Amib.Threading.Internal.WorkItem.WaitAll C# (CSharp) 메소드

        internal static bool WaitAll(
            IWaitableResult[] waitableResults,
            int millisecondsTimeout,
            bool exitContext,
            WaitHandle cancelWaitHandle)
        {
            if (0 == waitableResults.Length)
            {
                return true;
            }

            bool success;
            WaitHandle[] waitHandles = new WaitHandle[waitableResults.Length];
            GetWaitHandles(waitableResults, waitHandles);

            if ((null == cancelWaitHandle) && (waitHandles.Length <= 64))
            {
                success = STPEventWaitHandle.WaitAll(waitHandles, millisecondsTimeout, exitContext);
            }
            else
            {
                success = true;
                int millisecondsLeft = millisecondsTimeout;
                Stopwatch stopwatch = Stopwatch.StartNew();

                WaitHandle[] whs;
                if (null != cancelWaitHandle)
                {
                    whs = new WaitHandle[] { null, cancelWaitHandle };
                }
                else
                {
                    whs = new WaitHandle[] { null };
                }

                bool waitInfinitely = (Timeout.Infinite == millisecondsTimeout);
                // Iterate over the wait handles and wait for each one to complete.
                // We cannot use WaitHandle.WaitAll directly, because the cancelWaitHandle
                // won't affect it.
                // Each iteration we update the time left for the timeout.
                for (int i = 0; i < waitableResults.Length; ++i)
                {
                    // WaitAny don't work with negative numbers
                    if (!waitInfinitely && (millisecondsLeft < 0))
                    {
                        success = false;
                        break;
                    }

                    whs[0] = waitHandles[i];
                    int result = STPEventWaitHandle.WaitAny(whs, millisecondsLeft, exitContext);
                    if ((result > 0) || (STPEventWaitHandle.WaitTimeout == result))
                    {
                        success = false;
                        break;
                    }

                    if (!waitInfinitely)
                    {
                        // Update the time left to wait
                        millisecondsLeft = millisecondsTimeout - (int)stopwatch.ElapsedMilliseconds;
                    }
                }
            }
            // Release the wait handles
            ReleaseWaitHandles(waitableResults);

            return success;
        }