Move things round a bit.

1 files changed, 78 insertions, 0 deletions

diff --git a/src/lib/timer.h b/src/lib/timer.h
new file mode 100644
index 000000000..f509a7492
--- /dev/null
+++ b/src/lib/timer.h
@@ -0,0 +1,78 @@
+/*
+    Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
+    Copyright (C) 2000-2007 Paul Davis
+
+    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.
+
+*/
+
+/** @file src/timer.h
+ *  @brief Some timing classes for debugging and profiling.
+ */
+
+#ifndef DVDOMATIC_TIMER_H
+#define DVDOMATIC_TIMER_H
+
+#include <string>
+#include <map>
+#include <sys/time.h>
+
+/** @class PeriodTimer
+ *  @brief A class to allow timing of a period within the caller.
+ *
+ *  On destruction, it will output the time since its construction.
+ */
+class PeriodTimer
+{
+public:
+	PeriodTimer (std::string n);
+	~PeriodTimer ();
+	
+private:
+
+	/** name to use when giving output */
+	std::string _name;
+	/** time that this class was constructed */
+	struct timeval _start;
+};
+
+/** @class StateTimer
+ *  @brief A class to allow measurement of the amount of time a program
+ *  spends in one of a set of states.
+ *
+ *  Once constructed, the caller can call set_state() whenever
+ *  its state changes.  When StateTimer is destroyed, it will
+ *  output (to cout) a summary of the time spent in each state.
+ */
+class StateTimer
+{
+public:
+	StateTimer (std::string n, std::string s);
+	~StateTimer ();
+
+	void set_state (std::string s);
+
+private:
+	/** name to add to the output */
+	std::string _name;
+	/** current state */
+	std::string _state;
+	/** time that _state was entered */
+	double _time;
+	/** time that has been spent in each state so far */
+	std::map<std::string, double> _totals;
+};
+
+#endif