ocaml/otherlibs/unix/ftruncate.c

50 lines
1.6 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, with */
/* the special exception on linking described in file ../../LICENSE. */
/* */
/***********************************************************************/
/* $Id$ */
#include <sys/types.h>
#include <fail.h>
#include <mlvalues.h>
#include <io.h>
#include "unixsupport.h"
#ifdef HAS_UNISTD
#include <unistd.h>
#endif
#ifdef HAS_TRUNCATE
CAMLprim value unix_ftruncate(value fd, value len)
{
if (ftruncate(Int_val(fd), Long_val(len)) == -1)
uerror("ftruncate", Nothing);
return Val_unit;
}
CAMLprim value unix_ftruncate_64(value fd, value len)
{
if (ftruncate(Int_val(fd), File_offset_val(len)) == -1)
uerror("ftruncate", Nothing);
return Val_unit;
}
#else
CAMLprim value unix_ftruncate(value fd, value len)
{ invalid_argument("ftruncate not implemented"); }
CAMLprim value unix_ftruncate_64(value fd, value len)
{ invalid_argument("ftruncate not implemented"); }
#endif