C++ (Cpp) PhysicalPageSlotPool::IsEmpty Examples

Example #1

File: x86_physical_page_mapper_large_memory.cpp Project: SummerSnail2014/haiku

status_t
LargeMemoryPhysicalPageMapper::GetSlot(bool canWait, PhysicalPageSlot*& slot)
{
	MutexLocker locker(fLock);

	PhysicalPageSlotPool* pool = fNonEmptyPools.Head();
	if (pool == NULL) {
		if (!canWait)
			return B_WOULD_BLOCK;

		// allocate new pool
		locker.Unlock();
		status_t error = fInitialPool->AllocatePool(pool);
		if (error != B_OK)
			return error;
		locker.Lock();

		fNonEmptyPools.Add(pool);
		pool = fNonEmptyPools.Head();
	}

	slot = pool->GetSlot();

	if (pool->IsEmpty()) {
		fNonEmptyPools.Remove(pool);
		fEmptyPools.Add(pool);
	}

	return B_OK;
}

Example #2

File: x86_physical_page_mapper_large_memory.cpp Project: SummerSnail2014/haiku

void
LargeMemoryPhysicalPageMapper::PutSlot(PhysicalPageSlot* slot)
{
	MutexLocker locker(fLock);

	PhysicalPageSlotPool* pool = slot->pool;
	if (pool->IsEmpty()) {
		fEmptyPools.Remove(pool);
		fNonEmptyPools.Add(pool);
	}

	pool->PutSlot(slot);
}