Added lock guard to submit_event of connector to protect connector status from concurrent updates

Signed-off-by: pietfried <pietgoempel@gmail.com>

Author: Pietfried

include/ocpp/v201/connector.hpp

@@ -44,6 +44,8 @@ class Connector {
     /// \brief Component responsible for maintaining and monitoring the operational status of CS, EVSEs, and connectors.
     std::shared_ptr<ComponentStateManager> component_state_manager;
 
+    /// \brief status mutex to protect the status of the connector against concurrent updates
+    std::mutex status_mutex;
 public:
     /// \brief Construct a new Connector object
     /// \param evse_id id of the EVSE the connector is ap art of

lib/ocpp/v201/connector.cpp

@@ -38,6 +38,7 @@ Connector::Connector(const int32_t evse_id, const int32_t connector_id,
 }
 
 void Connector::submit_event(ConnectorEvent event) {
+    std::lock_guard lk(this->status_mutex);
     switch (event) {
     case ConnectorEvent::PlugIn:
         this->component_state_manager->set_connector_occupied(this->evse_id, this->connector_id, true);