QB_RB_CLOSE(3)

💖 qb_rb_close — the libqb ringbuffer breakup page 💖

ok so bestie, you're in libqb land and this is the qb_rb_close(3) page from the libqb Programmer's Manual. no cap. let's get into it 🫶

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✨ NAME ✨

qb_rb_close — dereference the ringbuffer and, if we are the last user, destroy it.

like... it's giving "thanks for the memories, but I'm leaving". lowkey emotional. 😭

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✨ SYNOPSIS ✨

#include <qb/qbrb.h>

void qb_rb_close(
    qb_ringbuffer_t   *rb   /* ringbuffer instance */
);

yep that's the whole thing. void return, one argument, no notes. 💅

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✨ PARAMS ✨

• rb — ringbuffer instance 🌸

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✨ DESCRIPTION ✨

ok so here's the tea: all files, mmaped memory, semaphores and locks will be destroyed. 🔥

all of them. the files, the mmaped memory, the semaphores, the locks. gone. bye. periodt. ✨

(and if you're not the last user holding a reference? then it just dereferences and the actual destruction waits for the last one to leave the group chat. that's the "if we are the last user" part in the NAME, bestie, don't skip it. 👑)

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✨ SEE ALSO ✨

the whole ringbuffer friend group, fr fr 🦋:

• qb_rb_refcount_get(3)
• qb_rb_chmod(3)
• qb_rb_chown(3)
• qb_rb_open(3)
• qb_rb_write_to_file(3)
• qb_rb_create_from_file(3)
• qb_rb_chunks_used(3)
• qb_rb_chunk_reclaim(3)
• qb_rb_space_used(3)
• qb_rb_chunk_write(3)
• qb_rb_shared_user_data_get(3)
• qb_rb_chunk_commit(3)
• qb_rb_chunk_peek(3)
• qb_rb_space_free(3)
• qb_rb_name_get(3)
• qb_rb_chunk_alloc(3)
• qb_rb_chunk_read(3)

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✨ COPYRIGHT ✨

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

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quick vibe check 🧚: this is a void function, so there's literally nothing to check on the way out. you call it, you dip, it handles the rest. iykyk.

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ok that's the page, bestie!! 🎀 this was the libqb manual, dated 2025-09-16 — mwah, slay, go close your ringbuffer responsibly. 💖✨🌈