c_cpp/coverages/timer.h

   1 // by Hu Xuesong
   2 #ifndef _G_TIMER_H
   3 #define _G_TIMER_H
   4
   5 #include <sys/time.h>   //getrusage, gettimeofday
   6 #include <sys/resource.h>
   7
   8 #ifdef __cplusplus
   9 extern "C" {
  10 #endif
  11
  12 struct timeval __g_timeofday_start, __g_timeofday_end, __g_timeofday_diff,\
  13        __g_resource_usage_tmp,__g_resource_usage_other_time;
  14 struct rusage __g_resource_usage;
  15
  16 #define G_TIMER_START \
  17     gettimeofday(&__g_timeofday_start,NULL)
  18
  19 #define G_TIMER_END \
  20     do {\
  21         getrusage(RUSAGE_SELF, &__g_resource_usage);\
  22         gettimeofday(&__g_timeofday_end,NULL);\
  23         timersub(&__g_timeofday_end,&__g_timeofday_start,&__g_timeofday_diff);\
  24         timersub(&__g_timeofday_diff,&__g_resource_usage.ru_utime,&__g_resource_usage_tmp);\
  25         timersub(&__g_resource_usage_tmp,&__g_resource_usage.ru_stime,&__g_resource_usage_other_time);\
  26     } while (0)
  27
  28 #define __G_TIMER_PRINT(__sustype__) \
  29     fprintf(stderr,"\n--------------------------------------------------------------------------------\n"\
  30         "Resource Usage Measures:\n"\
  31         "   User: %ld."__sustype__"(s), System: %ld."__sustype__"(s). Real: %ld."__sustype__"(s).\n"\
  32         "   Sleep: %ld."__sustype__"(s). Block I/O times: %ld/%ld. MaxRSS: %ld kiB.\n"\
  33         "   Wait(s): %ld(nvcsw) + %ld(nivcsw). "\
  34         "Page Fault(s): %ld(minflt) + %ld(majflt).\n",\
  35         __g_resource_usage.ru_utime.tv_sec, __g_resource_usage.ru_utime.tv_usec,\
  36         __g_resource_usage.ru_stime.tv_sec, __g_resource_usage.ru_stime.tv_usec,\
  37         __g_timeofday_diff.tv_sec, __g_timeofday_diff.tv_usec,\
  38         __g_resource_usage_other_time.tv_sec, __g_resource_usage_other_time.tv_usec,\
  39         __g_resource_usage.ru_inblock, __g_resource_usage.ru_oublock,\
  40         __g_resource_usage.ru_maxrss,\
  41         __g_resource_usage.ru_nvcsw, __g_resource_usage.ru_nivcsw,\
  42         __g_resource_usage.ru_minflt, __g_resource_usage.ru_majflt)
  43
  44 #ifdef __linux__
  45         #define G_TIMER_PRINT __G_TIMER_PRINT("%06ld")
  46 #elif __APPLE__
  47         #define G_TIMER_PRINT __G_TIMER_PRINT("%06d")
  48 #else
  49 #   error "Unknown compiler !"
  50 #endif
  51
  52 #ifdef __cplusplus
  53 }
  54 #endif
  55
  56 #endif /* timer.h */