int main(void)
{
note = safe_shmem_malloc(total * sizeof(int));
locks = safe_shmem_malloc(total * sizeof(lock_t));
int i, pid;
for (i = 0; i < total; i++) {
note[i] = 0;
lock_init(locks + i);
}
cprintf("sharemem init ok.\n");
unsigned int time = gettime_msec();
if ((pid = fork()) == 0) {
primeproc();
exit(0);
}
assert(pid > 0);
for (i = 2;; i++) {
if (write(0, i, 0) != 0) {
break;
}
}
cprintf("use %d msecs.\n", gettime_msec() - time);
cprintf("primer pass.\n");
return 0;
}
void
umain(void)
{
int i, id;
// fork the first prime process in the chain
if ((id=fork()) < 0)
panic("fork: %e", id);
if (id == 0)
primeproc();
// feed all the integers through
for (i=2;; i++)
ipc_send(id, i, 0, 0);
}
