diff options
Diffstat (limited to 'vendor/github.com/Microsoft/hcsshim/process.go')
-rw-r--r-- | vendor/github.com/Microsoft/hcsshim/process.go | 38 |
1 files changed, 32 insertions, 6 deletions
diff --git a/vendor/github.com/Microsoft/hcsshim/process.go b/vendor/github.com/Microsoft/hcsshim/process.go index ca8acbb7c..3362c6833 100644 --- a/vendor/github.com/Microsoft/hcsshim/process.go +++ b/vendor/github.com/Microsoft/hcsshim/process.go @@ -1,7 +1,9 @@ package hcsshim import ( + "context" "io" + "sync" "time" "github.com/Microsoft/hcsshim/internal/hcs" @@ -9,7 +11,10 @@ import ( // ContainerError is an error encountered in HCS type process struct { - p *hcs.Process + p *hcs.Process + waitOnce sync.Once + waitCh chan struct{} + waitErr error } // Pid returns the process ID of the process within the container. @@ -19,7 +24,14 @@ func (process *process) Pid() int { // Kill signals the process to terminate but does not wait for it to finish terminating. func (process *process) Kill() error { - return convertProcessError(process.p.Kill(), process) + found, err := process.p.Kill(context.Background()) + if err != nil { + return convertProcessError(err, process) + } + if !found { + return &ProcessError{Process: process, Err: ErrElementNotFound, Operation: "hcsshim::Process::Kill"} + } + return nil } // Wait waits for the process to exit. @@ -30,7 +42,21 @@ func (process *process) Wait() error { // WaitTimeout waits for the process to exit or the duration to elapse. It returns // false if timeout occurs. func (process *process) WaitTimeout(timeout time.Duration) error { - return convertProcessError(process.p.WaitTimeout(timeout), process) + process.waitOnce.Do(func() { + process.waitCh = make(chan struct{}) + go func() { + process.waitErr = process.Wait() + close(process.waitCh) + }() + }) + t := time.NewTimer(timeout) + defer t.Stop() + select { + case <-t.C: + return &ProcessError{Process: process, Err: ErrTimeout, Operation: "hcsshim::Process::Wait"} + case <-process.waitCh: + return process.waitErr + } } // ExitCode returns the exit code of the process. The process must have @@ -45,14 +71,14 @@ func (process *process) ExitCode() (int, error) { // ResizeConsole resizes the console of the process. func (process *process) ResizeConsole(width, height uint16) error { - return convertProcessError(process.p.ResizeConsole(width, height), process) + return convertProcessError(process.p.ResizeConsole(context.Background(), width, height), process) } // Stdio returns the stdin, stdout, and stderr pipes, respectively. Closing // these pipes does not close the underlying pipes; it should be possible to // call this multiple times to get multiple interfaces. func (process *process) Stdio() (io.WriteCloser, io.ReadCloser, io.ReadCloser, error) { - stdin, stdout, stderr, err := process.p.Stdio() + stdin, stdout, stderr, err := process.p.StdioLegacy() if err != nil { err = convertProcessError(err, process) } @@ -62,7 +88,7 @@ func (process *process) Stdio() (io.WriteCloser, io.ReadCloser, io.ReadCloser, e // CloseStdin closes the write side of the stdin pipe so that the process is // notified on the read side that there is no more data in stdin. func (process *process) CloseStdin() error { - return convertProcessError(process.p.CloseStdin(), process) + return convertProcessError(process.p.CloseStdin(context.Background()), process) } // Close cleans up any state associated with the process but does not kill |