void copy_from_disk_queue_to_memory_queue(auto_drainer_t::lock_t keepalive) {
try {
while (!keepalive.get_drain_signal()->is_pulsed()) {
if (disk_queue->empty()) {
if (items_in_queue != memory_queue.size()) {
// There is a push in progress, there's no good way to wait on it, so we'll start a new coroutine later
restart_copy_coro = true;
} else {
disk_queue.reset();
}
break;
}
T value;
disk_queue->pop(&value);
if (memory_queue.full()) {
guarantee(notify_when_room_in_memory_queue == NULL);
cond_t cond;
assignment_sentry_t<cond_t *> assignment_sentry(¬ify_when_room_in_memory_queue, &cond);
wait_interruptible(&cond, keepalive.get_drain_signal());
}
memory_queue.push_back(value);
available_control.set_available(true);
}
} catch (const interrupted_exc_t &) {
/* ignore */
}
}
void copy_from_disk_queue_to_memory_queue(auto_drainer_t::lock_t keepalive) {
try {
while (!keepalive.get_drain_signal()->is_pulsed()) {
if (disk_queue->empty()) {
if (items_in_queue != memory_queue.size()) {
// There is a push in progress, there's no good way to wait on
// it, so we'll start a new coroutine later
restart_copy_coro = true;
} else {
disk_queue.reset();
}
break;
}
write_message_t wm;
copying_viewer_t viewer(&wm);
disk_queue->pop(&viewer);
if (memory_queue_free_space <= 0) {
guarantee(notify_when_room_in_memory_queue == nullptr);
cond_t cond;
assignment_sentry_t<cond_t *> assignment_sentry(
¬ify_when_room_in_memory_queue, &cond);
wait_interruptible(&cond, keepalive.get_drain_signal());
}
memory_queue_free_space -= wm.size();
memory_queue.emplace_back(std::move(wm));
available_control.set_available(true);
}
} catch (const interrupted_exc_t &) {
/* ignore */
}
}
