Fix dropped FirmwareStatusNotification::Installed message (refs EVERE…

…ST-1175)

The variable to publish FirmwareStatusNotification::Installed message is
now delayed, because the message is dropped in case the OCPP client is
not connected or the OCPP module is not yet subscribed to the variable.
This is only a temporary solution as long as the
reported issues (EVerest/libocpp#758,
EVerest/everest-core#841) are not fixed.

Signed-off-by: Fabian Hartung <fabian.hartung@chargebyte.com>

modules/CbSystem/main/systemImpl.cpp

@@ -142,6 +142,9 @@ static std::string get_partition(PartitionType part_type) {
 }
 
 void systemImpl::ready() {
+    // TODO: Remove this sleep when fix of the issues (ref: https://github.com/EVerest/libocpp/issues/758,
+    // https://github.com/EVerest/everest-core/issues/841) are implemented
+    sleep(20);
     check_update_marker();
 }
 

modules/CbSystem/main/systemImpl.hpp

@@ -139,6 +139,10 @@ class systemImpl : public systemImplBase {
     void install_signed_firmware(const types::system::FirmwareUpdateRequest& firmware_update_reqeust,
                                  const std::filesystem::path& firmware_file_path);
 
+    /**
+     *  @brief Checks if the firmware update marker is present and if so, 
+     *  notify the upper layer that the firmware update was successfuly installed.
+     */
     void check_update_marker();
     // ev@3370e4dd-95f4-47a9-aaec-ea76f34a66c9:v1
 };