ocaml/otherlibs/win32unix/dup.c

30 lines
1.2 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"
value unix_dup(value fd) /* ML */
{
HANDLE newh;
if (! DuplicateHandle(GetCurrentProcess(), Handle_val(fd),
GetCurrentProcess(), &newh,
0L, TRUE, DUPLICATE_SAME_ACCESS)) {
_dosmaperr(GetLastError());
return -1;
}
return win_alloc_handle(newh);
}