AyuGramDesktop/Telegram/SourceFiles/mtproto/dcenter.cpp
John Preston 08167a6a91 Removed #include "stdafx.h" from all files.
Currently the build without implicitly included precompiled header
is not supported anyway (because Qt MOC source files do not include
stdafx.h, they include plain headers).

So when we decide to support building without implicitly included
precompiled headers we'll have to fix all the headers anyway.
2017-03-04 12:27:52 +03:00

126 lines
3.4 KiB
C++

/*
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
*/
#include "mtproto/dcenter.h"
#include "mtproto/facade.h"
#include "mtproto/dc_options.h"
#include "mtproto/mtp_instance.h"
#include "localstorage.h"
namespace MTP {
namespace internal {
namespace {
constexpr auto kEnumerateDcTimeout = 8000; // 8 seconds timeout for help_getConfig to work (then move to other dc)
} // namespace
Dcenter::Dcenter(Instance *instance, DcId dcId, AuthKeyPtr &&key)
: _instance(instance)
, _id(dcId)
, _key(std::move(key)) {
connect(this, SIGNAL(authKeyCreated()), this, SLOT(authKeyWrite()), Qt::QueuedConnection);
}
void Dcenter::authKeyWrite() {
DEBUG_LOG(("AuthKey Info: MTProtoDC::authKeyWrite() slot, dc %1").arg(_id));
if (_key) {
Local::writeMtpData();
}
}
void Dcenter::setKey(AuthKeyPtr &&key) {
DEBUG_LOG(("AuthKey Info: MTProtoDC::setKey(%1), emitting authKeyCreated, dc %2").arg(key ? key->keyId() : 0).arg(_id));
_key = std::move(key);
_connectionInited = false;
_instance->setKeyForWrite(_id, _key);
emit authKeyCreated();
}
QReadWriteLock *Dcenter::keyMutex() const {
return &keyLock;
}
const AuthKeyPtr &Dcenter::getKey() const {
return _key;
}
void Dcenter::destroyKey() {
setKey(AuthKeyPtr());
}
ConfigLoader::ConfigLoader(Instance *instance, RPCDoneHandlerPtr onDone, RPCFailHandlerPtr onFail) : _instance(instance)
, _doneHandler(onDone)
, _failHandler(onFail) {
connect(&_enumDCTimer, SIGNAL(timeout()), this, SLOT(enumDC()));
}
void ConfigLoader::load() {
if (!_instance->isKeysDestroyer()) {
sendRequest(_instance->mainDcId());
_enumDCTimer.start(kEnumerateDcTimeout);
} else {
auto ids = _instance->dcOptions()->sortedDcIds();
t_assert(!ids.empty());
_enumCurrent = ids.front();
enumDC();
}
}
mtpRequestId ConfigLoader::sendRequest(ShiftedDcId shiftedDcId) {
return _instance->send(MTPhelp_GetConfig(), _doneHandler, _failHandler, shiftedDcId);
}
ConfigLoader::~ConfigLoader() {
if (_enumRequest) {
_instance->cancel(_enumRequest);
}
if (_enumCurrent) {
_instance->killSession(MTP::configDcId(_enumCurrent));
}
}
void ConfigLoader::enumDC() {
if (_enumRequest) {
_instance->cancel(_enumRequest);
}
if (!_enumCurrent) {
_enumCurrent = _instance->mainDcId();
} else {
_instance->killSession(MTP::configDcId(_enumCurrent));
}
auto ids = _instance->dcOptions()->sortedDcIds();
t_assert(!ids.empty());
auto i = std::find(ids.cbegin(), ids.cend(), _enumCurrent);
if (i == ids.cend() || (++i) == ids.cend()) {
_enumCurrent = ids.front();
} else {
_enumCurrent = *i;
}
_enumRequest = sendRequest(MTP::configDcId(_enumCurrent));
_enumDCTimer.start(kEnumerateDcTimeout);
}
} // namespace internal
} // namespace MTP