[nautilus] search-engine: hold a ref while emitting completion signals

[Cosimo Cecchi <cosimoc src gnome org>]

commit dc626a653496c397b325c06a9358b847cfef56d6
Author: Cosimo Cecchi <cosimoc gnome org>
Date:   Thu Sep 6 10:03:36 2012 -0400

    search-engine: hold a ref while emitting completion signals
    
    Since the clients might decide to drop the last reference to the engine
    in the signal callback.

 libnautilus-private/nautilus-search-engine.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/libnautilus-private/nautilus-search-engine.c b/libnautilus-private/nautilus-search-engine.c
index a3a0184..fc84729 100644
--- a/libnautilus-private/nautilus-search-engine.c
+++ b/libnautilus-private/nautilus-search-engine.c
@@ -151,9 +151,11 @@ search_provider_error (NautilusSearchProvider *provider,
 	DEBUG ("Search provider error: %s", error_message);
 	engine->details->providers_error++;
 	if (engine->details->providers_error == engine->details->num_providers) {
+		g_object_ref (engine);
 		nautilus_search_provider_error (NAUTILUS_SEARCH_PROVIDER (engine),
 						_("Unable to complete the requested search"));
 		g_hash_table_remove_all (engine->details->uris);
+		g_object_unref (engine);
 	}
 }
 
@@ -164,8 +166,10 @@ search_provider_finished (NautilusSearchProvider *provider,
 {
 	engine->details->providers_finished++;
 	if (engine->details->providers_finished == engine->details->num_providers) {
+		g_object_ref (engine);
 		nautilus_search_provider_finished (NAUTILUS_SEARCH_PROVIDER (engine));
 		g_hash_table_remove_all (engine->details->uris);
+		g_object_unref (engine);
 	}
 }