func waitForExit(c types.APIClient, events types.API_EventsClient, id, pid string, closer func()) {
timestamp := time.Now()
for {
e, err := events.Recv()
if err != nil {
if grpc.ErrorDesc(err) == transport.ErrConnClosing.Desc {
closer()
os.Exit(128 + int(syscall.SIGHUP))
}
time.Sleep(1 * time.Second)
tsp, err := ptypes.TimestampProto(timestamp)
if err != nil {
closer()
fmt.Fprintf(os.Stderr, "%s", err.Error())
os.Exit(1)
}
events, _ = c.Events(netcontext.Background(), &types.EventsRequest{Timestamp: tsp})
continue
}
timestamp, err = ptypes.Timestamp(e.Timestamp)
if e.Id == id && e.Type == "exit" && e.Pid == pid {
closer()
os.Exit(int(e.Status))
}
}
}
func (r *remote) handleEventStream(events containerd.API_EventsClient) {
live := false
for {
e, err := events.Recv()
if err != nil {
if grpc.ErrorDesc(err) == transport.ErrConnClosing.Desc &&
r.closeManually {
// ignore error if grpc remote connection is closed manually
return
}
logrus.Errorf("failed to receive event from containerd: %v", err)
go r.startEventsMonitor()
return
}
if live == false {
logrus.Debugf("received past containerd event: %#v", e)
// Pause/Resume events should never happens after exit one
switch e.Type {
case StateExit:
r.pastEvents[e.Id] = e
case StatePause:
r.pastEvents[e.Id] = e
case StateResume:
r.pastEvents[e.Id] = e
case stateLive:
live = true
r.updateEventTimestamp(time.Unix(int64(e.Timestamp), 0))
}
} else {
logrus.Debugf("received containerd event: %#v", e)
var container *container
var c *client
r.RLock()
for _, c = range r.clients {
container, err = c.getContainer(e.Id)
if err == nil {
break
}
}
r.RUnlock()
if container == nil {
logrus.Errorf("no state for container: %q", err)
continue
}
if err := container.handleEvent(e); err != nil {
logrus.Errorf("error processing state change for %s: %v", e.Id, err)
}
r.updateEventTimestamp(time.Unix(int64(e.Timestamp), 0))
}
}
}
func waitForExit(c types.APIClient, events types.API_EventsClient, id, pid string, closer func()) {
timestamp := uint64(time.Now().Unix())
for {
e, err := events.Recv()
if err != nil {
time.Sleep(1 * time.Second)
events, _ = c.Events(netcontext.Background(), &types.EventsRequest{Timestamp: timestamp})
continue
}
timestamp = e.Timestamp
if e.Id == id && e.Type == "exit" && e.Pid == pid {
closer()
os.Exit(int(e.Status))
}
}
}
func (r *remote) handleEventStream(events containerd.API_EventsClient) {
for {
e, err := events.Recv()
if err != nil {
if grpc.ErrorDesc(err) == transport.ErrConnClosing.Desc &&
r.closeManually {
// ignore error if grpc remote connection is closed manually
return
}
logrus.Errorf("libcontainerd: failed to receive event from containerd: %v", err)
go r.startEventsMonitor()
return
}
logrus.Debugf("libcontainerd: received containerd event: %#v", e)
var container *container
var c *client
r.RLock()
for _, c = range r.clients {
container, err = c.getContainer(e.Id)
if err == nil {
break
}
}
r.RUnlock()
if container == nil {
logrus.Warnf("libcontainerd: unknown container %s", e.Id)
continue
}
if err := container.handleEvent(e); err != nil {
logrus.Errorf("libcontainerd: error processing state change for %s: %v", e.Id, err)
}
tsp, err := ptypes.Timestamp(e.Timestamp)
if err != nil {
logrus.Errorf("libcontainerd: failed to convert event timestamp: %q", err)
continue
}
r.updateEventTimestamp(tsp)
}
}
// ContainerdEventsHandler will process all events coming from
// containerd. If a filter as been register for a given container id
// via `SetContainerEventFilter()`, it will be invoked every time an
// event for that id is received
func (cs *ContainerdSuite) ContainerdEventsHandler(events types.API_EventsClient) {
timestamp := uint64(time.Now().Unix())
for {
e, err := events.Recv()
if err != nil {
time.Sleep(1 * time.Second)
events, _ = cs.grpcClient.Events(context.Background(), &types.EventsRequest{Timestamp: timestamp})
continue
}
timestamp = e.Timestamp
cs.eventFiltersMutex.Lock()
if f, ok := cs.eventFilters[e.Id]; ok {
f(e)
if e.Type == "exit" && e.Pid == "init" {
delete(cs.eventFilters, e.Id)
}
}
cs.eventFiltersMutex.Unlock()
}
}
// ContainerdEventsHandler will process all events coming from
// containerd. If a filter as been register for a given container id
// via `SetContainerEventFilter()`, it will be invoked every time an
// event for that id is received
func (cs *ContainerdSuite) ContainerdEventsHandler(events types.API_EventsClient) {
for {
e, err := events.Recv()
if err != nil {
// If daemon died or exited, return
if strings.Contains(err.Error(), "transport is closing") {
break
}
time.Sleep(1 * time.Second)
events, _ = cs.grpcClient.Events(context.Background(), &types.EventsRequest{Timestamp: cs.lastEventTs})
continue
}
cs.lastEventTs = e.Timestamp
cs.eventFiltersMutex.Lock()
if f, ok := cs.eventFilters[e.Id]; ok {
f(e)
if e.Type == "exit" && e.Pid == "init" {
delete(cs.eventFilters, e.Id)
}
}
cs.eventFiltersMutex.Unlock()
}
}
