[tracker/tracker-0.6] Bug NB#138043 - New tracker indexer crashes.

[Carlos Garnacho <carlosg src gnome org>]

commit 21d6a49b7c5f0a1d166182ad1df562b0a1ad5e78
Author: Carlos Garnacho <carlos lanedo com>
Date:   Wed Sep 9 14:07:37 2009 +0200

    Bug NB#138043 - New tracker indexer crashes.
    
    Conceivably a row in the resultset could be NULL if there were NULL or
    unrecognized values in the DB for all colunms in that row. In that case warn
    and return NULL/0.

 src/libtracker-db/tracker-db-interface.c |    8 +++++++-
 1 files changed, 7 insertions(+), 1 deletions(-)
---
diff --git a/src/libtracker-db/tracker-db-interface.c b/src/libtracker-db/tracker-db-interface.c
index 8ab7283..c0d1860 100644
--- a/src/libtracker-db/tracker-db-interface.c
+++ b/src/libtracker-db/tracker-db-interface.c
@@ -665,6 +665,12 @@ tracker_db_result_set_get (TrackerDBResultSet *result_set,
 	row = g_ptr_array_index (priv->array, priv->current_row);
 	va_start (args, result_set);
 
+	if (!row) {
+		g_warning ("No data was allocated for row %d, this means the database "
+			   "contained NULL or non-managed values for all the data in it",
+			   priv->current_row);
+	}
+
 	while ((n_col = va_arg (args, gint)) >= 0) {
 		if ((guint) n_col >= priv->columns) {
 			g_critical ("Result set has %d columns, trying to access column %d, "
@@ -673,7 +679,7 @@ tracker_db_result_set_get (TrackerDBResultSet *result_set,
 			break;
 		}
 
-		if (priv->col_types[n_col] != G_TYPE_INVALID) {
+		if (row && row[n_col] && priv->col_types[n_col] != G_TYPE_INVALID) {
 			g_value_init (&value, priv->col_types[n_col]);
 			fill_in_value (&value, row[n_col]);
 			G_VALUE_LCOPY (&value, args, 0, &error);