ocaml/otherlibs/win32unix/close.c

45 lines
1.6 KiB
C

/***********************************************************************/
/* */
/* OCaml */
/* */
/* 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 <mlvalues.h>
#include "unixsupport.h"
#include <io.h>
extern int _close(int);
CAMLprim value unix_close(value fd)
{
if (Descr_kind_val(fd) == KIND_SOCKET) {
if (closesocket(Socket_val(fd)) != 0) {
win32_maperr(WSAGetLastError());
uerror("close", Nothing);
}
} else {
/* If we have an fd then closing it also closes
* the underlying handle. Also, closing only
* the handle and not the fd leads to fd leaks. */
if (CRT_fd_val(fd) != NO_CRT_FD) {
if (_close(CRT_fd_val(fd)) != 0)
uerror("close", Nothing);
} else {
if (! CloseHandle(Handle_val(fd))) {
win32_maperr(GetLastError());
uerror("close", Nothing);
}
}
}
return Val_unit;
}