atomic_queue.h

Go to the documentation of this file.

#pragma once
/*
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
 */
 
/**
 * $Id: 82266f72d8f657073a7733a11f127f4fa5ff4d95 $
 *
 * @file io/atomic_queue.h
 * @brief Thread-safe queues.
 *
 * @copyright 2016 Alan DeKok (aland@freeradius.org)
 */
RCSIDH(atomic_queue_h, "$Id: 82266f72d8f657073a7733a11f127f4fa5ff4d95 $")
 
#include <stdbool.h>
 
#ifdef HAVE_STDATOMIC_H
#  include <stdatomic.h>
#else
#  include <freeradius-devel/util/stdatomic.h>
#endif
#include <freeradius-devel/util/talloc.h>
 
#ifdef __cplusplus
extern "C" {
#endif
 
typedef struct fr_atomic_queue_s fr_atomic_queue_t;
 
fr_atomic_queue_t       *fr_atomic_queue_alloc(TALLOC_CTX *ctx, size_t size);
void                    fr_atomic_queue_free(fr_atomic_queue_t **aq);
bool                    fr_atomic_queue_push(fr_atomic_queue_t *aq, void *data);
bool                    fr_atomic_queue_pop(fr_atomic_queue_t *aq, void **p_data);
size_t                  fr_atomic_queue_size(fr_atomic_queue_t *aq);
 
#ifdef WITH_VERIFY_PTR
void                    fr_atomic_queue_verify(fr_atomic_queue_t *aq);
#endif
 
#ifndef NDEBUG
void                    fr_atomic_queue_debug(FILE *fp, fr_atomic_queue_t *aq);
#endif
 
 
#ifdef __cplusplus
}
#endif