// Randomize backoff delays so that if a cluster of requests start at
// the same time, they won't operate in lockstep.
backoff *= 1 + backoffJitter*(rand.Float64()*2-1)
if backoff < 0 {
return 0
}
return time.Duration(backoff)
}
// SupportPackageIsVersion2 is referenced from generated protocol buffer files
// to assert that that code is compatible with this version of the grpc package.
//
// This constant may be renamed in the future if a change in the generated code
// requires a synchronised update of grpc-go and protoc-gen-go. This constant
// should not be referenced from any other code.
const SupportPackageIsVersion2 = true

455
vendor/src/google.golang.org/grpc/server.go vendored
View file

@ -34,10 +34,12 @@
package grpc
import (
"bytes"
"errors"
"fmt"
"io"
"net"
"net/http"
"reflect"
"runtime"
"strings"
@ -45,15 +47,17 @@ import (
"time"
"golang.org/x/net/context"
"golang.org/x/net/http2"
"golang.org/x/net/trace"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/credentials"
"google.golang.org/grpc/grpclog"
"google.golang.org/grpc/internal"
"google.golang.org/grpc/metadata"
"google.golang.org/grpc/transport"
)
type methodHandler func(srv interface{}, ctx context.Context, dec func(interface{}) error) (interface{}, error)
type methodHandler func(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor UnaryServerInterceptor) (interface{}, error)
// MethodDesc represents an RPC service's method specification.
type MethodDesc struct {
@ -81,10 +85,11 @@ type service struct {
// Server is a gRPC server to serve RPC requests.
type Server struct {
opts options
mu sync.Mutex
opts options
mu sync.Mutex // guards following
lis map[net.Listener]bool
conns map[transport.ServerTransport]bool
conns map[io.Closer]bool
m map[string]*service // service name -> service info
events trace.EventLog
}
@ -92,7 +97,12 @@ type Server struct {
type options struct {
creds credentials.Credentials
codec Codec
cp Compressor
dc Decompressor
unaryInt UnaryServerInterceptor
streamInt StreamServerInterceptor
maxConcurrentStreams uint32
useHandlerImpl bool // use http.Handler-based server
}
// A ServerOption sets options.
@ -105,6 +115,18 @@ func CustomCodec(codec Codec) ServerOption {
}
}
func RPCCompressor(cp Compressor) ServerOption {
return func(o *options) {
o.cp = cp
}
}
func RPCDecompressor(dc Decompressor) ServerOption {
return func(o *options) {
o.dc = dc
}
}
// MaxConcurrentStreams returns a ServerOption that will apply a limit on the number
// of concurrent streams to each ServerTransport.
func MaxConcurrentStreams(n uint32) ServerOption {
@ -120,6 +142,29 @@ func Creds(c credentials.Credentials) ServerOption {
}
}
// UnaryInterceptor returns a ServerOption that sets the UnaryServerInterceptor for the
// server. Only one unary interceptor can be installed. The construction of multiple
// interceptors (e.g., chaining) can be implemented at the caller.
func UnaryInterceptor(i UnaryServerInterceptor) ServerOption {
return func(o *options) {
if o.unaryInt != nil {
panic("The unary server interceptor has been set.")
}
o.unaryInt = i
}
}
// StreamInterceptor returns a ServerOption that sets the StreamServerInterceptor for the
// server. Only one stream interceptor can be installed.
func StreamInterceptor(i StreamServerInterceptor) ServerOption {
return func(o *options) {
if o.streamInt != nil {
panic("The stream server interceptor has been set.")
}
o.streamInt = i
}
}
// NewServer creates a gRPC server which has no service registered and has not
// started to accept requests yet.
func NewServer(opt ...ServerOption) *Server {
@ -134,7 +179,7 @@ func NewServer(opt ...ServerOption) *Server {
s := &Server{
lis: make(map[net.Listener]bool),
opts: opts,
conns: make(map[transport.ServerTransport]bool),
conns: make(map[io.Closer]bool),
m: make(map[string]*service),
}
if EnableTracing {
@ -201,9 +246,17 @@ var (
ErrServerStopped = errors.New("grpc: the server has been stopped")
)
func (s *Server) useTransportAuthenticator(rawConn net.Conn) (net.Conn, credentials.AuthInfo, error) {
creds, ok := s.opts.creds.(credentials.TransportAuthenticator)
if !ok {
return rawConn, nil, nil
}
return creds.ServerHandshake(rawConn)
}
// Serve accepts incoming connections on the listener lis, creating a new
// ServerTransport and service goroutine for each. The service goroutines
// read gRPC request and then call the registered handlers to reply to them.
// read gRPC requests and then call the registered handlers to reply to them.
// Service returns when lis.Accept fails.
func (s *Server) Serve(lis net.Listener) error {
s.mu.Lock()
@ -221,74 +274,167 @@ func (s *Server) Serve(lis net.Listener) error {
s.mu.Unlock()
}()
for {
c, err := lis.Accept()
rawConn, err := lis.Accept()
if err != nil {
s.mu.Lock()
s.printf("done serving; Accept = %v", err)
s.mu.Unlock()
return err
}
var authInfo credentials.AuthInfo
if creds, ok := s.opts.creds.(credentials.TransportAuthenticator); ok {
var conn net.Conn
conn, authInfo, err = creds.ServerHandshake(c)
if err != nil {
s.mu.Lock()
s.errorf("ServerHandshake(%q) failed: %v", c.RemoteAddr(), err)
s.mu.Unlock()
grpclog.Println("grpc: Server.Serve failed to complete security handshake.")
continue
}
c = conn
}
s.mu.Lock()
if s.conns == nil {
s.mu.Unlock()
c.Close()
return nil
}
st, err := transport.NewServerTransport("http2", c, s.opts.maxConcurrentStreams, authInfo)
if err != nil {
s.errorf("NewServerTransport(%q) failed: %v", c.RemoteAddr(), err)
s.mu.Unlock()
c.Close()
grpclog.Println("grpc: Server.Serve failed to create ServerTransport: ", err)
continue
}
s.conns[st] = true
s.mu.Unlock()
go func() {
var wg sync.WaitGroup
st.HandleStreams(func(stream *transport.Stream) {
var trInfo *traceInfo
if EnableTracing {
trInfo = &traceInfo{
tr: trace.New("grpc.Recv."+methodFamily(stream.Method()), stream.Method()),
}
trInfo.firstLine.client = false
trInfo.firstLine.remoteAddr = st.RemoteAddr()
stream.TraceContext(trInfo.tr)
if dl, ok := stream.Context().Deadline(); ok {
trInfo.firstLine.deadline = dl.Sub(time.Now())
}
}
wg.Add(1)
go func() {
s.handleStream(st, stream, trInfo)
wg.Done()
}()
})
wg.Wait()
s.mu.Lock()
delete(s.conns, st)
s.mu.Unlock()
}()
// Start a new goroutine to deal with rawConn
// so we don't stall this Accept loop goroutine.
go s.handleRawConn(rawConn)
}
}
func (s *Server) sendResponse(t transport.ServerTransport, stream *transport.Stream, msg interface{}, pf payloadFormat, opts *transport.Options) error {
p, err := encode(s.opts.codec, msg, pf)
// handleRawConn is run in its own goroutine and handles a just-accepted
// connection that has not had any I/O performed on it yet.
func (s *Server) handleRawConn(rawConn net.Conn) {
conn, authInfo, err := s.useTransportAuthenticator(rawConn)
if err != nil {
s.mu.Lock()
s.errorf("ServerHandshake(%q) failed: %v", rawConn.RemoteAddr(), err)
s.mu.Unlock()
grpclog.Printf("grpc: Server.Serve failed to complete security handshake from %q: %v", rawConn.RemoteAddr(), err)
rawConn.Close()
return
}
s.mu.Lock()
if s.conns == nil {
s.mu.Unlock()
conn.Close()
return
}
s.mu.Unlock()
if s.opts.useHandlerImpl {
s.serveUsingHandler(conn)
} else {
s.serveNewHTTP2Transport(conn, authInfo)
}
}
// serveNewHTTP2Transport sets up a new http/2 transport (using the
// gRPC http2 server transport in transport/http2_server.go) and
// serves streams on it.
// This is run in its own goroutine (it does network I/O in
// transport.NewServerTransport).
func (s *Server) serveNewHTTP2Transport(c net.Conn, authInfo credentials.AuthInfo) {
st, err := transport.NewServerTransport("http2", c, s.opts.maxConcurrentStreams, authInfo)
if err != nil {
s.mu.Lock()
s.errorf("NewServerTransport(%q) failed: %v", c.RemoteAddr(), err)
s.mu.Unlock()
c.Close()
grpclog.Println("grpc: Server.Serve failed to create ServerTransport: ", err)
return
}
if !s.addConn(st) {
st.Close()
return
}
s.serveStreams(st)
}
func (s *Server) serveStreams(st transport.ServerTransport) {
defer s.removeConn(st)
defer st.Close()
var wg sync.WaitGroup
st.HandleStreams(func(stream *transport.Stream) {
wg.Add(1)
go func() {
defer wg.Done()
s.handleStream(st, stream, s.traceInfo(st, stream))
}()
})
wg.Wait()
}
var _ http.Handler = (*Server)(nil)
// serveUsingHandler is called from handleRawConn when s is configured
// to handle requests via the http.Handler interface. It sets up a
// net/http.Server to handle the just-accepted conn. The http.Server
// is configured to route all incoming requests (all HTTP/2 streams)
// to ServeHTTP, which creates a new ServerTransport for each stream.
// serveUsingHandler blocks until conn closes.
//
// This codepath is only used when Server.TestingUseHandlerImpl has
// been configured. This lets the end2end tests exercise the ServeHTTP
// method as one of the environment types.
//
// conn is the *tls.Conn that's already been authenticated.
