114 lines
3.3 KiB
C++
114 lines
3.3 KiB
C++
//
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// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2022
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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#include "td/mtproto/HandshakeActor.h"
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#include "td/mtproto/HandshakeConnection.h"
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#include "td/utils/common.h"
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#include "td/utils/SliceBuilder.h"
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#include "td/utils/Status.h"
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namespace td {
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namespace mtproto {
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HandshakeActor::HandshakeActor(unique_ptr<AuthKeyHandshake> handshake, unique_ptr<RawConnection> raw_connection,
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unique_ptr<AuthKeyHandshakeContext> context, double timeout,
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Promise<unique_ptr<RawConnection>> raw_connection_promise,
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Promise<unique_ptr<AuthKeyHandshake>> handshake_promise)
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: handshake_(std::move(handshake))
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, connection_(make_unique<HandshakeConnection>(std::move(raw_connection), handshake_.get(), std::move(context)))
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, timeout_(timeout)
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, raw_connection_promise_(std::move(raw_connection_promise))
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, handshake_promise_(std::move(handshake_promise)) {
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}
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void HandshakeActor::close() {
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finish(Status::Error("Canceled"));
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stop();
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}
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void HandshakeActor::start_up() {
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Scheduler::subscribe(connection_->get_poll_info().extract_pollable_fd(this));
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set_timeout_in(timeout_);
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handshake_->set_timeout_in(timeout_);
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yield();
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}
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void HandshakeActor::loop() {
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auto status = connection_->flush();
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if (status.is_error()) {
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finish(std::move(status));
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return stop();
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}
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if (handshake_->is_ready_for_finish()) {
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finish(Status::OK());
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return stop();
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}
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}
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void HandshakeActor::hangup() {
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finish(Status::Error(1, "Canceled"));
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stop();
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}
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void HandshakeActor::timeout_expired() {
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finish(Status::Error("Timeout expired"));
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stop();
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}
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void HandshakeActor::tear_down() {
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finish(Status::OK());
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}
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void HandshakeActor::finish(Status status) {
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// NB: order may be important for parent
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return_connection(std::move(status));
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return_handshake();
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}
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void HandshakeActor::return_connection(Status status) {
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auto raw_connection = connection_->move_as_raw_connection();
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if (!raw_connection) {
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CHECK(!raw_connection_promise_);
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return;
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}
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if (status.is_error() && !raw_connection->extra().debug_str.empty()) {
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status = status.move_as_error_suffix(PSLICE() << " : " << raw_connection->extra().debug_str);
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}
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Scheduler::unsubscribe(raw_connection->get_poll_info().get_pollable_fd_ref());
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if (raw_connection_promise_) {
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if (status.is_error()) {
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if (raw_connection->stats_callback()) {
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raw_connection->stats_callback()->on_error();
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}
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raw_connection->close();
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raw_connection_promise_.set_error(std::move(status));
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} else {
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if (raw_connection->stats_callback()) {
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raw_connection->stats_callback()->on_pong();
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}
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raw_connection_promise_.set_value(std::move(raw_connection));
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}
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} else {
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if (raw_connection->stats_callback()) {
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raw_connection->stats_callback()->on_error();
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}
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raw_connection->close();
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}
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}
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void HandshakeActor::return_handshake() {
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if (!handshake_promise_) {
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CHECK(!handshake_);
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return;
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}
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handshake_promise_.set_value(std::move(handshake_));
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}
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} // namespace mtproto
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} // namespace td
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