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openmpi/src/threads/mutex_unix.h

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2.9 KiB
C
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/*
* $HEADER$
*/
#ifndef OMPI_MUTEX_UNIX_H
#define OMPI_MUTEX_UNIX_H 1
/**
* @file:
*
* Mutual exclusion functions: Windows implementation.
*
* Functions for locking of critical sections.
*
* On unix, use pthreads or our own atomic operations as
* available.
*/
#if OMPI_HAVE_POSIX_THREADS
#include <pthread.h>
#endif
#include "class/ompi_object.h"
#include "include/sys/atomic.h"
struct ompi_mutex_t {
ompi_object_t super;
#if OMPI_HAVE_POSIX_THREADS
pthread_mutex_t m_lock_pthread;
#endif
ompi_lock_t m_lock_atomic;
};
OBJ_CLASS_DECLARATION(ompi_mutex_t);
#if OMPI_HAVE_ATOMIC && OMPI_HAVE_POSIX_THREADS
/*
* ompi_mutex_* implemented using pthreads
* ompi_mutex_atomic_* implemented using atomic operations
*/
static inline int ompi_mutex_trylock(ompi_mutex_t *m)
{
return pthread_mutex_trylock(&m->m_lock_pthread);
}
static inline void ompi_mutex_lock(ompi_mutex_t *m)
{
pthread_mutex_lock(&m->m_lock_pthread);
}
static inline void ompi_mutex_unlock(ompi_mutex_t *m)
{
pthread_mutex_unlock(&m->m_lock_pthread);
}
static inline void ompi_mutex_atomic_lock(ompi_mutex_t *m)
{
ompi_atomic_lock(&m->m_lock_atomic);
}
static inline int ompi_mutex_atomic_trylock(ompi_mutex_t *m)
{
return ompi_atomic_trylock(&m->m_lock_atomic);
}
static inline void ompi_mutex_atomic_unlock(ompi_mutex_t *m)
{
ompi_atomic_unlock(&m->m_lock_atomic);
}
#elif OMPI_HAVE_POSIX_THREADS
/*
* ompi_mutex_* and ompi_mutex_atomic_* implemented using pthreads
*/
static inline int ompi_mutex_trylock(ompi_mutex_t *m)
{
return pthread_mutex_trylock(&m->m_lock_pthread);
}
static inline void ompi_mutex_lock(ompi_mutex_t *m)
{
pthread_mutex_lock(&m->m_lock_pthread);
}
static inline void ompi_mutex_unlock(ompi_mutex_t *m)
{
pthread_mutex_unlock(&m->m_lock_pthread);
}
static inline int ompi_mutex_atomic_trylock(ompi_mutex_t *m)
{
return ompi_mutex_trylock(m);
}
static inline void ompi_mutex_atomic_lock(ompi_mutex_t *m)
{
ompi_mutex_lock(m);
}
static inline void ompi_mutex_atomic_unlock(ompi_mutex_t *m)
{
ompi_mutex_unlock(m);
}
#elif OMPI_HAVE_ATOMIC
/*
* ompi_mutex_* and ompi_mutex_atomic_* implemented using atomic
* operations
*/
static inline int ompi_mutex_trylock(ompi_mutex_t *m)
{
return ompi_atomic_trylock(&m->m_lock_atomic);
}
static inline void ompi_mutex_lock(ompi_mutex_t *m)
{
ompi_atomic_lock(&m->m_lock_atomic);
}
static inline void ompi_mutex_unlock(ompi_mutex_t *m)
{
ompi_atomic_unlock(&m->m_lock_atomic);
}
static inline int ompi_mutex_atomic_trylock(ompi_mutex_t *m)
{
return ompi_mutex_trylock(m);
}
static inline void ompi_mutex_atomic_lock(ompi_mutex_t *m)
{
ompi_mutex_lock(m);
}
static inline void ompi_mutex_atomic_unlock(ompi_mutex_t *m)
{
ompi_mutex_unlock(m);
}
#else
#error No mutex definition
#endif
#endif /* OMPI_MUTEX_UNIX_H */