// containerPause pauses the container execution without stopping the process. // The execution can be resumed by calling containerUnpause. func (daemon *Daemon) containerPause(container *container.Container) error { container.Lock() defer container.Unlock() // We cannot Pause the container which is not running if !container.Running { return errNotRunning{container.ID} } // We cannot Pause the container which is already paused if container.Paused { return fmt.Errorf("Container %s is already paused", container.ID) } // We cannot Pause the container which is restarting if container.Restarting { return errContainerIsRestarting(container.ID) } if err := daemon.execDriver.Pause(container.Command); err != nil { return fmt.Errorf("Cannot pause container %s: %s", container.ID, err) } container.Paused = true daemon.LogContainerEvent(container, "pause") 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.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) } // We cannot Pause the container which is restarting if container.Restarting { return derr.ErrorCodeContainerRestarting.WithArgs(container.ID) } if err := daemon.execDriver.Pause(container.Command); err != nil { return derr.ErrorCodeCantPause.WithArgs(container.ID, err) } container.Paused = true daemon.LogContainerEvent(container, "pause") return nil }
// containerUnpause resumes the container execution after the container is paused. func (daemon *Daemon) containerUnpause(container *container.Container) error { container.Lock() defer container.Unlock() // We cannot unpause the container which is not running if !container.Running { return derr.ErrorCodeNotRunning.WithArgs(container.ID) } // We cannot unpause the container which is not paused if !container.Paused { return derr.ErrorCodeNotPaused.WithArgs(container.ID) } if err := daemon.execDriver.Unpause(container.Command); err != nil { return err } container.Paused = false daemon.LogContainerEvent(container, "unpause") return nil }