/
atommutex.h
executable file
·52 lines (47 loc) · 2.14 KB
/
atommutex.h
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/*
* Copyright (c) 2010, Kelvin Lawson. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. No personal names or organizations' names associated with the
* Atomthreads project may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE ATOMTHREADS PROJECT AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __ATOM_MUTEX_H
#define __ATOM_MUTEX_H
#ifdef __cplusplus
extern "C" {
#endif
typedef struct atom_mutex
{
ATOM_TCB * suspQ; /* Queue of threads suspended on this mutex */
ATOM_TCB * owner; /* Thread which currently owns the lock */
uint8_t count; /* Recursive count of locks by the owner */
} ATOM_MUTEX;
extern uint8_t atomMutexCreate (ATOM_MUTEX *mutex);
extern uint8_t atomMutexDelete (ATOM_MUTEX *mutex);
extern uint8_t atomMutexGet (ATOM_MUTEX *mutex, int32_t timeout);
extern uint8_t atomMutexPut (ATOM_MUTEX *mutex);
#ifdef __cplusplus
}
#endif
#endif /* __ATOM_MUTEX_H */