deps/jemalloc.orig/include/jemalloc/internal/mutex.h

   1 /******************************************************************************/
   2 #ifdef JEMALLOC_H_TYPES
   3
   4 #ifdef JEMALLOC_OSSPIN
   5 typedef OSSpinLock malloc_mutex_t;
   6 #else
   7 typedef pthread_mutex_t malloc_mutex_t;
   8 #endif
   9
  10 #ifdef PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
  11 #  define MALLOC_MUTEX_INITIALIZER PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
  12 #else
  13 #  define MALLOC_MUTEX_INITIALIZER PTHREAD_MUTEX_INITIALIZER
  14 #endif
  15
  16 #endif /* JEMALLOC_H_TYPES */
  17 /******************************************************************************/
  18 #ifdef JEMALLOC_H_STRUCTS
  19
  20 #endif /* JEMALLOC_H_STRUCTS */
  21 /******************************************************************************/
  22 #ifdef JEMALLOC_H_EXTERNS
  23
  24 #ifdef JEMALLOC_LAZY_LOCK
  25 extern bool isthreaded;
  26 #else
  27 #  define isthreaded true
  28 #endif
  29
  30 bool    malloc_mutex_init(malloc_mutex_t *mutex);
  31 void    malloc_mutex_destroy(malloc_mutex_t *mutex);
  32
  33 #endif /* JEMALLOC_H_EXTERNS */
  34 /******************************************************************************/
  35 #ifdef JEMALLOC_H_INLINES
  36
  37 #ifndef JEMALLOC_ENABLE_INLINE
  38 void    malloc_mutex_lock(malloc_mutex_t *mutex);
  39 bool    malloc_mutex_trylock(malloc_mutex_t *mutex);
  40 void    malloc_mutex_unlock(malloc_mutex_t *mutex);
  41 #endif
  42
  43 #if (defined(JEMALLOC_ENABLE_INLINE) || defined(JEMALLOC_MUTEX_C_))
  44 JEMALLOC_INLINE void
  45 malloc_mutex_lock(malloc_mutex_t *mutex)
  46 {
  47
  48         if (isthreaded) {
  49 #ifdef JEMALLOC_OSSPIN
  50                 OSSpinLockLock(mutex);
  51 #else
  52                 pthread_mutex_lock(mutex);
  53 #endif
  54         }
  55 }
  56
  57 JEMALLOC_INLINE bool
  58 malloc_mutex_trylock(malloc_mutex_t *mutex)
  59 {
  60
  61         if (isthreaded) {
  62 #ifdef JEMALLOC_OSSPIN
  63                 return (OSSpinLockTry(mutex) == false);
  64 #else
  65                 return (pthread_mutex_trylock(mutex) != 0);
  66 #endif
  67         } else
  68                 return (false);
  69 }
  70
  71 JEMALLOC_INLINE void
  72 malloc_mutex_unlock(malloc_mutex_t *mutex)
  73 {
  74
  75         if (isthreaded) {
  76 #ifdef JEMALLOC_OSSPIN
  77                 OSSpinLockUnlock(mutex);
  78 #else
  79                 pthread_mutex_unlock(mutex);
  80 #endif
  81         }
  82 }
  83 #endif
  84
  85 #endif /* JEMALLOC_H_INLINES */
  86 /******************************************************************************/