Exemplo n.º 1
0
        public static int SignalAndWait(
            WaitableObject waitableObjectToSignal,
            WaitableObject waitableObjectToWaitOn,
            int timeoutMilliseconds,
            bool interruptible = true,
            bool prioritize    = false)
        {
            Debug.Assert(waitableObjectToSignal != null);
            Debug.Assert(waitableObjectToWaitOn != null);
            Debug.Assert(timeoutMilliseconds >= -1);

            ThreadWaitInfo waitInfo   = Thread.CurrentThread.WaitInfo;
            bool           waitCalled = false;

            s_lock.Acquire();
            try
            {
                // A pending interrupt does not signal the specified handle
                if (interruptible && waitInfo.CheckAndResetPendingInterrupt)
                {
                    throw new ThreadInterruptedException();
                }

                try
                {
                    waitableObjectToSignal.Signal(1);
                }
                catch (SemaphoreFullException ex)
                {
                    throw new InvalidOperationException(SR.Threading_WaitHandleTooManyPosts, ex);
                }
                waitCalled = true;
                return(waitableObjectToWaitOn.Wait_Locked(waitInfo, timeoutMilliseconds, interruptible, prioritize));
            }
            finally
            {
                // Once the wait function is called, it will release the lock
                if (waitCalled)
                {
                    s_lock.VerifyIsNotLocked();
                }
                else
                {
                    s_lock.Release();
                }
            }
        }
Exemplo n.º 2
0
        public static int SignalAndWait(
            WaitableObject waitableObjectToSignal,
            WaitableObject waitableObjectToWaitOn,
            int timeoutMilliseconds,
            bool interruptible = true,
            bool prioritize    = false)
        {
            Debug.Assert(waitableObjectToSignal != null);
            Debug.Assert(waitableObjectToWaitOn != null);
            Debug.Assert(timeoutMilliseconds >= -1);

            ThreadWaitInfo waitInfo   = Thread.CurrentThread.WaitInfo;
            LockHolder     lockHolder = new LockHolder(s_lock);

            try
            {
                // A pending interrupt does not signal the specified handle
                if (interruptible && waitInfo.CheckAndResetPendingInterrupt)
                {
                    lockHolder.Dispose();
                    throw new ThreadInterruptedException();
                }

                try
                {
                    waitableObjectToSignal.Signal(1, ref lockHolder);
                }
                catch (SemaphoreFullException ex)
                {
                    s_lock.VerifyIsNotLocked();
                    throw new InvalidOperationException(SR.Threading_WaitHandleTooManyPosts, ex);
                }
                return(waitableObjectToWaitOn.Wait_Locked(waitInfo, timeoutMilliseconds, interruptible, prioritize, ref lockHolder));
            }
            finally
            {
                lockHolder.Dispose();
            }
        }
Exemplo n.º 3
0
        public static bool SignalAndWait(IntPtr handleToSignal, IntPtr handleToWaitOn, int timeoutMilliseconds)
        {
            Debug.Assert(timeoutMilliseconds >= -1);

            ThreadWaitInfo waitInfo = RuntimeThread.CurrentThread.WaitInfo;

            // A pending interrupt does not signal the specified handle
            if (waitInfo.CheckAndResetPendingInterrupt)
            {
                throw new ThreadInterruptedException();
            }

            WaitableObject waitableObjectToSignal = HandleManager.FromHandle(handleToSignal);
            WaitableObject waitableObjectToWaitOn = HandleManager.FromHandle(handleToWaitOn);

            bool waitCalled = false;

            s_lock.Acquire();
            try
            {
                waitableObjectToSignal.Signal(1);
                waitCalled = true;
                return(waitableObjectToWaitOn.Wait_Locked(waitInfo, timeoutMilliseconds));
            }
            finally
            {
                // Once the wait function is called, it will release the lock
                if (waitCalled)
                {
                    s_lock.VerifyIsNotLocked();
                }
                else
                {
                    s_lock.Release();
                }
            }
        }