working cgo slices, working nested-bucket operations

main.go

@@ -177,7 +177,10 @@ func Bolt_ListBuckets(b ObjectReference, browse []string) ObjectReference {
 			// Nested-mode
 			err = withBrowse_ReadOnly(b, browse, func(db *bolt.DB, tx *bolt.Tx, bucket *bolt.Bucket) error {
 				return bucket.ForEach(func(k, v []byte) error {
-					pNC.content <- CallResponse{s: string(k)}
+					// non-nil v means it's a data item
+					if v == nil {
+						pNC.content <- CallResponse{s: string(k)}
+					}
 					return nil
 				})
 			})

qbolt/interop.cpp

@@ -19,17 +19,24 @@ int64_t Interop::GetMagic() {
 
 GoSliceManagedWrapper::GoSliceManagedWrapper(QStringList *qsl) :
     rawStrings(),
-    strings(),
-    slice()
+    slice(),
+    strings(nullptr)
 {
     rawStrings.reserve(qsl->size());
-    strings.reserve(qsl->size());
+    strings = new GoString[qsl->size()];
+
     for (int i = 0; i < qsl->size(); ++i) {
         rawStrings.push_back( qsl->at(i).toUtf8() );
-        strings.push_back(GoString{ rawStrings[i].data(), rawStrings[i].size() });
+        strings[i].p = rawStrings[i].data();
+        strings[i].n = rawStrings[i].size();
     }
 
-    slice.data = static_cast<void*>( & strings[0] );
-    slice.len  = strings.size(); //  * sizeof(GoString);
+    slice.data = static_cast<void*>(strings);
+    slice.len  = qsl->size(); //  * sizeof(GoString);
     slice.cap  = slice.len;
 }
+
+GoSliceManagedWrapper::~GoSliceManagedWrapper()
+{
+    delete[] strings;
+}

qbolt/interop.h

@@ -10,11 +10,12 @@ class GoSliceManagedWrapper {
 
 public:
     GoSliceManagedWrapper(QStringList *qsl);
+    ~GoSliceManagedWrapper();
 protected:
     QList<QByteArray> rawStrings;
-    QList<GoString> strings;
 public:
     GoSlice slice;
+    GoString *strings;
 };
 
 class Interop

qbolt/mainwindow.cpp

@@ -82,11 +82,11 @@ void MainWindow::refreshBucketTree(QTreeWidgetItem* itm)
     for (int i = itm->childCount(); i --> 0;) {
         delete itm->takeChild(i);
     }
-
+/*
     if (browsePath.size() > 1) {
         return; // only go one level deep
     }
-
+*/
     auto *bdb = GET_BDB(top);
 
     QString error;
@@ -187,17 +187,15 @@ void MainWindow::on_bucketTree_currentItemChanged(QTreeWidgetItem *current, QTre
     if (current->parent() == nullptr) {
         // Selected a database
         ui->stackedWidget->setCurrentWidget(ui->databasePage);
+        ui->databasePropertiesArea->clear();
 
         auto *bdb = GET_BDB(current);
         bdb->getStatsJSON(
             [=](QString j) {
-                ui->databasePropertiesArea->clear();
                 ui->databasePropertiesArea->setPlainText(j);
             },
             [=](QString error) {
-                QMessageBox qmb;
-                qmb.setText(tr("Error retrieving database statistics: %1").arg(error));
-                qmb.exec();
+                ui->databasePropertiesArea->setPlainText(tr("Error retrieving database statistics: %1").arg(error));
             }
         );
 
@@ -205,6 +203,7 @@ void MainWindow::on_bucketTree_currentItemChanged(QTreeWidgetItem *current, QTre
         // Selected a bucket
 
         ui->stackedWidget->setCurrentWidget(ui->bucketPage);
+        ui->bucketPropertiesArea->clear();
 
         QStringList browse;
         QTreeWidgetItem *top = current;
@@ -217,13 +216,10 @@ void MainWindow::on_bucketTree_currentItemChanged(QTreeWidgetItem *current, QTre
         bdb->getBucketStatsJSON(
             browse,
             [=](QString j) {
-                ui->bucketPropertiesArea->clear();
                 ui->bucketPropertiesArea->setPlainText(j);
             },
             [=](QString error) {
-                QMessageBox qmb;
-                qmb.setText(tr("Error retrieving bucket statistics: %1").arg(error));
-                qmb.exec();
+                ui->bucketPropertiesArea->setPlainText(tr("Error retrieving bucket statistics: %1").arg(error));
             }
         );