add MessageMap::findAll changedSince argument to distinguish touched/changed for since/until range

src/ebusd/bushandler.cpp

@@ -1197,7 +1197,7 @@ result_t BusHandler::prepareScan(symbol_t slave, bool full, const string& levels
     return RESULT_OK;
   }
   deque<Message*> messages;
-  m_messages->findAll("scan", "", levels, true, true, false, false, true, true, 0, 0, &messages);
+  m_messages->findAll("scan", "", levels, true, true, false, false, true, true, 0, 0, false, &messages);
   auto it = messages.begin();
   while (it != messages.end()) {
     Message* message = *it;

src/ebusd/datahandler.h

@@ -149,7 +149,7 @@ class DataSink : virtual public DataHandler {
   bool isDataSink() const override { return true; }
 
   /**
-   * Notify the sink of an updated @a Message.
+   * Notify the sink of an updated @a Message (not necessarily changed though).
    * @param message the updated @a Message.
    */
   virtual void notifyUpdate(Message* message);

src/ebusd/mainloop.cpp

@@ -359,7 +359,7 @@ void MainLoop::run() {
     time(&now);
     if (!dataSinks.empty()) {
       messages.clear();
-      m_messages->findAll("", "", "*", false, true, true, true, true, true, sinkSince, now, &messages);
+      m_messages->findAll("", "", "*", false, true, true, true, true, true, sinkSince, now, false, &messages);
       for (const auto message : messages) {
         for (const auto dataSink : dataSinks) {
           dataSink->notifyUpdate(message);
@@ -403,7 +403,7 @@ void MainLoop::run() {
     if (listening) {
       string levels = getUserLevels(user);
       messages.clear();
-      m_messages->findAll("", "", levels, false, true, true, true, true, true, since, now, &messages);
+      m_messages->findAll("", "", levels, false, true, true, true, true, true, since, now, true, &messages);
       for (const auto message : messages) {
         ostream << message->getCircuit() << " " << message->getName() << " = " << dec;
         message->decodeLastData(false, nullptr, -1, 0, &ostream);
@@ -867,7 +867,7 @@ result_t MainLoop::executeRead(const vector<string>& args, const string& levels,
       return RESULT_OK;
     }
     deque<Message*> messages;
-    m_newlyDefinedMessages->findAll("", "", levels, false, true, false, false, true, false, 0, 0, &messages);
+    m_newlyDefinedMessages->findAll("", "", levels, false, true, false, false, true, false, 0, 0, false, &messages);
     if (messages.empty()) {
       *ostream << "ERR: bad definition: no read message";
       return RESULT_OK;
@@ -1082,7 +1082,7 @@ result_t MainLoop::executeWrite(const vector<string>& args, const string levels,
       return RESULT_OK;
     }
     deque<Message*> messages;
-    m_newlyDefinedMessages->findAll("", "", levels, false, false, true, false, true, false, 0, 0, &messages);
+    m_newlyDefinedMessages->findAll("", "", levels, false, false, true, false, true, false, 0, 0, false, &messages);
     if (messages.empty()) {
       *ostream << "ERR: bad definition: no write message";
       return RESULT_OK;
@@ -1325,7 +1325,7 @@ result_t MainLoop::executeFind(const vector<string>& args, const string& levels,
   }
   deque<Message*> messages;
   m_messages->findAll(circuit, args.size() == argPos ? "" : args[argPos], useLevels,
-      exact, withRead, withWrite, withPassive, userLevel, !withConditions, 0, 0, &messages);
+      exact, withRead, withWrite, withPassive, userLevel, !withConditions, 0, 0, false, &messages);
 
   bool found = false;
   char str[32];
@@ -1910,7 +1910,7 @@ result_t MainLoop::executeGet(const vector<string>& args, bool* connected, ostri
       verbosity |= (valueName ? OF_VALUENAME : numeric ? OF_NUMERIC : 0) | OF_JSON | (full ? OF_ALL_ATTRS : 0)
                    | (withDefinition ? OF_DEFINTION : 0);
       deque<Message*> messages;
-      m_messages->findAll(circuit, name, getUserLevels(user), exact, true, withWrite, true, true, true, 0, 0,
+      m_messages->findAll(circuit, name, getUserLevels(user), exact, true, withWrite, true, true, true, 0, 0, false,
                           &messages);
       string lastName;
       for (deque<Message*>::iterator it = messages.begin(); it != messages.end(); it++) {

src/lib/ebus/message.cpp

@@ -2506,7 +2506,7 @@ Message* MessageMap::find(const string& circuit, const string& name, const strin
 
 void MessageMap::findAll(const string& circuit, const string& name, const string& levels,
     bool completeMatch, bool withRead, bool withWrite, bool withPassive, bool includeEmptyLevel, bool onlyAvailable,
-    time_t since, time_t until, deque<Message*>* messages) const {
+    time_t since, time_t until, bool changedSince, deque<Message*>* messages) const {
   string lcircuit = circuit;
   FileReader::tolower(&lcircuit);
   string lname = name;
@@ -2553,7 +2553,7 @@ void MessageMap::findAll(const string& circuit, const string& name, const string
         if (message->getDstAddress() == SYN) {
           continue;
         }
-        time_t lastchg = message->getLastChangeTime();
+        time_t lastchg = changedSince ? message->getLastChangeTime() : message->getLastUpdateTime();
         if ((since != 0 && lastchg < since)
         || (until != 0 && lastchg >= until)) {
           continue;
@@ -2647,7 +2647,7 @@ void MessageMap::invalidateCache(Message* message) {
   string circuit = message->getCircuit();
   string name = message->getName();
   deque<Message*> messages;
-  findAll(circuit, name, "*", true, true, true, true, true, true, 0, 0, &messages);
+  findAll(circuit, name, "*", true, true, true, true, true, true, 0, 0, false, &messages);
   for (auto checkMessage : messages) {
     if (checkMessage != message) {
       checkMessage->m_lastUpdateTime = 0;

src/lib/ebus/message.h

@@ -1403,11 +1403,12 @@ class MessageMap : public MappedFileReader {
    * address), or 0 to ignore.
    * @param until the end time to which to add updates (exclusive, also removes messages with unset destination
    * address), or 0 to ignore.
+   * @changedSince true to use the last change time for the since/until range, false to use the last seen time.
    * @param messages the @a deque to which to add the found @a Message instances.
    */
   void findAll(const string& circuit, const string& name, const string& levels,
     bool completeMatch, bool withRead, bool withWrite, bool withPassive, bool includeEmptyLevel, bool onlyAvailable,
-    time_t since, time_t until, deque<Message*>* messages) const;
+    time_t since, time_t until, bool changedSince, deque<Message*>* messages) const;
 
   /**
    * Find the @a Message instance for the specified master data.

src/lib/ebus/test/test_message.cpp

@@ -367,7 +367,7 @@ int main() {
         continue;
       }
       deque<Message*> msgs;
-      messages->findAll("", "", "*", false, true, true, true, true, false, 0, 0, &msgs);
+      messages->findAll("", "", "*", false, true, true, true, true, false, 0, 0, false, &msgs);
       if (msgs.empty()) {
         message = nullptr;
         cout << "\"" << check[0] << "\": create error: message not found" << endl;