1 // 2 // Copyright © 2019 Jamie Madill 3 // 4 // This file is part of the glmark2 OpenGL (ES) 2.0 benchmark. 5 // 6 // glmark2 is free software: you can redistribute it and/or modify it under the 7 // terms of the GNU General Public License as published by the Free Software 8 // Foundation, either version 3 of the License, or (at your option) any later 9 // version. 10 // 11 // glmark2 is distributed in the hope that it will be useful, but WITHOUT ANY 12 // WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS 13 // FOR A PARTICULAR PURPOSE. See the GNU General Public License for more 14 // details. 15 // 16 // You should have received a copy of the GNU General Public License along with 17 // glmark2. If not, see <http://www.gnu.org/licenses/>. 18 // 19 // Authors: 20 // Jamie Madill 21 // 22 // From Stack Overflow under Create Commons license: 23 // https://stackoverflow.com/a/31335254 24 25 #ifndef SYS_TIME_H_FOR_WINDOWS_ 26 #define SYS_TIME_H_FOR_WINDOWS_ 27 28 #ifdef _WIN32 29 #include <time.h> 30 #include <windows.h> 31 #define CLOCK_MONOTONIC 0 clock_gettime(int,struct timespec * spec)32inline int clock_gettime(int, struct timespec *spec) 33 { 34 __int64 wintime; 35 GetSystemTimeAsFileTime((FILETIME*)&wintime); 36 wintime -= 116444736000000000i64; // 1601 to 1970 37 spec->tv_sec = wintime / 10000000i64; // seconds 38 spec->tv_nsec = wintime % 10000000i64 *100; // nanoseconds 39 return 0; 40 } 41 #else 42 #include <sys/time.h> 43 #endif 44 45 #endif // SYS_TIME_H_FOR_WINDOWS_ 46