forked from KolibriOS/kolibrios
95 lines
2.6 KiB
C
95 lines
2.6 KiB
C
/**************************************************************************
|
|
*
|
|
* Copyright 2008-2010 VMware, Inc.
|
|
* All Rights Reserved.
|
|
*
|
|
* 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, sub license, 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 NON-INFRINGEMENT.
|
|
* IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS 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.
|
|
*
|
|
**************************************************************************/
|
|
|
|
/**
|
|
* @file
|
|
* OS independent time-manipulation functions.
|
|
*
|
|
* @author Jose Fonseca <jfonseca@vmware.com>
|
|
*/
|
|
|
|
|
|
#include "pipe/p_config.h"
|
|
|
|
#if defined(PIPE_OS_UNIX)
|
|
# include <time.h> /* timeval */
|
|
# include <sys/time.h> /* timeval */
|
|
#elif defined(PIPE_SUBSYSTEM_WINDOWS_USER)
|
|
# include <windows.h>
|
|
#else
|
|
# error Unsupported OS
|
|
#endif
|
|
|
|
#include "os_time.h"
|
|
|
|
|
|
int64_t
|
|
os_time_get_nano(void)
|
|
{
|
|
#if defined(PIPE_OS_LINUX)
|
|
|
|
struct timespec tv;
|
|
clock_gettime(CLOCK_MONOTONIC, &tv);
|
|
return tv.tv_nsec + tv.tv_sec*INT64_C(1000000000);
|
|
|
|
#elif defined(PIPE_OS_UNIX)
|
|
|
|
struct timeval tv;
|
|
gettimeofday(&tv, NULL);
|
|
return tv.tv_usec*INT64_C(1000) + tv.tv_sec*INT64_C(1000000000);
|
|
|
|
#elif defined(PIPE_SUBSYSTEM_WINDOWS_USER)
|
|
|
|
static LARGE_INTEGER frequency;
|
|
LARGE_INTEGER counter;
|
|
if(!frequency.QuadPart)
|
|
QueryPerformanceFrequency(&frequency);
|
|
QueryPerformanceCounter(&counter);
|
|
return counter.QuadPart*INT64_C(1000000000)/frequency.QuadPart;
|
|
|
|
#else
|
|
|
|
#error Unsupported OS
|
|
|
|
#endif
|
|
}
|
|
|
|
|
|
#if defined(PIPE_SUBSYSTEM_WINDOWS_USER)
|
|
|
|
void
|
|
os_time_sleep(int64_t usecs)
|
|
{
|
|
DWORD dwMilliseconds = (DWORD) ((usecs + 999) / 1000);
|
|
/* Avoid Sleep(O) as that would cause to sleep for an undetermined duration */
|
|
if (dwMilliseconds) {
|
|
Sleep(dwMilliseconds);
|
|
}
|
|
}
|
|
|
|
#endif
|