1 | /***************************************************************************
|
---|
2 | * _ _ ____ _
|
---|
3 | * Project ___| | | | _ \| |
|
---|
4 | * / __| | | | |_) | |
|
---|
5 | * | (__| |_| | _ <| |___
|
---|
6 | * \___|\___/|_| \_\_____|
|
---|
7 | *
|
---|
8 | * Copyright (C) 1998 - 2015, Daniel Stenberg, <daniel@haxx.se>, et al.
|
---|
9 | *
|
---|
10 | * This software is licensed as described in the file COPYING, which
|
---|
11 | * you should have received as part of this distribution. The terms
|
---|
12 | * are also available at https://curl.haxx.se/docs/copyright.html.
|
---|
13 | *
|
---|
14 | * You may opt to use, copy, modify, merge, publish, distribute and/or sell
|
---|
15 | * copies of the Software, and permit persons to whom the Software is
|
---|
16 | * furnished to do so, under the terms of the COPYING file.
|
---|
17 | *
|
---|
18 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
|
---|
19 | * KIND, either express or implied.
|
---|
20 | *
|
---|
21 | ***************************************************************************/
|
---|
22 |
|
---|
23 | #include "timeval.h"
|
---|
24 |
|
---|
25 | #if 0//defined(WIN32) && !defined(MSDOS)
|
---|
26 |
|
---|
27 | struct timeval curlx_tvnow(void)
|
---|
28 | {
|
---|
29 | /*
|
---|
30 | ** GetTickCount() is available on _all_ Windows versions from W95 up
|
---|
31 | ** to nowadays. Returns milliseconds elapsed since last system boot,
|
---|
32 | ** increases monotonically and wraps once 49.7 days have elapsed.
|
---|
33 | */
|
---|
34 | struct timeval now;
|
---|
35 | #if !defined(_WIN32_WINNT) || !defined(_WIN32_WINNT_VISTA) || \
|
---|
36 | (_WIN32_WINNT < _WIN32_WINNT_VISTA)
|
---|
37 | DWORD milliseconds = GetTickCount();
|
---|
38 | now.tv_sec = milliseconds / 1000;
|
---|
39 | now.tv_usec = (milliseconds % 1000) * 1000;
|
---|
40 | #else
|
---|
41 | ULONGLONG milliseconds = GetTickCount64();
|
---|
42 | now.tv_sec = (long) (milliseconds / 1000);
|
---|
43 | now.tv_usec = (long) (milliseconds % 1000) * 1000;
|
---|
44 | #endif
|
---|
45 |
|
---|
46 | return now;
|
---|
47 | }
|
---|
48 |
|
---|
49 | #elif defined(HAVE_CLOCK_GETTIME_MONOTONIC)
|
---|
50 |
|
---|
51 | struct timeval curlx_tvnow(void)
|
---|
52 | {
|
---|
53 | /*
|
---|
54 | ** clock_gettime() is granted to be increased monotonically when the
|
---|
55 | ** monotonic clock is queried. Time starting point is unspecified, it
|
---|
56 | ** could be the system start-up time, the Epoch, or something else,
|
---|
57 | ** in any case the time starting point does not change once that the
|
---|
58 | ** system has started up.
|
---|
59 | */
|
---|
60 | struct timeval now;
|
---|
61 | struct timespec tsnow;
|
---|
62 | if(0 == clock_gettime(CLOCK_MONOTONIC, &tsnow)) {
|
---|
63 | now.tv_sec = tsnow.tv_sec;
|
---|
64 | now.tv_usec = tsnow.tv_nsec / 1000;
|
---|
65 | }
|
---|
66 | /*
|
---|
67 | ** Even when the configure process has truly detected monotonic clock
|
---|
68 | ** availability, it might happen that it is not actually available at
|
---|
69 | ** run-time. When this occurs simply fallback to other time source.
|
---|
70 | */
|
---|
71 | #ifdef HAVE_GETTIMEOFDAY
|
---|
72 | else
|
---|
73 | (void)gettimeofday(&now, NULL);
|
---|
74 | #else
|
---|
75 | else {
|
---|
76 | now.tv_sec = (long)time(NULL);
|
---|
77 | now.tv_usec = 0;
|
---|
78 | }
|
---|
79 | #endif
|
---|
80 | return now;
|
---|
81 | }
|
---|
82 |
|
---|
83 | #elif defined(HAVE_GETTIMEOFDAY)
|
---|
84 |
|
---|
85 | struct timeval curlx_tvnow(void)
|
---|
86 | {
|
---|
87 | /*
|
---|
88 | ** gettimeofday() is not granted to be increased monotonically, due to
|
---|
89 | ** clock drifting and external source time synchronization it can jump
|
---|
90 | ** forward or backward in time.
|
---|
91 | */
|
---|
92 | struct timeval now;
|
---|
93 | (void)gettimeofday(&now, NULL);
|
---|
94 | return now;
|
---|
95 | }
|
---|
96 |
|
---|
97 | #else
|
---|
98 |
|
---|
99 | struct timeval curlx_tvnow(void)
|
---|
100 | {
|
---|
101 | /*
|
---|
102 | ** time() returns the value of time in seconds since the Epoch.
|
---|
103 | */
|
---|
104 | struct timeval now;
|
---|
105 | now.tv_sec = (long)time(NULL);
|
---|
106 | now.tv_usec = 0;
|
---|
107 | return now;
|
---|
108 | }
|
---|
109 |
|
---|
110 | #endif
|
---|
111 |
|
---|
112 | /*
|
---|
113 | * Make sure that the first argument is the more recent time, as otherwise
|
---|
114 | * we'll get a weird negative time-diff back...
|
---|
115 | *
|
---|
116 | * Returns: the time difference in number of milliseconds.
|
---|
117 | */
|
---|
118 | long curlx_tvdiff(struct timeval newer, struct timeval older)
|
---|
119 | {
|
---|
120 | return (newer.tv_sec-older.tv_sec)*1000+
|
---|
121 | (long)(newer.tv_usec-older.tv_usec)/1000;
|
---|
122 | }
|
---|
123 |
|
---|
124 | /*
|
---|
125 | * Same as curlx_tvdiff but with full usec resolution.
|
---|
126 | *
|
---|
127 | * Returns: the time difference in seconds with subsecond resolution.
|
---|
128 | */
|
---|
129 | double curlx_tvdiff_secs(struct timeval newer, struct timeval older)
|
---|
130 | {
|
---|
131 | if(newer.tv_sec != older.tv_sec)
|
---|
132 | return (double)(newer.tv_sec-older.tv_sec)+
|
---|
133 | (double)(newer.tv_usec-older.tv_usec)/1000000.0;
|
---|
134 | else
|
---|
135 | return (double)(newer.tv_usec-older.tv_usec)/1000000.0;
|
---|
136 | }
|
---|
137 |
|
---|
138 | /* return the number of seconds in the given input timeval struct */
|
---|
139 | long Curl_tvlong(struct timeval t1)
|
---|
140 | {
|
---|
141 | return t1.tv_sec;
|
---|
142 | }
|
---|