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/*
* tinylock.h
* Copyright 2013 John Lindgren
*
* 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
* provided with the distribution.
*
* This software is provided "as is" and without any warranty, express or
* implied. In no event shall the authors be liable for any damages arising from
* the use of this software.
*/
#ifndef LIBAUDCORE_TINYLOCK_H
#define LIBAUDCORE_TINYLOCK_H
#if @VALGRIND_FRIENDLY@ /* VALGRIND_FRIENDLY */
#include <pthread.h>
typedef pthread_mutex_t TinyLock;
typedef pthread_rwlock_t TinyRWLock;
#define tiny_lock pthread_mutex_lock
#define tiny_unlock pthread_mutex_unlock
#define tiny_lock_read pthread_rwlock_rdlock
#define tiny_unlock_read pthread_rwlock_unlock
#define tiny_lock_write pthread_rwlock_wrlock
#define tiny_unlock_write pthread_rwlock_unlock
#else /* ! VALGRIND_FRIENDLY */
/* TinyLock is an extremely low-overhead lock object (in terms of speed and
* memory usage). It makes no guarantees of fair scheduling, however. */
typedef char TinyLock;
void tiny_lock (TinyLock * lock);
void tiny_unlock (TinyLock * lock);
typedef unsigned short TinyRWLock;
void tiny_lock_read (TinyRWLock * lock);
void tiny_unlock_read (TinyRWLock * lock);
void tiny_lock_write (TinyRWLock * lock);
void tiny_unlock_write (TinyRWLock * lock);
#endif /* ! VALGRIND_FRIENDLY */
#endif /* LIBAUDCORE_TINYLOCK_H */
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