Check if property exists before accessing or setting it
Previously when accessing/setting a property which does not exist, there will be segmentation faults
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@ -13,23 +13,43 @@
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// You should have received a copy of the GNU Affero General Public License
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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namespace Gst {
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using System;
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using System;
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using System.Runtime.InteropServices;
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using System.Runtime.InteropServices;
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namespace Gst {
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public class PropertyNotFoundException : Exception {}
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partial class Object
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partial class Object
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{
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{
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[DllImport ("libgobject-2.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
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static extern IntPtr g_object_class_find_property (IntPtr klass, IntPtr name);
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bool PropertyExists (string name) {
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var ptr = g_object_class_find_property (GType.GetClassPtr (), GLib.Marshaller.StringToPtrGStrdup (name));
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var result = ptr != IntPtr.Zero;
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GLib.Marshaller.Free (ptr);
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return result;
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}
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public object this[string property] {
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public object this[string property] {
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get {
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get {
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GLib.Value v = GetProperty (property);
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if (PropertyExists (property)) {
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object o = v.Val;
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GLib.Value v = GetProperty (property);
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v.Dispose ();
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object o = v.Val;
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return o;
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v.Dispose ();
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return o;
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} else
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throw new PropertyNotFoundException ();
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} set {
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} set {
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GLib.Value v = new GLib.Value (this, property);
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if (PropertyExists (property)) {
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v.Val = value;
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GLib.Value v = new GLib.Value (this, property);
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SetProperty (property, v);
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v.Val = value;
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v.Dispose ();
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SetProperty (property, v);
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v.Dispose ();
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} else
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throw new PropertyNotFoundException ();
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}
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}
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}
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}
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