func (s *Server) serveUsingHandler(conn net.Conn) {
if !s.addConn(conn) {
conn.Close()
return
}
defer s.removeConn(conn)
h2s := &http2.Server{
MaxConcurrentStreams: s.opts.maxConcurrentStreams,
}
h2s.ServeConn(conn, &http2.ServeConnOpts{
Handler: s,
})
}
func (s *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
st, err := transport.NewServerHandlerTransport(w, r)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
if !s.addConn(st) {
st.Close()
return
}
defer s.removeConn(st)
s.serveStreams(st)
}
// traceInfo returns a traceInfo and associates it with stream, if tracing is enabled.
// If tracing is not enabled, it returns nil.
func (s *Server) traceInfo(st transport.ServerTransport, stream *transport.Stream) (trInfo *traceInfo) {
if !EnableTracing {
return nil
}
trInfo = &traceInfo{
tr: trace.New("grpc.Recv."+methodFamily(stream.Method()), stream.Method()),
}
trInfo.firstLine.client = false
trInfo.firstLine.remoteAddr = st.RemoteAddr()
stream.TraceContext(trInfo.tr)
if dl, ok := stream.Context().Deadline(); ok {
trInfo.firstLine.deadline = dl.Sub(time.Now())
}
return trInfo
}
func (s *Server) addConn(c io.Closer) bool {
s.mu.Lock()
defer s.mu.Unlock()
if s.conns == nil {
return false
}
s.conns[c] = true
return true
}
func (s *Server) removeConn(c io.Closer) {
s.mu.Lock()
defer s.mu.Unlock()
if s.conns != nil {
delete(s.conns, c)
}
}
func (s *Server) sendResponse(t transport.ServerTransport, stream *transport.Stream, msg interface{}, cp Compressor, opts *transport.Options) error {
var cbuf *bytes.Buffer
if cp != nil {
cbuf = new(bytes.Buffer)
}
p, err := encode(s.opts.codec, msg, cp, cbuf)
if err != nil {
// This typically indicates a fatal issue (e.g., memory
// corruption or hardware faults) the application program
@ -314,97 +460,130 @@ func (s *Server) processUnaryRPC(t transport.ServerTransport, stream *transport.
}
}()
}
p := &parser{s: stream}
p := &parser{r: stream}
for {
pf, req, err := p.recvMsg()
if err == io.EOF {
// The entire stream is done (for unary RPC only).
return err
}
if err == io.ErrUnexpectedEOF {
err = transport.StreamError{Code: codes.Internal, Desc: "io.ErrUnexpectedEOF"}
}
if err != nil {
switch err := err.(type) {
case transport.ConnectionError:
// Nothing to do here.
case transport.StreamError:
if err := t.WriteStatus(stream, err.Code, err.Desc); err != nil {
grpclog.Printf("grpc: Server.processUnaryRPC failed to write status: %v", err)
grpclog.Printf("grpc: Server.processUnaryRPC failed to write status %v", err)
}
default:
panic(fmt.Sprintf("grpc: Unexpected error (%T) from recvMsg: %v", err, err))
}
return err
}
switch pf {
case compressionNone:
statusCode := codes.OK
statusDesc := ""
df := func(v interface{}) error {
if err := s.opts.codec.Unmarshal(req, v); err != nil {
return err
if err := checkRecvPayload(pf, stream.RecvCompress(), s.opts.dc); err != nil {
switch err := err.(type) {
case transport.StreamError:
if err := t.WriteStatus(stream, err.Code, err.Desc); err != nil {
grpclog.Printf("grpc: Server.processUnaryRPC failed to write status %v", err)
}
if trInfo != nil {
trInfo.tr.LazyLog(&payload{sent: false, msg: v}, true)
}
return nil
}
reply, appErr := md.Handler(srv.server, stream.Context(), df)
if appErr != nil {
if err, ok := appErr.(rpcError); ok {
statusCode = err.code
statusDesc = err.desc
} else {
statusCode = convertCode(appErr)
statusDesc = appErr.Error()
}
if trInfo != nil && statusCode != codes.OK {
trInfo.tr.LazyLog(stringer(statusDesc), true)
trInfo.tr.SetError()
default:
if err := t.WriteStatus(stream, codes.Internal, err.Error()); err != nil {
grpclog.Printf("grpc: Server.processUnaryRPC failed to write status %v", err)
}
if err := t.WriteStatus(stream, statusCode, statusDesc); err != nil {
grpclog.Printf("grpc: Server.processUnaryRPC failed to write status: %v", err)
}
return err
}
statusCode := codes.OK
statusDesc := ""
df := func(v interface{}) error {
if pf == compressionMade {
var err error
req, err = s.opts.dc.Do(bytes.NewReader(req))
if err != nil {
if err := t.WriteStatus(stream, codes.Internal, err.Error()); err != nil {
grpclog.Printf("grpc: Server.processUnaryRPC failed to write status %v", err)
}
return err
}
return nil
}
if trInfo != nil {
trInfo.tr.LazyLog(stringer("OK"), false)
}
opts := &transport.Options{
Last: true,
Delay: false,
}
if err := s.sendResponse(t, stream, reply, compressionNone, opts); err != nil {
switch err := err.(type) {
case transport.ConnectionError:
// Nothing to do here.
case transport.StreamError:
statusCode = err.Code
statusDesc = err.Desc
default:
statusCode = codes.Unknown
statusDesc = err.Error()
}
if err := s.opts.codec.Unmarshal(req, v); err != nil {
return err
}
if trInfo != nil {
trInfo.tr.LazyLog(&payload{sent: true, msg: reply}, true)
trInfo.tr.LazyLog(&payload{sent: false, msg: v}, true)
}
return t.WriteStatus(stream, statusCode, statusDesc)
default:
panic(fmt.Sprintf("payload format to be supported: %d", pf))
return nil
}
reply, appErr := md.Handler(srv.server, stream.Context(), df, s.opts.unaryInt)
if appErr != nil {
if err, ok := appErr.(rpcError); ok {
statusCode = err.code
statusDesc = err.desc
} else {
statusCode = convertCode(appErr)
statusDesc = appErr.Error()
}
if trInfo != nil && statusCode != codes.OK {
trInfo.tr.LazyLog(stringer(statusDesc), true)
trInfo.tr.SetError()
}
if err := t.WriteStatus(stream, statusCode, statusDesc); err != nil {
grpclog.Printf("grpc: Server.processUnaryRPC failed to write status: %v", err)
return err
}
return nil
}
if trInfo != nil {
trInfo.tr.LazyLog(stringer("OK"), false)
}
opts := &transport.Options{
Last: true,
Delay: false,
}
if s.opts.cp != nil {
stream.SetSendCompress(s.opts.cp.Type())
}
if err := s.sendResponse(t, stream, reply, s.opts.cp, opts); err != nil {
switch err := err.(type) {
case transport.ConnectionError:
// Nothing to do here.
case transport.StreamError:
statusCode = err.Code
statusDesc = err.Desc
default:
statusCode = codes.Unknown
statusDesc = err.Error()
}
return err
}
if trInfo != nil {
trInfo.tr.LazyLog(&payload{sent: true, msg: reply}, true)
}
return t.WriteStatus(stream, statusCode, statusDesc)
}
}
func (s *Server) processStreamingRPC(t transport.ServerTransport, stream *transport.Stream, srv *service, sd *StreamDesc, trInfo *traceInfo) (err error) {
if s.opts.cp != nil {
stream.SetSendCompress(s.opts.cp.Type())
}
ss := &serverStream{
t: t,
s: stream,
p: &parser{s: stream},
p: &parser{r: stream},
codec: s.opts.codec,
cp: s.opts.cp,
dc: s.opts.dc,
trInfo: trInfo,
}
if ss.cp != nil {
ss.cbuf = new(bytes.Buffer)
}
if trInfo != nil {
trInfo.tr.LazyLog(&trInfo.firstLine, false)
defer func() {
@ -418,10 +597,24 @@ func (s *Server) processStreamingRPC(t transport.ServerTransport, stream *transp
ss.mu.Unlock()
}()
}
if appErr := sd.Handler(srv.server, ss); appErr != nil {
var appErr error
if s.opts.streamInt == nil {
appErr = sd.Handler(srv.server, ss)
} else {
info := &StreamServerInfo{
FullMethod: stream.Method(),
IsClientStream: sd.ClientStreams,
IsServerStream: sd.ServerStreams,
}
appErr = s.opts.streamInt(srv.server, ss, info, sd.Handler)
}
if appErr != nil {
if err, ok := appErr.(rpcError); ok {
ss.statusCode = err.code
ss.statusDesc = err.desc
} else if err, ok := appErr.(transport.StreamError); ok {
ss.statusCode = err.Code
ss.statusDesc = err.Desc
} else {
ss.statusCode = convertCode(appErr)
ss.statusDesc = appErr.Error()
@ -509,8 +702,11 @@ func (s *Server) handleStream(t transport.ServerTransport, stream *transport.Str
}
}
// Stop stops the gRPC server. Once Stop returns, the server stops accepting
// connection requests and closes all the connected connections.
// Stop stops the gRPC server. It immediately closes all open
// connections and listeners.
// It cancels all active RPCs on the server side and the corresponding
// pending RPCs on the client side will get notified by connection
// errors.
func (s *Server) Stop() {
s.mu.Lock()
listeners := s.lis
@ -518,12 +714,14 @@ func (s *Server) Stop() {
cs := s.conns
s.conns = nil
s.mu.Unlock()
for lis := range listeners {
lis.Close()
}
for c := range cs {
c.Close()
}
s.mu.Lock()
if s.events != nil {
s.events.Finish()
@ -532,14 +730,23 @@ func (s *Server) Stop() {
s.mu.Unlock()
}
// TestingCloseConns closes all exiting transports but keeps s.lis accepting new
// connections. This is for test only now.
func (s *Server) TestingCloseConns() {
func init() {
internal.TestingCloseConns = func(arg interface{}) {
arg.(*Server).testingCloseConns()
}
internal.TestingUseHandlerImpl = func(arg interface{}) {
arg.(*Server).opts.useHandlerImpl = true
}
}
// testingCloseConns closes all existing transports but keeps s.lis
// accepting new connections.
func (s *Server) testingCloseConns() {
s.mu.Lock()
for c := range s.conns {
c.Close()
delete(s.conns, c)
}
s.conns = make(map[transport.ServerTransport]bool)
s.mu.Unlock()
}

