[Bug 737999] New: systemclock: multi-thread entry status issue

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=737999
  GStreamer | gstreamer (core) | 1.4.3

           Summary: systemclock: multi-thread entry status issue
    Classification: Platform
           Product: GStreamer
           Version: 1.4.3
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gstreamer (core)
        AssignedTo: gstreamer-bugs at lists.freedesktop.org
        ReportedBy: nicolas.huet at parrot.com
         QAContact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---


Created an attachment (id=287844)
 --> (https://bugzilla.gnome.org/attachment.cgi?id=287844)
test file to reproduce the issue

Running two threads, one executing the timer and one unscheduling it, the
unscheduled status set by the second thread is sometimes overwritten by the
first one.

I have attached a C test file to reproduce the issue

Here is the log I have with the small test application:
** Message: set timer
** Message: task GST_CLOCK_EARLY
** Message: unschedule current timer
** Message: task GST_CLOCK_UNSCHEDULED
** Message: set timer
** Message: task GST_CLOCK_EARLY
** Message: unschedule current timer
** Message: task GST_CLOCK_OK
** Message: task GST_CLOCK_OK
** Message: task GST_CLOCK_OK

Once the status is overwritten, I do not receive anymore the
GST_CLOCK_UNSCHEDULED.

I have attached the patch that fix this issue.

-- 
Configure bugmail: https://bugzilla.gnome.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the QA contact for the bug.
You are the assignee for the bug.