package daemon // import "github.com/docker/docker/daemon" import ( "context" "fmt" "time" ) // ContainerResize changes the size of the TTY of the process running // in the container with the given name to the given height and width. func (daemon *Daemon) ContainerResize(name string, height, width int) error { container, err := daemon.GetContainer(name) if err != nil { return err } container.Lock() tsk, err := container.GetRunningTask() container.Unlock() if err != nil { return err } if err = tsk.Resize(context.Background(), uint32(width), uint32(height)); err == nil { attributes := map[string]string{ "height": fmt.Sprintf("%d", height), "width": fmt.Sprintf("%d", width), } daemon.LogContainerEventWithAttributes(container, "resize", attributes) } return err } // ContainerExecResize changes the size of the TTY of the process // running in the exec with the given name to the given height and // width. func (daemon *Daemon) ContainerExecResize(name string, height, width int) error { ec, err := daemon.getExecConfig(name) if err != nil { return err } // TODO: the timeout is hardcoded here, it would be more flexible to make it // a parameter in resize request context, which would need API changes. timeout := time.NewTimer(10 * time.Second) defer timeout.Stop() select { case <-ec.Started: return ec.Process.Resize(context.Background(), uint32(width), uint32(height)) case <-timeout.C: return fmt.Errorf("timeout waiting for exec session ready") } }