new timer class

[chaz/yoink] / src / Moof / Timer.hh

diff --git a/src/Moof/Timer.hh b/src/Moof/Timer.hh
index 340f79fa15b53b8d762ae730687eaca147315817..6c1af5615a6426913eac86788a46b9e02116bbd4 100644 (file)
--- a/src/Moof/Timer.hh
+++ b/src/Moof/Timer.hh
@@ -34,30 +34,96 @@
  * Functions for measuring time in a friendly unit.
  */
 
+#include <map>
+
+#include <boost/bind.hpp>
+#include <boost/function.hpp>
+
 #include <Moof/Math.hh>
 
 
 namespace Mf {
 
 
-/**
- * Get the number of seconds since a fixed, arbitrary point in the past.
- * @return Seconds.
- */
+struct Timer
+{
+       enum Mode
+       {
+               INVALID         = -1,
+               NORMAL          =  0,
+               ABSOLUTEE       =  1,   // the ABSOLUTE keyword isn't available on win32...
+               REPEAT          =  2
+       };
 
-Scalar getTicks();
+       typedef boost::function<void(Timer&,Scalar)> Function;
 
 
-/**
- * Put the thread to sleep for a certain period of time.  If absolute is true,
- * then it will sleep until seconds after the fixed time in the past.  If
- * absolute is false, it will sleep for seconds starting now.  Unlike system
- * sleep functions, this one automatically resumes sleep if sleep was
- * interrupted by a signal.  Therefore, calling this function is guaranteed to
- * sleep for the requested amount of time.
- */
+       Timer() :
+               mode_(INVALID) {}
+
+       Timer(const Function& function, Scalar seconds, Mode mode = NORMAL)
+       {
+               init(function, seconds, mode);
+       }
+
+       ~Timer()
+       {
+               invalidate();
+       }
+
+       void init(const Function& function, Scalar seconds, Mode mode = NORMAL);
+
+       bool isValid() const;
+       void invalidate();
+
+       void fire();
+
+       Scalar getSecondsRemaining() const;
+       bool isExpired() const;
+       bool isRepeating() const;
+
+
+       /**
+        * Get the number of seconds since a fixed, arbitrary point in the past.
+        * @return Seconds.
+        */
+
+       static Scalar getTicks();
+
+
+       /**
+        * Put the thread to sleep for a certain period of time.  If absolute is true,
+        * then it will sleep until seconds after the fixed time in the past.  If
+        * absolute is false, it will sleep for seconds starting now.  Unlike system
+        * sleep functions, this one automatically resumes sleep if sleep was
+        * interrupted by a signal.  Therefore, calling this function is guaranteed to
+        * sleep for the requested amount of time (and maybe longer).
+        */
+
+       static void sleep(Scalar seconds, bool absolute = false);
+
+
+       static Scalar getNextFire()
+       {
+               return nextFire_;
+       }
+
+       static void fireIfExpired(Scalar t);
+
+private:
+
+       static unsigned getNewID();
+       static Scalar findNextFire();
+
+       Function        function_;
+       Mode            mode_;
+       Scalar          absolute_;
+       Scalar          interval_;
+       unsigned        id_;
 
-void sleep(Scalar seconds, bool absolute = false);
+       static Scalar                                           nextFire_;
+       static std::map<unsigned,Timer&>        timers_;
+};
 
 
 } // namespace Mf