NAME

       qb_rb_chunk_alloc - Allocate space for a chunk of the given size.

SYNOPSIS

       #include <qb/qbrb.h>

       void * qb_rb_chunk_alloc(
           qb_ringbuffer_t   *rb,   /* ringbuffer instance */
           size_t             len   /* (in) the size to allocate. */
       );

PARAMS

       rb  ringbuffer instance

       len (in) the size to allocate.

DESCRIPTION

       If type == QB_RB_FLAG_OVERWRITE and NULL is returned, memory corruption of the memory file
       has occurred. The ringbuffer should be destroyed. If type == QB_RB_NORMAL then when  there
       is not enough space it will return NULL.

RETURN VALUE

       pointer to chunk to write to, or NULL (if no space).

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_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_read(3)

COPYRIGHT

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