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Will Socket.SendAsync always send all data in the byte[] buffer that the SocketAsyncEventArgs has been assigned with? I’ve tested some code but only on a local network and there it seems to be that way..
Edit:
Ok but does it always send all data before running the completed event?
the only socket.BeginSend did not if I remember right..
It will attempt to send all data, however, from the docs on MSDN:
‘For message-oriented sockets, do not exceed the maximum message size of the underlying Windows sockets service provider. If the data is too long to pass atomically through the underlying service provider, no data is transmitted and the SendAsync method throws a SocketException with the SocketAsyncEventArgs.SocketError set to the native Winsock WSAEMSGSIZE error code (10040).’
There are times when a buffer that is too large should be split up. It depends on the underlying socket implementation.