ZMQ_MSG_INIT(3)

💖 ZMQ_MSG_INIT(3) 💖

okay bestie, welcome to the 0MQ manual — yes, this is zmq_msg_init from the 0MQ crew, and it's genuinely the easiest function you'll meet today. sit down, hydrate, let's go ✨

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🌸 NAME 🌸

zmq_msg_init — initialise empty 0MQ message

🎀 SYNOPSIS 🎀

int zmq_msg_init (zmq_msg_t *msg);

🦋 DESCRIPTION 🦋

So the zmq_msg_init() function shall initialise the message object referenced by msg so it represents an empty message. That's it. That's the whole job. She's lowkey the setup queen 👑

This one is most useful when called before receiving a message with zmq_msg_recv() — like, you gotta make the lil message container exist before the data can move in, yk? prep the room before the guests arrive 💅

⚠️ Caution — Never access zmq_msg_t members directly, bestie. I'm so serious. Never. Always use the zmq_msg family of functions instead. Direct member access is not the vibe, it's the bug. 🙈

⚠️ 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. Not once. Not ever. Double-initialising is giving chaos and destruction, no cap 💀

⭐ RETURN VALUE ⭐

The zmq_msg_init() function always returns zero. Always. Every time. She is consistent, she is reliable, she is the moment 🫶

🌈 ERRORS 🌈

No errors are defined. Literally none. There is nothing to catch here, she cannot fail you 🧚

✨ 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 how tidy that is? init, assert, recv, assert. ate and left no crumbs 🔥

💜 SEE ALSO 💜

• zmq_msg_init_size(3)
• zmq_msg_init_buffer(3)
• zmq_msg_init_data(3)
• zmq_msg_close(3)
• zmq_msg_data(3)
• zmq_msg_size(3)
• zmq(7)

👑 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.

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and that's the whole page, babe 💖 this was 0MQ 4.3.5, dated 10/09/2023 — go init some messages, you're gonna slay 🎀✨🦋