blob: 653034ac4b07ed6499cc5e41aa8f69ca238db201 (
plain)
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
|
/**************************************************************************/
/* */
/* 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 Lesser General Public License version 2.1, with the */
/* special exception on linking described in the file LICENSE. */
/* */
/**************************************************************************/
#define CAML_INTERNALS
#include <caml/mlvalues.h>
#include <caml/debugger.h>
#include <caml/runtime_events.h>
#include "unixsupport.h"
#include <caml/domain.h>
#include <caml/fail.h>
/* Post-fork tasks to be carried out in the parent */
void caml_atfork_parent(pid_t child_pid) {
CAML_EV_LIFECYCLE(EV_FORK_PARENT, child_pid);
}
/* Post-fork tasks to be carried out in the child */
void caml_atfork_child(void) {
caml_runtime_events_post_fork();
CAML_EV_LIFECYCLE(EV_FORK_CHILD, 0);
}
CAMLprim value caml_unix_fork(value unit)
{
int ret;
if (caml_domain_is_multicore()) {
caml_failwith
("Unix.fork may not be called while other domains were created");
}
ret = fork();
if (ret == -1) caml_uerror("fork", Nothing);
if (ret == 0) {
caml_atfork_child();
/* the following hook can be redefined in other places */
caml_atfork_hook();
} else {
caml_atfork_parent(ret);
}
if (caml_debugger_in_use)
if ((caml_debugger_fork_mode && ret == 0) ||
(!caml_debugger_fork_mode && ret != 0))
caml_debugger_cleanup_fork();
return Val_int(ret);
}
|
