docker/daemon/pause.go

44 строки
1.0 KiB
Go
Исходник Обычный вид История

package daemon
import (
derr "github.com/docker/docker/errors"
)
// ContainerPause pauses a container
func (daemon *Daemon) ContainerPause(name string) error {
container, err := daemon.Get(name)
if err != nil {
return err
}
if err := daemon.containerPause(container); err != nil {
return derr.ErrorCodePauseError.WithArgs(name, err)
}
return nil
}
// containerPause pauses the container execution without stopping the process.
// The execution can be resumed by calling containerUnpause.
func (daemon *Daemon) containerPause(container *Container) error {
container.Lock()
defer container.Unlock()
// We cannot Pause the container which is not running
if !container.Running {
return derr.ErrorCodeNotRunning.WithArgs(container.ID)
}
// We cannot Pause the container which is already paused
if container.Paused {
return derr.ErrorCodeAlreadyPaused.WithArgs(container.ID)
}
if err := daemon.execDriver.Pause(container.command); err != nil {
return err
}
container.Paused = true
daemon.LogContainerEvent(container, "pause")
return nil
}