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// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// This module provides a way to monitor a directory for changes.
#ifndef BASE_DIRECTORY_WATCHER_H_
#define BASE_DIRECTORY_WATCHER_H_
#include <string>
#include "base/basictypes.h"
#include "base/ref_counted.h"
class FilePath;
// This class lets you register interest in changes on a directory.
// The delegate will get called whenever a file is added or changed in the
// directory.
class DirectoryWatcher {
public:
class Delegate {
public:
virtual void OnDirectoryChanged(const FilePath& path) = 0;
};
DirectoryWatcher();
~DirectoryWatcher();
// Register interest in any changes in the directory |path|.
// OnDirectoryChanged will be called back for each change within the dir.
// Returns false on error.
bool Watch(const FilePath& path, Delegate* delegate);
private:
class Impl;
friend class Impl;
scoped_refptr<Impl> impl_;
DISALLOW_COPY_AND_ASSIGN(DirectoryWatcher);
};
#endif // BASE_DIRECTORY_WATCHER_H_
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