public BeginRead ( byte buffer, int offset, int count, AsyncCallback callback, object state ) : IAsyncResult | ||
buffer | byte | |
offset | int | |
count | int | |
callback | AsyncCallback | |
state | object | |
return | IAsyncResult |
public override IAsyncResult BeginRead(byte[] buffer, int offset, int count, AsyncCallback callback, object state)
{
if (_isAsync)
return TaskToApm.Begin(ReadAsync(buffer, offset, count, CancellationToken.None), callback, state);
else
return base.BeginRead(buffer, offset, count, callback, state);
}
PipeStream::BeginRead ( byte buffer, int offset, int count, System callback, object state ) : System.IAsyncResult |
public static int Read(PipeStream stream, byte[] buffer, int offset, int count, bool isAsync, TimeoutHelper timeoutHelper) { // 异步时,使用异步方式读取数据 if (isAsync) { IAsyncResult asyncResult = stream.BeginRead(buffer, offset, count, null, null); // 等待 timeoutHelper 计算后的剩余时间,如果在这段时间内没有读到数据,那么将直接返回,这时,由于没有读到数据,返回的数据长度为 0 asyncResult.AsyncWaitHandle.WaitOne(timeoutHelper == null ? 60000 : (int)timeoutHelper.RemainingTime().TotalMilliseconds); if (asyncResult.GetType() == pipeStreamAsyncResultType) { pipeStreamAsyncResult_waitHandle.SetValue(asyncResult, null); } return stream.EndRead(asyncResult); } // 使用系统内置的方式进行同步阻塞式读取,该方法直到读取到数据才返回 return stream.Read(buffer, offset, count); }