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