[vala] D-Bus: Fix memory leaks when calling async methods in static clients

[Jürg Billeter <juergbi src gnome org>]

commit cc481b852414c35275d3bed1933d8513566edaae
Author: Jürg Billeter <j bitron ch>
Date:   Wed Feb 10 12:57:36 2010 +0100

    D-Bus: Fix memory leaks when calling async methods in static clients

 codegen/valadbusclientmodule.vala |   31 +++++++++++++++++++++++++++++--
 1 files changed, 29 insertions(+), 2 deletions(-)
---
diff --git a/codegen/valadbusclientmodule.vala b/codegen/valadbusclientmodule.vala
index f869206..5266173 100644
--- a/codegen/valadbusclientmodule.vala
+++ b/codegen/valadbusclientmodule.vala
@@ -1886,21 +1886,48 @@ internal class Vala.DBusClientModule : DBusModule {
 		block.add_statement (new CCodeExpressionStatement (new CCodeAssignment (new CCodeIdentifier ("_data_"), new CCodeIdentifier ("user_data"))));
 
 		// complete async call by invoking callback
+		var obj_decl = new CCodeDeclaration ("GObject *");
+		obj_decl.add_declarator (new CCodeVariableDeclarator ("_obj_"));
+		block.add_statement (obj_decl);
+
 		var object_creation = new CCodeFunctionCall (new CCodeIdentifier ("g_object_newv"));
 		object_creation.add_argument (new CCodeConstant ("G_TYPE_OBJECT"));
 		object_creation.add_argument (new CCodeConstant ("0"));
 		object_creation.add_argument (new CCodeConstant ("NULL"));
+		block.add_statement (new CCodeExpressionStatement (new CCodeAssignment (new CCodeIdentifier ("_obj_"), object_creation)));
+
+		var async_result_decl = new CCodeDeclaration ("GSimpleAsyncResult *");
+		async_result_decl.add_declarator (new CCodeVariableDeclarator ("_res_"));
+		block.add_statement (async_result_decl);
 
 		var async_result_creation = new CCodeFunctionCall (new CCodeIdentifier ("g_simple_async_result_new"));
-		async_result_creation.add_argument (object_creation);
+		async_result_creation.add_argument (new CCodeIdentifier ("_obj_"));
 		async_result_creation.add_argument (new CCodeMemberAccess.pointer (new CCodeIdentifier ("_data_"), "_callback_"));
 		async_result_creation.add_argument (new CCodeMemberAccess.pointer (new CCodeIdentifier ("_data_"), "_user_data_"));
 		async_result_creation.add_argument (new CCodeIdentifier ("_data_"));
+		block.add_statement (new CCodeExpressionStatement (new CCodeAssignment (new CCodeIdentifier ("_res_"), async_result_creation)));
 
 		var completecall = new CCodeFunctionCall (new CCodeIdentifier ("g_simple_async_result_complete"));
-		completecall.add_argument (async_result_creation);
+		completecall.add_argument (new CCodeIdentifier ("_res_"));
 		block.add_statement (new CCodeExpressionStatement (completecall));
 
+		var obj_free = new CCodeFunctionCall (new CCodeIdentifier ("g_object_unref"));
+		obj_free.add_argument (new CCodeIdentifier ("_obj_"));
+		block.add_statement (new CCodeExpressionStatement (obj_free));
+
+		var async_result_free = new CCodeFunctionCall (new CCodeIdentifier ("g_object_unref"));
+		async_result_free.add_argument (new CCodeIdentifier ("_res_"));
+		block.add_statement (new CCodeExpressionStatement (async_result_free));
+
+		var datafree = new CCodeFunctionCall (new CCodeIdentifier ("g_slice_free"));
+		datafree.add_argument (new CCodeIdentifier (dataname));
+		datafree.add_argument (new CCodeIdentifier ("_data_"));
+		block.add_statement (new CCodeExpressionStatement (datafree));
+
+		var pendingfree = new CCodeFunctionCall (new CCodeIdentifier ("dbus_pending_call_unref"));
+		pendingfree.add_argument (new CCodeIdentifier ("pending"));
+		block.add_statement (new CCodeExpressionStatement (pendingfree));
+
 		source_declarations.add_type_member_declaration (function.copy ());
 		function.block = block;
 		source_type_member_definition.append (function);