Windows: Empty Windows Exec Driver

Signed-off-by: John Howard <jhoward@microsoft.com>

daemon/execdriver/windows/unsupported.go

@@ -0,0 +1,13 @@
+// +build !windows
+
+package windows
+
+import (
+	"fmt"
+
+	"github.com/docker/docker/daemon/execdriver"
+)
+
+func NewDriver(root, initPath string) (execdriver.Driver, error) {
+	return nil, fmt.Errorf("Windows driver not supported on non-Windows")
+}

daemon/execdriver/windows/windows.go

@@ -0,0 +1,97 @@
+// +build windows
+
+/*
+ This is the Windows driver for containers.
+
+ TODO Windows: It is currently a placeholder to allow compilation of the
+ daemon. Future PRs will have an implementation of this driver.
+*/
+
+package windows
+
+import (
+	"fmt"
+
+	"github.com/docker/docker/daemon/execdriver"
+)
+
+const (
+	DriverName = "Windows"
+	Version    = "Placeholder"
+)
+
+type activeContainer struct {
+	command *execdriver.Command
+}
+
+type driver struct {
+	root     string
+	initPath string
+}
+
+type info struct {
+	ID     string
+	driver *driver
+}
+
+func NewDriver(root, initPath string) (*driver, error) {
+	return &driver{
+		root:     root,
+		initPath: initPath,
+	}, nil
+}
+
+func (d *driver) Run(c *execdriver.Command, pipes *execdriver.Pipes, startCallback execdriver.StartCallback) (execdriver.ExitStatus, error) {
+	return execdriver.ExitStatus{ExitCode: 0}, nil
+}
+
+func (d *driver) Terminate(p *execdriver.Command) error {
+	return nil
+}
+
+func (d *driver) Kill(p *execdriver.Command, sig int) error {
+	return nil
+}
+
+func kill(ID string, PID int) error {
+	return nil
+}
+
+func (d *driver) Pause(c *execdriver.Command) error {
+	return fmt.Errorf("Windows: Containers cannot be paused")
+}
+
+func (d *driver) Unpause(c *execdriver.Command) error {
+	return fmt.Errorf("Windows: Containers cannot be paused")
+}
+
+func (i *info) IsRunning() bool {
+	return false
+}
+
+func (d *driver) Info(id string) execdriver.Info {
+	return &info{
+		ID:     id,
+		driver: d,
+	}
+}
+
+func (d *driver) Name() string {
+	return fmt.Sprintf("%s Date %s", DriverName, Version)
+}
+
+func (d *driver) GetPidsForContainer(id string) ([]int, error) {
+	return nil, fmt.Errorf("GetPidsForContainer: GetPidsForContainer() not implemented")
+}
+
+func (d *driver) Clean(id string) error {
+	return nil
+}
+
+func (d *driver) Stats(id string) (*execdriver.ResourceStats, error) {
+	return nil, fmt.Errorf("Windows: Stats not implemented")
+}
+
+func (d *driver) Exec(c *execdriver.Command, processConfig *execdriver.ProcessConfig, pipes *execdriver.Pipes, startCallback execdriver.StartCallback) (int, error) {
+	return 0, nil
+}