--- /dev/null
+# Makefile.in generated automatically by automake 1.4 from Makefile.am
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+# Copyright (C) 1994, 1995-8, 1999 Free Software Foundation, Inc.
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
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+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+// SGThread - Simple pthread class wrappers.
+//
+// Written by Bernie Bright, started April 2001.
+//
+// Copyright (C) 2001 Bernard Bright - bbright@bigpond.net.au
+//
+// This program 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.
+//
+// This program 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 more 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+//
+// $Id$
+
+#ifndef SGTHREAD_HXX_INCLUDED
+#define SGTHREAD_HXX_INCLUDED 1
+
+#include <pthread.h>
+#include <cassert>
+#include <cerrno>
+
+class SGThread;
+
+extern "C" {
+ void* start_handler( void* );
+};
+
+/**
+ * Encapsulate generic threading methods.
+ * Users derive a class from SGThread and implement the run() member function.
+ */
+class SGThread
+{
+public:
+
+ /**
+ *
+ */
+ SGThread();
+
+ /**
+ *
+ */
+ virtual ~SGThread();
+
+ /**
+ *
+ */
+ int start();
+
+ /**
+ *
+ */
+ void cancel();
+
+ /**
+ *
+ */
+ void join();
+
+protected:
+
+ /**
+ *
+ */
+ virtual void run() = 0;
+
+private:
+
+ /**
+ *
+ */
+ pthread_t tid;
+
+ friend void* start_handler( void* );
+
+private:
+ // Disable copying.
+ SGThread( const SGThread& );
+ SGThread& operator=( const SGThread& );
+};
+
+inline
+SGThread::SGThread()
+{
+}
+
+inline
+SGThread::~SGThread()
+{
+}
+
+inline int
+SGThread::start()
+{
+ int status = pthread_create( &tid, 0, start_handler, this );
+ assert( status == 0 );
+ return status;
+}
+
+inline void
+SGThread::join()
+{
+ int status = pthread_join( tid, 0 );
+ assert( status == 0 );
+}
+
+inline void
+SGThread::cancel()
+{
+ int status = pthread_cancel( tid );
+ assert( status == 0 );
+}
+
+/**
+ * A mutex is used to protect a section of code such that at any time
+ * only a single thread can execute the code.
+ */
+class SGMutex
+{
+ friend class SGCondition;
+
+public:
+
+ /**
+ * Create a new mutex.
+ */
+ SGMutex();
+
+ /**
+ * Destroy a mutex object.
+ */
+ ~SGMutex();
+
+ /**
+ *
+ */
+ void lock();
+
+ /**
+ *
+ */
+ bool trylock();
+
+ /**
+ *
+ */
+ void unlock();
+
+protected:
+ pthread_mutex_t mutex;
+};
+
+inline SGMutex::SGMutex()
+{
+ int status = pthread_mutex_init( &mutex, 0 );
+ assert( status == 0 );
+}
+
+inline SGMutex::~SGMutex()
+{
+ int status = pthread_mutex_destroy( &mutex );
+ assert( status == 0 );
+}
+
+inline void SGMutex::lock()
+{
+ int status = pthread_mutex_lock( &mutex );
+ assert( status == 0 );
+}
+
+inline void SGMutex::unlock()
+{
+ int status = pthread_mutex_unlock( &mutex );
+ assert( status == 0 );
+}
+
+/**
+ *
+ */
+class SGCondition
+{
+public:
+ /**
+ * Create a new condition variable.
+ */
+ SGCondition();
+
+ /**
+ * Destroy the condition object.
+ */
+ ~SGCondition();
+
+ /**
+ * Wait for this condition variable to be signaled.
+ *
+ * @param SGMutex& reference to a locked mutex.
+ */
+ void wait( SGMutex& );
+
+ /**
+ * Wait for this condition variable to be signaled for at most
+ * 'ms' milliseconds.
+ *
+ * @param SGMutex& reference to a locked mutex.
+ * @param unsigned long milliseconds to wait for a signal.
+ *
+ * @return
+ */
+ bool wait( SGMutex& mutex, unsigned long ms );
+
+ /**
+ * Wake one thread waiting on this condition variable.
+ */
+ void signal();
+
+ /**
+ * Wake all threads waiting on this condition variable.
+ */
+ void broadcast();
+
+private:
+ // Disable copying.
+ SGCondition(const SGCondition& );
+ SGCondition& operator=(const SGCondition& );
+
+private:
+
+ pthread_cond_t cond;
+};
+
+inline SGCondition::SGCondition()
+{
+ int status = pthread_cond_init( &cond, 0 );
+ assert( status == 0 );
+}
+
+inline SGCondition::~SGCondition()
+{
+ int status = pthread_cond_destroy( &cond );
+ assert( status == 0 );
+}
+
+inline void SGCondition::signal()
+{
+ int status = pthread_cond_signal( &cond );
+ assert( status == 0 );
+}
+
+inline void SGCondition::broadcast()
+{
+ int status = pthread_cond_broadcast( &cond );
+ assert( status == 0 );
+}
+
+inline void SGCondition::wait( SGMutex& mutex )
+{
+ int status = pthread_cond_wait( &cond, &mutex.mutex );
+ assert( status == 0 );
+}
+
+#endif /* SGTHREAD_HXX_INCLUDED */
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