Files
docker-cli/components/engine/daemon/pause.go
Zhang Wei 68f96de053 Remove redundant error message
Currently some commands including `kill`, `pause`, `restart`, `rm`,
`rmi`, `stop`, `unpause`, `udpate`, `wait` will print a lot of error
message on client side, with a lot of redundant messages, this commit is
trying to remove the unuseful and redundant information for user.

Signed-off-by: Zhang Wei <zhangwei555@huawei.com>
Upstream-commit: 894266c1bbdfeb53bf278f3cb762945bac69e592
Component: engine
2016-02-03 15:45:20 +08:00

45 lines
1.1 KiB
Go

package daemon
import (
"github.com/docker/docker/container"
derr "github.com/docker/docker/errors"
)
// ContainerPause pauses a container
func (daemon *Daemon) ContainerPause(name string) error {
container, err := daemon.GetContainer(name)
if err != nil {
return err
}
if err := daemon.containerPause(container); err != nil {
return 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.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 derr.ErrorCodeCantPause.WithArgs(container.ID, err)
}
container.Paused = true
daemon.LogContainerEvent(container, "pause")
return nil
}