WDL/timing2.h

   1 #ifndef _WDL_TIMING2_H_
   2 #define _WDL_TIMING2_H_
   3
   4 #if defined(_DEBUG) || defined(WDL_TIMING_ENABLE_FOR_RELEASE)
   5 #include "time_precise.h"
   6 #endif
   7
   8 class wdl_timing_accumulator
   9 {
  10 public:
  11
  12 #if defined(_DEBUG) || defined(WDL_TIMING_ENABLE_FOR_RELEASE)
  13
  14   wdl_timing_accumulator(const char *name=NULL)
  15   {
  16     m_cnt=0;
  17     m_tot=m_cur=0.0;
  18     m_name = name ? name : "[unnamed]";
  19     m_depth = 0;
  20   }
  21   ~wdl_timing_accumulator()
  22   {
  23     Report("final");
  24   }
  25
  26   void Report(const char *caption=NULL) const
  27   {
  28     if (m_cnt)
  29     {
  30       const double usec=1000000.0;
  31       wdl_log_force("timing %s%s%s%s: %.0f calls, %.0f usec/call, %.0f usec total\n",
  32         m_name, caption ? " (" : "", caption ? caption : "", caption ? ")" : "",
  33         (double)m_cnt, m_tot*usec/(double)m_cnt, m_tot*usec);
  34     }
  35   }
  36
  37   void Begin()
  38   {
  39     if (!m_depth++)
  40       m_cur = time_precise();
  41   }
  42   void End()
  43   {
  44     WDL_ASSERT(m_depth > 0);
  45     if (!--m_depth)
  46     {
  47       WDL_ASSERT(m_cur != 0.0);
  48       m_tot += time_precise()-m_cur;
  49       m_cur=0.0;
  50       m_cnt++;
  51     }
  52   }
  53
  54 private:
  55   WDL_INT64 m_cnt;
  56   double m_tot, m_cur;
  57   const char *m_name;
  58   int m_depth;
  59 #else
  60
  61   wdl_timing_accumulator(const char *name=NULL) {}
  62   ~wdl_timing_accumulator() {}
  63   void Report(const char *caption=NULL) {}
  64   void Begin() {}
  65   void End() {}
  66
  67 #endif
  68 };
  69
  70 class wdl_timing_accumulator_hold
  71 {
  72   public:
  73 #if defined(_DEBUG) || defined(WDL_TIMING_ENABLE_FOR_RELEASE)
  74     wdl_timing_accumulator_hold(wdl_timing_accumulator *p) : m_p(p) { if (p) p->Begin(); }
  75     ~wdl_timing_accumulator_hold() { if (m_p) m_p->End(); }
  76     wdl_timing_accumulator *m_p;
  77 #else
  78     wdl_timing_accumulator_hold(wdl_timing_accumulator *p) {}
  79 #endif
  80 };
  81
  82 #endif