76
vendor/src/google.golang.org/grpc/stream.go vendored
View file

@ -34,6 +34,7 @@
package grpc
import (
"bytes"
"errors"
"io"
"sync"
@ -46,12 +47,14 @@ import (
"google.golang.org/grpc/transport"
)
type streamHandler func(srv interface{}, stream ServerStream) error
// StreamHandler defines the handler called by gRPC server to complete the
// execution of a streaming RPC.
type StreamHandler func(srv interface{}, stream ServerStream) error
// StreamDesc represents a streaming RPC service's method specification.
type StreamDesc struct {
StreamName string
Handler streamHandler
Handler StreamHandler
// At least one of these is true.
ServerStreams bool
@ -66,18 +69,19 @@ type Stream interface {
// breaks.
// On error, it aborts the stream and returns an RPC status on client
// side. On server side, it simply returns the error to the caller.
// SendMsg is called by generated code.
// SendMsg is called by generated code. Also Users can call SendMsg
// directly when it is really needed in their use cases.
SendMsg(m interface{}) error
// RecvMsg blocks until it receives a message or the stream is
// done. On client side, it returns io.EOF when the stream is done. On
// any other error, it aborts the streama nd returns an RPC status. On
// any other error, it aborts the stream and returns an RPC status. On
// server side, it simply returns the error to the caller.
RecvMsg(m interface{}) error
}
// ClientStream defines the interface a client stream has to satify.
type ClientStream interface {
// Header returns the header metedata received from the server if there
// Header returns the header metadata received from the server if there
// is any. It blocks if the metadata is not ready to read.
Header() (metadata.MD, error)
// Trailer returns the trailer metadata from the server. It must be called
@ -108,12 +112,22 @@ func NewClientStream(ctx context.Context, desc *StreamDesc, cc *ClientConn, meth
callHdr := &transport.CallHdr{
Host: cc.authority,
Method: method,
Flush: desc.ServerStreams && desc.ClientStreams,
}
if cc.dopts.cp != nil {
callHdr.SendCompress = cc.dopts.cp.Type()
}
cs := &clientStream{
desc: desc,
codec: cc.dopts.codec,
cp: cc.dopts.cp,
dc: cc.dopts.dc,
tracing: EnableTracing,
}
if cc.dopts.cp != nil {
callHdr.SendCompress = cc.dopts.cp.Type()
cs.cbuf = new(bytes.Buffer)
}
if cs.tracing {
cs.trInfo.tr = trace.New("grpc.Sent."+methodFamily(method), method)
cs.trInfo.firstLine.client = true
@ -125,16 +139,23 @@ func NewClientStream(ctx context.Context, desc *StreamDesc, cc *ClientConn, meth
}
s, err := t.NewStream(ctx, callHdr)
if err != nil {
cs.finish(err)
return nil, toRPCErr(err)
}
cs.t = t
cs.s = s
cs.p = &parser{s: s}
cs.p = &parser{r: s}
// Listen on ctx.Done() to detect cancellation when there is no pending
// I/O operations on this stream.
go func() {
<-s.Context().Done()
cs.closeTransportStream(transport.ContextErr(s.Context().Err()))
select {
case <-t.Error():
// Incur transport error, simply exit.
case <-s.Context().Done():
err := s.Context().Err()
cs.finish(err)
cs.closeTransportStream(transport.ContextErr(err))
}
}()
return cs, nil
}
@ -146,6 +167,9 @@ type clientStream struct {
p *parser
desc *StreamDesc
codec Codec
cp Compressor
cbuf *bytes.Buffer
dc Decompressor
tracing bool // set to EnableTracing when the clientStream is created.
@ -183,6 +207,9 @@ func (cs *clientStream) SendMsg(m interface{}) (err error) {
cs.mu.Unlock()
}
defer func() {
if err != nil {
cs.finish(err)
}
if err == nil || err == io.EOF {
return
}
@ -191,7 +218,12 @@ func (cs *clientStream) SendMsg(m interface{}) (err error) {
}
err = toRPCErr(err)
}()
out, err := encode(cs.codec, m, compressionNone)
out, err := encode(cs.codec, m, cs.cp, cs.cbuf)
defer func() {
if cs.cbuf != nil {
cs.cbuf.Reset()
}
}()
if err != nil {
return transport.StreamErrorf(codes.Internal, "grpc: %v", err)
}
@ -199,7 +231,7 @@ func (cs *clientStream) SendMsg(m interface{}) (err error) {
}
func (cs *clientStream) RecvMsg(m interface{}) (err error) {
err = recv(cs.p, cs.codec, m)
err = recv(cs.p, cs.codec, cs.s, cs.dc, m)
defer func() {
// err != nil indicates the termination of the stream.
if err != nil {
@ -218,16 +250,17 @@ func (cs *clientStream) RecvMsg(m interface{}) (err error) {
return
}
// Special handling for client streaming rpc.
err = recv(cs.p, cs.codec, m)
err = recv(cs.p, cs.codec, cs.s, cs.dc, m)
cs.closeTransportStream(err)
if err == nil {
return toRPCErr(errors.New("grpc: client streaming protocol violation: get <nil>, want <EOF>"))
}
if err == io.EOF {
if cs.s.StatusCode() == codes.OK {
cs.finish(err)
return nil
}
return Errorf(cs.s.StatusCode(), cs.s.StatusDesc())
return Errorf(cs.s.StatusCode(), "%s", cs.s.StatusDesc())
}
return toRPCErr(err)
}
@ -239,13 +272,18 @@ func (cs *clientStream) RecvMsg(m interface{}) (err error) {
// Returns io.EOF to indicate the end of the stream.
return
}
return Errorf(cs.s.StatusCode(), cs.s.StatusDesc())
return Errorf(cs.s.StatusCode(), "%s", cs.s.StatusDesc())
}
return toRPCErr(err)
}
func (cs *clientStream) CloseSend() (err error) {
err = cs.t.Write(cs.s, nil, &transport.Options{Last: true})
defer func() {
if err != nil {
cs.finish(err)
}
}()
if err == nil || err == io.EOF {
return
}
@ -303,6 +341,9 @@ type serverStream struct {
s *transport.Stream
p *parser
codec Codec
cp Compressor
dc Decompressor
cbuf *bytes.Buffer
statusCode codes.Code
statusDesc string
trInfo *traceInfo
@ -341,7 +382,12 @@ func (ss *serverStream) SendMsg(m interface{}) (err error) {
ss.mu.Unlock()
}
}()
out, err := encode(ss.codec, m, compressionNone)
out, err := encode(ss.codec, m, ss.cp, ss.cbuf)
defer func() {
if ss.cbuf != nil {
ss.cbuf.Reset()
}
}()
if err != nil {
err = transport.StreamErrorf(codes.Internal, "grpc: %v", err)
return err
@ -364,5 +410,5 @@ func (ss *serverStream) RecvMsg(m interface{}) (err error) {
ss.mu.Unlock()
}
}()
return recv(ss.p, ss.codec, m)
return recv(ss.p, ss.codec, ss.s, ss.dc, m)
}

88
vendor/src/google.golang.org/grpc/transport/control.go vendored
View file

@ -56,43 +56,33 @@ type windowUpdate struct {
increment uint32
}
func (windowUpdate) isItem() bool {
return true
}
func (*windowUpdate) item() {}
type settings struct {
ack bool
ss []http2.Setting
}
func (settings) isItem() bool {
return true
}
func (*settings) item() {}
type resetStream struct {
streamID uint32
code http2.ErrCode
}
func (resetStream) isItem() bool {
return true
}
func (*resetStream) item() {}
type flushIO struct {
}
func (flushIO) isItem() bool {
return true
}
func (*flushIO) item() {}
type ping struct {
ack bool
data [8]byte
}
func (ping) isItem() bool {
return true
}
func (*ping) item() {}
// quotaPool is a pool which accumulates the quota and sends it to acquire()
// when it is available.
@ -172,10 +162,6 @@ func (qb *quotaPool) acquire() <-chan int {
type inFlow struct {
// The inbound flow control limit for pending data.
limit uint32
// conn points to the shared connection-level inFlow that is shared
// by all streams on that conn. It is nil for the inFlow on the conn
// directly.
conn *inFlow
mu sync.Mutex
// pendingData is the overall data which have been received but not been
@ -186,75 +172,39 @@ type inFlow struct {
pendingUpdate uint32
}
// onData is invoked when some data frame is received. It increments not only its
// own pendingData but also that of the associated connection-level flow.
// onData is invoked when some data frame is received. It updates pendingData.
func (f *inFlow) onData(n uint32) error {
if n == 0 {
return nil
}
f.mu.Lock()
defer f.mu.Unlock()
if f.pendingData+f.pendingUpdate+n > f.limit {
return fmt.Errorf("recieved %d-bytes data exceeding the limit %d bytes", f.pendingData+f.pendingUpdate+n, f.limit)
}
if f.conn != nil {
if err := f.conn.onData(n); err != nil {
return ConnectionErrorf("%v", err)
}
}
f.pendingData += n
if f.pendingData+f.pendingUpdate > f.limit {
return fmt.Errorf("received %d-bytes data exceeding the limit %d bytes", f.pendingData+f.pendingUpdate, f.limit)
}
return nil
}
// connOnRead updates the connection level states when the application consumes data.
func (f *inFlow) connOnRead(n uint32) uint32 {
if n == 0 || f.conn != nil {
return 0
}
// onRead is invoked when the application reads the data. It returns the window size
// to be sent to the peer.
func (f *inFlow) onRead(n uint32) uint32 {
f.mu.Lock()
defer f.mu.Unlock()
if f.pendingData == 0 {
return 0
}
f.pendingData -= n
f.pendingUpdate += n
if f.pendingUpdate >= f.limit/4 {
ret := f.pendingUpdate
wu := f.pendingUpdate
f.pendingUpdate = 0
return ret
return wu
}
return 0
}
// onRead is invoked when the application reads the data. It returns the window updates
// for both stream and connection level.
func (f *inFlow) onRead(n uint32) (swu, cwu uint32) {
if n == 0 {
return
}
f.mu.Lock()
defer f.mu.Unlock()
if f.pendingData == 0 {
// pendingData has been adjusted by restoreConn.
return
}
f.pendingData -= n
f.pendingUpdate += n
if f.pendingUpdate >= f.limit/4 {
swu = f.pendingUpdate
f.pendingUpdate = 0
}
cwu = f.conn.connOnRead(n)
return
}
// restoreConn is invoked when a stream is terminated. It removes its stake in
// the connection-level flow and resets its own state.
func (f *inFlow) restoreConn() uint32 {
if f.conn == nil {
return 0
}
func (f *inFlow) resetPendingData() uint32 {
f.mu.Lock()
defer f.mu.Unlock()
n := f.pendingData
f.pendingData = 0
f.pendingUpdate = 0
return f.conn.connOnRead(n)
return n
}

