OLD | NEW |
(Empty) | |
| 1 // Copyright 2015 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the Chromium LICENSE file. |
| 4 |
| 5 #ifndef TESTS_TIMING_H |
| 6 #define TESTS_TIMING_H |
| 7 |
| 8 #include <assert.h> |
| 9 #if defined(_WIN32) |
| 10 #include <windows.h> |
| 11 #else |
| 12 #include <sys/time.h> |
| 13 #endif |
| 14 #include <time.h> |
| 15 |
| 16 #if defined(_WIN32) |
| 17 |
| 18 static double seconds() |
| 19 { |
| 20 static double clock_frequency; |
| 21 static bool have_frequency; |
| 22 |
| 23 LARGE_INTEGER qpc; |
| 24 QueryPerformanceCounter(&qpc); |
| 25 if (have_frequency) |
| 26 return qpc.QuadPart * clock_frequency; |
| 27 |
| 28 have_frequency = true; |
| 29 QueryPerformanceFrequency(&qpc); |
| 30 clock_frequency = 1.0 / (double) qpc.QuadPart; |
| 31 return seconds(); |
| 32 } |
| 33 |
| 34 #else |
| 35 |
| 36 static double seconds() |
| 37 { |
| 38 struct timeval now; |
| 39 gettimeofday(&now, 0); |
| 40 return now.tv_sec + now.tv_usec * (1.0 / 1000000.0); |
| 41 } |
| 42 |
| 43 #endif |
| 44 |
| 45 #define TIME(function, time) do { \ |
| 46 double start = seconds(); \ |
| 47 (function); \ |
| 48 *time += seconds() - start; \ |
| 49 } while (0) |
| 50 |
| 51 #endif // TESTS_TIMING_H |
OLD | NEW |