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authorMarc-André Lureau <marcandre.lureau@redhat.com>2022-06-09 19:26:47 +0400
committerGerd Hoffmann <kraxel@redhat.com>2022-07-19 14:35:00 +0200
commitc8ddcdd6886b34d5d55d8d59973280e4c1b49195 (patch)
tree88783665453f5bf329603fef5f534d3b42ce57b5 /ui/dbus.c
parent782378973121addeb11b13fd12a6ac2e69faa33f (diff)
downloadfocaccia-qemu-c8ddcdd6886b34d5d55d8d59973280e4c1b49195.tar.gz
focaccia-qemu-c8ddcdd6886b34d5d55d8d59973280e4c1b49195.zip
dbus-display: fix test race when initializing p2p connection
The D-Bus connection starts processing messages before QEMU has the time
to set the object manager server. This is causing dbus-display-test to
fail randomly with:

ERROR:../tests/qtest/dbus-display-test.c:68:test_dbus_display_vm:
assertion failed
(qemu_dbus_display1_vm_get_name(QEMU_DBUS_DISPLAY1_VM(vm)) ==
"dbus-test"): (NULL == "dbus-test") ERROR

Use the delayed message processing flag and method to avoid that
situation.

(the bus connection doesn't need a fix, as the initialization is done
synchronously)

Reported-by: Robinson, Cole <crobinso@redhat.com>
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Tested-by: Cole Robinson <crobinso@redhat.com>
Message-Id: <20220609152647.870373-1-marcandre.lureau@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Diffstat (limited to 'ui/dbus.c')
-rw-r--r--ui/dbus.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/ui/dbus.c b/ui/dbus.c
index 7a87612379..32d88dc94a 100644
--- a/ui/dbus.c
+++ b/ui/dbus.c
@@ -268,6 +268,7 @@ dbus_display_add_client_ready(GObject *source_object,
     }
 
     g_dbus_object_manager_server_set_connection(dbus_display->server, conn);
+    g_dbus_connection_start_message_processing(conn);
 }
 
 
@@ -300,7 +301,8 @@ dbus_display_add_client(int csock, Error **errp)
 
     g_dbus_connection_new(G_IO_STREAM(conn),
                           guid,
-                          G_DBUS_CONNECTION_FLAGS_AUTHENTICATION_SERVER,
+                          G_DBUS_CONNECTION_FLAGS_AUTHENTICATION_SERVER |
+                          G_DBUS_CONNECTION_FLAGS_DELAY_MESSAGE_PROCESSING,
                           NULL,
                           dbus_display->add_client_cancellable,
                           dbus_display_add_client_ready,