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-rw-r--r--runsc/container/container.go1
-rw-r--r--runsc/container/multi_container_test.go53
2 files changed, 11 insertions, 43 deletions
diff --git a/runsc/container/container.go b/runsc/container/container.go
index f3d990cfc..418a27beb 100644
--- a/runsc/container/container.go
+++ b/runsc/container/container.go
@@ -80,6 +80,7 @@ func validateID(id string) error {
// - It calls 'runsc delete'. runc implementation kills --all SIGKILL once
// again just to be sure, waits, and then proceeds with remaining teardown.
//
+// Container is thread-unsafe.
type Container struct {
// ID is the container ID.
ID string `json:"id"`
diff --git a/runsc/container/multi_container_test.go b/runsc/container/multi_container_test.go
index cadc63bf3..45d4e6e6e 100644
--- a/runsc/container/multi_container_test.go
+++ b/runsc/container/multi_container_test.go
@@ -301,54 +301,21 @@ func TestMultiContainerWait(t *testing.T) {
}
defer cleanup()
- // Check via ps that multiple processes are running.
- expectedPL := []*control.Process{
- newProcessBuilder().PID(2).PPID(0).Cmd("sleep").Process(),
- }
- if err := waitForProcessList(containers[1], expectedPL); err != nil {
- t.Errorf("failed to wait for sleep to start: %v", err)
- }
-
- // Wait on the short lived container from multiple goroutines.
- wg := sync.WaitGroup{}
- for i := 0; i < 3; i++ {
- wg.Add(1)
- go func(c *Container) {
- defer wg.Done()
- if ws, err := c.Wait(); err != nil {
- t.Errorf("failed to wait for process %s: %v", c.Spec.Process.Args, err)
- } else if es := ws.ExitStatus(); es != 0 {
- t.Errorf("process %s exited with non-zero status %d", c.Spec.Process.Args, es)
- }
- if _, err := c.Wait(); err != nil {
- t.Errorf("wait for stopped container %s shouldn't fail: %v", c.Spec.Process.Args, err)
- }
- }(containers[1])
+ // Check that we can wait for the sub-container.
+ c := containers[1]
+ if ws, err := c.Wait(); err != nil {
+ t.Errorf("failed to wait for process %s: %v", c.Spec.Process.Args, err)
+ } else if es := ws.ExitStatus(); es != 0 {
+ t.Errorf("process %s exited with non-zero status %d", c.Spec.Process.Args, es)
}
-
- // Also wait via PID.
- for i := 0; i < 3; i++ {
- wg.Add(1)
- go func(c *Container) {
- defer wg.Done()
- const pid = 2
- if ws, err := c.WaitPID(pid); err != nil {
- t.Errorf("failed to wait for PID %d: %v", pid, err)
- } else if es := ws.ExitStatus(); es != 0 {
- t.Errorf("PID %d exited with non-zero status %d", pid, es)
- }
- if _, err := c.WaitPID(pid); err == nil {
- t.Errorf("wait for stopped PID %d should fail", pid)
- }
- }(containers[1])
+ if _, err := c.Wait(); err != nil {
+ t.Errorf("wait for stopped container %s shouldn't fail: %v", c.Spec.Process.Args, err)
}
- wg.Wait()
-
// After Wait returns, ensure that the root container is running and
// the child has finished.
- expectedPL = []*control.Process{
- newProcessBuilder().Cmd("sleep").Process(),
+ expectedPL := []*control.Process{
+ newProcessBuilder().Cmd("sleep").PID(1).Process(),
}
if err := waitForProcessList(containers[0], expectedPL); err != nil {
t.Errorf("failed to wait for %q to start: %v", strings.Join(containers[0].Spec.Process.Args, " "), err)