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/*
* 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>
__BEGIN_DECLS
extern int gettimeofday(struct timeval *, struct timezone *);
extern int settimeofday(const struct timeval *, const struct timezone *);
extern int getitimer(int, struct itimerval *);
extern int setitimer(int, const struct itimerval *, struct itimerval *);
extern int utimes(const char *, const struct timeval *);
#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)
__END_DECLS
#endif /* _SYS_TIME_H_ */
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