b054569cde
This patch adds pause/unpause to the command line, api, and drivers for use on containers. This is implemented using the cgroups/freeze utility in libcontainer and lxc freeze/unfreeze. Co-Authored-By: Eric Windisch <ewindisch@docker.com> Co-Authored-By: Chris Alfonso <calfonso@redhat.com> Docker-DCO-1.1-Signed-off-by: Ian Main <imain@redhat.com> (github: imain)
90 lines
1.5 KiB
Go
90 lines
1.5 KiB
Go
package daemon
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import (
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"fmt"
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"sync"
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"time"
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"github.com/dotcloud/docker/pkg/units"
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)
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type State struct {
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sync.RWMutex
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Running bool
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Paused bool
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Pid int
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ExitCode int
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StartedAt time.Time
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FinishedAt time.Time
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}
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// String returns a human-readable description of the state
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func (s *State) String() string {
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s.RLock()
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defer s.RUnlock()
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if s.Running {
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if s.Paused {
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return fmt.Sprintf("Up %s (Paused)", units.HumanDuration(time.Now().UTC().Sub(s.StartedAt)))
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}
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return fmt.Sprintf("Up %s", units.HumanDuration(time.Now().UTC().Sub(s.StartedAt)))
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}
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if s.FinishedAt.IsZero() {
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return ""
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}
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return fmt.Sprintf("Exited (%d) %s ago", s.ExitCode, units.HumanDuration(time.Now().UTC().Sub(s.FinishedAt)))
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}
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func (s *State) IsRunning() bool {
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s.RLock()
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defer s.RUnlock()
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return s.Running
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}
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func (s *State) GetExitCode() int {
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s.RLock()
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defer s.RUnlock()
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return s.ExitCode
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}
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func (s *State) SetRunning(pid int) {
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s.Lock()
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defer s.Unlock()
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s.Running = true
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s.Paused = false
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s.ExitCode = 0
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s.Pid = pid
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s.StartedAt = time.Now().UTC()
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}
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func (s *State) SetStopped(exitCode int) {
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s.Lock()
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defer s.Unlock()
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s.Running = false
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s.Pid = 0
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s.FinishedAt = time.Now().UTC()
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s.ExitCode = exitCode
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}
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func (s *State) SetPaused() {
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s.Lock()
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defer s.Unlock()
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s.Paused = true
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}
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func (s *State) SetUnpaused() {
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s.Lock()
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defer s.Unlock()
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s.Paused = false
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}
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func (s *State) IsPaused() bool {
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s.RLock()
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defer s.RUnlock()
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return s.Paused
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}
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