121 lines
3.0 KiB
C++
121 lines
3.0 KiB
C++
//
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// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2020
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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/actor/actor.h"
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#include "td/net/HttpHeaderCreator.h"
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#include "td/net/HttpQuery.h"
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#include "td/net/HttpReader.h"
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#include "td/net/TcpListener.h"
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#include "td/utils/buffer.h"
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#include "td/utils/BufferedFd.h"
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#include "td/utils/logging.h"
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#include "td/utils/port/detail/PollableFd.h"
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#include "td/utils/port/SocketFd.h"
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#include "td/utils/Slice.h"
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#include "td/utils/Status.h"
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namespace td {
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class HttpEchoConnection : public Actor {
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public:
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explicit HttpEchoConnection(SocketFd fd) : fd_(std::move(fd)) {
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}
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private:
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BufferedFd<SocketFd> fd_;
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HttpReader reader_;
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HttpQuery query_;
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void start_up() override {
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Scheduler::subscribe(fd_.get_poll_info().extract_pollable_fd(this));
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reader_.init(&fd_.input_buffer(), 1024 * 1024, 0);
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}
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void handle_query() {
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query_ = HttpQuery();
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HttpHeaderCreator hc;
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Slice content = "hello world";
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//auto content = BufferSlice("hello world");
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hc.init_ok();
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hc.set_keep_alive();
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hc.set_content_size(content.size());
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hc.add_header("Server", "TDLib/test");
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hc.add_header("Date", "Thu Dec 14 01:41:50 2017");
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hc.add_header("Content-Type:", "text/html");
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auto res = hc.finish(content);
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fd_.output_buffer().append(res.ok());
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}
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void loop() override {
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auto status = [&] {
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TRY_STATUS(loop_read());
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TRY_STATUS(loop_write());
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return Status::OK();
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}();
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if (status.is_error() || can_close(fd_)) {
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stop();
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}
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}
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Status loop_read() {
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if (can_read(fd_)) {
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TRY_STATUS(fd_.flush_read());
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}
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while (true) {
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TRY_RESULT(need, reader_.read_next(&query_));
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if (need == 0) {
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handle_query();
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} else {
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break;
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}
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}
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return Status::OK();
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}
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Status loop_write() {
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TRY_STATUS(fd_.flush_write());
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return Status::OK();
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}
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};
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const int N = 4;
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class Server : public TcpListener::Callback {
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public:
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void start_up() override {
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listener_ = create_actor<TcpListener>("Listener", 8082, ActorOwn<TcpListener::Callback>(actor_id(this)));
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}
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void accept(SocketFd fd) override {
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pos_++;
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auto scheduler_id = pos_ % (N != 0 ? N : 1) + (N != 0);
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create_actor_on_scheduler<HttpEchoConnection>("HttpInboundConnection", scheduler_id, std::move(fd)).release();
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}
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void hangup() override {
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LOG(ERROR) << "Hanging up..";
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stop();
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}
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private:
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ActorOwn<TcpListener> listener_;
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int pos_{0};
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};
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int main() {
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SET_VERBOSITY_LEVEL(VERBOSITY_NAME(ERROR));
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auto scheduler = make_unique<ConcurrentScheduler>();
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scheduler->init(N);
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scheduler->create_actor_unsafe<Server>(0, "Server").release();
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scheduler->start();
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while (scheduler->run_main(10)) {
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// empty
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}
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scheduler->finish();
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return 0;
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}
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} // namespace td
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int main() {
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return td::main();
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}
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