Timer.hh

   1 // Timer.hh for Blackbox - An X11 Window Manager
   2 // Copyright (c) 1997 - 1999 Brad Hughes (bhughes@tcac.net)
   3 //
   4 // Permission is hereby granted, free of charge, to any person obtaining a
   5 // copy of this software and associated documentation files (the "Software"),
   6 // to deal in the Software without restriction, including without limitation
   7 // the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8 // and/or sell copies of the Software, and to permit persons to whom the
   9 // Software is furnished to do so, subject to the following conditions:
  10 //
  11 // The above copyright notice and this permission notice shall be included in
  12 // all copies or substantial portions of the Software.
  13 //
  14 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17 // THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  18 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  19 // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  20 // DEALINGS IN THE SOFTWARE.
  21
  22 #ifndef   __Timer_hh
  23 #define   __Timer_hh
  24
  25 #ifdef    TIME_WITH_SYS_TIME
  26 #  include <sys/time.h>
  27 #  include <time.h>
  28 #else // !TIME_WITH_SYS_TIME
  29 #  ifdef    HAVE_SYS_TIME_H
  30 #    include <sys/time.h>
  31 #  else // !HAVE_SYS_TIME_H
  32 #    include <time.h>
  33 #  endif // HAVE_SYS_TIME_H
  34 #endif // TIME_WITH_SYS_TIME
  35
  36 // forward declaration
  37 class BTimer;
  38 class TimeoutHandler;
  39
  40 #include "BaseDisplay.hh"
  41
  42
  43 class TimeoutHandler {
  44 public:
  45   virtual void timeout(void) = 0;
  46 };
  47
  48
  49 class BTimer {
  50   friend BaseDisplay;
  51 private:
  52   BaseDisplay *display;
  53   TimeoutHandler *handler;
  54   int timing, once;
  55
  56   timeval _start, _timeout;
  57
  58
  59 protected:
  60   void fireTimeout(void);
  61
  62
  63 public:
  64   BTimer(BaseDisplay *, TimeoutHandler *);
  65   virtual ~BTimer(void);
  66
  67   inline int &isTiming(void) { return timing; }
  68   inline int &doOnce(void) { return once; }
  69
  70   inline const timeval &getTimeout(void) const { return _timeout; }
  71   inline const timeval &getStartTime(void) const { return _start; }
  72
  73   inline void fireOnce(int o) { once = o; }
  74
  75   void setTimeout(long);
  76   void setTimeout(timeval);
  77   void start(void);
  78   void stop(void);
  79   void reset(void);
  80 };
  81
  82
  83 #endif // __Timer_hh
  84