moby/daemon/unpause.go

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package daemon
import (
derr "github.com/docker/docker/errors"
)
// ContainerUnpause unpauses a container
func (daemon *Daemon) ContainerUnpause(name string) error {
container, err := daemon.Get(name)
if err != nil {
return err
}
if err := daemon.containerUnpause(container); err != nil {
return derr.ErrorCodeCantUnpause.WithArgs(name, err)
}
return nil
}
// containerUnpause resumes the container execution after the container is paused.
func (daemon *Daemon) containerUnpause(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
}