Add some other cases where a slow sync is in order (pre_sync): Pre load

2000-09-19  JP Rosevear  <jpr@helixcode.com>

	* conduits/todo/todo-conduit.c (check_for_slow_setting): Add some
	other cases where a slow sync is in order
	(pre_sync): Pre load the uids, the map and the add/mod/del lists
	(match_record): Use the map hash to match records
	(iterate): Iterate using the pre-loaded uid list
	(iterate_specific): Iterate using the add/mod/del lists
	(purge): Delete all entries in the del list
	(set_status): Set status by adding to an appropriate list
	(set_pilot_id): Set pilot_id by updating map hash

	* conduits/todo/todo-conduit.h: Add lists for added, modified and
	deleted objects

	* conduits/todo/todo-conduit.c (map_name): Get the pilot_id->uid
map
	file name
	(map_sax_start_element): SAX handler to extract a pilot_id->uid
	mapping
	(map_sax_parse): Parse the given file and build a pilot_id->uid
hash
	(map_write_foreach): Write out individual mapping elements
	(map_write): Write out the pilot_id->uid mapping
	(start_calendar_server_cb): Rename from gnome_calendar_load_cb

	* conduits/todo/todo-conduit-config.h: Rename pilotID to pilot_id

	* conduits/todo/e-todo.conduit.in: A little renaming

	* conduits/todo/Makefile.am: Fix build slightly

	* pcs/cal.c (build_change_seq): Build a corba sequence out of a
list
	of CalObjChanges
	(Cal_get_objects_in_range): Implement new corba function

	* pcs/cal-backend.c (cal_backend_init): Intiliaze to NULL
	(cal_backend_load): Track the uri so we can write the log file
	to the same place
	(cal_backend_log_name): Figure out the log filename/path based on
	the calendar uri
	(cal_backend_set_node_timet): Set an xml node property value from
	a time_t
	(cal_backend_log_entry): Adds a log entry to list waiting to be
written
	out
	(cal_backend_log_sync): Syncs the log entries to disk
	(cal_backend_log_sax_start_element): SAX callback for reading in
	log entries
	(cal_backend_log_sax_end_element): ditto
	(cal_backend_log_sax_parse): Main SAX parser call to parse the log
	file looking for particular log entries and creating a
CalObjChange
	hash with the last change for each object
	(cal_backend_get_log_entries): Returns a hash of objects of a
given
	type changed since the given time
	(cal_backend_update_object): Add appropriate log entries
	(cal_backend_remove_object): ditto
	(cal_backend_get_changed_uids): Implement new idl interface call
	(cal_backend_foreach_changed): Convert CalObjChange hash into a
list

	* pcs/cal-backend-imc.[hc]: Remove crufty files

	* pcs/cal-backend-file.c (cal_backend_file_get_type_by_uid): New
	function that returns the CalObjType for a uid.

	* cal-client/cal-client.h: Update prototypes.

	* cal-client/cal-client.c (build_change_list): Build a list
	of CalObjChange items from a corba sequence.
	(cal_client_get_changed_uids): New accessor method for the
	similarly named addition to the idl file.

	* cal-util/cal-util.h: Update prototypes and add CalObjChangeType
	enum.

	* cal-util/cal-util.c (cal_obj_change_list_free): New utility
	method to free a list of CalObjChange objects.

	* idl/evolution-calendar.idl: Add get_changed_uids method
	and associated types.

svn path=/trunk/; revision=5512

2 files changed, 71 insertions, 0 deletions

diff --git a/calendar/cal-client/cal-client.c b/calendar/cal-client/cal-client.c
index 65c0c4aea4..7b5f248d85 100644
--- a/calendar/cal-client/cal-client.c
+++ b/calendar/cal-client/cal-client.c
@@ -1,3 +1,4 @@
+
 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
 /* Evolution calendar client
  *
@@ -800,6 +801,75 @@ cal_client_get_uids (CalClient *client, CalObjType type)
 	return uids;
 }
 
+/* Builds a GList of CalObjChange structures from the CORBA sequence */
+static GList *
+build_change_list (Evolution_Calendar_CalObjChangeSeq *seq)
+{
+	GList *list;
+	int i;
+
+	/* Create the list in reverse order */
+	list = NULL;
+	for (i = 0; i < seq->_length; i++) {
+		Evolution_Calendar_CalObjChange *corba_coc;
+		CalObjChange *coc;
+
+		corba_coc = &seq->_buffer[i];
+		coc = g_new (CalObjChange, 1);
+
+		coc->uid = g_strdup (corba_coc->uid);
+		coc->type = corba_coc->type;
+
+		list = g_list_prepend (list, coc);
+	}
+
+	list = g_list_reverse (list);
+	return list;
+}
+
+/**
+ * cal_client_get_changed_uids:
+ * @client: A calendar client.
+ * @type: Bitmask with types of objects to return.
+ *
+ * Queries a calendar for a list of unique identifiers corresponding to calendar
+ * objects whose type matches one of the types specified in the @type flags.
+ *
+ * Return value: A list of strings that are the sought UIDs.
+ **/
+GList *
+cal_client_get_changed_uids (CalClient *client, CalObjType type, time_t since)
+{
+	CalClientPrivate *priv;
+	CORBA_Environment ev;
+	Evolution_Calendar_CalObjChangeSeq *seq;
+	int t;
+	GList *changes;
+
+	g_return_val_if_fail (client != NULL, NULL);
+	g_return_val_if_fail (IS_CAL_CLIENT (client), NULL);
+
+	priv = client->priv;
+	g_return_val_if_fail (priv->load_state == LOAD_STATE_LOADED, NULL);
+
+	t = corba_obj_type (type);
+	CORBA_exception_init (&ev);
+
+	seq = Evolution_Calendar_Cal_get_changed_uids (priv->cal, t, since, &ev);
+	if (ev._major != CORBA_NO_EXCEPTION) {
+		g_message ("cal_client_get_changed_uids(): could not get the list of changes");
+		CORBA_exception_free (&ev);
+		return NULL;
+	}
+
+	CORBA_exception_free (&ev);
+
+	changes = build_change_list (seq);
+	CORBA_free (seq);
+
+	return changes;
+}
+
 /* FIXME: Not used? */
 #if 0
 /* Builds a GList of CalObjInstance structures from the CORBA sequence */
diff --git a/calendar/cal-client/cal-client.h b/calendar/cal-client/cal-client.h
index 6747c7488e..9853c63e2c 100644
--- a/calendar/cal-client/cal-client.h
+++ b/calendar/cal-client/cal-client.h
@@ -101,6 +101,7 @@ void cal_client_update_pilot_id (CalClient *client, char *uid,
 				 unsigned long pilot_status);
 
 GList *cal_client_get_uids (CalClient *client, CalObjType type);
+GList *cal_client_get_changed_uids (CalClient *client, CalObjType type, time_t since);
 
 GList *cal_client_get_objects_in_range (CalClient *client, CalObjType type,
 					time_t start, time_t end);