QB_RB_SPACE_USED(3)

💖 QB_RB_SPACE_USED(3) 💖

okay so bestie, welcome to the libqb Programmer's Manual ✨ this one's a lil baby page but it's IMPORTANT, so lock in 🫶

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🌸 NAME 🌸

qb_rb_space_used — the total amount of data in the buffer, fr fr 💅

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✨ SYNOPSIS ✨

#include <qb/qbrb.h>

ssize_t qb_rb_space_used(
    qb_ringbuffer_t   *rb   /* ringbuffer instance */
);

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🎀 PARAMS 🎀

• rb — ringbuffer instance 💫 (yes that's it, that's the whole param list, she's low maintenance)

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👑 DESCRIPTION 👑

no cap, there's no extra prose here in the original — the whole vibe is the note below 👇

💜 NOTE 💜

this count includes the chunk headers — that's 8 bytes per chunk 🍓 so when you're doing your math, don't forget to account for the headers too, or the vibe check will fail 😭

heads up bestie: qb_rb_space_used is giving total data in the buffer, not free space. if that's what you wanted, you want qb_rb_space_free instead, iykyk 💅

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🌈 SEE ALSO 🌈

• qb_rb_close(3)
• 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_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)

the whole ringbuffer friend group, periodt 👑 go read them all, they ate 💅

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🦋 COPYRIGHT 🦋

Copyright (C) 2010-2020 Red Hat, Inc. — slay, thanks Red Hat 🫶

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and that's the whole page, bestie!! this one came from LIBQB, dated 2025-09-16, and it lives at QB_RB_SPACE_USED(3) in the manual 💖 go forth and count your chunks (headers included, don't forget!!) ✨🎀