New module-wide variables for the PAS and PCS factories. (setup_pcs):

2000-04-25  Federico Mena Quintero  <federico@helixcode.com>

	* wombat.c (cal_factory pas_book_factory): New module-wide
	variables for the PAS and PCS factories.
	(setup_pcs): Connect to the "last_calendar_gone" signal of the
	calendar factory.
	(last_calendar_gone_cb): Queue a termination job.
	(queue_termination): Function to queue a termination job.  We have
	to use a timeout to reduce the probability of running into GOAD's
	race condition with factories.
	(termination_handler): Check that the PCS and the PAS have zero
	backends.  If so, exit the main loop.
	(setup_vfs): Use EXIT_FAILURE instead of 1.
	(init_bonobo): Likewise.
	(main): Destroy the factories and exit Wombat.  Wheee!

svn path=/trunk/; revision=2620

1 files changed, 82 insertions, 21 deletions

diff --git a/wombat/wombat.c b/wombat/wombat.c
index a505eb0a33..013b3615f1 100644
--- a/wombat/wombat.c
+++ b/wombat/wombat.c
@@ -16,43 +16,95 @@
 #include <libgnorba/gnorba.h>
 #include "calendar/pcs/cal-factory.h"
 
-CORBA_ORB orb;
+
 
+static CORBA_ORB orb;
+
+/* The and addressbook calendar factories */
+
+static CalFactory *cal_factory;
+static PASBookFactory *pas_book_factory;
+
+/* Timeout interval in milliseconds for termination */
+#define EXIT_TIMEOUT 5000
+
+/* Timeout ID for termination handler */
+static guint termination_handler_id;
+
+
+
+/* Termination */
+
+/* Termination handler.  Checks if both factories have zero running backends,
+ * and if so terminates the program.
+ */
+static gboolean
+termination_handler (gpointer data)
+{
+	/* FIXME: add the test for the PAS as well */
+
+	if (cal_factory_get_n_backends (cal_factory) == 0)
+		gtk_main_quit ();
+
+	termination_handler_id = 0;
+	return FALSE;
+}
+
+/* Queues a timeout for handling termination of Wombat */
 static void
-setup_pas (int argc, char **argv)
+queue_termination (void)
 {
-	static PASBookFactory *factory;
+	if (termination_handler_id)
+		return;
 
-	factory = pas_book_factory_new ();
+	termination_handler_id = g_timeout_add (EXIT_TIMEOUT, termination_handler, NULL);
+}
+
+
+
+static void
+setup_pas (int argc, char **argv)
+{
+	pas_book_factory = pas_book_factory_new ();
 
 	pas_book_factory_register_backend (
-		factory, "file", pas_backend_file_new);
+		pas_book_factory, "file", pas_backend_file_new);
 
 #ifdef HAVE_LDAP
 	pas_book_factory_register_backend (
-		factory, "ldap", pas_backend_ldap_new);
+		pas_book_factory, "ldap", pas_backend_ldap_new);
 #endif
 
-	pas_book_factory_activate (factory);
+	pas_book_factory_activate (pas_book_factory);
+}
+
+
+
+/* Personal calendar server */
+
+/* Callback used when the calendar factory has no more running backends */
+static void
+last_calendar_gone_cb (CalFactory *factory, gpointer data)
+{
+	queue_termination ();
 }
 
 /* Creates the calendar factory object and registers it with GOAD */
 static void
 setup_pcs (int argc, char **argv)
 {
-	CalFactory *factory;
 	CORBA_Object object;
 	CORBA_Environment ev;
 	int result;
 
-	factory = cal_factory_new ();
+	cal_factory = cal_factory_new ();
 
-	if (!factory) {
+	if (!cal_factory) {
 		g_message ("setup_pcs(): Could not create the calendar factory");
 		return;
 	}
 
-	object = bonobo_object_corba_objref (BONOBO_OBJECT (factory));
+	object = bonobo_object_corba_objref (BONOBO_OBJECT (cal_factory));
 
 	CORBA_exception_init (&ev);
 	result = goad_server_register (CORBA_OBJECT_NIL,
@@ -65,25 +117,27 @@ setup_pcs (int argc, char **argv)
 
 	if (ev._major != CORBA_NO_EXCEPTION || result == -1) {
 		g_message ("setup_pcs(): could not register the calendar factory");
-		bonobo_object_unref (BONOBO_OBJECT (factory));
+		bonobo_object_unref (BONOBO_OBJECT (cal_factory));
+		cal_factory = NULL;
 		CORBA_exception_free (&ev);
 		return;
 	} else if (result == -2) {
 		g_message ("setup_pcs(): a calendar factory is already registered");
-		bonobo_object_unref (BONOBO_OBJECT (factory));
+		bonobo_object_unref (BONOBO_OBJECT (cal_factory));
+		cal_factory = NULL;
 		CORBA_exception_free (&ev);
 		return;
 	}
 
-	/* FIXME: we never connect to the destroy signal of the factory.  We
-	 * need to add a signal to it to indicate that the last client died.
-	 * The PAS factory needs to have the same thing.  When Wombat sees that
-	 * both factories have lost all their clients, it should destroy the
-	 * factories and terminate.  */
+	gtk_signal_connect (GTK_OBJECT (cal_factory), "last_calendar_gone",
+			    GTK_SIGNAL_FUNC (last_calendar_gone_cb),
+			    NULL);
 
 	CORBA_exception_free (&ev);
 }
 
+
+
 static void
 setup_config (int argc, char **argv)
 {
@@ -94,10 +148,11 @@ setup_vfs (int argc, char **argv)
 {
 	if (!gnome_vfs_init ()) {
 		g_message ("setup_vfs(): could not initialize GNOME-VFS");
-		exit (1);
+		exit (EXIT_FAILURE);
 	}
 }
 
+
 
 static void
 init_bonobo (int argc, char **argv)
@@ -113,7 +168,7 @@ init_bonobo (int argc, char **argv)
 	if (ev._major != CORBA_NO_EXCEPTION) {
 		g_message ("init_bonobo(): could not initialize GOAD");
 		CORBA_exception_free (&ev);
-		exit (1);
+		exit (EXIT_FAILURE);
 	}
 
 	CORBA_exception_free (&ev);
@@ -122,7 +177,7 @@ init_bonobo (int argc, char **argv)
 
 	if (!bonobo_init (orb, NULL, NULL)) {
 		g_message ("init_bonobo(): could not initialize Bonobo");
-		exit (1);
+		exit (EXIT_FAILURE);
 	}
 }
 
@@ -140,5 +195,11 @@ main (int argc, char **argv)
 
 	bonobo_main  ();
 
+	bonobo_object_unref (BONOBO_OBJECT (cal_factory));
+	cal_factory = NULL;
+
+	while (1)
+		;
+
 	return 0;
 }