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Diffstat (limited to 'man/man3/zmq_msg_size.3')
| -rw-r--r-- | man/man3/zmq_msg_size.3 | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/man/man3/zmq_msg_size.3 b/man/man3/zmq_msg_size.3 index d8bbc53..b51d582 100644 --- a/man/man3/zmq_msg_size.3 +++ b/man/man3/zmq_msg_size.3 @@ -4,9 +4,27 @@ zmq_msg_size \- retrieves size of the message content .SH SYNOPSIS .B size_t zmq_msg_size (zmq_msg_t *msg); .SH DESCRIPTION +Returns size of the message data. Always use this function to get the size, +never use +.IR zmq_msg_t +members directly. .SH RETURN VALUE +Size of the message data (bytes). .SH ERRORS +No errors are defined. .SH EXAMPLE +.nf +zmq_msg_t msg; +rc = zmq_msg_init (&msg); +assert (rc == 0); +rc = zmq_recv (s, &msg, 0); +assert (rc == 0); +size_t msg_size = zmq_msg_size (&msg); +.fi .SH SEE ALSO +.BR zmq_msg_init (3) +.BR zmq_msg_init_size (3) +.BR zmq_msg_init_data (3) +.BR zmq_msg_close (3) .SH AUTHOR Martin Sustrik <sustrik at 250bpm dot com> |