Add transaction callback to service

Author: ClemensElflein

libxbot-service/include/xbot-service/Service.hpp

@@ -88,6 +88,16 @@ class Service : public ServiceIo {
    */
   virtual const char *GetName() = 0;
 
+  /**
+   * Called whenever a new transaction starts
+   */
+  virtual void OnTransactionStart(uint64_t timestamp) {}
+
+  /**
+   * Called whenever a transaction was finished
+   */
+  virtual void OnTransactionEnd() {}
+
   const bool &IsRunning() {
     return is_running_;
   }

libxbot-service/src/Service.cpp

@@ -310,6 +310,7 @@ void xbot::service::Service::HandleDataMessage(xbot::datatypes::XbotHeader *head
 void xbot::service::Service::HandleDataTransaction(xbot::datatypes::XbotHeader *header, const void *payload,
                                                    size_t payload_len) {
   (void)header;
+  OnTransactionStart(header->timestamp);
   const auto payload_buffer = static_cast<const uint8_t *>(payload);
   // Go through all data packets in the transaction
   size_t processed_len = 0;
@@ -331,6 +332,7 @@ void xbot::service::Service::HandleDataTransaction(xbot::datatypes::XbotHeader *
   if (processed_len != payload_len) {
     ULOG_ARG_ERROR(&service_id_, "Transaction size mismatch");
   }
+  OnTransactionEnd();
 }
 
 void xbot::service::Service::loadConfigurationDefaults() {