da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin/***********************************************************************
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* This software is part of the ast package *
3e14f97f673e8a630f076077de35afdd43dc1587Roger A. Faulkner* Copyright (c) 1985-2010 AT&T Intellectual Property *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* and is licensed under the *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* Common Public License, Version 1.0 *
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin* by AT&T Intellectual Property *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* A copy of the License is available at *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* http://www.opensource.org/licenses/cpl1.0.txt *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* Information and Software Systems Research *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* AT&T Research *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* Florham Park NJ *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* Glenn Fowler <gsf@research.att.com> *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* David Korn <dgk@research.att.com> *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* Phong Vo <kpv@research.att.com> *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin***********************************************************************/
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#pragma prototyped
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin/*
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * Glenn Fowler
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * AT&T Research
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * touch file access and modify times of file
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * if flags&PATH_TOUCH_CREATE then file will be created if it doesn't exist
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * if flags&PATH_TOUCH_VERBATIM then times are taken verbatim
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * times have one second granularity
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * (time_t)(-1) retain old time
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * 0 use current time
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * the old interface flag values were:
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * 1 PATH_TOUCH_CREATE
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * -1 PATH_TOUCH_CREATE|PATH_TOUCH_VERBATIM
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * PATH_TOUCH_VERBATIM -- not supported
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin */
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#include <ast.h>
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#include <times.h>
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#include <tv.h>
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chinint
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chintouch(const char* path, time_t at, time_t mt, int flags)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin{
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin Tv_t av;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin Tv_t mv;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin Tv_t* ap;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin Tv_t* mp;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (at == (time_t)(-1) && !(flags & PATH_TOUCH_VERBATIM))
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin ap = TV_TOUCH_RETAIN;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin else if (!at && !(flags & PATH_TOUCH_VERBATIM))
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin ap = 0;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin else
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin {
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin av.tv_sec = at;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin av.tv_nsec = 0;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin ap = &av;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin }
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (mt == (time_t)(-1) && !(flags & PATH_TOUCH_VERBATIM))
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin mp = TV_TOUCH_RETAIN;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin else if (!mt && !(flags & PATH_TOUCH_VERBATIM))
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin mp = 0;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin else
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin {
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin mv.tv_sec = mt;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin mv.tv_nsec = 0;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin mp = &mv;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin }
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin return tvtouch(path, ap, mp, NiL, flags & 1);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin}