QB_IPCS_EVENT_SEND(3)

💖 QB_IPCS_EVENT_SEND(3) — the libqb Programmer's Manual era 💖

okay so bestie, this is a page from the libqb Programmer's Manual, and it's literally all about one lil function that yeets an async event message over to the client. no cap, it's giving glow-up communication ✨

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✨ NAME ✨

qb_ipcs_event_send — send an asynchronous event message to the client. 🦋

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🌸 SYNOPSIS 🌸

#include <qb/qbipcs.h>

ssize_t qb_ipcs_event_send(
    qb_ipcs_connection_t   *c,     /* connection instance */
    const void             *data,  /* the message to send */
    size_t                  size   /* the size of the message */
);

like look at her. so clean. so demure. 💅

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🎀 PARAMS 🎀

• c — connection instance. the whole vibe of which client we're talking to. 👑
• data — the message to send. literally the payload, the moment, the content. 💌
• size — the size of the message. how many bytes we're serving. periodt.

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💜 DESCRIPTION 💜

ngl bestie, this section is empty in the original. the manpage said "DESCRIPTION" and then just... didn't. main character silence. 🙈 so there's genuinely nothing more to tell you here — no extra lore, no secret tips, just vibes. ✨

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🫶 RETURN VALUE 🫶

returns the size sent, or -errno for errors. so if it's a positive number, slay, that many bytes went out. if it's negative, something said "not today" and the error is encoded as a negative errno. 😭

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🔥 NOTE 🔥

okay this one matters, listen up. when send returns -EMSGSIZE, that means the msg is too large and it will never succeed. like, never ever, no retry is saving you, it's not a phase. 💀

to figure out the max msg size a client can actually be sent, use qb_ipcs_connection_get_buffer_size(). she's the one who knows the limits. 🌈

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🌟 SEE ALSO 🌟

a whole friend group, honestly. go read these too:

• qb_ipcs_response_send(3)
• qb_ipcs_ref(3)
• qb_ipcs_unref(3)
• qb_ipcs_connection_auth_set(3)
• qb_ipcs_service_context_get(3)
• qb_ipcs_connection_ref(3)
• qb_ipcs_connection_next_get(3)
• qb_ipcs_stats_get(3)
• qb_ipcs_connection_unref(3)
• qb_ipcs_context_set(3)
• qb_ipcs_poll_handlers_set(3)
• qb_ipcs_request_rate_limit(3)
• qb_ipcs_disconnect(3)
• qb_ipcs_connection_first_get(3)
• qb_ipcs_enforce_buffer_size(3)
• qb_ipcs_destroy(3)
• qb_ipcs_connection_stats_get_2(3)
• qb_ipcs_service_context_set(3)
• qb_ipcs_connection_stats_get(3)
• qb_ipcs_service_id_get(3)
• qb_ipcs_context_get(3)
• qb_ipcs_connection_get_buffer_size(3)
• qb_ipcs_create(3)
• qb_ipcs_run(3)
• qb_ipcs_event_sendv(3)
• qb_ipcs_connection_service_context_get(3)
• qb_ipcs_response_sendv(3)

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👑 COPYRIGHT 👑

Copyright (C) 2010-2020 Red Hat, Inc.

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and that's the whole page bestie 💖 this one came from the LIBQB crew, dated 2025-09-16, and it's QB_IPCS_EVENT_SEND(3) — go send some events, you got this. 🎀✨🦋