/// <summary>
/// Handler executed after execution of the method to which the current custom attribute is applied.
/// </summary>
/// <param name="eventArgs"></param>
public override void OnExit(MethodExecutionArgs eventArgs)
{
object o = eventArgs.Instance ?? eventArgs.Method.DeclaringType;
Monitor.Exit(o);
DeadlockMonitor.ExitAcquired(o, null);
}
/// <inheritdoc />
public void Dispose()
{
switch (this.action)
{
case CookieAction.None:
break;
case CookieAction.ExitReadLock:
[email protected]();
DeadlockMonitor.ExitAcquired(this.parent.@lock, readLock);
break;
case CookieAction.ExitWriteLock:
[email protected]();
DeadlockMonitor.ExitAcquired(this.parent.@lock, writeLock);
break;
case CookieAction.ExitWriteAndUpgradeableReadLock:
[email protected]();
[email protected]();
DeadlockMonitor.ExitAcquired(this.parent.@lock, writeLock);
DeadlockMonitor.ExitAcquired(this.parent.@lock, upgradableReadLock);
break;
case CookieAction.EnterWriteLock:
DeadlockMonitor.EnterWaiting(this.parent.@lock, readLock, this.parent.lockedObject);
DeadlockMonitor.EnterWaiting(this.parent.@lock, writeLock, this.parent.lockedObject);
DeadlockMonitor.EnterWaiting(this.parent.@lock, upgradableReadLock, this.parent.lockedObject);
if ([email protected](WarningTimeout))
{
Debug.Print("Reacquiring a write lock on {0} from thread {1} ({2}) is taking longer than expected.",
this.parent.lockedObject, Thread.CurrentThread.ManagedThreadId, Thread.CurrentThread.Name);
DeadlockMonitor.DetectDeadlocks();
[email protected]();
}
DeadlockMonitor.ConvertWaitingToAcquired(this.parent.@lock, writeLock, this.parent.lockedObject);
DeadlockMonitor.ExitWaiting(this.parent.@lock, readLock);
DeadlockMonitor.ExitWaiting(this.parent.@lock, upgradableReadLock);
break;
case CookieAction.ExitUpgrableReaderLock:
[email protected]();
DeadlockMonitor.ExitAcquired(this.parent.@lock, upgradableReadLock);
break;
}
this.action = CookieAction.None;
GC.SuppressFinalize(this);
}
/// <summary>
/// Acquires an observer lock.
/// </summary>
/// <returns>An object (considered opaque by client code) that should be disposed
/// once the lock is not needed.</returns>
/// <remarks>It is strongly recommended to use the <b>using</b> construct with
/// this method.</remarks>
public Cookie AcquireObserverLock()
{
if (this.@lock == null)
{
return(new Cookie(CookieAction.None, null, null));
}
if ([email protected])
{
[email protected]();
DeadlockMonitor.ExitAcquired(this.@lock, writeLock);
return(new Cookie(CookieAction.EnterWriteLock, this, GetStackTrace()));
}
else
{
return(new Cookie(CookieAction.None, this, GetStackTrace()));
}
}
