|MSG_WAITALL ||The receive request will complete only when one of the following events occurs: |
Note that if the underlying transport does not support MSG_WAITALL, or if the socket is in a non-blocking mode, then this call will fail with WSAEOPNOTSUPP. Also, if MSG_WAITALL is specified along with MSG_OOB, MSG_PEEK, or MSG_PARTIAL, then this call will fail with WSAEOPNOTSUPP. This flag is not supported on datagram sockets or message-oriented CO sockets.
- The buffer supplied by the caller is completely full.
- The connection has been closed.
- The request has been canceled.