fsfw/events/EventManager.cpp

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#include <framework/events/EventManager.h>
#include <framework/events/EventMessage.h>
#include <framework/serviceinterface/ServiceInterfaceStream.h>
#include <framework/ipc/QueueFactory.h>
#include <framework/ipc/MutexFactory.h>
const uint16_t EventManager::POOL_SIZES[N_POOLS] = {
sizeof(EventMatchTree::Node), sizeof(EventIdRangeMatcher),
sizeof(ReporterRangeMatcher) };
//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.
const uint16_t EventManager::N_ELEMENTS[N_POOLS] = { 240, 120, 120 };
EventManager::EventManager(object_id_t setObjectId) :
SystemObject(setObjectId), eventReportQueue(NULL), mutex(NULL), factoryBackend(
0, POOL_SIZES, N_ELEMENTS, 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;
}
#ifdef DEBUG
//forward declaration, should be implemented by mission
const char* translateObject(object_id_t object);
const char * translateEvents(Event event);
void EventManager::printEvent(EventMessage* message) {
const char *string = 0;
switch (message->getSeverity()) {
case SEVERITY::INFO:
// string = translateObject(message->getReporter());
// sif::info << "EVENT: ";
// if (string != 0) {
// sif::info << string;
// } else {
// sif::info << "0x" << std::hex << message->getReporter() << std::dec;
// }
// sif::info << " reported " << translateEvents(message->getEvent()) << " ("
// << std::dec << message->getEventId() << std::hex << ") P1: 0x"
// << message->getParameter1() << " P2: 0x"
// << message->getParameter2() << std::dec << std::endl;
break;
default:
string = translateObject(message->getReporter());
sif::error << "EVENT: ";
if (string != 0) {
sif::error << string;
} else {
sif::error << "0x" << std::hex << message->getReporter() << std::dec;
}
sif::error << " reported " << translateEvents(message->getEvent()) << " ("
<< std::dec << message->getEventId() << ") " << std::endl;
sif::error << std::hex << "P1 Hex: 0x" << message->getParameter1() << ", P1 Dec: "
<< std::dec << message->getParameter1() << std::endl;
sif::error << std::hex << "P2 Hex: 0x" << message->getParameter2() << ", P2 Dec: "
<< std::dec << message->getParameter2() << std::endl;
break;
}
}
#endif
void EventManager::lockMutex() {
mutex->lockMutex(MutexIF::NO_TIMEOUT);
}
void EventManager::unlockMutex() {
mutex->unlockMutex();
}