1 /* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
3 * Data Differential YATL (i.e. libtest) library
5 * Copyright (C) 2012 Data Differential, http://datadifferential.com/
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8 * modification, are permitted provided that the following conditions are
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19 * * The names of its contributors may not be used to endorse or
20 * promote products derived from this software without specific prior
23 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
24 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
25 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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44 # include <mach/clock.h>
45 # include <mach/mach.h>
48 # include <sys/time.h>
77 void offset(int64_t minutes_arg, int64_t seconds_arg, int64_t nanoseconds)
81 _end.tv_sec+= (minutes_arg * 60) +seconds_arg;
82 _end.tv_nsec+= nanoseconds;
87 struct timespec result;
89 return int64_t(result.tv_sec / 60);
92 uint64_t elapsed_milliseconds() const
97 return temp.tv_sec*1000 +temp.tv_nsec/1000000;
100 void difference(struct timespec& arg) const
102 if ((_end.tv_nsec -_begin.tv_nsec) < 0)
104 arg.tv_sec= _end.tv_sec -_begin.tv_sec -1;
105 arg.tv_nsec= 1000000000 +_end.tv_nsec -_begin.tv_nsec;
110 arg.tv_sec= _end.tv_sec -_begin.tv_sec;
111 arg.tv_nsec= _end.tv_nsec -_begin.tv_nsec;
116 void _time(struct timespec& ts)
118 #ifdef __MACH__ // OSX lacks clock_gettime()
119 clock_serv_t _clock_serv;
120 mach_timespec_t _mach_timespec;
121 host_get_clock_service(mach_host_self(), CALENDAR_CLOCK, &_clock_serv);
122 clock_get_time(_clock_serv, &_mach_timespec);
123 mach_port_deallocate(mach_task_self(), _clock_serv);
124 ts.tv_sec= _mach_timespec.tv_sec;
125 ts.tv_nsec= _mach_timespec.tv_nsec;
126 #elif defined(HAVE_CLOCK_GETTIME) && HAVE_CLOCK_GETTIME
130 ret= clock_gettime(CLOCK_REALTIME, &ts);
132 #elif defined(HAVE_GETTIMEOFDAY) && HAVE_GETTIMEOFDAY
137 ret= gettimeofday(&tv, NULL)
139 /* Convert from timeval to timespec */
140 ts.tv_sec= tv.tv_sec;
141 ts.tv_nsec= tv.tv_usec * 1000;
143 memset(&ts, 0, sizeof(struct timespec));
148 struct timespec _begin;
149 struct timespec _end;
152 std::ostream& operator<<(std::ostream& output, const libtest::Timer& arg);
154 } // namespace libtest