6 static struct atfork_funcs {
10 struct atfork_funcs *prev, *next;
13 static volatile int lock[1];
15 void __fork_handler(int who)
17 struct atfork_funcs *p;
21 for (p=funcs; p; p = p->next) {
22 if (p->prepare) p->prepare();
26 for (p=funcs; p; p = p->prev) {
27 if (!who && p->parent) p->parent();
28 else if (who && p->child) p->child();
35 int pthread_atfork(void (*prepare)(void), void (*parent)(void), void (*child)(void))
37 struct atfork_funcs *new = malloc(sizeof *new);
38 if (!new) return ENOMEM;
43 new->prepare = prepare;
46 if (funcs) funcs->prev = new;