static private WaitOne ( |
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waitHandle | ||
millisecondsTimeout | int | |
exitContext | bool | |
Результат | bool |
/// <summary> /// Get the result of the work item. /// If the work item didn't run yet then the caller waits for the result, timeout, or cancel. /// In case of error the e argument is filled with the exception /// </summary> /// <returns>The result of the work item</returns> private object GetResult( int millisecondsTimeout, bool exitContext, WaitHandle cancelWaitHandle, out Exception e) { e = null; // Check for cancel if (WorkItemState.Canceled == GetWorkItemState()) { throw new WorkItemCancelException("Work item canceled"); } // Check for completion if (IsCompleted) { e = _exception; return(_result); } // If no cancelWaitHandle is provided if (null == cancelWaitHandle) { WaitHandle wh = GetWaitHandle(); bool timeout = !STPEventWaitHandle.WaitOne(wh, millisecondsTimeout, exitContext); ReleaseWaitHandle(); if (timeout) { throw new WorkItemTimeoutException("Work item timeout"); } } else { WaitHandle wh = GetWaitHandle(); int result = STPEventWaitHandle.WaitAny(new WaitHandle[] { wh, cancelWaitHandle }); ReleaseWaitHandle(); switch (result) { case 0: // The work item signaled // Note that the signal could be also as a result of canceling the // work item (not the get result) break; case 1: case STPEventWaitHandle.WaitTimeout: throw new WorkItemTimeoutException("Work item timeout"); default: Debug.Assert(false); break; } } // Check for cancel if (WorkItemState.Canceled == GetWorkItemState()) { throw new WorkItemCancelException("Work item canceled"); } Debug.Assert(IsCompleted); e = _exception; // Return the result return(_result); }
/// <summary> /// Wait for the thread pool to be idle /// </summary> public override bool WaitForIdle(int millisecondsTimeout) { SmartThreadPool.ValidateWorkItemsGroupWaitForIdle(this); return(STPEventWaitHandle.WaitOne(_isIdleWaitHandle, millisecondsTimeout, false)); }