/* * QEMU System Emulator * * Copyright (c) 2003-2008 Fabrice Bellard * * 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 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. */ #include "qemu/osdep.h" #include "qemu/timer.h" /***********************************************************/ /* real time host monotonic timer */ #ifdef _WIN32 int64_t clock_freq; void init_get_clock(void) { LARGE_INTEGER freq; int ret = QueryPerformanceFrequency(&freq); if (ret == 0) { fprintf(stderr, "Could not calibrate ticks\n"); exit(1); } clock_freq = freq.QuadPart; } #else int use_rt_clock; void init_get_clock(void) { struct timespec ts; use_rt_clock = 0; if (clock_gettime(CLOCK_MONOTONIC, &ts) == 0) { use_rt_clock = 1; } } #endif