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+/* This file is part of Raul.
+ * Copyright (C) 2007 Dave Robillard <http://drobilla.net>
+ * 
+ * Raul 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.
+ * 
+ * Raul 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 RAUL_THREAD_HPP
+#define RAUL_THREAD_HPP
+
+#include <string>
+#include <iostream>
+#include <pthread.h>
+#include <boost/utility.hpp>
+
+namespace Raul {
+
+
+/** Abstract base class for a thread.
+ *
+ * Extend this and override the _run method to easily create a thread
+ * to perform some task.
+ *
+ * The current Thread can be accessed using the get() method.
+ * 
+ * \ingroup raul
+ */
+class Thread : boost::noncopyable
+{
+public:
+	virtual ~Thread() {
+		stop();
+	}
+
+	static Thread* create(const std::string& name="")
+		{ return new Thread(name); }
+	
+	/** Must be called from thread */
+	static Thread* create_for_this_thread(const std::string& name="")
+		{ return new Thread(pthread_self(), name); }
+	
+	static Thread& get();
+
+	virtual void start();
+	virtual void stop();
+
+	void set_scheduling(int policy, unsigned int priority);
+	
+	const std::string& name() { return _name; }
+	void set_name(const std::string& name) { _name = name; }
+	
+	const unsigned context()                     { return _context; }
+	void           set_context(unsigned context) { _context = context; }
+
+protected:
+	Thread(const std::string& name="");
+	Thread(pthread_t thread, const std::string& name="");
+
+	/** Thread function to execute.
+	 *
+	 * This is called once on start, and terminated on stop.
+	 * Implementations likely want to put some infinite loop here.
+	 */
+	virtual void _run() {}
+
+private:
+
+	inline static void* _static_run(void* me) {
+		pthread_setspecific(_thread_key, me);
+		Thread* myself = (Thread*)me;
+		myself->_run();
+		myself->_pthread_exists = false;
+		return NULL; // and I
+	}
+
+	/** Allocate thread-specific data key */
+	static void thread_key_alloc()
+	{
+		pthread_key_create(&_thread_key, NULL);
+	}
+
+	/* Key for the thread-specific buffer */
+	static pthread_key_t _thread_key;
+	
+	/* Once-only initialisation of the key */
+	static pthread_once_t _thread_key_once;
+
+	unsigned    _context;
+	std::string _name;
+	bool        _pthread_exists;
+	pthread_t   _pthread;
+};
+
+
+} // namespace Raul
+
+#endif // RAUL_THREAD_HPP