47 lines
1.9 KiB
C
47 lines
1.9 KiB
C
/**************************************************************************/
|
|
/* */
|
|
/* OCaml */
|
|
/* */
|
|
/* Xavier Leroy and Pascal Cuoq, 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 Lesser General Public License version 2.1, with the */
|
|
/* special exception on linking described in the file LICENSE. */
|
|
/* */
|
|
/**************************************************************************/
|
|
|
|
#include <caml/mlvalues.h>
|
|
#include <caml/memory.h>
|
|
#include <caml/alloc.h>
|
|
#include "unixsupport.h"
|
|
#include <fcntl.h>
|
|
|
|
/* PR#4749: pick a size that matches that of I/O buffers */
|
|
#define SIZEBUF 4096
|
|
|
|
CAMLprim value unix_pipe(value cloexec, value unit)
|
|
{
|
|
SECURITY_ATTRIBUTES attr;
|
|
HANDLE readh, writeh;
|
|
value readfd = Val_unit, writefd = Val_unit, res;
|
|
|
|
attr.nLength = sizeof(attr);
|
|
attr.lpSecurityDescriptor = NULL;
|
|
attr.bInheritHandle = unix_cloexec_p(cloexec) ? FALSE : TRUE;
|
|
if (! CreatePipe(&readh, &writeh, &attr, SIZEBUF)) {
|
|
win32_maperr(GetLastError());
|
|
uerror("pipe", Nothing);
|
|
}
|
|
Begin_roots2(readfd, writefd)
|
|
readfd = win_alloc_handle(readh);
|
|
writefd = win_alloc_handle(writeh);
|
|
res = caml_alloc_small(2, 0);
|
|
Field(res, 0) = readfd;
|
|
Field(res, 1) = writefd;
|
|
End_roots();
|
|
return res;
|
|
}
|