NAME

       qb_rb_open - Create the ring buffer with the given type.

SYNOPSIS

       #include <qb/qbrb.h>

       qb_ringbuffer_t* qb_rb_open(
           const char   *name,   /* the unique name of this ringbuffer. */
           size_t        size,   /* the requested size. */
           uint32_t      flags,    /* or'ed flags */
           size_t        shared_user_data_size                    /* size for a shared data area. */
       );

PARAMS

       name                  the unique name of this ringbuffer.

       size                  the requested size.

       flags                 or'ed flags

       shared_user_data_size size for a shared data area.

DESCRIPTION

       This creates allocates a ring buffer in shared memory.

RETURN VALUE

       a new ring buffer or NULL if there was a problem.

NOTE

       the actual size will be rounded up to the next page size.

SEE ALSO

       qb_rb_close(3), qb_rb_refcount_get(3), qb_rb_chmod(3), qb_rb_chown(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)

COPYRIGHT

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