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// Copyright (C) 2013-2020 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_DBUSMAINLOOPCONTEXT_HPP_
#define COMMONAPI_DBUS_DBUSMAINLOOPCONTEXT_HPP_
#include <list>
#include <memory>
#include <queue>
#include <atomic>
#include <dbus/dbus.h>
#include <CommonAPI/MainLoopContext.hpp>
#include <CommonAPI/DBus/DBusProxyConnection.hpp>
namespace CommonAPI {
namespace DBus {
class DBusConnection;
class DBusDispatchSource: public DispatchSource {
public:
DBusDispatchSource(std::weak_ptr<DBusConnection> dbusConnection);
~DBusDispatchSource();
bool prepare(int64_t& timeout);
bool check();
bool dispatch();
private:
std::weak_ptr<DBusConnection> dbusConnection_;
};
class DBusQueueWatch;
class DBusQueueDispatchSource: public DispatchSource {
public:
DBusQueueDispatchSource(DBusQueueWatch* watch);
virtual ~DBusQueueDispatchSource();
bool prepare(int64_t& timeout);
bool check();
bool dispatch();
private:
DBusQueueWatch* watch_;
};
class DBusWatch: public Watch {
public:
DBusWatch(::DBusWatch* libdbusWatch, std::weak_ptr<MainLoopContext>& mainLoopContext,
std::weak_ptr<DBusConnection>& dbusConnection);
bool isReadyToBeWatched();
void startWatching();
void stopWatching();
void dispatch(unsigned int eventFlags);
const pollfd& getAssociatedFileDescriptor();
#ifdef _WIN32
const HANDLE& getAssociatedEvent();
#endif
const std::vector<DispatchSource*>& getDependentDispatchSources();
void addDependentDispatchSource(DispatchSource* dispatchSource);
private:
bool isReady();
::DBusWatch* libdbusWatch_;
pollfd pollFileDescriptor_;
std::vector<DispatchSource*> dependentDispatchSources_;
std::mutex dependentDispatchSourcesMutex_;
std::weak_ptr<MainLoopContext> mainLoopContext_;
std::weak_ptr<DBusConnection> dbusConnection_;
#ifdef _WIN32
HANDLE wsaEvent_;
#endif
};
struct QueueEntry;
class DBusQueueWatch : public Watch {
public:
DBusQueueWatch(std::shared_ptr<DBusConnection> _connection);
virtual ~DBusQueueWatch();
void dispatch(unsigned int eventFlags);
const pollfd& getAssociatedFileDescriptor();
#ifdef _WIN32
const HANDLE& getAssociatedEvent();
#endif
const std::vector<DispatchSource*>& getDependentDispatchSources();
void addDependentDispatchSource(CommonAPI::DispatchSource* _dispatchSource);
void removeDependentDispatchSource(CommonAPI::DispatchSource* _dispatchSource);
void pushQueue(std::shared_ptr<QueueEntry> _queueEntry);
void popQueue();
std::shared_ptr<QueueEntry> frontQueue();
bool emptyQueue();
void processQueueEntry(std::shared_ptr<QueueEntry> _queueEntry);
private:
#ifdef _WIN32
int pipeFileDescriptors_[2];
#else
int eventFd_;
#endif
pollfd pollFileDescriptor_;
std::vector<CommonAPI::DispatchSource*> dependentDispatchSources_;
std::queue<std::shared_ptr<QueueEntry>> queue_;
std::mutex queueMutex_;
std::mutex dependentDispatchSourcesMutex_;
std::weak_ptr<DBusConnection> connection_;
#ifdef _WIN32
HANDLE wsaEvent_;
const int pipeValue_;
#else
const std::uint64_t eventFdValue_;
#endif
};
} // namespace DBus
} // namespace CommonAPI
#endif // COMMONAPI_DBUS_DBUSMAINLOOPCONTEXT_HPP_
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