62 lines
1.7 KiB
Go
62 lines
1.7 KiB
Go
package hcsshim
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import (
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"time"
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"github.com/Sirupsen/logrus"
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)
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func processAsyncHcsResult(err error, resultp *uint16, callbackNumber uintptr, expectedNotification hcsNotification, timeout *time.Duration) error {
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err = processHcsResult(err, resultp)
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if IsPending(err) {
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return waitForNotification(callbackNumber, expectedNotification, timeout)
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}
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return err
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}
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func waitForNotification(callbackNumber uintptr, expectedNotification hcsNotification, timeout *time.Duration) error {
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callbackMapLock.RLock()
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channels := callbackMap[callbackNumber].channels
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callbackMapLock.RUnlock()
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expectedChannel := channels[expectedNotification]
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if expectedChannel == nil {
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logrus.Errorf("unknown notification type in waitForNotification %x", expectedNotification)
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return ErrInvalidNotificationType
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}
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var c <-chan time.Time
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if timeout != nil {
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timer := time.NewTimer(*timeout)
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c = timer.C
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defer timer.Stop()
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}
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select {
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case err, ok := <-expectedChannel:
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if !ok {
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return ErrHandleClose
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}
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return err
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case err, ok := <-channels[hcsNotificationSystemExited]:
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if !ok {
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return ErrHandleClose
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}
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// If the expected notification is hcsNotificationSystemExited which of the two selects
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// chosen is random. Return the raw error if hcsNotificationSystemExited is expected
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if channels[hcsNotificationSystemExited] == expectedChannel {
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return err
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}
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return ErrUnexpectedContainerExit
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case _, ok := <-channels[hcsNotificationServiceDisconnect]:
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if !ok {
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return ErrHandleClose
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}
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// hcsNotificationServiceDisconnect should never be an expected notification
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// it does not need the same handling as hcsNotificationSystemExited
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return ErrUnexpectedProcessAbort
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case <-c:
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return ErrTimeout
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}
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}
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