Bug fix #1 after rebasing onto ADIOS2 append mode

We need RW-mode in some places when re-parsing

Author: franzpoeschel

src/Series.cpp

@@ -1133,13 +1133,25 @@ Series::readGorVBased( bool do_init )
     IOHandler()->enqueue(IOTask(&series.iterations, pOpen));
 
     readAttributes( ReadMode::IgnoreExisting );
+
+    auto withRWAccess = [ this ]( auto && functor ) {
+        auto oldType = IOHandler()->m_frontendAccess;
+        auto newType = const_cast< Access * >( &IOHandler()->m_frontendAccess );
+        *newType = Access::READ_WRITE;
+        std::forward< decltype( functor ) >( functor )();
+        *newType = oldType;
+    };
+
     /*
      * 'snapshot' changes over steps, so reread that.
      */
-    series.iterations.readAttributes( ReadMode::OverrideExisting );
+    withRWAccess( [ &series ]() {
+        series.iterations.readAttributes( ReadMode::OverrideExisting );
+    } );
+
     /* obtain all paths inside the basepath (i.e. all iterations) */
     Parameter< Operation::LIST_PATHS > pList;
-    IOHandler()->enqueue(IOTask(&series.iterations, pList));
+    IOHandler()->enqueue( IOTask( &series.iterations, pList ) );
     IOHandler()->flush();
 
     auto readSingleIteration =
@@ -1160,7 +1172,12 @@ Series::readGorVBased( bool do_init )
             {
                 pOpen.path = path;
                 IOHandler()->enqueue( IOTask( &i, pOpen ) );
+                auto oldType = IOHandler()->m_frontendAccess;
+                auto newType =
+                    const_cast< Access * >( &IOHandler()->m_frontendAccess );
+                *newType = Access::READ_WRITE;
                 i.reread( path );
+                *newType = oldType;
             }
         }
         else
@@ -1234,7 +1251,7 @@ Series::readGorVBased( bool do_init )
         for( auto const & it : *pList.paths )
         {
             uint64_t index = std::stoull( it );
-            readSingleIteration( index, it, true );
+            withRWAccess( [&](){ readSingleIteration( index, it, true ); } );
         }
         if( currentSteps.has_value() )
         {
@@ -1254,7 +1271,7 @@ Series::readGorVBased( bool do_init )
         }
         for( auto it : res )
         {
-            readSingleIteration( it, "", false );
+            withRWAccess( [&](){ readSingleIteration( it, "", false ); } );
         }
         return res;
     }