pd.if.org Git - liblfds/blob - liblfds/liblfds7.1.0/test_and_benchmark/libbenchmark/inc/libbenchmark/libbenchmark_porting_abstraction_layer_lock_gcc_spinlock_sync.h

   1 /****************************************************************************/
   2 #if( defined __GNUC__ && LIBLFDS_GCC_VERSION >= 412 )
   3
   4   /***** defines *****/
   5   #define LIBBENCHMARK_PAL_LOCK_GCC_SPINLOCK_SYNC 1
   6
   7   #define LIBBENCHMARK_PAL_LOCK_GCC_SPINLOCK_SYNC_UNINITIALIZED  0
   8   #define LIBBENCHMARK_PAL_LOCK_GCC_SPINLOCK_SYNC_AVAILABLE      1
   9   #define LIBBENCHMARK_PAL_LOCK_GCC_SPINLOCK_SYNC_UNAVAILABLE    2
  10
  11   #define LIBBENCHMARK_PAL_LOCK_GCC_SPINLOCK_SYNC_CREATE( pal_lock_gcc_spinlock_sync_state )  \
  12   {                                                                                           \
  13     (pal_lock_gcc_spinlock_sync_state) = LIBBENCHMARK_PAL_LOCK_GCC_SPINLOCK_SYNC_AVAILABLE;   \
  14     LFDS710_MISC_BARRIER_STORE;                                                               \
  15     lfds710_misc_force_store();                                                               \
  16   }
  17
  18   #define LIBBENCHMARK_PAL_LOCK_GCC_SPINLOCK_SYNC_DESTROY( pal_lock_gcc_spinlock_sync_state )  \
  19   {                                                                                            \
  20     (pal_lock_gcc_spinlock_sync_state) = LIBBENCHMARK_PAL_LOCK_GCC_SPINLOCK_SYNC_UNAVAILABLE;  \
  21     LFDS710_MISC_BARRIER_STORE;                                                                \
  22     lfds710_misc_force_store();                                                                \
  23   }
  24
  25   #define LIBBENCHMARK_PAL_LOCK_GCC_SPINLOCK_SYNC_GET( pal_lock_gcc_spinlock_sync_state )      while( LIBBENCHMARK_PAL_LOCK_GCC_SPINLOCK_SYNC_AVAILABLE != __sync_val_compare_and_swap(&(pal_lock_gcc_spinlock_sync_state), (lfds710_pal_uint_t) LIBBENCHMARK_PAL_LOCK_GCC_SPINLOCK_SYNC_AVAILABLE, (lfds710_pal_uint_t) LIBBENCHMARK_PAL_LOCK_GCC_SPINLOCK_SYNC_UNAVAILABLE) )
  26
  27   #define LIBBENCHMARK_PAL_LOCK_GCC_SPINLOCK_SYNC_RELEASE( pal_lock_gcc_spinlock_sync_state )  __sync_lock_test_and_set( &(pal_lock_gcc_spinlock_sync_state), LIBBENCHMARK_PAL_LOCK_GCC_SPINLOCK_SYNC_AVAILABLE )
  28
  29   /***** typedefs *****/
  30   typedef lfds710_pal_uint_t pal_lock_gcc_spinlock_sync_state;
  31
  32 #endif
  33
  34
  35
  36
  37
  38 /****************************************************************************/
  39 #if( !defined LIBBENCHMARK_PAL_LOCK_GCC_SPINLOCK_SYNC )
  40
  41   /***** defines *****/
  42   #define LIBBENCHMARK_PAL_LOCK_GCC_SPINLOCK_SYNC 0
  43
  44   #define LIBBENCHMARK_PAL_LOCK_GCC_SPINLOCK_SYNC_CREATE( pal_lock_gcc_spinlock_atomic_sync )
  45   #define LIBBENCHMARK_PAL_LOCK_GCC_SPINLOCK_SYNC_DESTROY( pal_lock_gcc_spinlock_atomic_sync )
  46   #define LIBBENCHMARK_PAL_LOCK_GCC_SPINLOCK_SYNC_GET( pal_lock_gcc_spinlock_atomic_sync )
  47   #define LIBBENCHMARK_PAL_LOCK_GCC_SPINLOCK_SYNC_RELEASE( pal_lock_gcc_spinlock_atomic_sync )
  48
  49   /***** typedefs *****/
  50   typedef void * pal_lock_gcc_spinlock_sync_state;
  51
  52 #endif
  53