Release 4.11 tools/lib/lockdep/include/liblockdep/mutex.h

#ifndef _LIBLOCKDEP_MUTEX_H

#define _LIBLOCKDEP_MUTEX_H

#include <pthread.h>
#include "common.h"


struct liblockdep_pthread_mutex {
	
pthread_mutex_t mutex;
	
struct lockdep_map dep_map;
};


typedef struct liblockdep_pthread_mutex liblockdep_pthread_mutex_t;


#define LIBLOCKDEP_PTHREAD_MUTEX_INITIALIZER(mtx)			\
		(const struct liblockdep_pthread_mutex) {               \
        .mutex = PTHREAD_MUTEX_INITIALIZER,                             \
        .dep_map = STATIC_LOCKDEP_MAP_INIT(#mtx, &((&(mtx))->dep_map)), \
}



static inline int __mutex_init(liblockdep_pthread_mutex_t *lock,
				const char *name,
				struct lock_class_key *key,
				const pthread_mutexattr_t *__mutexattr)
{
	lockdep_init_map(&lock->dep_map, name, key, 0);
	return pthread_mutex_init(&lock->mutex, __mutexattr);
}

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#define liblockdep_pthread_mutex_init(mutex, mutexattr)		\
({                                                              \
        static struct lock_class_key __key;                     \
                                                                \
        __mutex_init((mutex), #mutex, &__key, (mutexattr));     \
})



static inline int liblockdep_pthread_mutex_lock(liblockdep_pthread_mutex_t *lock)
{
	lock_acquire(&lock->dep_map, 0, 0, 0, 1, NULL, (unsigned long)_RET_IP_);
	return pthread_mutex_lock(&lock->mutex);
}

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static inline int liblockdep_pthread_mutex_unlock(liblockdep_pthread_mutex_t *lock)
{
	lock_release(&lock->dep_map, 0, (unsigned long)_RET_IP_);
	return pthread_mutex_unlock(&lock->mutex);
}

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static inline int liblockdep_pthread_mutex_trylock(liblockdep_pthread_mutex_t *lock)
{
	lock_acquire(&lock->dep_map, 0, 1, 0, 1, NULL, (unsigned long)_RET_IP_);
	return pthread_mutex_trylock(&lock->mutex) == 0 ? 1 : 0;
}

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static inline int liblockdep_pthread_mutex_destroy(liblockdep_pthread_mutex_t *lock)
{
	return pthread_mutex_destroy(&lock->mutex);
}

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#ifdef __USE_LIBLOCKDEP


#define pthread_mutex_t         liblockdep_pthread_mutex_t

#define pthread_mutex_init      liblockdep_pthread_mutex_init

#define pthread_mutex_lock      liblockdep_pthread_mutex_lock

#define pthread_mutex_unlock    liblockdep_pthread_mutex_unlock

#define pthread_mutex_trylock   liblockdep_pthread_mutex_trylock

#define pthread_mutex_destroy   liblockdep_pthread_mutex_destroy

#endif

#endif
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Directory: tools/lib/lockdep/include/liblockdep

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