[anjuta] language-support-cpp-java: Hold a ref until async queries are finished (bgo#610397)

[Johannes Schmid <jhs src gnome org>]

commit faf8dd255f62f42670c18a1e9b2b391df681a9b9
Author: Johannes Schmid <jhs gnome org>
Date:   Fri Feb 19 11:08:04 2010 +0100

    language-support-cpp-java: Hold a ref until async queries are finished (bgo#610397)

 .../language-support-cpp-java/cpp-java-assist.c    |   16 +++++++++++++++-
 1 files changed, 15 insertions(+), 1 deletions(-)
---
diff --git a/plugins/language-support-cpp-java/cpp-java-assist.c b/plugins/language-support-cpp-java/cpp-java-assist.c
index 41f4634..b047f35 100644
--- a/plugins/language-support-cpp-java/cpp-java-assist.c
+++ b/plugins/language-support-cpp-java/cpp-java-assist.c
@@ -194,25 +194,37 @@ on_query_data (gint search_id, IAnjutaIterable* iter, CppJavaAssist* assist)
 	assist->priv->completion_cache = create_completion (assist,
 	                                                    iter,
 	                                                    assist->priv->completion_cache);
-	cpp_java_assist_update_autocomplete(assist);
+	cpp_java_assist_update_autocomplete(assist);	
+}
+
+static void
+unref_if_queries_finished (CppJavaAssist* assist)
+{
+	if (!(assist->priv->async_file || assist->priv->async_project || assist->priv->async_system))
+	{
+		g_object_unref (assist);
+	}
 }
 
 static void
 system_finished (AnjutaAsyncNotify* notify, CppJavaAssist* assist)
 {
 	assist->priv->async_system = FALSE;
+	unref_if_queries_finished (assist);
 }
 
 static void
 file_finished (AnjutaAsyncNotify* notify, CppJavaAssist* assist)
 {
 	assist->priv->async_file = FALSE;
+	unref_if_queries_finished (assist);
 }
 
 static void
 project_finished (AnjutaAsyncNotify* notify, CppJavaAssist* assist)
 {
 	assist->priv->async_project = FALSE;
+	unref_if_queries_finished (assist);
 }
 
 #define SCOPE_BRACE_JUMP_LIMIT 50
@@ -493,6 +505,8 @@ cpp_java_assist_create_word_completion_cache (CppJavaAssist *assist)
 	g_free (pattern);
 	g_free (assist->priv->search_cache);
 	assist->priv->search_cache = g_strdup (assist->priv->pre_word);
+	// Take a reference on CppJavaAssist until queries finish
+	g_object_ref (assist);
 	DEBUG_PRINT ("Started async search for: %s", assist->priv->pre_word);
 }