tdlight/td/telegram/net/NetQueryDispatcher.h

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//
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// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2023
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#pragma once
#include "td/telegram/net/DcId.h"
#include "td/telegram/net/NetQuery.h"
#include "td/actor/actor.h"
#include "td/utils/common.h"
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#include "td/utils/Promise.h"
#include "td/utils/ScopeGuard.h"
#include "td/utils/Status.h"
#include <array>
#include <atomic>
#include <functional>
#include <memory>
#include <mutex>
namespace td {
class DcAuthManager;
class MultiSequenceDispatcher;
class NetQueryDelayer;
class PublicRsaKeyShared;
class PublicRsaKeyWatchdog;
class SessionMultiProxy;
// Not just dispatcher.
class NetQueryDispatcher {
public:
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explicit NetQueryDispatcher(const std::function<ActorShared<>()> &create_reference);
NetQueryDispatcher();
NetQueryDispatcher(const NetQueryDispatcher &) = delete;
NetQueryDispatcher &operator=(const NetQueryDispatcher &) = delete;
NetQueryDispatcher(NetQueryDispatcher &&) = delete;
NetQueryDispatcher &operator=(NetQueryDispatcher &&) = delete;
~NetQueryDispatcher();
void dispatch(NetQueryPtr net_query);
void dispatch_with_callback(NetQueryPtr net_query, ActorShared<NetQueryCallback> callback);
void stop();
void update_session_count();
void destroy_auth_keys(Promise<> promise);
void update_use_pfs();
void update_mtproto_header();
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DcId get_main_dc_id() const {
return DcId::internal(main_dc_id_.load(std::memory_order_relaxed));
}
void set_main_dc_id(int32 new_main_dc_id);
void check_authorization_is_ok();
private:
std::atomic<bool> stop_flag_{false};
bool need_destroy_auth_key_{false};
ActorOwn<NetQueryDelayer> delayer_;
ActorOwn<DcAuthManager> dc_auth_manager_;
ActorOwn<MultiSequenceDispatcher> sequence_dispatcher_;
struct Dc {
DcId id_;
std::atomic<bool> is_valid_{false};
std::atomic<bool> is_inited_{false}; // TODO: cache in scheduler local storage :D
ActorOwn<SessionMultiProxy> main_session_;
ActorOwn<SessionMultiProxy> download_session_;
ActorOwn<SessionMultiProxy> download_small_session_;
ActorOwn<SessionMultiProxy> upload_session_;
};
static constexpr size_t MAX_DC_COUNT = 1000;
std::array<Dc, MAX_DC_COUNT> dcs_;
#if TD_EMSCRIPTEN // FIXME
std::atomic<int32> main_dc_id_{2};
#else
std::atomic<int32> main_dc_id_{1};
#endif
std::shared_ptr<PublicRsaKeyShared> common_public_rsa_key_;
ActorOwn<PublicRsaKeyWatchdog> public_rsa_key_watchdog_;
std::mutex main_dc_id_mutex_;
std::shared_ptr<Guard> td_guard_;
Status wait_dc_init(DcId dc_id, bool force);
bool is_dc_inited(int32 raw_dc_id);
static int32 get_session_count();
static bool get_use_pfs();
static void complete_net_query(NetQueryPtr net_query);
void try_fix_migrate(NetQueryPtr &net_query);
};
} // namespace td