gecko/netwerk/system/maemo/nsMaemoNetworkManager.cpp

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=2 et sw=2 tw=80: */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Nokia.
*
* The Initial Developer of the Original Code is Nokia Corporation.
* Portions created by the Initial Developer are Copyright (C) 2009
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Jeremias Bosch <jeremias.bosch@gmail.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "nsMaemoNetworkManager.h"
#include "mozilla/Monitor.h"
#include <dbus/dbus.h>
#include <dbus/dbus-glib-lowlevel.h>
#include <conic/conicconnection.h>
#include <conic/conicconnectionevent.h>
#include <conicstatisticsevent.h>
#include <stdio.h>
#include <unistd.h>
#include "nsIOService.h"
#include "nsIObserverService.h"
#include "nsIOService.h"
#include "nsCOMPtr.h"
#include "nsThreadUtils.h"
#include "nsINetworkLinkService.h"
enum InternalState
{
InternalState_Invalid = -1,
InternalState_Disconnected,
InternalState_Connected
};
static InternalState gInternalState = InternalState_Invalid;
static ConIcConnection* gConnection = nsnull;
static PRBool gConnectionCallbackInvoked = PR_FALSE;
using namespace mozilla;
static Monitor* gMonitor = nsnull;
static void NotifyNetworkLinkObservers()
{
nsCOMPtr<nsIIOService> ioService = do_GetService("@mozilla.org/network/io-service;1");
if (!ioService)
return;
ioService->SetOffline(gInternalState != InternalState_Connected);
}
static void
connection_event_callback(ConIcConnection *aConnection,
ConIcConnectionEvent *aEvent,
gpointer aUser_data)
{
ConIcConnectionStatus status = con_ic_connection_event_get_status(aEvent);
{
MonitorAutoEnter mon(*gMonitor);
// When we are not connected, we are always disconnected.
gInternalState = (CON_IC_STATUS_CONNECTED == status ?
InternalState_Connected : InternalState_Disconnected);
gConnectionCallbackInvoked = PR_TRUE;
mon.Notify();
}
NotifyNetworkLinkObservers();
}
PRBool
nsMaemoNetworkManager::OpenConnectionSync()
{
if (NS_IsMainThread() || !gConnection)
return PR_FALSE;
// protect gInternalState. This also allows us
// to block and wait in this method on this thread
// until our callback on the main thread.
MonitorAutoEnter mon(*gMonitor);
gConnectionCallbackInvoked = PR_FALSE;
if (!con_ic_connection_connect(gConnection,
CON_IC_CONNECT_FLAG_NONE))
g_error("openConnectionSync: Error while connecting. %p \n",
(void*) PR_GetCurrentThread());
while (!gConnectionCallbackInvoked)
mon.Wait();
if (gInternalState == InternalState_Connected)
return PR_TRUE;
return PR_FALSE;
}
void
nsMaemoNetworkManager::CloseConnection()
{
if (gConnection)
con_ic_connection_disconnect(gConnection);
}
PRBool
nsMaemoNetworkManager::IsConnected()
{
return gInternalState == InternalState_Connected;
}
PRBool
nsMaemoNetworkManager::GetLinkStatusKnown()
{
return gInternalState != InternalState_Invalid;
}
PRBool
nsMaemoNetworkManager::Startup()
{
if (gConnection)
return PR_TRUE;
gMonitor = new Monitor("MaemoAutodialer");
if (!gMonitor)
return PR_FALSE;
DBusError error;
dbus_error_init(&error);
DBusConnection* dbusConnection = dbus_bus_get(DBUS_BUS_SYSTEM, &error);
NS_ASSERTION(dbusConnection, "Error when connecting to the session bus");
dbus_connection_setup_with_g_main(dbusConnection, nsnull);
// grab a connection:
gConnection = con_ic_connection_new();
NS_ASSERTION(gConnection, "Error when creating connection");
if (!gConnection) {
delete gMonitor;
gMonitor = nsnull;
return PR_FALSE;
}
g_signal_connect(G_OBJECT(gConnection),
"connection-event",
G_CALLBACK(connection_event_callback),
nsnull);
g_object_set(G_OBJECT(gConnection),
"automatic-connection-events",
PR_TRUE,
nsnull);
return PR_TRUE;
}
void
nsMaemoNetworkManager::Shutdown()
{
gConnection = nsnull;
if (gMonitor) {
// notify anyone waiting
MonitorAutoEnter mon(*gMonitor);
gInternalState = InternalState_Invalid;
mon.Notify();
}
// We are leaking the gMonitor because a race condition could occur. We need
// a notification after xpcom-shutdown-threads so we can safely delete the monitor
}