383
vendor/src/google.golang.org/grpc/transport/handler_server.go vendored Normal file
View file

@ -0,0 +1,383 @@
/*
* Copyright 2016, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
// This file is the implementation of a gRPC server using HTTP/2 which
// uses the standard Go http2 Server implementation (via the
// http.Handler interface), rather than speaking low-level HTTP/2
// frames itself. It is the implementation of *grpc.Server.ServeHTTP.
package transport
import (
"errors"
"fmt"
"io"
"net"
"net/http"
"strings"
"sync"
"time"
"golang.org/x/net/context"
"golang.org/x/net/http2"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/credentials"
"google.golang.org/grpc/metadata"
"google.golang.org/grpc/peer"
)
// NewServerHandlerTransport returns a ServerTransport handling gRPC
// from inside an http.Handler. It requires that the http Server
// supports HTTP/2.
func NewServerHandlerTransport(w http.ResponseWriter, r *http.Request) (ServerTransport, error) {
if r.ProtoMajor != 2 {
return nil, errors.New("gRPC requires HTTP/2")
}
if r.Method != "POST" {
return nil, errors.New("invalid gRPC request method")
}
if !strings.Contains(r.Header.Get("Content-Type"), "application/grpc") {
return nil, errors.New("invalid gRPC request content-type")
}
if _, ok := w.(http.Flusher); !ok {
return nil, errors.New("gRPC requires a ResponseWriter supporting http.Flusher")
}
if _, ok := w.(http.CloseNotifier); !ok {
return nil, errors.New("gRPC requires a ResponseWriter supporting http.CloseNotifier")
}
st := &serverHandlerTransport{
rw: w,
req: r,
closedCh: make(chan struct{}),
writes: make(chan func()),
}
if v := r.Header.Get("grpc-timeout"); v != "" {
to, err := timeoutDecode(v)
if err != nil {
return nil, StreamErrorf(codes.Internal, "malformed time-out: %v", err)
}
st.timeoutSet = true
st.timeout = to
}
var metakv []string
for k, vv := range r.Header {
k = strings.ToLower(k)
if isReservedHeader(k) {
continue
}
for _, v := range vv {
if k == "user-agent" {
// user-agent is special. Copying logic of http_util.go.
if i := strings.LastIndex(v, " "); i == -1 {
// There is no application user agent string being set
continue
} else {
v = v[:i]
}
}
metakv = append(metakv, k, v)
}
}
st.headerMD = metadata.Pairs(metakv...)
return st, nil
}
// serverHandlerTransport is an implementation of ServerTransport
// which replies to exactly one gRPC request (exactly one HTTP request),
// using the net/http.Handler interface. This http.Handler is guaranteed
// at this point to be speaking over HTTP/2, so it's able to speak valid
// gRPC.
type serverHandlerTransport struct {
rw http.ResponseWriter
req *http.Request
timeoutSet bool
timeout time.Duration
didCommonHeaders bool
headerMD metadata.MD
closeOnce sync.Once
closedCh chan struct{} // closed on Close
// writes is a channel of code to run serialized in the
// ServeHTTP (HandleStreams) goroutine. The channel is closed
// when WriteStatus is called.
writes chan func()
}
func (ht *serverHandlerTransport) Close() error {
ht.closeOnce.Do(ht.closeCloseChanOnce)
return nil
}
func (ht *serverHandlerTransport) closeCloseChanOnce() { close(ht.closedCh) }
func (ht *serverHandlerTransport) RemoteAddr() net.Addr { return strAddr(ht.req.RemoteAddr) }
// strAddr is a net.Addr backed by either a TCP "ip:port" string, or
// the empty string if unknown.
type strAddr string
func (a strAddr) Network() string {
if a != "" {
// Per the documentation on net/http.Request.RemoteAddr, if this is
// set, it's set to the IP:port of the peer (hence, TCP):
// https://golang.org/pkg/net/http/#Request
//
// If we want to support Unix sockets later, we can
// add our own grpc-specific convention within the
// grpc codebase to set RemoteAddr to a different
// format, or probably better: we can attach it to the
// context and use that from serverHandlerTransport.RemoteAddr.
return "tcp"
}
return ""
}
func (a strAddr) String() string { return string(a) }
// do runs fn in the ServeHTTP goroutine.
func (ht *serverHandlerTransport) do(fn func()) error {
select {
case ht.writes <- fn:
return nil
case <-ht.closedCh:
return ErrConnClosing
}
}
func (ht *serverHandlerTransport) WriteStatus(s *Stream, statusCode codes.Code, statusDesc string) error {
err := ht.do(func() {
ht.writeCommonHeaders(s)
// And flush, in case no header or body has been sent yet.
// This forces a separation of headers and trailers if this is the
// first call (for example, in end2end tests's TestNoService).
ht.rw.(http.Flusher).Flush()
h := ht.rw.Header()
h.Set("Grpc-Status", fmt.Sprintf("%d", statusCode))
if statusDesc != "" {
h.Set("Grpc-Message", statusDesc)
}
if md := s.Trailer(); len(md) > 0 {
for k, vv := range md {
for _, v := range vv {
// http2 ResponseWriter mechanism to
// send undeclared Trailers after the
// headers have possibly been written.
h.Add(http2.TrailerPrefix+k, v)
}
}
}
})
close(ht.writes)
return err
}
// writeCommonHeaders sets common headers on the first write
// call (Write, WriteHeader, or WriteStatus).
func (ht *serverHandlerTransport) writeCommonHeaders(s *Stream) {
if ht.didCommonHeaders {
return
}
ht.didCommonHeaders = true
h := ht.rw.Header()
h["Date"] = nil // suppress Date to make tests happy; TODO: restore
h.Set("Content-Type", "application/grpc")
// Predeclare trailers we'll set later in WriteStatus (after the body).
// This is a SHOULD in the HTTP RFC, and the way you add (known)
// Trailers per the net/http.ResponseWriter contract.
// See https://golang.org/pkg/net/http/#ResponseWriter
// and https://golang.org/pkg/net/http/#example_ResponseWriter_trailers
h.Add("Trailer", "Grpc-Status")
h.Add("Trailer", "Grpc-Message")
if s.sendCompress != "" {
h.Set("Grpc-Encoding", s.sendCompress)
}
}
func (ht *serverHandlerTransport) Write(s *Stream, data []byte, opts *Options) error {
return ht.do(func() {
ht.writeCommonHeaders(s)
ht.rw.Write(data)
if !opts.Delay {
ht.rw.(http.Flusher).Flush()
}
})
}
func (ht *serverHandlerTransport) WriteHeader(s *Stream, md metadata.MD) error {
return ht.do(func() {
ht.writeCommonHeaders(s)
h := ht.rw.Header()
for k, vv := range md {
for _, v := range vv {
h.Add(k, v)
}
}
ht.rw.WriteHeader(200)
ht.rw.(http.Flusher).Flush()
})
}
func (ht *serverHandlerTransport) HandleStreams(startStream func(*Stream)) {
// With this transport type there will be exactly 1 stream: this HTTP request.
var ctx context.Context
var cancel context.CancelFunc
if ht.timeoutSet {
ctx, cancel = context.WithTimeout(context.Background(), ht.timeout)
} else {
ctx, cancel = context.WithCancel(context.Background())
}
// requestOver is closed when either the request's context is done
// or the status has been written via WriteStatus.
requestOver := make(chan struct{})
// clientGone receives a single value if peer is gone, either
// because the underlying connection is dead or because the
// peer sends an http2 RST_STREAM.
clientGone := ht.rw.(http.CloseNotifier).CloseNotify()
go func() {
select {
case <-requestOver:
return
case <-ht.closedCh:
case <-clientGone:
}
cancel()
}()
req := ht.req
s := &Stream{
id: 0, // irrelevant
windowHandler: func(int) {}, // nothing
cancel: cancel,
buf: newRecvBuffer(),
st: ht,
method: req.URL.Path,
recvCompress: req.Header.Get("grpc-encoding"),
}
pr := &peer.Peer{
Addr: ht.RemoteAddr(),
}
if req.TLS != nil {
pr.AuthInfo = credentials.TLSInfo{*req.TLS}
}
ctx = metadata.NewContext(ctx, ht.headerMD)
ctx = peer.NewContext(ctx, pr)
s.ctx = newContextWithStream(ctx, s)
s.dec = &recvBufferReader{ctx: s.ctx, recv: s.buf}
// readerDone is closed when the Body.Read-ing goroutine exits.
readerDone := make(chan struct{})
go func() {
defer close(readerDone)
// TODO: minimize garbage, optimize recvBuffer code/ownership
const readSize = 8196
for buf := make([]byte, readSize); ; {
n, err := req.Body.Read(buf)
if n > 0 {
s.buf.put(&recvMsg{data: buf[:n:n]})
buf = buf[n:]
}
if err != nil {
s.buf.put(&recvMsg{err: mapRecvMsgError(err)})
return
}
if len(buf) == 0 {
buf = make([]byte, readSize)
}
}
}()
// startStream is provided by the *grpc.Server's serveStreams.
// It starts a goroutine serving s and exits immediately.
// The goroutine that is started is the one that then calls
// into ht, calling WriteHeader, Write, WriteStatus, Close, etc.
startStream(s)
ht.runStream()
close(requestOver)
// Wait for reading goroutine to finish.
req.Body.Close()
<-readerDone
}
func (ht *serverHandlerTransport) runStream() {
for {
select {
case fn, ok := <-ht.writes:
if !ok {
return
}
fn()
case <-ht.closedCh:
return
}
}
}
// mapRecvMsgError returns the non-nil err into the appropriate
// error value as expected by callers of *grpc.parser.recvMsg.
// In particular, in can only be:
// * io.EOF
// * io.ErrUnexpectedEOF
// * of type transport.ConnectionError
// * of type transport.StreamError
func mapRecvMsgError(err error) error {
if err == io.EOF || err == io.ErrUnexpectedEOF {
return err
}
if se, ok := err.(http2.StreamError); ok {
if code, ok := http2ErrConvTab[se.Code]; ok {
return StreamError{
Code: code,
Desc: se.Error(),
}
}
}
return ConnectionError{Desc: err.Error()}
}

