[PATCH RFC BlueZ 3/5] Time Profile: Add "timed" time provider

[Anderson Lizardo <anderson.lizardo@openbossa.org>]

From: Sheldon Demario <sheldon.demario@openbossa.org>

This provider adds support for timed, which is used on Harmattan for
managing time information.
---
 Makefile.am           |    2 +-
 time/provider-timed.c |  141 +++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 142 insertions(+), 1 deletions(-)
 create mode 100644 time/provider-timed.c

diff --git a/Makefile.am b/Makefile.am
index ac562b9..089d86f 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -346,7 +346,7 @@ EXTRA_DIST += src/genbuiltin src/bluetooth.conf \
 			audio/audio.conf audio/telephony-dummy.c \
 			audio/telephony-maemo5.c audio/telephony-ofono.c \
 			audio/telephony-maemo6.c sap/sap-dummy.c sap/sap-u8500.c \
-			time/provider-dummy.c \
+			time/provider-dummy.c time/provider-timed.c \
 			proximity/proximity.conf
 
 if ALSA
diff --git a/time/provider-timed.c b/time/provider-timed.c
new file mode 100644
index 0000000..62774e1
--- /dev/null
+++ b/time/provider-timed.c
@@ -0,0 +1,141 @@
+/*
+ *
+ *  BlueZ - Bluetooth protocol stack for Linux
+ *
+ *  Copyright (C) 2011  Nokia Corporation
+ *  Copyright (C) 2011  Marcel Holtmann <marcel@holtmann.org>
+ *
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <glib.h>
+#include <time.h>
+#include <errno.h>
+#include <bluetooth/uuid.h>
+#include <bluetooth/sdp.h>
+#include <dbus/dbus.h>
+#include <gdbus.h>
+
+#include "log.h"
+#include "server.h"
+#include "glib-helper.h"
+
+static guint watch = 0;
+static DBusConnection *connection = NULL;
+static gboolean source_online = FALSE;
+static uint8_t update_state = UPDATE_STATE_IDLE;
+static uint8_t update_result = UPDATE_RESULT_NOT_ATTEMPTED;
+
+uint8_t time_provider_control(int op)
+{
+	switch (op) {
+	case GET_REFERENCE_UPDATE:
+		/* Usually we should check for UPDATE_STATE_PENDING here, but
+		 * on Harmattan reference time updates are passive (through
+		 * cellular network). */
+
+		update_state = UPDATE_STATE_IDLE;
+		if (!source_online)
+			update_result = UPDATE_RESULT_NO_CONN;
+		else
+			update_result = UPDATE_RESULT_SUCCESSFUL;
+
+		break;
+	case CANCEL_REFERENCE_UPDATE:
+		update_state = UPDATE_STATE_IDLE;
+		update_result = UPDATE_RESULT_CANCELED;
+		break;
+	default:
+		DBG("Invalid control point value: 0x%02x", op);
+	}
+
+	return 0;
+}
+
+void time_provider_status(uint8_t *state, uint8_t *result)
+{
+	*state = update_state;
+	*result = update_result;
+}
+
+static gboolean settings_changed(DBusConnection *conn, DBusMessage *msg,
+								void *data)
+{
+	DBusMessageIter iter, res;
+
+	DBG("");
+
+	update_state = UPDATE_STATE_IDLE;
+
+	dbus_message_iter_init(msg, &iter);
+
+	if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRUCT) {
+		DBG("Unexpected signature");
+		update_result = UPDATE_RESULT_ERROR;
+
+		return TRUE;
+	}
+
+	dbus_message_iter_recurse(&iter, &res);
+	if (dbus_message_iter_get_arg_type(&res) != DBUS_TYPE_BOOLEAN) {
+		DBG("Unexpected signature");
+		update_result = UPDATE_RESULT_ERROR;
+
+		return TRUE;
+	}
+
+	dbus_message_iter_get_basic(&res, &source_online);
+	if (!source_online) {
+		DBG("No connection to reference time");
+		update_result = UPDATE_RESULT_NO_CONN;
+	} else
+		update_result = UPDATE_RESULT_SUCCESSFUL;
+
+	return TRUE;
+}
+
+int time_provider_init(void)
+{
+	connection = dbus_bus_get(DBUS_BUS_SYSTEM, NULL);
+
+	watch = g_dbus_add_signal_watch(connection, "com.nokia.time",
+							"/com/nokia/time",
+							"com.nokia.time",
+							"settings_changed",
+							settings_changed,
+							NULL, NULL);
+
+	if (watch == 0) {
+		dbus_connection_unref(connection);
+		return -ENOMEM;
+	}
+
+	return 0;
+}
+
+void time_provider_exit(void)
+{
+	g_dbus_remove_watch(connection, watch);
+	watch = 0;
+
+	dbus_connection_unref(connection);
+	connection = NULL;
+}
-- 
1.7.0.4