qb_rb_chunk_peek - Man Page

#include <qb/qbrb.h>

ssize_t qb_rb_chunk_peek(
    qb_ringbuffer_t   *rb,          /* ringbuffer instance */
    /*
     * (out) a pointer to the next chunk to read (not copied).
     */
    void             **data_out,
    int32_t            ms_timeout   /* (in) time to wait for new data.*/
);

rb         ringbuffer instance

data_out   (out) a pointer to the next chunk to read (not copied).

ms_timeout (in) time to wait for new data.

This function is a way of accessing the next chunk without a memcpy(). You can read the chunk data in place.

the size of the chunk (0 if buffer empty).

This function will not "pop" the chunk, you will need to call qb_rb_chunk_reclaim().

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_space_used(3), qb_rb_chunk_write(3), qb_rb_shared_user_data_get(3), qb_rb_chunk_commit(3), qb_rb_space_free(3), qb_rb_name_get(3), qb_rb_chunk_alloc(3), qb_rb_chunk_read(3)

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

qb_rb_chmod(3), qb_rb_chown(3), qb_rb_chunk_alloc(3), qb_rb_chunk_commit(3), qb_rb_chunk_read(3), qb_rb_chunk_reclaim(3), qb_rb_chunks_used(3), qb_rb_chunk_write(3), qb_rb_close(3), qb_rb_create_from_file(3), qbrb.h(3), qb_rb_name_get(3), qb_rb_open(3), qb_rb_refcount_get(3), qb_rb_shared_user_data_get(3), qb_rb_space_free(3), qb_rb_space_used(3), qb_rb_write_to_file(3).