1/************************************************************************** 2 * 3 * Copyright 2008-2010 VMware, Inc. 4 * All Rights Reserved. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the 8 * "Software"), to deal in the Software without restriction, including 9 * without limitation the rights to use, copy, modify, merge, publish, 10 * distribute, sub license, and/or sell copies of the Software, and to 11 * permit persons to whom the Software is furnished to do so, subject to 12 * the following conditions: 13 * 14 * The above copyright notice and this permission notice (including the 15 * next paragraph) shall be included in all copies or substantial portions 16 * of the Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 21 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR 22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 25 * 26 **************************************************************************/ 27 28/** 29 * @file 30 * OS independent time-manipulation functions. 31 * 32 * @author Jose Fonseca <jfonseca@vmware.com> 33 */ 34 35 36#include "pipe/p_config.h" 37 38#if defined(PIPE_OS_UNIX) 39# include <sys/time.h> /* timeval */ 40#elif defined(PIPE_SUBSYSTEM_WINDOWS_USER) 41# include <windows.h> 42#else 43# error Unsupported OS 44#endif 45 46#include "os_time.h" 47 48 49int64_t 50os_time_get(void) 51{ 52#if defined(PIPE_OS_UNIX) 53 54 struct timeval tv; 55 gettimeofday(&tv, NULL); 56 return tv.tv_usec + tv.tv_sec*1000000LL; 57 58#elif defined(PIPE_SUBSYSTEM_WINDOWS_USER) 59 60 static LARGE_INTEGER frequency; 61 LARGE_INTEGER counter; 62 if(!frequency.QuadPart) 63 QueryPerformanceFrequency(&frequency); 64 QueryPerformanceCounter(&counter); 65 return counter.QuadPart*INT64_C(1000000)/frequency.QuadPart; 66 67#endif 68} 69 70 71#if defined(PIPE_SUBSYSTEM_WINDOWS_USER) 72 73void 74os_time_sleep(int64_t usecs) 75{ 76 Sleep((usecs + 999) / 1000); 77} 78 79#endif 80