diff options
author | OpenShift Merge Robot <openshift-merge-robot@users.noreply.github.com> | 2019-01-11 05:39:12 -0800 |
---|---|---|
committer | GitHub <noreply@github.com> | 2019-01-11 05:39:12 -0800 |
commit | b3eb23d671425775673f86bd02b9c89ef781f590 (patch) | |
tree | 5f06e4e289f16d9164d692590a3fe6541b5384cf /vendor/github.com/Microsoft/hcsshim/internal/hcs/watcher.go | |
parent | 26f2b7debde313af4a5ae39727c66a3f8fd59be4 (diff) | |
parent | bd40dcfc2bc7c9014ea1f33482fb63aacbcdfe87 (diff) | |
download | podman-b3eb23d671425775673f86bd02b9c89ef781f590.tar.gz podman-b3eb23d671425775673f86bd02b9c89ef781f590.tar.bz2 podman-b3eb23d671425775673f86bd02b9c89ef781f590.zip |
Merge pull request #2102 from vrothberg/vendor-update
vendor: update everything
Diffstat (limited to 'vendor/github.com/Microsoft/hcsshim/internal/hcs/watcher.go')
-rw-r--r-- | vendor/github.com/Microsoft/hcsshim/internal/hcs/watcher.go | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/vendor/github.com/Microsoft/hcsshim/internal/hcs/watcher.go b/vendor/github.com/Microsoft/hcsshim/internal/hcs/watcher.go new file mode 100644 index 000000000..e09dd1334 --- /dev/null +++ b/vendor/github.com/Microsoft/hcsshim/internal/hcs/watcher.go @@ -0,0 +1,33 @@ +package hcs + +import ( + "time" + + "github.com/Microsoft/hcsshim/internal/logfields" + "github.com/Microsoft/hcsshim/internal/timeout" + "github.com/sirupsen/logrus" +) + +// syscallWatcher is used as a very simple goroutine around calls into +// the platform. In some cases, we have seen HCS APIs not returning due to +// various bugs, and the goroutine making the syscall ends up not returning, +// prior to its async callback. By spinning up a syscallWatcher, it allows +// us to at least log a warning if a syscall doesn't complete in a reasonable +// amount of time. +// +// Usage is: +// +// completed := false +// go syscallWatcher(context, &completed) +// <syscall> +// completed = true +// +func syscallWatcher(context logrus.Fields, syscallCompleted *bool) { + time.Sleep(timeout.SyscallWatcher) + if *syscallCompleted { + return + } + logrus.WithFields(context). + WithField(logfields.Timeout, timeout.SyscallWatcher). + Warning("Syscall did not complete within operation timeout. This may indicate a platform issue. If it appears to be making no forward progress, obtain the stacks and see if there is a syscall stuck in the platform API for a significant length of time.") +} |