return sqlite3 status int for save and prepare methods

src/app/browser/main/tab.cpp

@@ -66,11 +66,11 @@ Tab::Tab(
     );
 }
 
-void Tab::session_restore()
+int Tab::session_restore()
 {
     sqlite3_stmt* statement;
 
-    const int PREPARE = ::sqlite3_prepare_v3(
+    const int PREPARE_STATUS = ::sqlite3_prepare_v3(
         this->db,
         R"SQL(
             SELECT * FROM `app_browser_main_tab__session` ORDER BY `number` ASC
@@ -81,7 +81,7 @@ void Tab::session_restore()
         nullptr
     );
 
-    if (PREPARE == SQLITE_OK)
+    if (PREPARE_STATUS == SQLITE_OK)
     {
         close_all();
 
@@ -109,17 +109,19 @@ void Tab::session_restore()
         }
     }
 
-    sqlite3_finalize(
+    ::sqlite3_finalize(
         statement
     );
+
+    return PREPARE_STATUS;
 }
 
-void Tab::session_save()
+int Tab::session_save()
 {
     char * error; // @TODO
 
     // Delete previous tab session
-    ::sqlite3_exec(
+    const int EXEC_STATUS = ::sqlite3_exec(
         db,
         R"SQL(
             DELETE FROM `app_browser_main_tab__session`
@@ -129,6 +131,8 @@ void Tab::session_save()
         &error
     );
 
+    if (EXEC_STATUS == SQLITE_OK)
+    {
         // Save current tab session
         for (int page_number = 0; page_number < get_n_pages(); page_number++)
         {
@@ -163,6 +167,9 @@ void Tab::session_save()
         }
     }
 
+    return EXEC_STATUS;
+}
+
 void Tab::shutdown()
 {
     session_save();

src/app/browser/main/tab.hpp

@@ -94,8 +94,8 @@ namespace app::browser::main
                     const int & PAGE_NUMBER
                 );
 
-            void session_restore();
-            void session_save();
+            int session_restore();
+            int session_save();
 
             void shutdown();