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Bug 308404 Access violation [@ ntdll!RtlDeleteCriticalSection+0x0000000f]

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r=darin sr=darin
This commit is contained in:
timeless%mozdev.org 2005-09-14 18:18:43 +00:00
parent 42b6af66a3
commit cba483b7cf
1 changed files with 9 additions and 1 deletions
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10
xpcom/threads/nsThread.cpp
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@ -286,9 +286,17 @@ nsThread::Init(nsIRunnable* runnable,
mDead = PR_FALSE;
mThread = PR_CreateThread(PR_USER_THREAD, Main, this,
priority, scope, state, stackSize);
/* As soon as we PR_Unlock(mStartLock), if mThread was successfully
* created, it could run and exit very quickly. In which case, it
* would null mThread and therefore if we check if (mThread) we could
* confuse a successfully created, yet already exited thread with
* OOM - failure to create the thread. So instead we store a local thr
* which we check to see if we really failed to create the thread.
*/
PRThread *thr = mThread;
PR_Unlock(mStartLock);
if (mThread == nsnull) {
if (thr == nsnull) {
mDead = PR_TRUE; // otherwise cleared in nsThread::Exit
mRunnable = nsnull; // otherwise cleared in nsThread::Main(when done)
PR_DestroyLock(mStartLock);