xref: /curl/lib/timeval.h (revision d39863d2)
1 #ifndef HEADER_CURL_TIMEVAL_H
2 #define HEADER_CURL_TIMEVAL_H
3 /***************************************************************************
4  *                                  _   _ ____  _
5  *  Project                     ___| | | |  _ \| |
6  *                             / __| | | | |_) | |
7  *                            | (__| |_| |  _ <| |___
8  *                             \___|\___/|_| \_\_____|
9  *
10  * Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
11  *
12  * This software is licensed as described in the file COPYING, which
13  * you should have received as part of this distribution. The terms
14  * are also available at https://curl.se/docs/copyright.html.
15  *
16  * You may opt to use, copy, modify, merge, publish, distribute and/or sell
17  * copies of the Software, and permit persons to whom the Software is
18  * furnished to do so, under the terms of the COPYING file.
19  *
20  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
21  * KIND, either express or implied.
22  *
23  * SPDX-License-Identifier: curl
24  *
25  ***************************************************************************/
26 
27 #include "curl_setup.h"
28 
29 #include "timediff.h"
30 
31 struct curltime {
32   time_t tv_sec; /* seconds */
33   int tv_usec;   /* microseconds */
34 };
35 
36 struct curltime Curl_now(void);
37 
38 /*
39  * Make sure that the first argument (newer) is the more recent time and older
40  * is the older time, as otherwise you get a weird negative time-diff back...
41  *
42  * Returns: the time difference in number of milliseconds.
43  */
44 timediff_t Curl_timediff(struct curltime newer, struct curltime older);
45 
46 /*
47  * Make sure that the first argument (newer) is the more recent time and older
48  * is the older time, as otherwise you get a weird negative time-diff back...
49  *
50  * Returns: the time difference in number of milliseconds, rounded up.
51  */
52 timediff_t Curl_timediff_ceil(struct curltime newer, struct curltime older);
53 
54 /*
55  * Make sure that the first argument (newer) is the more recent time and older
56  * is the older time, as otherwise you get a weird negative time-diff back...
57  *
58  * Returns: the time difference in number of microseconds.
59  */
60 timediff_t Curl_timediff_us(struct curltime newer, struct curltime older);
61 
62 #endif /* HEADER_CURL_TIMEVAL_H */
63