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miniobject: refuse write when object is shared

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In all cases, refuse to write an object when it is shared by more than one
object (also when the object was locked before).

See https://bugzilla.gnome.org/show_bug.cgi?id=679145
This commit is contained in:
Wim Taymans 2012-07-19 13:20:27 +02:00
parent 8620352efc
commit fd23640001
1 changed files with 4 additions and 3 deletions
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7
gst/gstminiobject.c
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@ -190,10 +190,11 @@ gst_mini_object_lock (GstMiniObject * object, GstLockFlags flags)
}
if (access_mode) {
/* shared counter > 1 and write access is not allowed */
if (state > SHARE_ONE && access_mode & GST_LOCK_FLAG_WRITE)
goto lock_failed;
if ((state & LOCK_FLAG_MASK) == 0) {
/* shared counter > 1 and write access */
if (state > SHARE_ONE && access_mode & GST_LOCK_FLAG_WRITE)
goto lock_failed;
/* nothing mapped, set access_mode */
newstate |= access_mode;
} else {