/// <summary>
/// Acquires a reader 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 AcquireReadLock()
{
if (this.@lock == null)
{
return(new Cookie(CookieAction.None, null, null));
}
CookieAction action;
if ([email protected] && [email protected] && [email protected])
{
action = CookieAction.ExitReadLock;
DeadlockMonitor.EnterWaiting(@lock, writeLock, lockedObject);
if ([email protected](WarningTimeout))
{
Debug.Print("Acquiring a read lock on {0} from thread {1} ({2}) is taking longer than expected.",
lockedObject, Thread.CurrentThread.ManagedThreadId, Thread.CurrentThread.Name);
DeadlockMonitor.DetectDeadlocks();
@lock.EnterReadLock();
}
DeadlockMonitor.ExitWaiting(@lock, writeLock);
DeadlockMonitor.EnterAcquired(@lock, readLock, lockedObject);
}
else
{
action = CookieAction.None;
}
return(new Cookie(action, this, GetStackTrace()));
}
