mirror of
https://github.com/zeromq/libzmq.git
synced 2024-12-13 18:55:10 +01:00
31 lines
730 B
Groff
31 lines
730 B
Groff
.TH zmq_msg_size 3 "" "(c)2007-2009 FastMQ Inc." "0MQ User Manuals"
|
|
.SH NAME
|
|
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>
|