Index: sources/cloudsync/CloudSyncController.h
===================================================================
diff -u -r14cd1c61c1b956e7605d63be7450657817d17355 -rfe30c662d0fdf9df32883c17772b5803b84d229e
--- sources/cloudsync/CloudSyncController.h	(.../CloudSyncController.h)	(revision 14cd1c61c1b956e7605d63be7450657817d17355)
+++ sources/cloudsync/CloudSyncController.h	(.../CloudSyncController.h)	(revision fe30c662d0fdf9df32883c17772b5803b84d229e)
@@ -7,7 +7,7 @@
  *
  * \file    CloudSyncController.h
  * \author  (last)      Behrouz NematiPour
- * \date    (last)      01-Mar-2024
+ * \date    (last)      12-Mar-2024
  * \author  (original)  Behrouz NematiPour
  * \date    (original)  14-Oct-2021
  *
@@ -133,6 +133,8 @@
 
         eError_LogNameNoParam           = 973, // the received Log Name not provided
         eError_LogNameEmpty             = 974, // the received Log Name is empty
+
+        eError_LogRetentionNoParam      = 975, // the received Log retention payload parameters not provided
     };
 
     typedef QHash<qint32 , QStringList> MessageList;
@@ -181,6 +183,8 @@
         eMessageID_CSDecommissioning=   9,  // [ UI(1009) <-> CS(2009) ] Decommissioning     Request
         // Log Upload
         eMessageID_SendLogUpload    =  10,  // [ UI(1010) <-> CS(2010) ] Log Upload          Request/Response
+        // CloudSync Log Retention
+        eMessageID_SendLogRetention =  11,  // [ UI(1011) <-> CS(2011) ] Log Retention       Request/Response
         // Factory Reset
         eMessageID_CSFactoryReset   =  99,  // [ UI(1009) <-> CS(2009) ] Factory Reset       Request            // NOT IMPLEMENTED
 
@@ -201,6 +205,7 @@
         { eMessageID_TxCodeDisplay    , 1 },
         { eMessageID_Error            , 2 },
         { eMessageID_SendLogUpload    , 1 },
+        { eMessageID_SendLogRetention , 2 },
     };
 
     enum DeviceInfo_Enum {
@@ -226,6 +231,8 @@
     void  onActionReceive   (GuiActionType vAction, const QVariantList &vData);
     void  onPendingTxr      (const QString &vFileName   );
     void  onPendingLog      (const QString &vFileName, const QString vChecksum  );
+    void  onRetentionLog    (quint8 vMaxUsePercent);
+
     void  onInitComplete    ();
     void  onPOSTCloudSync   (bool           vPass  );
     void  onCryptSetupMount (bool           vPass  );
@@ -236,6 +243,8 @@
     void didInitComplete    ();
     void didTxCodeReceive   (const QString &vTxCode     );
     void didLogUpload       (const QString &vFileName   );
+    void didLogRetention    (quint16 vLogsCount, quint32 vLogsSize);
+
     void didRegisterStart   (bool           vOK    );
     void didRegisterDone    (bool           vOK    );
     void didCloudSyncStatus (bool           vReady );
@@ -321,4 +330,7 @@
     void sendPendingLog         (const QString &vFileName  , const QString vChecksum); // eMessageID_SendLogUpload
     bool rcvdPendingLog         (const Message &vMessage                            ); // eMessageID_SendLogUpload
 
+    // CloudSync log retention
+    void sendRetentionLog       (      quint8   vMaxUsePercent                      ); // eMessageID_SendLogRetention
+    bool rcvdRetentionLog       (const Message &vMessage                            ); // eMessageID_SendLogRetention
 };