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git.proxmox.com Git - ovs.git/blob - lib/timeval.h
2 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013 Nicira, Inc.
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 "openvswitch/type-props.h"
33 /* POSIX allows floating-point time_t, but we don't support it. */
34 BUILD_ASSERT_DECL(TYPE_IS_INTEGER(time_t));
36 /* We do try to cater to unsigned time_t, but I want to know about it if we
37 * ever encounter such a platform. */
38 BUILD_ASSERT_DECL(TYPE_IS_SIGNED(time_t));
40 #define TIME_MAX TYPE_MAXIMUM(time_t)
41 #define TIME_MIN TYPE_MINIMUM(time_t)
44 #define localtime_r(timep, result) localtime_s(result, timep)
45 #define gmtime_r(timep, result) gmtime_s(result, timep)
53 time_t time_now(void);
54 time_t time_wall(void);
55 long long int time_msec(void);
56 long long int time_wall_msec(void);
57 void time_timespec(struct timespec
*);
58 void time_wall_timespec(struct timespec
*);
59 void time_alarm(unsigned int secs
);
60 int time_poll(struct pollfd
*, int n_pollfds
, HANDLE
*handles
,
61 long long int timeout_when
, int *elapsed
);
63 long long int timespec_to_msec(const struct timespec
*);
64 long long int timeval_to_msec(const struct timeval
*);
66 struct tm_msec
*localtime_msec(long long int now
, struct tm_msec
*result
);
67 struct tm_msec
*gmtime_msec(long long int now
, struct tm_msec
*result
);
68 size_t strftime_msec(char *s
, size_t max
, const char *format
,
69 const struct tm_msec
*);
70 void xgettimeofday(struct timeval
*);
71 void xclock_gettime(clock_t, struct timespec
*);
73 int get_cpu_usage(void);
75 long long int time_boot_msec(void);
77 void timewarp_run(void);
83 #endif /* timeval.h */