Implementation of Timer for UN*X based OSes.

src/unixtimer.cpp

@@ -0,0 +1,54 @@
+// unixtimer.h
+// 
+// Copyright (C) 2001, Chris Laurel <claurel@shatters.net>
+//
+// 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.
+
+
+#include <sys/time.h>
+#include <unistd.h>
+#include "timer.h"
+
+class UnixTimer : public Timer
+{
+public:
+    UnixTimer();
+    ~UnixTimer();
+    double getTime() const;
+    void reset();
+
+private:
+    double start;
+};
+
+
+UnixTimer::UnixTimer()
+{
+    reset();
+}
+
+UnixTimer::~UnixTimer()
+{
+}
+
+double UnixTimer::getTime() const
+{
+    struct timeval t;
+    gettimeofday(&t, NULL);
+    return (double) t.tv_sec + (double) t.tv_usec / 1000000.0 - start;
+}
+
+void UnixTimer::reset()
+{
+    struct timeval t;
+    gettimeofday(&t, NULL);
+    start = (double) t.tv_sec + (double) t.tv_usec / 1000000.0;
+}
+
+Timer* CreateTimer()
+{
+    return new UnixTimer();
+}