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//
// Copyright (C) 2012 The Android Open Source Project
//
// Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
#ifndef SHILL_DBUS_MANAGER_H_
#define SHILL_DBUS_MANAGER_H_
#include <list>
#include <map>
#include <memory>
#include <string>
#include <base/callback.h>
#include <base/cancelable_callback.h>
#include <base/macros.h>
#include <base/memory/weak_ptr.h>
#include <gtest/gtest_prod.h> // for FRIEND_TEST
#include "shill/dbus_name_watcher.h"
namespace shill {
class ControlInterface;
class DBusServiceProxyInterface;
class Error;
class DBusManager : public base::SupportsWeakPtr<DBusManager> {
public:
explicit DBusManager(ControlInterface* control_interface);
virtual ~DBusManager();
void Start();
void Stop();
// Creates and registers a watcher for DBus service |name|. When the service
// appears, |name_appeared_callback| is invoked if non-null. When the service
// vanishes, |name_vanished_callback| is invoked if non-null.
// |name_appeared_callback| or |name_vanished_callback| will be notified once
// asynchronously if the service has or doesn't have an owner, respectively,
// when this method is invoked. The returned watcher should be managed by the
// caller and may outlive this DBus manager. The watcher holds a weak pointer
// to this DBus manager. When it is destructed, it automatically calls
// RemoveNameWatcher() to deregister and remove itself from this DBus
// manager.
virtual DBusNameWatcher* CreateNameWatcher(
const std::string& name,
const DBusNameWatcher::NameAppearedCallback& name_appeared_callback,
const DBusNameWatcher::NameVanishedCallback& name_vanished_callback);
// Deregisters and removes the watcher such that it stops monitoring the
// associated DBus service name.
virtual void RemoveNameWatcher(DBusNameWatcher* name_watcher);
private:
friend class DBusManagerTest;
friend class ModemInfoTest;
friend class ModemManagerTest;
friend class PowerManagerTest;
friend class WiFiObjectTest;
friend class WiMaxProviderTest;
FRIEND_TEST(DBusManagerTest, NameWatchers);
FRIEND_TEST(WiMaxProviderTest, StartStop);
FRIEND_TEST(ModemManagerCoreTest, OnAppearVanish);
void OnNameOwnerChanged(const std::string& name,
const std::string& old_owner,
const std::string& new_owner);
void OnGetNameOwnerComplete(
const base::WeakPtr<DBusNameWatcher>& name_watcher,
const std::string& unique_name,
const Error& error);
ControlInterface* control_interface_;
std::unique_ptr<DBusServiceProxyInterface> proxy_;
std::map<std::string, std::list<DBusNameWatcher*>> name_watchers_;
DISALLOW_COPY_AND_ASSIGN(DBusManager);
};
} // namespace shill
#endif // SHILL_DBUS_MANAGER_H_
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