1 /* Copyright (c) 2008 The Board of Trustees of The Leland Stanford
4 * We are making the OpenFlow specification and associated documentation
5 * (Software) available for public use and benefit with the expectation
6 * that others will use, modify and enhance the Software and contribute
7 * those enhancements back to the community. However, since we would
8 * like to make the Software available for broadest use, with as few
9 * restrictions as possible permission is hereby granted, free of
10 * charge, to any person obtaining a copy of this Software to deal in
11 * the Software under the copyrights without restriction, including
12 * without limitation the rights to use, copy, modify, merge, publish,
13 * distribute, sublicense, and/or sell copies of the Software, and to
14 * permit persons to whom the Software is furnished to do so, subject to
15 * the following conditions:
17 * The above copyright notice and this permission notice shall be
18 * included in all copies or substantial portions of the Software.
20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
21 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
22 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
23 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
24 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
25 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
26 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
29 * The name and trademarks of copyright holder(s) may NOT be used in
30 * advertising or publicity pertaining to the Software or any
31 * derivatives without specific, written prior permission.
38 #include "type-props.h"
43 /* POSIX allows floating-point time_t, but we don't support it. */
44 BUILD_ASSERT_DECL(TYPE_IS_INTEGER(time_t));
46 /* We do try to cater to unsigned time_t, but I want to know about it if we
47 * ever encounter such a platform. */
48 BUILD_ASSERT_DECL(TYPE_IS_SIGNED(time_t));
50 #define TIME_MAX TYPE_MAXIMUM(time_t)
51 #define TIME_MIN TYPE_MINIMUM(time_t)
53 /* Interval between updates to the time reported by time_gettimeofday(), in ms.
54 * This should not be adjusted much below 10 ms or so with the current
55 * implementation, or too much time will be wasted in signal handlers and calls
57 #define TIME_UPDATE_INTERVAL 100
60 void time_refresh(void);
61 time_t time_now(void);
62 long long int time_msec(void);
63 void time_alarm(unsigned int secs);
64 int time_poll(struct pollfd *, int n_pollfds, int timeout);
66 #endif /* timeval.h */