xs_msg_init3
Initialise empty crossroads message
Usage
int xs_msg_init (xs_msg_t *msg);
Overview
The xs_msg_init() function shall initialise the message object referenced by msg to represent an empty message. This function is most useful when called before receiving a message with xs_recv().
Caution
Never access xs_msg_t members directly, instead always use the xs_msg family of functions.
Caution
The functions xs_msg_init(), xs_msg_init_data() and xs_msg_init_size() are mutually exclusive. Never initialize the same xs_msg_t twice.
Return value
The xs_msg_init() function shall return zero if successful. Otherwise it shall return -1 and set errno to one of the values defined below.
Errors
No errors are defined.
Examples
Receiving a message from a socket.
xs_msg_t msg; rc = xs_msg_init (&msg); assert (rc == 0); rc = xs_recv (socket, &msg, 0); assert (rc == 0);
Notes
- 1.
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mailto:[email protected]
- 2.
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mailto:[email protected]
Releases
Unchanged in 3 releases since Debian 8 (Jessie).