266
vendor/src/google.golang.org/grpc/transport/http2_client.go vendored
View file

@ -50,6 +50,7 @@ import (
"google.golang.org/grpc/credentials"
"google.golang.org/grpc/grpclog"
"google.golang.org/grpc/metadata"
"google.golang.org/grpc/peer"
)
// http2Client implements the ClientTransport interface with HTTP2.
@ -139,29 +140,6 @@ func newHTTP2Client(addr string, opts *ConnectOptions) (_ ClientTransport, err e
conn.Close()
}
}()
// Send connection preface to server.
n, err := conn.Write(clientPreface)
if err != nil {
return nil, ConnectionErrorf("transport: %v", err)
}
if n != len(clientPreface) {
return nil, ConnectionErrorf("transport: preface mismatch, wrote %d bytes; want %d", n, len(clientPreface))
}
framer := newFramer(conn)
if initialWindowSize != defaultWindowSize {
err = framer.writeSettings(true, http2.Setting{http2.SettingInitialWindowSize, uint32(initialWindowSize)})
} else {
err = framer.writeSettings(true)
}
if err != nil {
return nil, ConnectionErrorf("transport: %v", err)
}
// Adjust the connection flow control window if needed.
if delta := uint32(initialConnWindowSize - defaultWindowSize); delta > 0 {
if err := framer.writeWindowUpdate(true, 0, delta); err != nil {
return nil, ConnectionErrorf("transport: %v", err)
}
}
ua := primaryUA
if opts.UserAgent != "" {
ua = opts.UserAgent + " " + ua
@ -177,7 +155,7 @@ func newHTTP2Client(addr string, opts *ConnectOptions) (_ ClientTransport, err e
writableChan: make(chan int, 1),
shutdownChan: make(chan struct{}),
errorChan: make(chan struct{}),
framer: framer,
framer: newFramer(conn),
hBuf: &buf,
hEnc: hpack.NewEncoder(&buf),
controlBuf: newRecvBuffer(),
@ -190,27 +168,49 @@ func newHTTP2Client(addr string, opts *ConnectOptions) (_ ClientTransport, err e
maxStreams: math.MaxInt32,
streamSendQuota: defaultWindowSize,
}
// Start the reader goroutine for incoming message. Each transport has
// a dedicated goroutine which reads HTTP2 frame from network. Then it
// dispatches the frame to the corresponding stream entity.
go t.reader()
// Send connection preface to server.
n, err := t.conn.Write(clientPreface)
if err != nil {
t.Close()
return nil, ConnectionErrorf("transport: %v", err)
}
if n != len(clientPreface) {
t.Close()
return nil, ConnectionErrorf("transport: preface mismatch, wrote %d bytes; want %d", n, len(clientPreface))
}
if initialWindowSize != defaultWindowSize {
err = t.framer.writeSettings(true, http2.Setting{http2.SettingInitialWindowSize, uint32(initialWindowSize)})
} else {
err = t.framer.writeSettings(true)
}
if err != nil {
t.Close()
return nil, ConnectionErrorf("transport: %v", err)
}
// Adjust the connection flow control window if needed.
if delta := uint32(initialConnWindowSize - defaultWindowSize); delta > 0 {
if err := t.framer.writeWindowUpdate(true, 0, delta); err != nil {
t.Close()
return nil, ConnectionErrorf("transport: %v", err)
}
}
go t.controller()
t.writableChan <- 0
// Start the reader goroutine for incoming message. The threading model
// on receiving is that each transport has a dedicated goroutine which
// reads HTTP2 frame from network. Then it dispatches the frame to the
// corresponding stream entity.
go t.reader()
return t, nil
}
func (t *http2Client) newStream(ctx context.Context, callHdr *CallHdr) *Stream {
fc := &inFlow{
limit: initialWindowSize,
conn: t.fc,
}
// TODO(zhaoq): Handle uint32 overflow of Stream.id.
s := &Stream{
id: t.nextID,
method: callHdr.Method,
sendCompress: callHdr.SendCompress,
buf: newRecvBuffer(),
fc: fc,
fc: &inFlow{limit: initialWindowSize},
sendQuotaPool: newQuotaPool(int(t.streamSendQuota)),
headerChan: make(chan struct{}),
}
@ -234,14 +234,20 @@ func (t *http2Client) NewStream(ctx context.Context, callHdr *CallHdr) (_ *Strea
var timeout time.Duration
if dl, ok := ctx.Deadline(); ok {
timeout = dl.Sub(time.Now())
if timeout <= 0 {
return nil, ContextErr(context.DeadlineExceeded)
}
}
select {
case <-ctx.Done():
return nil, ContextErr(ctx.Err())
default:
}
pr := &peer.Peer{
Addr: t.conn.RemoteAddr(),
}
// Attach Auth info if there is any.
if t.authInfo != nil {
ctx = credentials.NewContext(ctx, t.authInfo)
pr.AuthInfo = t.authInfo
}
ctx = peer.NewContext(ctx, pr)
authData := make(map[string]string)
for _, c := range t.authCreds {
// Construct URI required to get auth request metadata.
@ -317,10 +323,15 @@ func (t *http2Client) NewStream(ctx context.Context, callHdr *CallHdr) (_ *Strea
t.hEnc.WriteField(hpack.HeaderField{Name: "user-agent", Value: t.userAgent})
t.hEnc.WriteField(hpack.HeaderField{Name: "te", Value: "trailers"})
if callHdr.SendCompress != "" {
t.hEnc.WriteField(hpack.HeaderField{Name: "grpc-encoding", Value: callHdr.SendCompress})
}
if timeout > 0 {
t.hEnc.WriteField(hpack.HeaderField{Name: "grpc-timeout", Value: timeoutEncode(timeout)})
}
for k, v := range authData {
// Capital header names are illegal in HTTP/2.
k = strings.ToLower(k)
t.hEnc.WriteField(hpack.HeaderField{Name: k, Value: v})
}
var (
@ -344,6 +355,10 @@ func (t *http2Client) NewStream(ctx context.Context, callHdr *CallHdr) (_ *Strea
} else {
endHeaders = true
}
var flush bool
if endHeaders && (hasMD || callHdr.Flush) {
flush = true
}
if first {
// Sends a HeadersFrame to server to start a new stream.
p := http2.HeadersFrameParam{
@ -355,11 +370,11 @@ func (t *http2Client) NewStream(ctx context.Context, callHdr *CallHdr) (_ *Strea
// Do a force flush for the buffered frames iff it is the last headers frame
// and there is header metadata to be sent. Otherwise, there is flushing until
// the corresponding data frame is written.
err = t.framer.writeHeaders(hasMD && endHeaders, p)
err = t.framer.writeHeaders(flush, p)
first = false
} else {
// Sends Continuation frames for the leftover headers.
err = t.framer.writeContinuation(hasMD && endHeaders, s.id, endHeaders, t.hBuf.Next(size))
err = t.framer.writeContinuation(flush, s.id, endHeaders, t.hBuf.Next(size))
}
if err != nil {
t.notifyError(err)
@ -389,8 +404,10 @@ func (t *http2Client) CloseStream(s *Stream, err error) {
// other goroutines.
s.cancel()
s.mu.Lock()
if q := s.fc.restoreConn(); q > 0 {
t.controlBuf.put(&windowUpdate{0, q})
if q := s.fc.resetPendingData(); q > 0 {
if n := t.fc.onRead(q); n > 0 {
t.controlBuf.put(&windowUpdate{0, n})
}
}
if s.state == streamDone {
s.mu.Unlock()
@ -412,6 +429,9 @@ func (t *http2Client) CloseStream(s *Stream, err error) {
// accessed any more.
func (t *http2Client) Close() (err error) {
t.mu.Lock()
if t.state == reachable {
close(t.errorChan)
}
if t.state == closing {
t.mu.Unlock()
return errors.New("transport: Close() was already called")
@ -490,6 +510,10 @@ func (t *http2Client) Write(s *Stream, data []byte, opts *Options) error {
t.framer.adjustNumWriters(1)
// Got some quota. Try to acquire writing privilege on the transport.
