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diff --git a/src/uscxml/plugins/invoker/filesystem/dirmon/FileWatcher/FileWatcherOSX.h b/src/uscxml/plugins/invoker/filesystem/dirmon/FileWatcher/FileWatcherOSX.h
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index 0000000..39f411c
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+++ b/src/uscxml/plugins/invoker/filesystem/dirmon/FileWatcher/FileWatcherOSX.h
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+/**
+	Implementation header file for OSX based on KEvent.
+
+	@author James Wynn
+	@date 4/15/2009
+
+	Copyright (c) 2009 James Wynn (james@jameswynn.com)
+
+	Permission is hereby granted, free of charge, to any person obtaining a copy
+	of this software and associated documentation files (the "Software"), to deal
+	in the Software without restriction, including without limitation the rights
+	to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+	copies of the Software, and to permit persons to whom the Software is
+	furnished to do so, subject to the following conditions:
+
+	The above copyright notice and this permission notice shall be included in
+	all copies or substantial portions of the Software.
+
+	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+	IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+	FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+	AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+	LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+	OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+	THE SOFTWARE.
+*/
+#ifndef _FW_FILEWATCHEROSX_H_
+#define _FW_FILEWATCHEROSX_H_
+#pragma once
+
+#include "FileWatcherImpl.h"
+
+#if FILEWATCHER_PLATFORM == FILEWATCHER_PLATFORM_KQUEUE
+
+#include <map>
+#include <sys/types.h>
+
+namespace FW {
+/// Implementation for OSX based on kqueue.
+/// @class FileWatcherOSX
+class FileWatcherOSX : public FileWatcherImpl {
+public:
+	/// type for a map from WatchID to WatchStruct pointer
+	typedef std::map<WatchID, WatchStruct*> WatchMap;
+
+public:
+	///
+	///
+	FileWatcherOSX();
+
+	///
+	///
+	virtual ~FileWatcherOSX();
+
+	/// Add a directory watch
+	/// @exception FileNotFoundException Thrown when the requested directory does not exist
+	WatchID addWatch(const String& directory, FileWatchListener* watcher, bool recursive);
+
+	/// Remove a directory watch. This is a brute force lazy search O(nlogn).
+	void removeWatch(const String& directory);
+
+	/// Remove a directory watch. This is a map lookup O(logn).
+	void removeWatch(WatchID watchid);
+
+	/// Updates the watcher. Must be called often.
+	void update();
+
+	/// Handles the action
+	void handleAction(WatchStruct* watch, const String& filename, unsigned long action);
+
+private:
+	/// Map of WatchID to WatchStruct pointers
+	WatchMap mWatches;
+	/// The descriptor for the kqueue
+	int mDescriptor;
+	/// time out data
+	struct timespec mTimeOut;
+	/// WatchID allocator
+	int mLastWatchID;
+
+};//end FileWatcherOSX
+
+};//namespace FW
+
+#endif//__APPLE_CC__
+
+#endif//_FW_FILEWATCHEROSX_H_