mirror of
https://github.com/zeromq/libzmq.git
synced 2024-12-13 10:52:56 +01:00
b6ca9b2983
* migrate from the old, unmaintained "asciidoc-py" tool to the new "asciidoctor" generator * migrate from asciidoc-py syntax to the modern Asciidoc syntax (especially page titles and section titles) * remove the need of "xmlto" utility to create the manpage output; use asciidoctor for that * add HTML output support to the doc/Makefile by using asciidoctor * change API documentation files extension from .txt to .adoc to make it more explicit that they are Asciidoc-encoded (as a bonus several IDE plugins will autodetect the .adoc format as Asciidoc) * remove asciidoc.conf: asciidoctor does not support that; this also required replacing the macro linkzmq into all documentation pages * add a new Github action CI do deploy to Github Pages the static HTMLs produced by Asciidoctors * removed references to the "xmlto" and "a2x" tools from the build and packaging systems: Asciidoctor can convert the documentation directly to e.g. pdf (via extended converters) and anyway there was no code/target for using "xmlto" and "a2x" tools anyway
57 lines
1.3 KiB
Plaintext
57 lines
1.3 KiB
Plaintext
= zmq_msg_init(3)
|
|
|
|
|
|
== NAME
|
|
zmq_msg_init - initialise empty 0MQ message
|
|
|
|
|
|
== SYNOPSIS
|
|
*int zmq_msg_init (zmq_msg_t '*msg');*
|
|
|
|
|
|
== DESCRIPTION
|
|
The _zmq_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 _zmq_msg_recv()_.
|
|
|
|
CAUTION: Never access 'zmq_msg_t' members directly, instead always use the
|
|
_zmq_msg_ family of functions.
|
|
|
|
CAUTION: The functions _zmq_msg_init()_, _zmq_msg_init_data()_,
|
|
_zmq_msg_init_size()_ and _zmq_msg_init_buffer()_ are mutually exclusive.
|
|
Never initialise the same 'zmq_msg_t' twice.
|
|
|
|
|
|
== RETURN VALUE
|
|
The _zmq_msg_init()_ function always returns zero.
|
|
|
|
|
|
== ERRORS
|
|
No errors are defined.
|
|
|
|
|
|
== EXAMPLE
|
|
.Receiving a message from a socket
|
|
----
|
|
zmq_msg_t msg;
|
|
rc = zmq_msg_init (&msg);
|
|
assert (rc == 0);
|
|
int nbytes = zmq_msg_recv (socket, &msg, 0);
|
|
assert (nbytes != -1);
|
|
----
|
|
|
|
|
|
== SEE ALSO
|
|
xref:zmq_msg_init_size.adoc[zmq_msg_init_size]
|
|
xref:zmq_msg_init_buffer.adoc[zmq_msg_init_buffer]
|
|
xref:zmq_msg_init_data.adoc[zmq_msg_init_data]
|
|
xref:zmq_msg_close.adoc[zmq_msg_close]
|
|
xref:zmq_msg_data.adoc[zmq_msg_data]
|
|
xref:zmq_msg_size.adoc[zmq_msg_size]
|
|
xref:zmq.adoc[zmq]
|
|
|
|
|
|
== AUTHORS
|
|
This page was written by the 0MQ community. To make a change please
|
|
read the 0MQ Contribution Policy at <http://www.zeromq.org/docs:contributing>.
|