static void iv_work_thread_got_event(void *_thr)
{
struct work_pool_thread *thr = _thr;
struct work_pool_priv *pool = thr->pool;
uint32_t last_seq;
mutex_lock(&pool->lock);
thr->kicked = 0;
if (!iv_list_empty(&thr->list)) {
iv_list_del_init(&thr->list);
iv_timer_unregister(&thr->idle_timer);
}
last_seq = pool->seq_tail;
while ((int32_t)(last_seq - pool->seq_head) > 0) {
struct iv_work_item *work;
pool->seq_head++;
work = iv_container_of(pool->work_items.next,
struct iv_work_item, list);
iv_list_del(&work->list);
mutex_unlock(&pool->lock);
work->work(work->cookie);
iv_invalidate_now();
mutex_lock(&pool->lock);
if (iv_list_empty(&pool->work_done))
iv_event_post(&pool->ev);
iv_list_add_tail(&work->list, &pool->work_done);
}
if (pool->seq_head == pool->seq_tail) {
if (!pool->shutting_down) {
iv_list_add(&thr->list, &pool->idle_threads);
iv_validate_now();
thr->idle_timer.expires = iv_now;
thr->idle_timer.expires.tv_sec += 10;
iv_timer_register(&thr->idle_timer);
} else {
__iv_work_thread_die(thr);
}
} else {
/*
* If we're already at the maximum number of pool
* threads, and none of those threads were idle when
* more work arrived, then there may have been no
* kick sent for the new work item(s) (and no new
* pool thread started either), so if we're leaving
* with work items still pending, make sure we get
* called again, so that we don't deadlock.
*/
iv_event_post(&thr->kick);
}
mutex_unlock(&pool->lock);
}
static void got_ev_child(void *_dummy)
{
if (die == 2) {
die = 3;
iv_event_post(&ev_parent);
iv_event_unregister(&ev_child);
} else {
iv_event_post(&ev_parent);
}
}
static void iv_work_thread(void *_thr)
{
struct work_pool_thread *thr = _thr;
struct work_pool_priv *pool = thr->pool;
iv_init();
INIT_IV_LIST_HEAD(&thr->list);
thr->kicked = 0;
IV_EVENT_INIT(&thr->kick);
thr->kick.cookie = thr;
thr->kick.handler = iv_work_thread_got_event;
iv_event_register(&thr->kick);
IV_TIMER_INIT(&thr->idle_timer);
thr->idle_timer.cookie = thr;
thr->idle_timer.handler = iv_work_thread_idle_timeout;
if (pool->thread_start != NULL)
pool->thread_start(pool->cookie);
iv_event_post(&thr->kick);
iv_main();
iv_deinit();
}
static void
afinter_source_wakeup(LogSource *s)
{
AFInterSource *self = (AFInterSource *) s;
iv_event_post(&self->schedule_wakeup);
}
static void
log_threaded_dest_driver_stop_thread(gpointer s)
{
LogThrDestDriver *self = (LogThrDestDriver *) s;
iv_event_post(&self->shutdown_event);
}
static void
log_reader_window_empty(LogSource *s)
{
LogReader *self = (LogReader *) s;
if (self->super.super.flags & PIF_INITIALIZED)
iv_event_post(&self->last_msg_sent_event);
}
static void
_reader_wakeup(LogSource *s)
{
JournalReader *self = (JournalReader *) s;
if (self->super.super.flags & PIF_INITIALIZED)
iv_event_post(&self->schedule_wakeup);
}
static void got_ev_parent(void *_dummy)
{
ev_received++;
if (die == 0) {
iv_event_post(&ev_child);
} else if (die == 1) {
die = 2;
iv_event_post(&ev_child);
} else if (die == 2) {
iv_fatal("iv_event_bench: entered invalid state");
} else if (die == 3) {
iv_validate_now();
tim_end = iv_now;
iv_event_unregister(&ev_parent);
}
}
void
afinter_message_posted(LogMessage *msg)
{
g_static_mutex_lock(&internal_msg_lock);
if (!internal_msg_queue)
{
internal_msg_queue = g_queue_new();
}
g_queue_push_tail(internal_msg_queue, msg);
if (current_internal_source)
iv_event_post(¤t_internal_source->post);
g_static_mutex_unlock(&internal_msg_lock);
}
static void thr_child(void *_dummy)
{
iv_init();
IV_EVENT_INIT(&ev_child);
ev_child.handler = got_ev_child;
iv_event_register(&ev_child);
iv_validate_now();
tim_start = iv_now;
iv_event_post(&ev_parent);
iv_main();
iv_deinit();
}
/* worker thread ************************************************************/
static void __iv_work_thread_die(struct work_pool_thread *thr)
{
struct work_pool_priv *pool = thr->pool;
if (thr->kicked)
iv_fatal("__iv_work_thread_die: called on kicked thread");
iv_event_unregister(&thr->kick);
free(thr);
pool->started_threads--;
if (pool->thread_stop != NULL)
pool->thread_stop(pool->cookie);
if (pool->shutting_down && !pool->started_threads)
iv_event_post(&pool->ev);
}
/* NOTE: may be running in the destination's thread, thus proper locking must be used */
static void
log_reader_wakeup(LogSource *s)
{
LogReader *self = (LogReader *) s;
/*
* We might get called even after this LogReader has been
* deinitialized, in which case we must not do anything (since the
* iv_event triggered here is not registered).
*
* This happens when log_writer_deinit() flushes its output queue
* after the reader which produced the message has already been
* deinited. Since init/deinit calls are made in the main thread, no
* locking is needed.
*
*/
if (self->super.super.flags & PIF_INITIALIZED)
iv_event_post(&self->schedule_wakeup);
}
void
main_loop_reload_config(void)
{
iv_event_post(&reload_config_requested);
return;
}
void
main_loop_exit(void)
{
iv_event_post(&exit_requested);
return;
}
/* NOTE: runs in the source thread */
static void
log_writer_schedule_update_watches(LogWriter *self)
{
iv_event_post(&self->queue_filled);
}
static void
log_threaded_dest_driver_message_became_available_in_the_queue(gpointer user_data)
{
LogThrDestDriver *self = (LogThrDestDriver *) user_data;
iv_event_post(&self->wake_up_event);
}