if _, err := wait(s.ctx, t.shutdownChan, t.writableChan); err != nil {
if _, ok := err.(StreamError); ok {
// Return the connection quota back.
t.sendQuotaPool.add(len(p))
}
if t.framer.adjustNumWriters(-1) == 0 {
// This writer is the last one in this batch and has the
// responsibility to flush the buffered frames. It queues
@ -499,6 +523,16 @@ func (t *http2Client) Write(s *Stream, data []byte, opts *Options) error {
}
return err
}
select {
case <-s.ctx.Done():
t.sendQuotaPool.add(len(p))
if t.framer.adjustNumWriters(-1) == 0 {
t.controlBuf.put(&flushIO{})
}
t.writableChan <- 0
return ContextErr(s.ctx.Err())
default:
}
if r.Len() == 0 && t.framer.adjustNumWriters(0) == 1 {
// Do a force flush iff this is last frame for the entire gRPC message
// and the caller is the only writer at this moment.
@ -537,47 +571,52 @@ func (t *http2Client) Write(s *Stream, data []byte, opts *Options) error {
func (t *http2Client) getStream(f http2.Frame) (*Stream, bool) {
t.mu.Lock()
defer t.mu.Unlock()
if t.activeStreams == nil {
// The transport is closing.
return nil, false
}
if s, ok := t.activeStreams[f.Header().StreamID]; ok {
return s, true
}
return nil, false
s, ok := t.activeStreams[f.Header().StreamID]
return s, ok
}
// updateWindow adjusts the inbound quota for the stream and the transport.
// Window updates will deliver to the controller for sending when
// the cumulative quota exceeds the corresponding threshold.
func (t *http2Client) updateWindow(s *Stream, n uint32) {
swu, cwu := s.fc.onRead(n)
if swu > 0 {
t.controlBuf.put(&windowUpdate{s.id, swu})
s.mu.Lock()
defer s.mu.Unlock()
if s.state == streamDone {
return
}
if cwu > 0 {
t.controlBuf.put(&windowUpdate{0, cwu})
if w := t.fc.onRead(n); w > 0 {
t.controlBuf.put(&windowUpdate{0, w})
}
if w := s.fc.onRead(n); w > 0 {
t.controlBuf.put(&windowUpdate{s.id, w})
}
}
func (t *http2Client) handleData(f *http2.DataFrame) {
size := len(f.Data())
if err := t.fc.onData(uint32(size)); err != nil {
t.notifyError(ConnectionErrorf("%v", err))
return
}
// Select the right stream to dispatch.
s, ok := t.getStream(f)
if !ok {
if w := t.fc.onRead(uint32(size)); w > 0 {
t.controlBuf.put(&windowUpdate{0, w})
}
return
}
size := len(f.Data())
if size > 0 {
s.mu.Lock()
if s.state == streamDone {
s.mu.Unlock()
// The stream has been closed. Release the corresponding quota.
if w := t.fc.onRead(uint32(size)); w > 0 {
t.controlBuf.put(&windowUpdate{0, w})
}
return
}
if err := s.fc.onData(uint32(size)); err != nil {
if _, ok := err.(ConnectionError); ok {
t.notifyError(err)
return
}
s.mu.Lock()
if s.state == streamDone {
s.mu.Unlock()
return
}
s.state = streamDone
s.statusCode = codes.Internal
s.statusDesc = err.Error()
@ -586,6 +625,7 @@ func (t *http2Client) handleData(f *http2.DataFrame) {
t.controlBuf.put(&resetStream{s.id, http2.ErrCodeFlowControl})
return
}
s.mu.Unlock()
// TODO(bradfitz, zhaoq): A copy is required here because there is no
// guarantee f.Data() is consumed before the arrival of next frame.
// Can this copy be eliminated?
@ -624,9 +664,10 @@ func (t *http2Client) handleRSTStream(f *http2.RSTStreamFrame) {
close(s.headerChan)
s.headerDone = true
}
s.statusCode, ok = http2RSTErrConvTab[http2.ErrCode(f.ErrCode)]
s.statusCode, ok = http2ErrConvTab[http2.ErrCode(f.ErrCode)]
if !ok {
grpclog.Println("transport: http2Client.handleRSTStream found no mapped gRPC status for the received http2 error ", f.ErrCode)
s.statusCode = codes.Unknown
}
s.mu.Unlock()
s.write(recvMsg{err: io.EOF})
@ -667,52 +708,59 @@ func (t *http2Client) handleWindowUpdate(f *http2.WindowUpdateFrame) {
}
}
// operateHeader takes action on the decoded headers. It returns the current
// stream if there are remaining headers on the wire (in the following
// Continuation frame).
func (t *http2Client) operateHeaders(hDec *hpackDecoder, s *Stream, frame headerFrame, endStream bool) (pendingStream *Stream) {
defer func() {
if pendingStream == nil {
hDec.state = decodeState{}
}
}()
endHeaders, err := hDec.decodeClientHTTP2Headers(frame)
if s == nil {
// s has been closed.
return nil
// operateHeaders takes action on the decoded headers.
func (t *http2Client) operateHeaders(frame *http2.MetaHeadersFrame) {
s, ok := t.getStream(frame)
if !ok {
return
}
if err != nil {
s.write(recvMsg{err: err})
var state decodeState
for _, hf := range frame.Fields {
state.processHeaderField(hf)
}
if state.err != nil {
s.write(recvMsg{err: state.err})
// Something wrong. Stops reading even when there is remaining.
return nil
}
if !endHeaders {
return s
return
}
endStream := frame.StreamEnded()
s.mu.Lock()
if !endStream {
s.recvCompress = state.encoding
}
if !s.headerDone {
if !endStream && len(hDec.state.mdata) > 0 {
s.header = hDec.state.mdata
if !endStream && len(state.mdata) > 0 {
s.header = state.mdata
}
close(s.headerChan)
s.headerDone = true
}
if !endStream || s.state == streamDone {
s.mu.Unlock()
return nil
return
}
if len(hDec.state.mdata) > 0 {
s.trailer = hDec.state.mdata
if len(state.mdata) > 0 {
s.trailer = state.mdata
}
s.state = streamDone
s.statusCode = hDec.state.statusCode
s.statusDesc = hDec.state.statusDesc
s.statusCode = state.statusCode
s.statusDesc = state.statusDesc
s.mu.Unlock()
s.write(recvMsg{err: io.EOF})
return nil
}
func handleMalformedHTTP2(s *Stream, err error) {
s.mu.Lock()
if !s.headerDone {
close(s.headerChan)
s.headerDone = true
}
s.mu.Unlock()
s.write(recvMsg{err: err})
}
// reader runs as a separate goroutine in charge of reading data from network
@ -735,25 +783,31 @@ func (t *http2Client) reader() {
}
t.handleSettings(sf)
hDec := newHPACKDecoder()
var curStream *Stream
// loop to keep reading incoming messages on this transport.
for {
frame, err := t.framer.readFrame()
if err != nil {
t.notifyError(err)
return
// Abort an active stream if the http2.Framer returns a
// http2.StreamError. This can happen only if the server's response
// is malformed http2.
if se, ok := err.(http2.StreamError); ok {
t.mu.Lock()
s := t.activeStreams[se.StreamID]
t.mu.Unlock()
if s != nil {
// use error detail to provide better err message
handleMalformedHTTP2(s, StreamErrorf(http2ErrConvTab[se.Code], "%v", t.framer.errorDetail()))
}
continue
} else {
// Transport error.
t.notifyError(err)
return
}
}
switch frame := frame.(type) {
case *http2.HeadersFrame:
// operateHeaders has to be invoked regardless the value of curStream
// because the HPACK decoder needs to be updated using the received
// headers.
curStream, _ = t.getStream(frame)
endStream := frame.Header().Flags.Has(http2.FlagHeadersEndStream)
curStream = t.operateHeaders(hDec, curStream, frame, endStream)
case *http2.ContinuationFrame:
curStream = t.operateHeaders(hDec, curStream, frame, frame.HeadersEnded())
case *http2.MetaHeadersFrame:
t.operateHeaders(frame)
case *http2.DataFrame:
t.handleData(frame)
case *http2.RSTStreamFrame:

