Пример #1
0
bool
mutex_lock(mutex_t* mutex) {
#if !BUILD_DEPLOY
	profile_trylock(mutex->name.str, mutex->name.length);
#endif

#if FOUNDATION_PLATFORM_WINDOWS
	EnterCriticalSection((CRITICAL_SECTION*)mutex->csection);
#elif FOUNDATION_PLATFORM_POSIX || FOUNDATION_PLATFORM_PNACL
	if (pthread_mutex_lock(&mutex->mutex) != 0) {
		FOUNDATION_ASSERT_FAILFORMAT("unable to lock mutex %s", mutex->name.str);
		return false;
	}
#else
#  error mutex_lock not implemented
#endif
#if !BUILD_DEPLOY
	profile_lock(mutex->name.str, mutex->name.length);
#endif

	FOUNDATION_ASSERT_MSGFORMAT(!mutex->lockcount ||
	                            (thread_id() == mutex->lockedthread),
	                            "Mutex lock acquired with lockcount > 0 (%d) and locked thread not self (%" PRIx64 " != %" PRIx64
	                            ")", mutex->lockcount, mutex->lockedthread, thread_id());
	if (!mutex->lockcount)
		mutex->lockedthread = thread_id();
	++mutex->lockcount;

	return true;
}
Пример #2
0
objectmap_t* objectmap_allocate( unsigned int size )
{
	uint64_t bits;
	unsigned int ip;
	uintptr_t next_indexshift;
	objectmap_t* map;
	void** slot;

	FOUNDATION_ASSERT_MSG( size > 2, "Invalid objectmap size" );
	if( size <= 2 )
		size = 2;
	bits = math_round( math_log2( (real)size ) ); //Number of bits needed
	FOUNDATION_ASSERT_MSGFORMAT( bits < 50, "Invalid objectmap size %d", size );

	//Top two bits unused for Lua compatibility
	map = memory_allocate_zero( sizeof( objectmap_t ) + ( sizeof( void* ) * size ), 16, MEMORY_PERSISTENT );
	map->size_bits   = bits;
	map->id_max      = ((1ULL<<(62ULL-bits))-1);
	map->size        = size;
	map->mask_index  = ((1ULL<<bits)-1ULL);
	map->mask_id     = ( 0x3FFFFFFFFFFFFFFFULL & ~map->mask_index );
	atomic_store64( &map->free, 0 );
	atomic_store64( &map->id, 1 );

	slot = map->map;
	for( ip = 0, next_indexshift = 3; ip < ( size - 1 ); ++ip, next_indexshift += 2, ++slot )
		*slot = (void*)next_indexshift;
	*slot = (void*)((uintptr_t)-1);
	
	return map;
}
Пример #3
0
size_t
render_vertex_decl_calculate_size(const render_vertex_decl_t* decl) {
	size_t size = 0;
	for (unsigned int i = 0; i < decl->num_attributes; ++i) {
		FOUNDATION_ASSERT_MSGFORMAT(decl->attribute[i].format <= VERTEXFORMAT_UNKNOWN,
		                            "Invalid vertex format type %d index %d", decl->attribute[i].format, i);
		size_t end = decl->attribute[i].offset + _vertex_format_size[ decl->attribute[i].format ];
		if (end > size)
			size = end;
	}
	return size;
}