1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
|
/**************************************************************************
*
* 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(void)
{
#if defined(PIPE_OS_UNIX)
struct timeval tv;
gettimeofday(&tv, NULL);
return tv.tv_usec + tv.tv_sec*1000000LL;
#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(1000000)/frequency.QuadPart;
#endif
}
uint64_t
os_time_get_nano(void)
{
#if defined(PIPE_OS_UNIX)
struct timespec tv;
clock_gettime(CLOCK_REALTIME, &tv);
return tv.tv_nsec + tv.tv_sec * 1000000000LL;
#elif defined(PIPE_SUBSYSTEM_WINDOWS_USER)
return os_time_get() * 1000;
#endif
}
#if defined(PIPE_SUBSYSTEM_WINDOWS_USER)
void
os_time_sleep(int64_t usecs)
{
DWORD dwMilliseconds = (usecs + 999) / 1000;
/* Avoid Sleep(O) as that would cause to sleep for an undetermined duration */
if (dwMilliseconds) {
Sleep(dwMilliseconds);
}
}
#endif
|
