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;