kc3-lang/libxkbcommon/bench/bench.c

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• Hash : fe81dcbd
  Author :
  Date : 2016-09-19T10:09:12
  

  bench: fix compilation on hurd Patch by Samuel Thibault. https://github.com/xkbcommon/libxkbcommon/issues/39 Signed-off-by: Ran Benita <ran234@gmail.com>

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• bench/bench.c

• /*
   * Copyright © 2015 Kazunobu Kuriyama <kazunobu.kuriyama@nifty.com>
   *                  Ran Benita <ran234@gmail.com>
   *
   * Permission is hereby granted, free of charge, to any person obtaining a
   * copy of this software and associated documentation files (the "Software"),
   * to deal in the Software without restriction, including without limitation
   * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   * and/or sell copies of the Software, and to permit persons to whom the
   * Software is furnished to do so, subject to the following conditions:
   *
   * The above copyright notice and this permission notice (including the next
   * paragraph) shall be included in all copies or substantial portions of the
   * Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
   * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
   * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
   * DEALINGS IN THE SOFTWARE.
   */
  
  #if defined(HAVE_CLOCK_GETTIME)
  #define USE_CLOCK_GETTIME
  #include <time.h>
  #elif defined(__MACH__) && __MACH__ == 1
  #define USE_MACH_ABSOLUTE_TIME
  #include <mach/mach_time.h>
  #else
  /* gettimeofday() - a last resort */
  #include <sys/time.h>
  #endif
  
  #include <assert.h>
  #include <stdlib.h>
  #include <stdint.h>
  #include <string.h>
  #include <stdio.h>
  
  #include "bench.h"
  
  static void
  set_bench_time(struct bench_time *dest, long seconds, long milliseconds)
  {
      dest->seconds = seconds;
      dest->milliseconds = milliseconds;
  }
  
  static void
  normalize_bench_time(struct bench_time *obj)
  {
      if (obj->milliseconds >= 0) {
          return;
      }
      obj->milliseconds += 1000000;
      obj->seconds--;
  }
  
  void
  bench_timer_reset(struct bench_timer *self)
  {
  #if defined(USE_MACH_ABSOLUTE_TIME)
      mach_timebase_info_data_t info;
      if (mach_timebase_info(&info) == 0) {
          self->scaling_factor = info.numer / info.denom;
      }
  #endif
      self->start.seconds = 0L;
      self->start.milliseconds = 0L;
      self->stop.seconds = 0L;
      self->stop.milliseconds = 0L;
  }
  
  void
  bench_timer_start(struct bench_timer *self)
  {
  #if defined(USE_CLOCK_GETTIME)
      struct timespec val;
  
      (void) clock_gettime(CLOCK_MONOTONIC, &val);
  
      /* With conversion from nanosecond to millisecond */
      set_bench_time(&self->start, val.tv_sec, val.tv_nsec / 1000);
  #elif defined(USE_MACH_ABSOLUTE_TIME)
      uint64_t val;
  
      val = mach_absolute_time();
  
      /* With conversion from nanosecond to millisecond */
      set_bench_time(&self->start,
                     self->scaling_factor * val / 1000000000,
                     self->scaling_factor * val % 1000000000 / 1000);
  #else
      struct timeval val;
  
      (void) gettimeofday(&val, NULL);
  
      set_bench_time(&self->start, val.tv_sec, val.tv_usec);
  #endif
  }
  
  void
  bench_timer_stop(struct bench_timer *self)
  {
  #if defined(USE_CLOCK_GETTIME)
      struct timespec val;
  
      (void) clock_gettime(CLOCK_MONOTONIC, &val);
  
      /* With conversion from nanosecond to millisecond */
      set_bench_time(&self->stop, val.tv_sec, val.tv_nsec / 1000);
  #elif defined(USE_MACH_ABSOLUTE_TIME)
      uint64_t val;
  
      val = mach_absolute_time();
  
      /* With conversion from nanosecond to millisecond */
      set_bench_time(&self->stop,
                     self->scaling_factor * val / 1000000000,
                     self->scaling_factor * val % 1000000000 / 1000);
  #else
      struct timeval val;
  
      (void) gettimeofday(&val, NULL);
  
      set_bench_time(&self->stop, val.tv_sec, val.tv_usec);
  #endif
  }
  
  void
  bench_timer_get_elapsed_time(struct bench_timer *self, struct bench_time *result)
  {
      result->seconds = self->stop.seconds - self->start.seconds;
      result->milliseconds = self->stop.milliseconds - self->start.milliseconds;
  }
  
  char *
  bench_timer_get_elapsed_time_str(struct bench_timer *self)
  {
      struct bench_time elapsed;
      char *buf;
      int ret;
  
      bench_timer_get_elapsed_time(self, &elapsed);
      normalize_bench_time(&elapsed);
      ret = asprintf(&buf, "%ld.%06ld", elapsed.seconds, elapsed.milliseconds);
      assert(ret >= 0);
  
      return buf;
  }
  

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