public bool TrySignalToSatisfyWait(WaitedListNode registeredListNode, bool isAbandonedMutex)
{
s_lock.VerifyIsLocked();
Debug.Assert(_thread != Thread.CurrentThread);
Debug.Assert(registeredListNode != null);
Debug.Assert(registeredListNode.WaitInfo == this);
Debug.Assert(registeredListNode.WaitedObjectIndex >= 0);
Debug.Assert(registeredListNode.WaitedObjectIndex < _waitedCount);
Debug.Assert(_waitedCount > (_isWaitForAll ? 1 : 0));
int signaledWaitedObjectIndex = registeredListNode.WaitedObjectIndex;
bool isWaitForAll = _isWaitForAll;
bool wouldAnyMutexReacquireCountOverflow = false;
if (isWaitForAll)
{
// Determine if all waits would be satisfied
if (!WaitableObject.WouldWaitForAllBeSatisfiedOrAborted(
_thread,
_waitedObjects,
_waitedCount,
signaledWaitedObjectIndex,
ref wouldAnyMutexReacquireCountOverflow,
ref isAbandonedMutex))
{
return(false);
}
}
// The wait would be satisfied. Before making changes to satisfy the wait, acquire the monitor and verify that
// the thread can accept a signal.
_waitMonitor.Acquire();
if (!IsWaiting)
{
_waitMonitor.Release();
return(false);
}
if (isWaitForAll && !wouldAnyMutexReacquireCountOverflow)
{
// All waits would be satisfied, accept the signals
WaitableObject.SatisfyWaitForAll(this, _waitedObjects, _waitedCount, signaledWaitedObjectIndex);
}
UnregisterWait();
Debug.Assert(_waitedObjectIndexThatSatisfiedWait < 0);
if (wouldAnyMutexReacquireCountOverflow)
{
_waitSignalState = WaitSignalState.NotWaiting_SignaledToAbortWaitDueToMaximumMutexReacquireCount;
}
else
{
_waitedObjectIndexThatSatisfiedWait = signaledWaitedObjectIndex;
_waitSignalState =
isAbandonedMutex
? WaitSignalState.NotWaiting_SignaledToSatisfyWaitWithAbandonedMutex
: WaitSignalState.NotWaiting_SignaledToSatisfyWait;
}
_waitMonitor.Signal_Release();
return(!wouldAnyMutexReacquireCountOverflow);
}
