2 * Copyright (c) 2008, 2009 Nicira Networks.
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
21 #include "type-props.h"
27 /* POSIX allows floating-point time_t, but we don't support it. */
28 BUILD_ASSERT_DECL(TYPE_IS_INTEGER(time_t));
30 /* We do try to cater to unsigned time_t, but I want to know about it if we
31 * ever encounter such a platform. */
32 BUILD_ASSERT_DECL(TYPE_IS_SIGNED(time_t));
34 #define TIME_MAX TYPE_MAXIMUM(time_t)
35 #define TIME_MIN TYPE_MINIMUM(time_t)
37 /* Interval between updates to the time reported by time_gettimeofday(), in ms.
38 * This should not be adjusted much below 10 ms or so with the current
39 * implementation, or too much time will be wasted in signal handlers and calls
41 #define TIME_UPDATE_INTERVAL 100
44 void time_refresh(void);
45 time_t time_now(void);
46 long long int time_msec(void);
47 void time_timeval(struct timeval *);
48 void time_alarm(unsigned int secs);
49 int time_poll(struct pollfd *, int n_pollfds, int timeout);
51 #endif /* timeval.h */