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logic: reimplemented task system to abort ast visiting

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* reimplemented interrupting TaskParseCxx by adding a listener for the MessageInterruptTask and returning a failure status code on update. This cancels the parent sequence task which results in the indexed items not getting inserted into the persistent storage
* removed the capability for interrupting from TaskScheduler
* changed task system to be closer to the standard behavior tree implementation
* changed task system to accommodate the 3 status return types: Running, Success and Failure
* made TaskGroupSequential fail once a member task fails
* made TaskGroupParallel fail once a member task fails
* split TaskParse... into one task for indexing and one task for injecting
* added TaskRunner that handles updating and resetting the managed task
* fixed numbers that are shown as parsed file count in indexing ui
* fixed deadlock that originated from interaction between TaskScheduler and MessageQueue (one thread wanted to destroy a message listener on a task while the other one wanted to send as message as a task)
This commit is contained in:
malte_langkabel
2016-09-07 14:39:34 +02:00
parent cbcf56f7dc
commit 4f302b0d1d
48 changed files with 651 additions and 678 deletions
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src/lib/utility/messaging/MessageQueue.cpp
+16 -14
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@@ -260,24 +260,26 @@ void MessageQueue::sendMessageAsTask(std::shared_ptr<MessageBase> message, bool
{
std::shared_ptr<TaskGroupSequential> taskGroup = std::make_shared<TaskGroupSequential>();
std::lock_guard<std::mutex> lock(m_listenersMutex);
for (size_t i = 0; i < m_listeners.size(); i++)
{
MessageListenerBase* listener = m_listeners[i];
if (listener->getType() == message->getType())
std::lock_guard<std::mutex> lock(m_listenersMutex);
for (size_t i = 0; i < m_listeners.size(); i++)
{
uint listenerId = listener->getId();
taskGroup->addTask(std::make_shared<TaskLambda>(
[listenerId, message]()
{
MessageListenerBase* listener = MessageQueue::getInstance()->getListenerById(listenerId);
if (listener)
MessageListenerBase* listener = m_listeners[i];
if (listener->getType() == message->getType())
{
uint listenerId = listener->getId();
taskGroup->addTask(std::make_shared<TaskLambda>(
[listenerId, message]()
{
listener->handleMessageBase(message.get());
MessageListenerBase* listener = MessageQueue::getInstance()->getListenerById(listenerId);
if (listener)
{
listener->handleMessageBase(message.get());
}
}
}
));
));
}
}
}