4dcf04bfc0
PTHREAD_MUTEX_ADAPTIVE_NP is an enum on glibc and not a macro, we must test for their existence by attempting compilation.
100 lines
2.6 KiB
C
100 lines
2.6 KiB
C
/******************************************************************************/
|
|
#ifdef JEMALLOC_H_TYPES
|
|
|
|
typedef struct malloc_mutex_s malloc_mutex_t;
|
|
|
|
#ifdef _WIN32
|
|
# define MALLOC_MUTEX_INITIALIZER
|
|
#elif (defined(JEMALLOC_OSSPIN))
|
|
# define MALLOC_MUTEX_INITIALIZER {0}
|
|
#elif (defined(JEMALLOC_MUTEX_INIT_CB))
|
|
# define MALLOC_MUTEX_INITIALIZER {PTHREAD_MUTEX_INITIALIZER, NULL}
|
|
#else
|
|
# if (defined(JEMALLOC_HAVE_PTHREAD_MUTEX_ADAPTIVE_NP) && \
|
|
defined(PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP))
|
|
# define MALLOC_MUTEX_TYPE PTHREAD_MUTEX_ADAPTIVE_NP
|
|
# define MALLOC_MUTEX_INITIALIZER {PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP}
|
|
# else
|
|
# define MALLOC_MUTEX_TYPE PTHREAD_MUTEX_DEFAULT
|
|
# define MALLOC_MUTEX_INITIALIZER {PTHREAD_MUTEX_INITIALIZER}
|
|
# endif
|
|
#endif
|
|
|
|
#endif /* JEMALLOC_H_TYPES */
|
|
/******************************************************************************/
|
|
#ifdef JEMALLOC_H_STRUCTS
|
|
|
|
struct malloc_mutex_s {
|
|
#ifdef _WIN32
|
|
CRITICAL_SECTION lock;
|
|
#elif (defined(JEMALLOC_OSSPIN))
|
|
OSSpinLock lock;
|
|
#elif (defined(JEMALLOC_MUTEX_INIT_CB))
|
|
pthread_mutex_t lock;
|
|
malloc_mutex_t *postponed_next;
|
|
#else
|
|
pthread_mutex_t lock;
|
|
#endif
|
|
};
|
|
|
|
#endif /* JEMALLOC_H_STRUCTS */
|
|
/******************************************************************************/
|
|
#ifdef JEMALLOC_H_EXTERNS
|
|
|
|
#ifdef JEMALLOC_LAZY_LOCK
|
|
extern bool isthreaded;
|
|
#else
|
|
# undef isthreaded /* Undo private_namespace.h definition. */
|
|
# define isthreaded true
|
|
#endif
|
|
|
|
bool malloc_mutex_init(malloc_mutex_t *mutex);
|
|
void malloc_mutex_prefork(malloc_mutex_t *mutex);
|
|
void malloc_mutex_postfork_parent(malloc_mutex_t *mutex);
|
|
void malloc_mutex_postfork_child(malloc_mutex_t *mutex);
|
|
bool mutex_boot(void);
|
|
|
|
#endif /* JEMALLOC_H_EXTERNS */
|
|
/******************************************************************************/
|
|
#ifdef JEMALLOC_H_INLINES
|
|
|
|
#ifndef JEMALLOC_ENABLE_INLINE
|
|
void malloc_mutex_lock(malloc_mutex_t *mutex);
|
|
void malloc_mutex_unlock(malloc_mutex_t *mutex);
|
|
#endif
|
|
|
|
#if (defined(JEMALLOC_ENABLE_INLINE) || defined(JEMALLOC_MUTEX_C_))
|
|
JEMALLOC_INLINE void
|
|
malloc_mutex_lock(malloc_mutex_t *mutex)
|
|
{
|
|
|
|
if (isthreaded) {
|
|
#ifdef _WIN32
|
|
EnterCriticalSection(&mutex->lock);
|
|
#elif (defined(JEMALLOC_OSSPIN))
|
|
OSSpinLockLock(&mutex->lock);
|
|
#else
|
|
pthread_mutex_lock(&mutex->lock);
|
|
#endif
|
|
}
|
|
}
|
|
|
|
JEMALLOC_INLINE void
|
|
malloc_mutex_unlock(malloc_mutex_t *mutex)
|
|
{
|
|
|
|
if (isthreaded) {
|
|
#ifdef _WIN32
|
|
LeaveCriticalSection(&mutex->lock);
|
|
#elif (defined(JEMALLOC_OSSPIN))
|
|
OSSpinLockUnlock(&mutex->lock);
|
|
#else
|
|
pthread_mutex_unlock(&mutex->lock);
|
|
#endif
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#endif /* JEMALLOC_H_INLINES */
|
|
/******************************************************************************/
|