tdlight/td/mtproto/ConnectionManager.h

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2021-09-16 18:09:39 +02:00
//
// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2021
//
// 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/actor/actor.h"
#include "td/utils/common.h"
namespace td {
namespace mtproto {
class ConnectionManager : public Actor {
public:
class ConnectionToken {
public:
ConnectionToken() = default;
explicit ConnectionToken(ActorShared<ConnectionManager> connection_manager)
: connection_manager_(std::move(connection_manager)) {
}
ConnectionToken(const ConnectionToken &) = delete;
ConnectionToken &operator=(const ConnectionToken &) = delete;
ConnectionToken(ConnectionToken &&) = default;
ConnectionToken &operator=(ConnectionToken &&other) {
reset();
connection_manager_ = std::move(other.connection_manager_);
return *this;
}
~ConnectionToken() {
reset();
}
void reset() {
if (!connection_manager_.empty()) {
send_closure(connection_manager_, &ConnectionManager::dec_connect);
connection_manager_.reset();
}
}
bool empty() const {
return connection_manager_.empty();
}
private:
ActorShared<ConnectionManager> connection_manager_;
};
static ConnectionToken connection(ActorId<ConnectionManager> connection_manager) {
return connection_impl(connection_manager, 1);
}
static ConnectionToken connection_proxy(ActorId<ConnectionManager> connection_manager) {
return connection_impl(connection_manager, 2);
}
protected:
uint32 connect_cnt_ = 0;
uint32 connect_proxy_cnt_ = 0;
private:
void inc_connect();
void dec_connect();
static ConnectionToken connection_impl(ActorId<ConnectionManager> connection_manager, int mode);
};
} // namespace mtproto
} // namespace td