mirror of
https://github.com/portapack-mayhem/mayhem-firmware.git
synced 2024-12-17 05:28:13 +00:00
104 lines
3.1 KiB
C
104 lines
3.1 KiB
C
|
/*
|
||
|
|
ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
|
||
|
|
2011,2012,2013 Giovanni Di Sirio.
|
||
|
|
|
||
|
|
This file is part of ChibiOS/RT.
|
||
|
|
|
||
|
|
ChibiOS/RT 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 3 of the License, or
|
||
|
|
(at your option) any later version.
|
||
|
|
|
||
|
|
ChibiOS/RT 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, see <http://www.gnu.org/licenses/>.
|
||
|
|
|
||
|
|
---
|
||
|
|
|
||
|
|
A special exception to the GPL can be applied should you wish to distribute
|
||
|
|
a combined work that includes ChibiOS/RT, without being obliged to provide
|
||
|
|
the source code for any proprietary components. See the file exception.txt
|
||
|
|
for full details of how and when the exception can be applied.
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @file chmtx.h
|
||
|
|
* @brief Mutexes macros and structures.
|
||
|
|
*
|
||
|
|
* @addtogroup mutexes
|
||
|
|
* @{
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef _CHMTX_H_
|
||
|
|
#define _CHMTX_H_
|
||
|
|
|
||
|
|
#if CH_USE_MUTEXES || defined(__DOXYGEN__)
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @brief Mutex structure.
|
||
|
|
*/
|
||
|
|
typedef struct Mutex {
|
||
|
|
ThreadsQueue m_queue; /**< @brief Queue of the threads sleeping
|
||
|
|
on this Mutex. */
|
||
|
|
Thread *m_owner; /**< @brief Owner @p Thread pointer or
|
||
|
|
@p NULL. */
|
||
|
|
struct Mutex *m_next; /**< @brief Next @p Mutex into an
|
||
|
|
owner-list or @p NULL. */
|
||
|
|
} Mutex;
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
extern "C" {
|
||
|
|
#endif
|
||
|
|
void chMtxInit(Mutex *mp);
|
||
|
|
void chMtxLock(Mutex *mp);
|
||
|
|
void chMtxLockS(Mutex *mp);
|
||
|
|
bool_t chMtxTryLock(Mutex *mp);
|
||
|
|
bool_t chMtxTryLockS(Mutex *mp);
|
||
|
|
Mutex *chMtxUnlock(void);
|
||
|
|
Mutex *chMtxUnlockS(void);
|
||
|
|
void chMtxUnlockAll(void);
|
||
|
|
#ifdef __cplusplus
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @brief Data part of a static mutex initializer.
|
||
|
|
* @details This macro should be used when statically initializing a mutex
|
||
|
|
* that is part of a bigger structure.
|
||
|
|
*
|
||
|
|
* @param[in] name the name of the mutex variable
|
||
|
|
*/
|
||
|
|
#define _MUTEX_DATA(name) {_THREADSQUEUE_DATA(name.m_queue), NULL, NULL}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @brief Static mutex initializer.
|
||
|
|
* @details Statically initialized mutexes require no explicit initialization
|
||
|
|
* using @p chMtxInit().
|
||
|
|
*
|
||
|
|
* @param[in] name the name of the mutex variable
|
||
|
|
*/
|
||
|
|
#define MUTEX_DECL(name) Mutex name = _MUTEX_DATA(name)
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @name Macro Functions
|
||
|
|
* @{
|
||
|
|
*/
|
||
|
|
/**
|
||
|
|
* @brief Returns @p TRUE if the mutex queue contains at least a waiting
|
||
|
|
* thread.
|
||
|
|
*
|
||
|
|
* @sclass
|
||
|
|
*/
|
||
|
|
#define chMtxQueueNotEmptyS(mp) notempty(&(mp)->m_queue)
|
||
|
|
/** @} */
|
||
|
|
|
||
|
|
#endif /* CH_USE_MUTEXES */
|
||
|
|
|
||
|
|
#endif /* _CHMTX_H_ */
|
||
|
|
|
||
|
|
/** @} */
|