C++ (Cpp) __TBB_LockByte Examples

Example #1

File: spin_mutex.cpp Project: ucberkeley/lithe

void spin_mutex::scoped_lock::internal_acquire( spin_mutex& m ) {
    __TBB_ASSERT( !my_mutex, "already holding a lock on a spin_mutex" );
    ITT_NOTIFY(sync_prepare, &m);
    my_unlock_value = __TBB_LockByte(m.flag);
    my_mutex = &m;
    ITT_NOTIFY(sync_acquired, &m);
}

Example #2

File: test_assembly.cpp Project: zhangchuhu/s2s

static void TestTinyLock() {
    if( Verbose )
        printf("testing __TBB_LockByte\n");
    unsigned char flags[16];
    for( int i=0; i<16; ++i )
        flags[i] = i;
#if __GNUC__==4&&__GNUC_MINOR__==3&&__GNUC_PATCHLEVEL__==0
    __TBB_store_with_release( flags[8], 0 );
#else
    flags[8] = 0;
#endif
    __TBB_LockByte(flags[8]);
    for( int i=0; i<16; ++i )
        ASSERT( flags[i]==(i==8?1:i), NULL );
}