1 files changed, 46 insertions, 0 deletions
diff --git a/ocaml-binary-annot/otherlibs/win32unix/close_on.c b/ocaml-binary-annot/otherlibs/win32unix/close_on.c
new file mode 100644
index 0000000000..5b2c4ece32
--- /dev/null
+++ b/ocaml-binary-annot/otherlibs/win32unix/close_on.c
@@ -0,0 +1,46 @@
+/***********************************************************************/
+/*                                                                     */
+/*                           Objective Caml                            */
+/*                                                                     */
+/*  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 Library General Public License, with    */
+/*  the special exception on linking described in file ../../LICENSE.  */
+/*                                                                     */
+/***********************************************************************/
+
+/* $Id$ */
+
+#include <mlvalues.h>
+#include <windows.h>
+#include "unixsupport.h"
+
+int win_set_inherit(value fd, BOOL inherit)
+{
+  HANDLE oldh, newh;
+
+  oldh = Handle_val(fd);
+  if (! DuplicateHandle(GetCurrentProcess(), oldh,
+                        GetCurrentProcess(), &newh,
+                        0L, inherit, DUPLICATE_SAME_ACCESS)) {
+    win32_maperr(GetLastError());
+    return -1;
+  }
+  Handle_val(fd) = newh;
+  CloseHandle(oldh);
+  return 0;
+}
+
+CAMLprim value win_set_close_on_exec(value fd)
+{
+  if (win_set_inherit(fd, FALSE) == -1) uerror("set_close_on_exec", Nothing);
+  return Val_unit;
+}
+
+CAMLprim value win_clear_close_on_exec(value fd)
+{
+  if (win_set_inherit(fd, TRUE) == -1) uerror("clear_close_on_exec", Nothing);
+  return Val_unit;
+}