tdesktop/Telegram/SourceFiles/mtproto/mtp_instance.h

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/*
This file is part of Telegram Desktop,
the official desktop version of Telegram messaging app, see https://telegram.org
Telegram Desktop 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 3 of the License, or
(at your option) any later version.
It 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.
In addition, as a special exception, the copyright holders give permission
to link the code of portions of this program with the OpenSSL library.
Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
*/
#pragma once
#include "mtproto/dcenter.h"
#include <map>
#include <set>
namespace MTP {
class DcOptions;
class Session;
class Instance : public QObject {
Q_OBJECT
public:
struct Config {
static constexpr auto kNoneMainDc = -1;
static constexpr auto kNotSetMainDc = 0;
static constexpr auto kDefaultMainDc = 2;
DcId mainDcId = kNotSetMainDc;
AuthKeysList keys;
};
enum class Mode {
Normal,
KeysDestroyer,
};
Instance(DcOptions *options, Mode mode, Config &&config);
Instance(const Instance &other) = delete;
Instance &operator=(const Instance &other) = delete;
void suggestMainDcId(DcId mainDcId);
void setMainDcId(DcId mainDcId);
DcId mainDcId() const;
void setKeyForWrite(DcId dcId, const AuthKeyPtr &key);
AuthKeysList getKeysForWrite() const;
void addKeysForDestroy(AuthKeysList &&keys);
DcOptions *dcOptions();
template <typename TRequest>
mtpRequestId send(const TRequest &request, RPCResponseHandler callbacks = RPCResponseHandler(), ShiftedDcId dcId = 0, TimeMs msCanWait = 0, mtpRequestId after = 0) {
if (auto session = getSession(dcId)) {
return session->send(request, callbacks, msCanWait, true, !dcId, after);
}
return 0;
}
template <typename TRequest>
mtpRequestId send(const TRequest &request, RPCDoneHandlerPtr onDone, RPCFailHandlerPtr onFail = RPCFailHandlerPtr(), int32 dc = 0, TimeMs msCanWait = 0, mtpRequestId after = 0) {
return send(request, RPCResponseHandler(onDone, onFail), dc, msCanWait, after);
}
void sendAnything(ShiftedDcId dcId = 0, TimeMs msCanWait = 0) {
if (auto session = getSession(dcId)) {
session->sendAnything(msCanWait);
}
}
void restart();
void restart(ShiftedDcId shiftedDcId);
int32 dcstate(ShiftedDcId shiftedDcId = 0);
QString dctransport(ShiftedDcId shiftedDcId = 0);
void ping();
void cancel(mtpRequestId requestId);
int32 state(mtpRequestId requestId); // < 0 means waiting for such count of ms
void killSession(ShiftedDcId shiftedDcId);
void stopSession(ShiftedDcId shiftedDcId);
void logout(RPCDoneHandlerPtr onDone, RPCFailHandlerPtr onFail);
internal::DcenterPtr getDcById(ShiftedDcId shiftedDcId);
void unpaused();
void queueQuittingConnection(std::unique_ptr<internal::Connection> connection);
void setUpdatesHandler(RPCDoneHandlerPtr onDone);
void setGlobalFailHandler(RPCFailHandlerPtr onFail);
void setStateChangedHandler(base::lambda<void(ShiftedDcId shiftedDcId, int32 state)> handler);
void setSessionResetHandler(base::lambda<void(ShiftedDcId shiftedDcId)> handler);
void clearGlobalHandlers();
void onStateChange(ShiftedDcId dcWithShift, int32 state);
void onSessionReset(ShiftedDcId dcWithShift);
void registerRequest(mtpRequestId requestId, ShiftedDcId dcWithShift);
mtpRequestId storeRequest(mtpRequest &request, const RPCResponseHandler &parser);
mtpRequest getRequest(mtpRequestId requestId);
void clearCallbacksDelayed(const RPCCallbackClears &requestIds);
void execCallback(mtpRequestId requestId, const mtpPrime *from, const mtpPrime *end);
bool hasCallbacks(mtpRequestId requestId);
void globalCallback(const mtpPrime *from, const mtpPrime *end);
// return true if need to clean request data
bool rpcErrorOccured(mtpRequestId requestId, const RPCFailHandlerPtr &onFail, const RPCError &err);
bool isKeysDestroyer() const;
void scheduleKeyDestroy(ShiftedDcId shiftedDcId);
void configLoadRequest();
void cdnConfigLoadRequest();
~Instance();
public slots:
void connectionFinished(internal::Connection *connection);
signals:
void configLoaded();
void cdnConfigLoaded();
void keyDestroyed(qint32 shiftedDcId);
void allKeysDestroyed();
private slots:
void onKeyDestroyed(qint32 shiftedDcId);
void onClearKilledSessions();
private:
internal::Session *getSession(ShiftedDcId shiftedDcId);
class Private;
const std::unique_ptr<Private> _private;
};
} // namespace MTP