1 /*
2 * Copyright (c) 2015 DeNA Co., Ltd.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a copy
5 * of this software and associated documentation files (the "Software"), to
6 * deal in the Software without restriction, including without limitation the
7 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
8 * sell copies of the Software, and to permit persons to whom the Software is
9 * furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
19 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
20 * IN THE SOFTWARE.
21 */
22 #ifndef h2o__time_h
23 #define h2o__time_h
24
25 #include <stdint.h>
26 #include <sys/time.h>
27 #include <time.h>
28
29 #ifdef __cplusplus
30 extern "C" {
31 #endif
32
33 #define H2O_TIMESTR_RFC1123_LEN (sizeof("Sun, 06 Nov 1994 08:49:37 GMT") - 1)
34 #define H2O_TIMESTR_LOG_LEN (sizeof("29/Aug/2014:15:34:38 +0900") - 1)
35
36 /**
37 * builds a RFC-1123 style date string
38 */
39 void h2o_time2str_rfc1123(char *buf, struct tm *gmt);
40 /**
41 * converts HTTP-date to packed format (or returns UINT64_MAX on failure)
42 */
43 int h2o_time_parse_rfc1123(const char *s, size_t len, struct tm *tm);
44 /**
45 * builds an Apache log-style date string
46 */
47 void h2o_time2str_log(char *buf, time_t time);
48
h2o_timeval_subtract(struct timeval * from,struct timeval * until)49 static inline int64_t h2o_timeval_subtract(struct timeval *from, struct timeval *until)
50 {
51 int32_t delta_sec = (int32_t)until->tv_sec - (int32_t)from->tv_sec;
52 int32_t delta_usec = (int32_t)until->tv_usec - (int32_t)from->tv_usec;
53 int64_t delta = (int64_t)((int64_t)delta_sec * 1000 * 1000L) + delta_usec;
54
55 return delta;
56 }
57
h2o_timeval_is_null(struct timeval * tv)58 static inline int h2o_timeval_is_null(struct timeval *tv)
59 {
60 return tv->tv_sec == 0;
61 }
62
63 #ifdef __cplusplus
64 }
65 #endif
66
67 #endif
68