1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
|
/***********************************************************************/
/* */
/* Objective Caml */
/* */
/* Xavier Leroy and Pascal Cuoq, projet Cristal, INRIA Rocquencourt */
/* */
/* Copyright 1996 Institut National de Recherche en Informatique et */
/* Automatique. Distributed only by permission. */
/* */
/***********************************************************************/
/* $Id$ */
#include <mlvalues.h>
#include <windows.h>
#include "unixsupport.h"
#if 0
/* This works only under Windows NT, but not 95 */
value win_set_close_on_exec(fd) /* ML */
value fd;
{
HANDLE h;
h = (HANDLE) _get_osfhandle(Int_val(fd)) ;
if (h == (HANDLE) -1 ||
! SetHandleInformation(h, HANDLE_FLAG_INHERIT, 0)) {
_dosmaperr(GetLastError());
uerror("set_close_on_exec", Nothing);
}
return Val_unit;
}
value win_clear_close_on_exec(fd) /* ML */
value fd;
{
HANDLE h;
h = (HANDLE) _get_osfhandle(Int_val(fd)) ;
if (h == (HANDLE) -1 ||
! SetHandleInformation(h, HANDLE_FLAG_INHERIT, HANDLE_FLAG_INHERIT)) {
_dosmaperr(GetLastError());
uerror("clear_close_on_exec", Nothing);
}
return Val_unit;
}
#else
extern int _set_osfhnd(int fd, long value);
static int win_realloc_handle(fd, inherit)
int fd;
BOOL inherit;
{
HANDLE oldh, newh;
oldh = (HANDLE) _get_osfhandle(fd);
if (oldh == (HANDLE) -1) return -1;
if (! DuplicateHandle(GetCurrentProcess(), oldh,
GetCurrentProcess(), &newh,
0L, inherit, DUPLICATE_SAME_ACCESS)) {
_dosmaperr(GetLastError());
return -1;
}
_close(fd);
_set_osfhnd(fd, (long) newh);
return 0;
}
value win_set_close_on_exec(fd) /* ML */
value fd;
{
if (win_realloc_handle(Int_val(fd), FALSE) == -1) {
uerror("set_close_on_exec", Nothing);
}
return Val_unit;
}
value win_clear_close_on_exec(fd) /* ML */
value fd;
{
if (win_realloc_handle(Int_val(fd), TRUE) == -1) {
uerror("clear_close_on_exec", Nothing);
}
return Val_unit;
}
#endif
|
