101 lines
3.8 KiB
C
101 lines
3.8 KiB
C
/*
|
|
* Copyright (C) 2008 The Android Open Source Project
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* * Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* * Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in
|
|
* the documentation and/or other materials provided with the
|
|
* distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
|
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
|
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
|
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
|
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
|
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
|
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
|
|
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#ifndef _SYS_TIME_H_
|
|
#define _SYS_TIME_H_
|
|
|
|
#include <sys/cdefs.h>
|
|
#include <sys/types.h>
|
|
#include <linux/time.h>
|
|
|
|
/* POSIX says <sys/time.h> gets you most of <sys/select.h> and may get you all of it. */
|
|
#include <sys/select.h>
|
|
|
|
__BEGIN_DECLS
|
|
|
|
int gettimeofday(struct timeval* __tv, struct timezone* __tz);
|
|
int settimeofday(const struct timeval* __tv, const struct timezone* __tz);
|
|
|
|
int getitimer(int __which, struct itimerval* __current_value);
|
|
int setitimer(int __which, const struct itimerval* __new_value, struct itimerval* __old_value);
|
|
|
|
int utimes(const char* __path, const struct timeval __times[2]);
|
|
|
|
#if defined(__USE_BSD)
|
|
int futimes(int __fd, const struct timeval __times[2]) __INTRODUCED_IN(26);
|
|
int lutimes(const char* __path, const struct timeval __times[2]) __INTRODUCED_IN(26);
|
|
#endif
|
|
|
|
#if defined(__USE_GNU)
|
|
int futimesat(int __dir_fd, const char* __path, const struct timeval __times[2]) __INTRODUCED_IN(26);
|
|
#endif
|
|
|
|
#define timerclear(a) \
|
|
((a)->tv_sec = (a)->tv_usec = 0)
|
|
|
|
#define timerisset(a) \
|
|
((a)->tv_sec != 0 || (a)->tv_usec != 0)
|
|
|
|
#define timercmp(a, b, op) \
|
|
((a)->tv_sec == (b)->tv_sec \
|
|
? (a)->tv_usec op (b)->tv_usec \
|
|
: (a)->tv_sec op (b)->tv_sec)
|
|
|
|
#define timeradd(a, b, res) \
|
|
do { \
|
|
(res)->tv_sec = (a)->tv_sec + (b)->tv_sec; \
|
|
(res)->tv_usec = (a)->tv_usec + (b)->tv_usec; \
|
|
if ((res)->tv_usec >= 1000000) { \
|
|
(res)->tv_usec -= 1000000; \
|
|
(res)->tv_sec += 1; \
|
|
} \
|
|
} while (0)
|
|
|
|
#define timersub(a, b, res) \
|
|
do { \
|
|
(res)->tv_sec = (a)->tv_sec - (b)->tv_sec; \
|
|
(res)->tv_usec = (a)->tv_usec - (b)->tv_usec; \
|
|
if ((res)->tv_usec < 0) { \
|
|
(res)->tv_usec += 1000000; \
|
|
(res)->tv_sec -= 1; \
|
|
} \
|
|
} while (0)
|
|
|
|
#define TIMEVAL_TO_TIMESPEC(tv, ts) { \
|
|
(ts)->tv_sec = (tv)->tv_sec; \
|
|
(ts)->tv_nsec = (tv)->tv_usec * 1000; \
|
|
}
|
|
#define TIMESPEC_TO_TIMEVAL(tv, ts) { \
|
|
(tv)->tv_sec = (ts)->tv_sec; \
|
|
(tv)->tv_usec = (ts)->tv_nsec / 1000; \
|
|
}
|
|
|
|
__END_DECLS
|
|
|
|
#endif
|