175
vendor/src/google.golang.org/grpc/transport/http2_server.go vendored
View file

@ -49,6 +49,7 @@ import (
"google.golang.org/grpc/credentials"
"google.golang.org/grpc/grpclog"
"google.golang.org/grpc/metadata"
"google.golang.org/grpc/peer"
)
// ErrIllegalHeaderWrite indicates that setting header is illegal because of
@ -61,8 +62,8 @@ type http2Server struct {
maxStreamID uint32 // max stream ID ever seen
authInfo credentials.AuthInfo // auth info about the connection
// writableChan synchronizes write access to the transport.
// A writer acquires the write lock by sending a value on writableChan
// and releases it by receiving from writableChan.
// A writer acquires the write lock by receiving a value on writableChan
// and releases it by sending on writableChan.
writableChan chan int
// shutdownChan is closed when Close is called.
// Blocking operations should select on shutdownChan to avoid
@ -135,66 +136,69 @@ func newHTTP2Server(conn net.Conn, maxStreams uint32, authInfo credentials.AuthI
return t, nil
}
// operateHeader takes action on the decoded headers. It returns the current
// stream if there are remaining headers on the wire (in the following
// Continuation frame).
func (t *http2Server) operateHeaders(hDec *hpackDecoder, s *Stream, frame headerFrame, endStream bool, handle func(*Stream)) (pendingStream *Stream) {
defer func() {
if pendingStream == nil {
hDec.state = decodeState{}
}
}()
endHeaders, err := hDec.decodeServerHTTP2Headers(frame)
if s == nil {
// s has been closed.
return nil
// operateHeader takes action on the decoded headers.
func (t *http2Server) operateHeaders(frame *http2.MetaHeadersFrame, handle func(*Stream)) {
buf := newRecvBuffer()
s := &Stream{
id: frame.Header().StreamID,
st: t,
buf: buf,
fc: &inFlow{limit: initialWindowSize},
}
if err != nil {
grpclog.Printf("transport: http2Server.operateHeader found %v", err)
var state decodeState
for _, hf := range frame.Fields {
state.processHeaderField(hf)
}
if err := state.err; err != nil {
if se, ok := err.(StreamError); ok {
t.controlBuf.put(&resetStream{s.id, statusCodeConvTab[se.Code]})
}
return nil
return
}
if endStream {
if frame.StreamEnded() {
// s is just created by the caller. No lock needed.
s.state = streamReadDone
}
if !endHeaders {
return s
}
if hDec.state.timeoutSet {
s.ctx, s.cancel = context.WithTimeout(context.TODO(), hDec.state.timeout)
s.recvCompress = state.encoding
if state.timeoutSet {
s.ctx, s.cancel = context.WithTimeout(context.TODO(), state.timeout)
} else {
s.ctx, s.cancel = context.WithCancel(context.TODO())
}
pr := &peer.Peer{
Addr: t.conn.RemoteAddr(),
}
// Attach Auth info if there is any.
if t.authInfo != nil {
s.ctx = credentials.NewContext(s.ctx, t.authInfo)
pr.AuthInfo = t.authInfo
}
s.ctx = peer.NewContext(s.ctx, pr)
// Cache the current stream to the context so that the server application
// can find out. Required when the server wants to send some metadata
// back to the client (unary call only).
s.ctx = newContextWithStream(s.ctx, s)
// Attach the received metadata to the context.
if len(hDec.state.mdata) > 0 {
s.ctx = metadata.NewContext(s.ctx, hDec.state.mdata)
if len(state.mdata) > 0 {
s.ctx = metadata.NewContext(s.ctx, state.mdata)
}
s.dec = &recvBufferReader{
ctx: s.ctx,
recv: s.buf,
}
s.method = hDec.state.method
s.recvCompress = state.encoding
s.method = state.method
t.mu.Lock()
if t.state != reachable {
t.mu.Unlock()
return nil
return
}
if uint32(len(t.activeStreams)) >= t.maxStreams {
t.mu.Unlock()
t.controlBuf.put(&resetStream{s.id, http2.ErrCodeRefusedStream})
return nil
return
}
s.sendQuotaPool = newQuotaPool(int(t.streamSendQuota))
t.activeStreams[s.id] = s
@ -203,7 +207,6 @@ func (t *http2Server) operateHeaders(hDec *hpackDecoder, s *Stream, frame header
t.updateWindow(s, uint32(n))
}
handle(s)
return nil
}
// HandleStreams receives incoming streams using the given handler. This is
@ -236,16 +239,24 @@ func (t *http2Server) HandleStreams(handle func(*Stream)) {
}
t.handleSettings(sf)
hDec := newHPACKDecoder()
var curStream *Stream
for {
frame, err := t.framer.readFrame()
if err != nil {
if se, ok := err.(http2.StreamError); ok {
t.mu.Lock()
s := t.activeStreams[se.StreamID]
t.mu.Unlock()
if s != nil {
t.closeStream(s)
}
t.controlBuf.put(&resetStream{se.StreamID, se.Code})
continue
}
t.Close()
return
}
switch frame := frame.(type) {
case *http2.HeadersFrame:
case *http2.MetaHeadersFrame:
id := frame.Header().StreamID
if id%2 != 1 || id <= t.maxStreamID {
// illegal gRPC stream id.
@ -254,21 +265,7 @@ func (t *http2Server) HandleStreams(handle func(*Stream)) {
break
}
t.maxStreamID = id
buf := newRecvBuffer()
fc := &inFlow{
limit: initialWindowSize,
conn: t.fc,
}
curStream = &Stream{
id: frame.Header().StreamID,
st: t,
buf: buf,
fc: fc,
}
endStream := frame.Header().Flags.Has(http2.FlagHeadersEndStream)
curStream = t.operateHeaders(hDec, curStream, frame, endStream, handle)
case *http2.ContinuationFrame:
curStream = t.operateHeaders(hDec, curStream, frame, frame.HeadersEnded(), handle)
t.operateHeaders(frame, handle)
case *http2.DataFrame:
t.handleData(frame)
case *http2.RSTStreamFrame:
@ -306,33 +303,51 @@ func (t *http2Server) getStream(f http2.Frame) (*Stream, bool) {
// Window updates will deliver to the controller for sending when
// the cumulative quota exceeds the corresponding threshold.
func (t *http2Server) updateWindow(s *Stream, n uint32) {
swu, cwu := s.fc.onRead(n)
if swu > 0 {
t.controlBuf.put(&windowUpdate{s.id, swu})
s.mu.Lock()
defer s.mu.Unlock()
if s.state == streamDone {
return
}
if cwu > 0 {
t.controlBuf.put(&windowUpdate{0, cwu})
if w := t.fc.onRead(n); w > 0 {
t.controlBuf.put(&windowUpdate{0, w})
}
if w := s.fc.onRead(n); w > 0 {
t.controlBuf.put(&windowUpdate{s.id, w})
}
}
func (t *http2Server) handleData(f *http2.DataFrame) {
size := len(f.Data())
if err := t.fc.onData(uint32(size)); err != nil {
grpclog.Printf("transport: http2Server %v", err)
t.Close()
return
}
// Select the right stream to dispatch.
s, ok := t.getStream(f)
if !ok {
if w := t.fc.onRead(uint32(size)); w > 0 {
t.controlBuf.put(&windowUpdate{0, w})
}
return
}
size := len(f.Data())
if size > 0 {
if err := s.fc.onData(uint32(size)); err != nil {
if _, ok := err.(ConnectionError); ok {
grpclog.Printf("transport: http2Server %v", err)
t.Close()
return
s.mu.Lock()
if s.state == streamDone {
s.mu.Unlock()
// The stream has been closed. Release the corresponding quota.
if w := t.fc.onRead(uint32(size)); w > 0 {
t.controlBuf.put(&windowUpdate{0, w})
}
return
}
if err := s.fc.onData(uint32(size)); err != nil {
s.mu.Unlock()
t.closeStream(s)
t.controlBuf.put(&resetStream{s.id, http2.ErrCodeFlowControl})
return
}
s.mu.Unlock()
// TODO(bradfitz, zhaoq): A copy is required here because there is no
// guarantee f.Data() is consumed before the arrival of next frame.
// Can this copy be eliminated?
@ -441,6 +456,9 @@ func (t *http2Server) WriteHeader(s *Stream, md metadata.MD) error {
t.hBuf.Reset()
t.hEnc.WriteField(hpack.HeaderField{Name: ":status", Value: "200"})
t.hEnc.WriteField(hpack.HeaderField{Name: "content-type", Value: "application/grpc"})
if s.sendCompress != "" {
t.hEnc.WriteField(hpack.HeaderField{Name: "grpc-encoding", Value: s.sendCompress})
}
for k, v := range md {
for _, entry := range v {
t.hEnc.WriteField(hpack.HeaderField{Name: k, Value: entry})
@ -503,6 +521,10 @@ func (t *http2Server) Write(s *Stream, data []byte, opts *Options) error {
// TODO(zhaoq): Support multi-writers for a single stream.
var writeHeaderFrame bool
s.mu.Lock()
if s.state == streamDone {
s.mu.Unlock()
return StreamErrorf(codes.Unknown, "the stream has been done")
}
if !s.headerOk {
writeHeaderFrame = true
s.headerOk = true
@ -515,6 +537,9 @@ func (t *http2Server) Write(s *Stream, data []byte, opts *Options) error {
t.hBuf.Reset()
t.hEnc.WriteField(hpack.HeaderField{Name: ":status", Value: "200"})
t.hEnc.WriteField(hpack.HeaderField{Name: "content-type", Value: "application/grpc"})
if s.sendCompress != "" {
t.hEnc.WriteField(hpack.HeaderField{Name: "grpc-encoding", Value: s.sendCompress})
}
p := http2.HeadersFrameParam{
StreamID: s.id,
BlockFragment: t.hBuf.Bytes(),
@ -567,6 +592,10 @@ func (t *http2Server) Write(s *Stream, data []byte, opts *Options) error {
// Got some quota. Try to acquire writing privilege on the
// transport.
if _, err := wait(s.ctx, t.shutdownChan, t.writableChan); err != nil {
if _, ok := err.(StreamError); ok {
// Return the connection quota back.
t.sendQuotaPool.add(ps)
}
if t.framer.adjustNumWriters(-1) == 0 {
// This writer is the last one in this batch and has the
// responsibility to flush the buffered frames. It queues
@ -576,6 +605,16 @@ func (t *http2Server) Write(s *Stream, data []byte, opts *Options) error {
}
return err
}
select {
case <-s.ctx.Done():
t.sendQuotaPool.add(ps)
if t.framer.adjustNumWriters(-1) == 0 {
t.controlBuf.put(&flushIO{})
}
t.writableChan <- 0
return ContextErr(s.ctx.Err())
default:
}
var forceFlush bool
if r.Len() == 0 && t.framer.adjustNumWriters(0) == 1 && !opts.Last {
forceFlush = true
@ -673,20 +712,22 @@ func (t *http2Server) closeStream(s *Stream) {
t.mu.Lock()
delete(t.activeStreams, s.id)
t.mu.Unlock()
if q := s.fc.restoreConn(); q > 0 {
t.controlBuf.put(&windowUpdate{0, q})
}
// In case stream sending and receiving are invoked in separate
// goroutines (e.g., bi-directional streaming), cancel needs to be
// called to interrupt the potential blocking on other goroutines.
s.cancel()
s.mu.Lock()
if q := s.fc.resetPendingData(); q > 0 {
if w := t.fc.onRead(q); w > 0 {
t.controlBuf.put(&windowUpdate{0, w})
}
}
if s.state == streamDone {
s.mu.Unlock()
return
}
s.state = streamDone
s.mu.Unlock()
// In case stream sending and receiving are invoked in separate
// goroutines (e.g., bi-directional streaming), cancel needs to be
// called to interrupt the potential blocking on other goroutines.
s.cancel()
}
func (t *http2Server) RemoteAddr() net.Addr {

