2 * Copyright (c) 2008, 2009, 2010 Nicira Networks.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at:
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
21 #include "type-props.h"
32 /* POSIX allows floating-point time_t, but we don't support it. */
33 BUILD_ASSERT_DECL(TYPE_IS_INTEGER(time_t));
35 /* We do try to cater to unsigned time_t, but I want to know about it if we
36 * ever encounter such a platform. */
37 BUILD_ASSERT_DECL(TYPE_IS_SIGNED(time_t));
39 #define TIME_MAX TYPE_MAXIMUM(time_t)
40 #define TIME_MIN TYPE_MINIMUM(time_t)
42 /* Interval between updates to the reported time, in ms. This should not be
43 * adjusted much below 10 ms or so with the current implementation, or too
44 * much time will be wasted in signal handlers and calls to clock_gettime(). */
45 #define TIME_UPDATE_INTERVAL 100
47 void time_disable_restart(void);
48 void time_enable_restart(void);
49 void time_postfork(void);
50 void time_refresh(void);
51 time_t time_now(void);
52 time_t time_wall(void);
53 long long int time_msec(void);
54 long long int time_wall_msec(void);
55 void time_timespec(struct timespec *);
56 void time_wall_timespec(struct timespec *);
57 void time_alarm(unsigned int secs);
58 int time_poll(struct pollfd *, int n_pollfds, int timeout);
60 long long int timespec_to_msec(const struct timespec *);
61 long long int timeval_to_msec(const struct timeval *);
67 #endif /* timeval.h */