source: mainline/kernel/generic/include/synch/mutex.h@ b76ce3f

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since b76ce3f was 83dab11, checked in by Jiri Svoboda <jiri@…>, 8 years ago

Replace usage of typedefs.h with includes of more specific, standard headers, where applicable.

  • Property mode set to 100644
File size: 2.2 KB
RevLine 
[f761f1eb]1/*
[df4ed85]2 * Copyright (c) 2001-2004 Jakub Jermar
[f761f1eb]3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * - Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * - The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
[06e1e95]29/** @addtogroup sync
[b45c443]30 * @{
31 */
32/** @file
33 */
34
[06e1e95]35#ifndef KERN_MUTEX_H_
36#define KERN_MUTEX_H_
[f761f1eb]37
[83dab11]38#include <stdbool.h>
39#include <stdint.h>
[f761f1eb]40#include <synch/semaphore.h>
[c0699467]41#include <abi/synch.h>
[f761f1eb]42
[08a19ba]43typedef enum {
44 MUTEX_PASSIVE,
45 MUTEX_ACTIVE
46} mutex_type_t;
47
[e71a61d]48typedef struct {
[08a19ba]49 mutex_type_t type;
[f761f1eb]50 semaphore_t sem;
[e71a61d]51} mutex_t;
[f761f1eb]52
[da1bafb]53#define mutex_lock(mtx) \
[31d8e10]54 _mutex_lock_timeout((mtx), SYNCH_NO_TIMEOUT, SYNCH_FLAGS_NONE)
[da1bafb]55
56#define mutex_trylock(mtx) \
[31d8e10]57 _mutex_lock_timeout((mtx), SYNCH_NO_TIMEOUT, SYNCH_FLAGS_NON_BLOCKING)
[da1bafb]58
59#define mutex_lock_timeout(mtx, usec) \
[31d8e10]60 _mutex_lock_timeout((mtx), (usec), SYNCH_FLAGS_NON_BLOCKING)
[1068f6a]61
[08a19ba]62extern void mutex_initialize(mutex_t *, mutex_type_t);
[d7da4284]63extern bool mutex_locked(mutex_t *);
[da1bafb]64extern int _mutex_lock_timeout(mutex_t *, uint32_t, unsigned int);
[08a19ba]65extern void mutex_unlock(mutex_t *);
[f761f1eb]66
67#endif
[b45c443]68
[06e1e95]69/** @}
[b45c443]70 */
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