QB_LOOP_PO..._EVENT_SET(3)

💅 qb_loop_poll_low_fds_event_set — libqb Programmer's Manual, section 3

okay bestie, sit DOWN, because we're talking about qb_loop_poll_low_fds_event_set from libqb 🦋 this is a section 3 function, so it's a library call, and it lives in the libqb Programmer's Manual. no cap, it's a tiny one, but it's important okay? 🫶

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✨ NAME ✨

qb_loop_poll_low_fds_event_set — set a callback so you get events when your file descriptors are getting low 🔥

like, the vibe is: "hey girl, you're running out of fds, wanna know?" 💀

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🌸 SYNOPSIS 🌸

#include <qb/qbloop.h>

int32_t qb_loop_poll_low_fds_event_set(
    qb_loop_t                     *l,   /* pointer to the loop instance */
    qb_loop_poll_low_fds_event_fn  fn   /* callback function. */
);

okay so you gotta pull in qb/qbloop.h first, always, no exceptions 💖 and then you call it with exactly those two args, in exactly that order, and yes the return type is int32_t. don't @ me.

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🎀 PARAMS 🎀

• l — pointer to the loop instance. it's your loop, your girl, your main character 👑
• fn — callback function. the little function that goes "bestie!!" when it's time ✨

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🦋 DESCRIPTION 🦋

soooo... the DESCRIPTION section in the original is literally empty 🙈 no lore, no prose, nothing. just the section heading and then vibes. so i'm not gonna invent anything for you, because making stuff up is not the move, periodt. 💅

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⭐ RETURN VALUE ⭐

• status, where 0 means ok ✅
• and -errno means failure 😭

that's it. that's the whole contract. check your return value, i'm begging you 🙏

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🌈 SEE ALSO 🌈

the whole friend group, in the exact order the page lists them:

• qb_loop_job_del(3)
• qb_loop_run(3)
• qb_loop_create(3)
• qb_loop_stop(3)
• qb_loop_signal_del(3)
• qb_loop_signal_add(3)
• qb_loop_job_add(3)
• qb_loop_poll_del(3)
• qb_loop_destroy(3)
• qb_loop_timer_expire_time_remaining(3)
• qb_loop_poll_mod(3)
• qb_loop_signal_mod(3)
• qb_loop_timer_del(3)
• qb_loop_timer_add(3)
• qb_loop_timer_is_running(3)
• qb_loop_timer_expire_time_get(3)
• qb_loop_poll_add(3)

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💜 COPYRIGHT 💜

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

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okay one (1) tiny warning bestie: this page genuinely gives you nothing in DESCRIPTION, so don't go assuming extra behaviour, mmkay? what you see is what you get, fr fr. 🍓

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and that's the whole page, angel 🧚 this was libqb, dated 2025-09-16, and it ate, no crumbs, bye bestie 💖✨🎀