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// Copyright (C) 2013-2015 Bayerische Motoren Werke Aktiengesellschaft (BMW AG)
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
#if !defined (COMMONAPI_INTERNAL_COMPILATION)
#error "Only <CommonAPI/CommonAPI.hpp> can be included directly, this file may disappear or change contents."
#endif
#ifndef COMMONAPI_DBUS_DBUS_EVENT_HPP_
#define COMMONAPI_DBUS_DBUS_EVENT_HPP_
#include <CommonAPI/Event.hpp>
#include <CommonAPI/DBus/DBusAddress.hpp>
#include <CommonAPI/DBus/DBusHelper.hpp>
#include <CommonAPI/DBus/DBusMessage.hpp>
#include <CommonAPI/DBus/DBusProxyBase.hpp>
#include <CommonAPI/DBus/DBusProxyConnection.hpp>
#include <CommonAPI/DBus/DBusSerializableArguments.hpp>
namespace CommonAPI {
namespace DBus {
template <typename _Event, typename... _Arguments>
class DBusEvent: public _Event, public DBusProxyConnection::DBusSignalHandler {
public:
typedef typename _Event::Listener Listener;
DBusEvent(DBusProxyBase &_proxy,
const std::string &_name, const std::string &_signature,
std::tuple<_Arguments...> _arguments)
: proxy_(_proxy),
name_(_name), signature_(_signature),
arguments_(_arguments) {
interface_ = proxy_.getDBusAddress().getInterface();
path_ = proxy_.getDBusAddress().getObjectPath();
}
DBusEvent(DBusProxyBase &_proxy,
const std::string &_name, const std::string &_signature,
const std::string &_path, const std::string &_interface,
std::tuple<_Arguments...> _arguments)
: proxy_(_proxy),
name_(_name), signature_(_signature),
path_(_path), interface_(_interface),
arguments_(_arguments) {
}
virtual ~DBusEvent() {
proxy_.removeSignalMemberHandler(subscription_, this);
}
virtual void onSignalDBusMessage(const DBusMessage &_message) {
handleSignalDBusMessage(_message, typename make_sequence<sizeof...(_Arguments)>::type());
}
protected:
virtual void onFirstListenerAdded(const Listener&) {
subscription_ = proxy_.addSignalMemberHandler(
path_, interface_, name_, signature_, this);
}
virtual void onLastListenerRemoved(const Listener&) {
proxy_.removeSignalMemberHandler(subscription_, this);
}
template<int ... _Indices>
inline void handleSignalDBusMessage(const DBusMessage &_message, index_sequence<_Indices...>) {
DBusInputStream input(_message);
if (DBusSerializableArguments<
_Arguments...
>::deserialize(input, std::get<_Indices>(arguments_)...)) {
this->notifyListeners(std::get<_Indices>(arguments_)...);
}
}
DBusProxyBase &proxy_;
std::string name_;
std::string signature_;
std::string path_;
std::string interface_;
DBusProxyConnection::DBusSignalHandlerToken subscription_;
std::tuple<_Arguments...> arguments_;
};
} // namespace DBus
} // namespace CommonAPI
#endif // COMMONAPI_DBUS_DBUS_EVENT_HPP_
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