fsfw/events/EventManager.cpp

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#include "EventManager.h"
#include "../serviceinterface/ServiceInterfaceStream.h"
#include "../ipc/QueueFactory.h"
#include "../ipc/MutexFactory.h"
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// If one checks registerListener calls, there are around 40 (to max 50)
// objects registering for certain events.
// Each listener requires 1 or 2 EventIdMatcher and 1 or 2 ReportRangeMatcher.
// So a good guess is 75 to a max of 100 pools required for each, which fits well.
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// This should be configurable..
const LocalPool::LocalPoolConfig EventManager::poolConfig = {
{240, sizeof(EventMatchTree::Node)},
{120, sizeof(EventIdRangeMatcher)},
{120, sizeof(ReporterRangeMatcher)}
};
EventManager::EventManager(object_id_t setObjectId) :
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SystemObject(setObjectId),
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factoryBackend(0, poolConfig, false, true) {
mutex = MutexFactory::instance()->createMutex();
eventReportQueue = QueueFactory::instance()->createMessageQueue(
MAX_EVENTS_PER_CYCLE, EventMessage::EVENT_MESSAGE_SIZE);
}
EventManager::~EventManager() {
QueueFactory::instance()->deleteMessageQueue(eventReportQueue);
MutexFactory::instance()->deleteMutex(mutex);
}
MessageQueueId_t EventManager::getEventReportQueue() {
return eventReportQueue->getId();
}
ReturnValue_t EventManager::performOperation(uint8_t opCode) {
ReturnValue_t result = HasReturnvaluesIF::RETURN_OK;
while (result == HasReturnvaluesIF::RETURN_OK) {
EventMessage message;
result = eventReportQueue->receiveMessage(&message);
if (result == HasReturnvaluesIF::RETURN_OK) {
#ifdef DEBUG
printEvent(&message);
#endif
notifyListeners(&message);
}
}
return HasReturnvaluesIF::RETURN_OK;
}
void EventManager::notifyListeners(EventMessage* message) {
lockMutex();
for (auto iter = listenerList.begin(); iter != listenerList.end(); ++iter) {
if (iter->second.match(message)) {
MessageQueueSenderIF::sendMessage(iter->first, message,
message->getSender());
}
}
unlockMutex();
}
ReturnValue_t EventManager::registerListener(MessageQueueId_t listener,
bool forwardAllButSelected) {
auto result = listenerList.insert(
std::pair<MessageQueueId_t, EventMatchTree>(listener,
EventMatchTree(&factoryBackend, forwardAllButSelected)));
if (!result.second) {
return HasReturnvaluesIF::RETURN_FAILED;
}
return HasReturnvaluesIF::RETURN_OK;
}
ReturnValue_t EventManager::subscribeToEvent(MessageQueueId_t listener,
EventId_t event) {
return subscribeToEventRange(listener, event);
}
ReturnValue_t EventManager::subscribeToAllEventsFrom(MessageQueueId_t listener,
object_id_t object) {
return subscribeToEventRange(listener, 0, 0, true, object);
}
ReturnValue_t EventManager::subscribeToEventRange(MessageQueueId_t listener,
EventId_t idFrom, EventId_t idTo, bool idInverted,
object_id_t reporterFrom, object_id_t reporterTo,
bool reporterInverted) {
auto iter = listenerList.find(listener);
if (iter == listenerList.end()) {
return LISTENER_NOT_FOUND;
}
lockMutex();
ReturnValue_t result = iter->second.addMatch(idFrom, idTo, idInverted,
reporterFrom, reporterTo, reporterInverted);
unlockMutex();
return result;
}
ReturnValue_t EventManager::unsubscribeFromEventRange(MessageQueueId_t listener,
EventId_t idFrom, EventId_t idTo, bool idInverted,
object_id_t reporterFrom, object_id_t reporterTo,
bool reporterInverted) {
auto iter = listenerList.find(listener);
if (iter == listenerList.end()) {
return LISTENER_NOT_FOUND;
}
lockMutex();
ReturnValue_t result = iter->second.removeMatch(idFrom, idTo, idInverted,
reporterFrom, reporterTo, reporterInverted);
unlockMutex();
return result;
}
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#if FSFW_DEBUG_OUTPUT == 1
void EventManager::printEvent(EventMessage* message) {
const char *string = 0;
switch (message->getSeverity()) {
case SEVERITY::INFO:
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#if DEBUG_INFO_EVENT == 1
string = translateObject(message->getReporter());
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sif::info << "EVENT: ";
if (string != 0) {
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sif::info << string;
} else {
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sif::info << "0x" << std::hex << message->getReporter() << std::dec;
}
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sif::info << " reported " << translateEvents(message->getEvent()) << " ("
<< std::dec << message->getEventId() << std::hex << ") P1: 0x"
<< message->getParameter1() << " P2: 0x"
<< message->getParameter2() << std::dec << std::endl;
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#endif
break;
default:
string = translateObject(message->getReporter());
sif::debug << "EventManager: ";
if (string != 0) {
sif::debug << string;
}
else {
sif::debug << "0x" << std::hex << message->getReporter() << std::dec;
}
sif::debug << " reported " << translateEvents(message->getEvent())
<< " (" << std::dec << message->getEventId() << ") "
<< std::endl;
sif::debug << std::hex << "P1 Hex: 0x" << message->getParameter1()
<< ", P1 Dec: " << std::dec << message->getParameter1()
<< std::endl;
sif::debug << std::hex << "P2 Hex: 0x" << message->getParameter2()
<< ", P2 Dec: " << std::dec << message->getParameter2()
<< std::endl;
break;
}
}
#endif
void EventManager::lockMutex() {
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mutex->lockMutex(MutexIF::BLOCKING);
}
void EventManager::unlockMutex() {
mutex->unlockMutex();
}