Exemplos de CFileWatcher em C++ (Cpp)

Exemplo n.º 1

Arquivo: cfilewatcher.cpp Projeto: charles-cai/iisnode

unsigned int CFileWatcher::Worker(void* arg)
{
	CFileWatcher* watcher = (CFileWatcher*)arg;
	DWORD error;
	DWORD bytes;
	ULONG_PTR key;
	LPOVERLAPPED overlapped;

	while (TRUE)
	{
		error = S_OK;
		if (!GetQueuedCompletionStatus(
			watcher->completionPort, &bytes, &key, &overlapped, watcher->uncFileSharePollingInterval))
		{
			error = GetLastError();
		}

		if (-1L == key) // terminate thread
		{
			break;
		}
		else if (S_OK == error) // a change in registered directory detected (local file system)
		{
			WatchedDirectory* directory = (WatchedDirectory*)key;
			
			watcher->ScanDirectory(directory, FALSE);

			RtlZeroMemory(&directory->overlapped, sizeof directory->overlapped);
			ReadDirectoryChangesW(
				directory->watchHandle,
				&directory->info,
				sizeof directory->info,
				FALSE,
				FILE_NOTIFY_CHANGE_LAST_WRITE,
				NULL,
				&directory->overlapped,
				NULL);
		}
		else // timeout - scan all registered UNC files for changes
		{
			WatchedDirectory* current = watcher->directories;
			while (current)
			{
				watcher->ScanDirectory(current, TRUE);
				current = current->next;
			}
		}		
	}

	return 0;
}

Exemplo n.º 2

Arquivo: cfilewatcher.cpp Projeto: Cahya/iisnode

unsigned int CFileWatcher::Worker(void* arg)
{
	CFileWatcher* watcher = (CFileWatcher*)arg;
	DWORD error;
	DWORD bytes;
	ULONG_PTR key;
	LPOVERLAPPED overlapped;

	while (TRUE)
	{
		error = S_OK;
		if (!GetQueuedCompletionStatus(
			watcher->completionPort, &bytes, &key, &overlapped, watcher->uncFileSharePollingInterval))
		{
			error = GetLastError();
		}

		if (-1L == key) // terminate thread
		{
			break;
		}
		else if (S_OK == error) // a change in registered directory detected (local file system)
		{
			WatchedDirectory* directory = (WatchedDirectory*)key;
			
			ENTER_CS(watcher->syncRoot)

			// make sure the directory is still watched

			WatchedDirectory* current = watcher->directories;
			while (current && current != directory)
				current = current->next;

			if (current)
			{
				watcher->ScanDirectory(current, FALSE);

				// make sure the directory is still watched - it could have been removed by a recursive call to RemoveWatch

				current = watcher->directories;
				while (current && current != directory)
					current = current->next;

				if (current)
				{
					RtlZeroMemory(&current->overlapped, sizeof current->overlapped);
					ReadDirectoryChangesW(
						current->watchHandle,
						&current->info,
						sizeof directory->info,
						FALSE,
						FILE_NOTIFY_CHANGE_LAST_WRITE,
						NULL,
						&current->overlapped,
						NULL);
				}
			}

			LEAVE_CS(watcher->syncRoot)
		}
		else // timeout - scan all registered UNC files for changes
		{