6 #define malloc __libc_malloc
11 static struct atfork_funcs
{
12 void (*prepare
)(void);
15 struct atfork_funcs
*prev
, *next
;
18 static volatile int lock
[1];
20 void __fork_handler(int who
)
22 struct atfork_funcs
*p
;
26 for (p
=funcs
; p
; p
= p
->next
) {
27 if (p
->prepare
) p
->prepare();
31 for (p
=funcs
; p
; p
= p
->prev
) {
32 if (!who
&& p
->parent
) p
->parent();
33 else if (who
&& p
->child
) p
->child();
40 int pthread_atfork(void (*prepare
)(void), void (*parent
)(void), void (*child
)(void))
42 struct atfork_funcs
*new = malloc(sizeof *new);
43 if (!new) return ENOMEM
;
48 new->prepare
= prepare
;
51 if (funcs
) funcs
->prev
= new;