Added missing file.

git-svn-id: http://svn.drobilla.net/lad@148 a436a847-0d15-0410-975c-d299462d15a1

patchage/src/Mutex.h

@@ -0,0 +1,41 @@
+/* This file is part of Patchage.  Copyright (C) 2006 Dave Robillard.
+ * 
+ * Ingen is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 2 of the License, or (at your option) any later
+ * version.
+ * 
+ * Ingen is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for details.
+ * 
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef MUTEX_H
+#define MUTEX_H
+
+#include <pthread.h>
+
+
+/** Trivial (but pretty) wrapper around POSIX Mutexes (zero memory overhead).
+ */
+class Mutex {
+public:
+	inline Mutex() { pthread_mutex_init(&_mutex, NULL); }
+	
+	inline ~Mutex() { pthread_mutex_destroy(&_mutex); }
+
+	inline bool try_lock() { return (pthread_mutex_trylock(&_mutex) == 0); }
+	inline void lock()     { pthread_mutex_lock(&_mutex); }
+	inline void unlock()   { pthread_mutex_unlock(&_mutex); }
+
+private:
+	friend class Condition;
+	pthread_mutex_t _mutex;
+};
+
+
+#endif // MUTEX_H