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50 lines
1.1 KiB
C
50 lines
1.1 KiB
C
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/*
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* BIRD Locking Subsystem
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*
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* (c) 2018 Maria Matejka <mq@jmq.cz>
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*
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* Can be freely distributed and used under the terms of the GNU GPL.
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*/
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#ifndef _BIRD_SYSDEP_MUTEX_H_
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#define _BIRD_SYSDEP_MUTEX_H_
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#define MUTEX_DEBUG 1
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#if MUTEX_DEBUG
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#define MUTEX_TYPE PTHREAD_MUTEX_ERRORCHECK
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#else
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#define MUTEX_TYPE PTHREAD_MUTEX_NORMAL
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#endif
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#include <pthread.h>
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typedef pthread_mutex_t mutex;
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static inline void mutex_init(mutex *m)
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{
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pthread_mutexattr_t mat;
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if (pthread_mutexattr_init(&mat) < 0)
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bug("pthread_mutexattr_init() failed: %m");
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if (pthread_mutexattr_settype(&mat, MUTEX_TYPE) < 0)
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bug("pthread_mutexattr_settype() failed: %m");
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if (pthread_mutex_init(m, &mat) < 0)
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bug("pthread_mutex_init() failed: %m");
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}
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#if MUTEX_DEBUG
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#define mutex_lock(m) do { \
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if (pthread_mutex_lock(m)) \
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bug("pthread_mutex_lock() failed: %m"); \
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} while (0)
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#define mutex_unlock(m) do { \
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if (pthread_mutex_unlock(m)) \
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bug("pthread_mutex_unlock() failed: %m"); \
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} while (0)
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#else
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#define mutex_lock(m) pthread_mutex_lock(m)
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#define mutex_unlock(m) pthread_mutex_unlock(m)
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#endif
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#endif
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