Esempio n. 1
0
/**
 * Allocate and initialize the receivers internal structures.
 * @return true on success, false on failure.
 */
bool
MM_ParallelSweepChunkArray::initialize(MM_EnvironmentBase* env, bool useVmem)
{
	bool result = false;
	MM_GCExtensionsBase* extensions = env->getExtensions();

	_useVmem = useVmem;

	if (extensions->isFvtestForceSweepChunkArrayCommitFailure()) {
		Trc_MM_SweepHeapSectioning_parallelSweepChunkArrayCommitFailureForced(env->getLanguageVMThread());
	} else {
		if (useVmem) {
			MM_MemoryManager* memoryManager = extensions->memoryManager;
			if (memoryManager->createVirtualMemoryForMetadata(env, &_memoryHandle, extensions->heapAlignment, _size * sizeof(MM_ParallelSweepChunk))) {
				void* base = memoryManager->getHeapBase(&_memoryHandle);
				result = memoryManager->commitMemory(&_memoryHandle, base, _size * sizeof(MM_ParallelSweepChunk));
				if (!result) {
					Trc_MM_SweepHeapSectioning_parallelSweepChunkArrayCommitFailed(env->getLanguageVMThread(), base, _size * sizeof(MM_ParallelSweepChunk));
				}
				_array = (MM_ParallelSweepChunk*)base;
			}
		} else {
			if (0 != _size) {
				_array = (MM_ParallelSweepChunk*)env->getForge()->allocate(_size * sizeof(MM_ParallelSweepChunk), MM_AllocationCategory::FIXED, OMR_GET_CALLSITE());
				result = (NULL != _array);
			} else {
				result = true;
			}
		}
	}
	return result;
}
Esempio n. 2
0
/**
 * Commit the address range into physical memory.
 * @return true if successful, false otherwise.
 * @note This is a bit of a strange function to have as public API.  Should it be removed?
 */
bool
MM_HeapVirtualMemory::commitMemory(void* address, uintptr_t size)
{
	MM_GCExtensionsBase* extensions = MM_GCExtensionsBase::getExtensions(_omrVM);
	MM_MemoryManager* memoryManager = extensions->memoryManager;
	return memoryManager->commitMemory(&_vmemHandle, address, size);
}