diff options
Diffstat (limited to 'cmd/podman/utils.go')
| -rw-r--r-- | cmd/podman/utils.go | 26 |
1 files changed, 21 insertions, 5 deletions
diff --git a/cmd/podman/utils.go b/cmd/podman/utils.go index 48b30d274..227426c18 100644 --- a/cmd/podman/utils.go +++ b/cmd/podman/utils.go @@ -25,7 +25,12 @@ func attachCtr(ctr *libpod.Container, stdout, stderr, stdin *os.File, detachKeys if haveTerminal && ctr.Spec().Process.Terminal { logrus.Debugf("Handling terminal attach") - resizeTty(resize) + resizeTerminate := make(chan interface{}) + defer func() { + resizeTerminate <- true + close(resizeTerminate) + }() + resizeTty(resize, resizeTerminate) oldTermState, err := term.SaveState(os.Stdin.Fd()) if err != nil { @@ -76,7 +81,12 @@ func startAttachCtr(ctr *libpod.Container, stdout, stderr, stdin *os.File, detac if haveTerminal && ctr.Spec().Process.Terminal { logrus.Debugf("Handling terminal attach") - resizeTty(resize) + resizeTerminate := make(chan interface{}) + defer func() { + resizeTerminate <- true + close(resizeTerminate) + }() + resizeTty(resize, resizeTerminate) oldTermState, err := term.SaveState(os.Stdin.Fd()) if err != nil { @@ -131,7 +141,7 @@ func startAttachCtr(ctr *libpod.Container, stdout, stderr, stdin *os.File, detac } // Helper for prepareAttach - set up a goroutine to generate terminal resize events -func resizeTty(resize chan remotecommand.TerminalSize) { +func resizeTty(resize chan remotecommand.TerminalSize, resizeTerminate chan interface{}) { sigchan := make(chan os.Signal, 1) gosignal.Notify(sigchan, signal.SIGWINCH) sendUpdate := func() { @@ -150,8 +160,14 @@ func resizeTty(resize chan remotecommand.TerminalSize) { // Update the terminal size immediately without waiting // for a SIGWINCH to get the correct initial size. sendUpdate() - for range sigchan { - sendUpdate() + for { + select { + case <-resizeTerminate: + return + + case <-sigchan: + sendUpdate() + } } }() } |