170
vendor/src/google.golang.org/grpc/transport/http_util.go vendored
View file

@ -62,13 +62,14 @@ const (
)
var (
clientPreface = []byte(http2.ClientPreface)
http2RSTErrConvTab = map[http2.ErrCode]codes.Code{
clientPreface = []byte(http2.ClientPreface)
http2ErrConvTab = map[http2.ErrCode]codes.Code{
http2.ErrCodeNo: codes.Internal,
http2.ErrCodeProtocol: codes.Internal,
http2.ErrCodeInternal: codes.Internal,
http2.ErrCodeFlowControl: codes.ResourceExhausted,
http2.ErrCodeSettingsTimeout: codes.Internal,
http2.ErrCodeStreamClosed: codes.Internal,
http2.ErrCodeFrameSize: codes.Internal,
http2.ErrCodeRefusedStream: codes.Unavailable,
http2.ErrCodeCancel: codes.Canceled,
@ -76,6 +77,7 @@ var (
http2.ErrCodeConnect: codes.Internal,
http2.ErrCodeEnhanceYourCalm: codes.ResourceExhausted,
http2.ErrCodeInadequateSecurity: codes.PermissionDenied,
http2.ErrCodeHTTP11Required: codes.FailedPrecondition,
}
statusCodeConvTab = map[codes.Code]http2.ErrCode{
codes.Internal: http2.ErrCodeInternal,
@ -89,6 +91,9 @@ var (
// Records the states during HPACK decoding. Must be reset once the
// decoding of the entire headers are finished.
type decodeState struct {
err error // first error encountered decoding
encoding string
// statusCode caches the stream status received from the trailer
// the server sent. Client side only.
statusCode codes.Code
@ -101,25 +106,11 @@ type decodeState struct {
mdata map[string][]string
}
// An hpackDecoder decodes HTTP2 headers which may span multiple frames.
type hpackDecoder struct {
h *hpack.Decoder
state decodeState
err error // The err when decoding
}
// A headerFrame is either a http2.HeaderFrame or http2.ContinuationFrame.
type headerFrame interface {
Header() http2.FrameHeader
HeaderBlockFragment() []byte
HeadersEnded() bool
}
// isReservedHeader checks whether hdr belongs to HTTP2 headers
// reserved by gRPC protocol. Any other headers are classified as the
// user-specified metadata.
func isReservedHeader(hdr string) bool {
if hdr[0] == ':' {
if hdr != "" && hdr[0] == ':' {
return true
}
switch hdr {
@ -136,98 +127,62 @@ func isReservedHeader(hdr string) bool {
}
}
func newHPACKDecoder() *hpackDecoder {
d := &hpackDecoder{}
d.h = hpack.NewDecoder(http2InitHeaderTableSize, func(f hpack.HeaderField) {
switch f.Name {
case "content-type":
if !strings.Contains(f.Value, "application/grpc") {
d.err = StreamErrorf(codes.FailedPrecondition, "transport: received the unexpected header")
return
}
case "grpc-status":
code, err := strconv.Atoi(f.Value)
if err != nil {
d.err = StreamErrorf(codes.Internal, "transport: malformed grpc-status: %v", err)
return
}
d.state.statusCode = codes.Code(code)
case "grpc-message":
d.state.statusDesc = f.Value
case "grpc-timeout":
d.state.timeoutSet = true
var err error
d.state.timeout, err = timeoutDecode(f.Value)
if err != nil {
d.err = StreamErrorf(codes.Internal, "transport: malformed time-out: %v", err)
return
}
case ":path":
d.state.method = f.Value
default:
if !isReservedHeader(f.Name) {
if f.Name == "user-agent" {
i := strings.LastIndex(f.Value, " ")
if i == -1 {
// There is no application user agent string being set.
return
}
// Extract the application user agent string.
f.Value = f.Value[:i]
}
if d.state.mdata == nil {
d.state.mdata = make(map[string][]string)
}
k, v, err := metadata.DecodeKeyValue(f.Name, f.Value)
if err != nil {
grpclog.Printf("Failed to decode (%q, %q): %v", f.Name, f.Value, err)
func (d *decodeState) setErr(err error) {
if d.err == nil {
d.err = err
}
}
func (d *decodeState) processHeaderField(f hpack.HeaderField) {
switch f.Name {
case "content-type":
if !strings.Contains(f.Value, "application/grpc") {
d.setErr(StreamErrorf(codes.FailedPrecondition, "transport: received the unexpected content-type %q", f.Value))
return
}
case "grpc-encoding":
d.encoding = f.Value
case "grpc-status":
code, err := strconv.Atoi(f.Value)
if err != nil {
d.setErr(StreamErrorf(codes.Internal, "transport: malformed grpc-status: %v", err))
return
}
d.statusCode = codes.Code(code)
case "grpc-message":
d.statusDesc = f.Value
case "grpc-timeout":
d.timeoutSet = true
var err error
d.timeout, err = timeoutDecode(f.Value)
if err != nil {
d.setErr(StreamErrorf(codes.Internal, "transport: malformed time-out: %v", err))
return
}
case ":path":
d.method = f.Value
default:
if !isReservedHeader(f.Name) {
if f.Name == "user-agent" {
i := strings.LastIndex(f.Value, " ")
if i == -1 {
// There is no application user agent string being set.
return
}
d.state.mdata[k] = append(d.state.mdata[k], v)
// Extract the application user agent string.
f.Value = f.Value[:i]
}
if d.mdata == nil {
d.mdata = make(map[string][]string)
}
k, v, err := metadata.DecodeKeyValue(f.Name, f.Value)
if err != nil {
grpclog.Printf("Failed to decode (%q, %q): %v", f.Name, f.Value, err)
return
}
d.mdata[k] = append(d.mdata[k], v)
}
})
return d
}
func (d *hpackDecoder) decodeClientHTTP2Headers(frame headerFrame) (endHeaders bool, err error) {
d.err = nil
_, err = d.h.Write(frame.HeaderBlockFragment())
if err != nil {
err = StreamErrorf(codes.Internal, "transport: HPACK header decode error: %v", err)
}
if frame.HeadersEnded() {
if closeErr := d.h.Close(); closeErr != nil && err == nil {
err = StreamErrorf(codes.Internal, "transport: HPACK decoder close error: %v", closeErr)
}
endHeaders = true
}
if err == nil && d.err != nil {
err = d.err
}
return
}
func (d *hpackDecoder) decodeServerHTTP2Headers(frame headerFrame) (endHeaders bool, err error) {
d.err = nil
_, err = d.h.Write(frame.HeaderBlockFragment())
if err != nil {
err = StreamErrorf(codes.Internal, "transport: HPACK header decode error: %v", err)
}
if frame.HeadersEnded() {
if closeErr := d.h.Close(); closeErr != nil && err == nil {
err = StreamErrorf(codes.Internal, "transport: HPACK decoder close error: %v", closeErr)
}
endHeaders = true
}
if err == nil && d.err != nil {
err = d.err
}
return
}
type timeoutUnit uint8
@ -318,10 +273,11 @@ type framer struct {
func newFramer(conn net.Conn) *framer {
f := &framer{
reader: conn,
reader: bufio.NewReaderSize(conn, http2IOBufSize),
writer: bufio.NewWriterSize(conn, http2IOBufSize),
}
f.fr = http2.NewFramer(f.writer, f.reader)
f.fr.ReadMetaHeaders = hpack.NewDecoder(http2InitHeaderTableSize, nil)
return f
}
@ -449,3 +405,7 @@ func (f *framer) flushWrite() error {
func (f *framer) readFrame() (http2.Frame, error) {
return f.fr.ReadFrame()
}
func (f *framer) errorDetail() error {
return f.fr.ErrorDetail()
}

107
vendor/src/google.golang.org/grpc/transport/transport.go vendored
View file

@ -63,13 +63,11 @@ type recvMsg struct {
err error
}
func (recvMsg) isItem() bool {
return true
}
func (*recvMsg) item() {}
// All items in an out of a recvBuffer should be the same type.
type item interface {
isItem() bool
item()
}
// recvBuffer is an unbounded channel of item.
@ -89,12 +87,14 @@ func newRecvBuffer() *recvBuffer {
func (b *recvBuffer) put(r item) {
b.mu.Lock()
defer b.mu.Unlock()
b.backlog = append(b.backlog, r)
select {
case b.c <- b.backlog[0]:
b.backlog = b.backlog[1:]
default:
if len(b.backlog) == 0 {
select {
case b.c <- r:
return
default:
}
}
b.backlog = append(b.backlog, r)
}
func (b *recvBuffer) load() {
@ -170,11 +170,13 @@ type Stream struct {
ctx context.Context
cancel context.CancelFunc
// method records the associated RPC method of the stream.
method string
buf *recvBuffer
dec io.Reader
fc *inFlow
recvQuota uint32
method string
recvCompress string
sendCompress string
buf *recvBuffer
dec io.Reader
fc *inFlow
recvQuota uint32
// The accumulated inbound quota pending for window update.
updateQuota uint32
// The handler to control the window update procedure for both this
@ -201,6 +203,17 @@ type Stream struct {
statusDesc string
}
// RecvCompress returns the compression algorithm applied to the inbound
// message. It is empty string if there is no compression applied.
func (s *Stream) RecvCompress() string {
return s.recvCompress
}
// SetSendCompress sets the compression algorithm to the stream.
func (s *Stream) SetSendCompress(str string) {
s.sendCompress = str
}
// Header acquires the key-value pairs of header metadata once it
// is available. It blocks until i) the metadata is ready or ii) there is no
// header metadata or iii) the stream is cancelled/expired.
@ -286,20 +299,18 @@ func (s *Stream) Read(p []byte) (n int, err error) {
return
}
type key int
// The key to save transport.Stream in the context.
const streamKey = key(0)
type streamKey struct{}
// newContextWithStream creates a new context from ctx and attaches stream
// to it.
func newContextWithStream(ctx context.Context, stream *Stream) context.Context {
return context.WithValue(ctx, streamKey, stream)
return context.WithValue(ctx, streamKey{}, stream)
}
// StreamFromContext returns the stream saved in ctx.
func StreamFromContext(ctx context.Context) (s *Stream, ok bool) {
s, ok = ctx.Value(streamKey).(*Stream)
s, ok = ctx.Value(streamKey{}).(*Stream)
return
}
@ -339,20 +350,40 @@ func NewClientTransport(target string, opts *ConnectOptions) (ClientTransport, e
// Options provides additional hints and information for message
// transmission.
type Options struct {
// Indicate whether it is the last piece for this stream.
// Last indicates whether this write is the last piece for
// this stream.
Last bool
// The hint to transport impl whether the data could be buffered for
// batching write. Transport impl can feel free to ignore it.
// Delay is a hint to the transport implementation for whether
// the data could be buffered for a batching write. The
// Transport implementation may ignore the hint.
Delay bool
}
// CallHdr carries the information of a particular RPC.
type CallHdr struct {
Host string // peer host
Method string // the operation to perform on the specified host
// Host specifies the peer's host.
Host string
// Method specifies the operation to perform.
Method string
// RecvCompress specifies the compression algorithm applied on
// inbound messages.
RecvCompress string
// SendCompress specifies the compression algorithm applied on
// outbound message.
SendCompress string
// Flush indicates whether a new stream command should be sent
// to the peer without waiting for the first data. This is
// only a hint. The transport may modify the flush decision
// for performance purposes.
Flush bool
}
// ClientTransport is the common interface for all gRPC client side transport
// ClientTransport is the common interface for all gRPC client-side transport
// implementations.
type ClientTransport interface {
// Close tears down this transport. Once it returns, the transport
@ -381,21 +412,33 @@ type ClientTransport interface {
Error() <-chan struct{}
}
// ServerTransport is the common interface for all gRPC server side transport
// ServerTransport is the common interface for all gRPC server-side transport
// implementations.
//
// Methods may be called concurrently from multiple goroutines, but
// Write methods for a given Stream will be called serially.
type ServerTransport interface {
// WriteStatus sends the status of a stream to the client.
WriteStatus(s *Stream, statusCode codes.Code, statusDesc string) error
// Write sends the data for the given stream.
Write(s *Stream, data []byte, opts *Options) error
// WriteHeader sends the header metedata for the given stream.
WriteHeader(s *Stream, md metadata.MD) error
// HandleStreams receives incoming streams using the given handler.
HandleStreams(func(*Stream))
// WriteHeader sends the header metadata for the given stream.
// WriteHeader may not be called on all streams.
WriteHeader(s *Stream, md metadata.MD) error
// Write sends the data for the given stream.
// Write may not be called on all streams.
Write(s *Stream, data []byte, opts *Options) error
// WriteStatus sends the status of a stream to the client.
// WriteStatus is the final call made on a stream and always
// occurs.
WriteStatus(s *Stream, statusCode codes.Code, statusDesc string) error
// Close tears down the transport. Once it is called, the transport
// should not be accessed any more. All the pending streams and their
// handlers will be terminated asynchronously.
Close() error
// RemoteAddr returns the remote network address.
RemoteAddr() net.Addr
}