5 static struct atfork_funcs {
9 struct atfork_funcs *prev, *next;
12 static volatile int lock[1];
14 void __fork_handler(int who)
16 struct atfork_funcs *p;
20 for (p=funcs; p; p = p->next) {
21 if (p->prepare) p->prepare();
25 for (p=funcs; p; p = p->prev) {
26 if (!who && p->parent) p->parent();
27 else if (who && p->child) p->child();
34 int pthread_atfork(void (*prepare)(void), void (*parent)(void), void (*child)(void))
36 struct atfork_funcs *new = malloc(sizeof *new);
42 new->prepare = prepare;
45 if (funcs) funcs->prev = new;