* Receive data of size len in put that data into the buf param. Using recvmsg
* API. Only use with sockets set in non-blocking mode.
*
* Receive data of size len in put that data into the buf param. Using recvmsg
* API. Only use with sockets set in non-blocking mode.
*
* of the function is that this one does not retry to send on partial sends,
* except if the interruption was caused by a signal (EINTR).
*
* of the function is that this one does not retry to send on partial sends,
* except if the interruption was caused by a signal (EINTR).
*