static void *log_commit_thread (void *arg)
{
INFO0 ("started");
while (1)
{
int ret = util_timed_wait_for_fd (logger_fd[0], 5000);
if (ret == 0) continue;
if (ret > 0)
{
char cm[80];
ret = pipe_read (logger_fd[0], cm, sizeof cm);
if (ret > 0)
{
// fprintf (stderr, "logger woken with %d\n", ret);
log_commit_entries ();
continue;
}
}
if (ret < 0 && sock_recoverable (sock_error()))
continue;
int err = sock_error();
sock_close (logger_fd[0]);
sock_close (logger_fd[1]);
if (worker_count)
{
worker_control_create (logger_fd);
ERROR1 ("logger received code %d", err);
continue;
}
// fprintf (stderr, "logger closed with zero workers\n");
break;
}
return NULL;
}
static void worker_start (void)
{
worker_t *handler = calloc (1, sizeof(worker_t));
worker_control_create (&handler->wakeup_fd[0]);
handler->pending_clients_tail = &handler->pending_clients;
thread_spin_create (&handler->lock);
handler->last_p = &handler->clients;
thread_rwlock_wlock (&workers_lock);
if (worker_incoming == NULL)
{
worker_incoming = handler;
handler->thread = thread_create ("worker", worker, handler, THREAD_ATTACHED);
thread_rwlock_unlock (&workers_lock);
INFO0 ("starting incoming worker thread");
worker_start(); // single level recursion, just get a special worker thread set up
return;
}
handler->next = workers;
workers = handler;
worker_count++;
worker_least_used = worker_balance_to_check = workers;
thread_rwlock_unlock (&workers_lock);
handler->thread = thread_create ("worker", worker, handler, THREAD_ATTACHED);
}
static void worker_start (void)
{
worker_t *handler = calloc (1, sizeof(worker_t));
worker_control_create (handler);
handler->pending_clients_tail = &handler->pending_clients;
thread_spin_create (&handler->lock);
thread_rwlock_wlock (&workers_lock);
handler->last_p = &handler->clients;
handler->next = workers;
workers = handler;
worker_count++;
worker_least_used = worker_balance_to_check = workers;
handler->thread = thread_create ("worker", worker, handler, THREAD_ATTACHED);
thread_rwlock_unlock (&workers_lock);
}
void worker_logger_init (void)
{
worker_control_create (logger_fd);
log_set_commit_callback (logger_commits);
}
