ocaml/otherlibs/unix/utimes.c

71 lines
2.0 KiB
C

/***********************************************************************/
/* */
/* Objective Caml */
/* */
/* Xavier Leroy, projet Cristal, INRIA Rocquencourt */
/* */
/* Copyright 1996 Institut National de Recherche en Informatique et */
/* en Automatique. All rights reserved. This file is distributed */
/* under the terms of the GNU Library General Public License. */
/* */
/***********************************************************************/
/* $Id$ */
#include <mlvalues.h>
#include "unixsupport.h"
#ifdef HAS_UTIME
#include <sys/types.h>
#ifndef _WIN32
#include <utime.h>
#else
#include <sys/utime.h>
#endif
value unix_utimes(value path, value atime, value mtime) /* ML */
{
struct utimbuf times, * t;
times.actime = Double_val(atime);
times.modtime = Double_val(mtime);
if (times.actime || times.modtime)
t = &times;
else
t = (struct utimbuf *) NULL;
if (utime(String_val(path), t) == -1) uerror("utimes", path);
return Val_unit;
}
#else
#ifdef HAS_UTIMES
#include <sys/types.h>
#include <sys/time.h>
value unix_utimes(value path, value atime, value mtime) /* ML */
{
struct timeval tv[2], * t;
double at = Double_val(atime);
double mt = Double_val(mtime);
tv[0].tv_sec = at;
tv[0].tv_usec = (at - tv[0].tv_sec) * 1000000;
tv[1].tv_sec = mt;
tv[1].tv_usec = (mt - tv[1].tv_sec) * 1000000;
if (tv[0].tv_sec || tv[1].tv_sec)
t = tv;
else
t = (struct timeval *) NULL;
if (utimes(String_val(path), t) == -1) uerror("utimes", path);
return Val_unit;
}
#else
value unix_utimes(value path, value atime, value mtime)
{ invalid_argument("utimes not implemented"); }
#endif
#endif