forked from espressif/esp-protocols
109 lines
2.2 KiB
C++
109 lines
2.2 KiB
C++
#include "asio.hpp"
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#include <string>
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#include <iostream>
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#include "protocol_examples_common.h"
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#include "esp_event.h"
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#include "nvs_flash.h"
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using asio::ip::tcp;
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class session
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: public std::enable_shared_from_this<session>
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{
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public:
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session(tcp::socket socket)
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: socket_(std::move(socket))
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{
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}
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void start()
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{
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do_read();
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}
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private:
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void do_read()
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{
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auto self(shared_from_this());
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socket_.async_read_some(asio::buffer(data_, max_length),
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[this, self](std::error_code ec, std::size_t length)
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{
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if (!ec)
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{
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data_[length] = 0;
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std::cout << data_ << std::endl;
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do_write(length);
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}
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});
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}
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void do_write(std::size_t length)
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{
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auto self(shared_from_this());
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asio::async_write(socket_, asio::buffer(data_, length),
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[this, self](std::error_code ec, std::size_t length)
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{
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if (!ec)
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{
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do_read();
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}
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});
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}
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tcp::socket socket_;
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enum { max_length = 1024 };
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char data_[max_length];
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};
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class server
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{
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public:
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server(asio::io_context& io_context, short port)
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: acceptor_(io_context, tcp::endpoint(tcp::v4(), port))
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{
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do_accept();
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}
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private:
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void do_accept()
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{
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acceptor_.async_accept(
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[this](std::error_code ec, tcp::socket socket)
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{
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if (!ec)
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{
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std::make_shared<session>(std::move(socket))->start();
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}
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do_accept();
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});
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}
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tcp::acceptor acceptor_;
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};
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extern "C" void app_main(void)
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{
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ESP_ERROR_CHECK(nvs_flash_init());
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esp_netif_init();
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ESP_ERROR_CHECK(esp_event_loop_create_default());
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/* This helper function configures Wi-Fi or Ethernet, as selected in menuconfig.
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* Read "Establishing Wi-Fi or Ethernet Connection" section in
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* examples/protocols/README.md for more information about this function.
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*/
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ESP_ERROR_CHECK(example_connect());
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/* This helper function configures blocking UART I/O */
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ESP_ERROR_CHECK(example_configure_stdin_stdout());
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asio::io_context io_context;
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server s(io_context, std::atoi(CONFIG_EXAMPLE_PORT));
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std::cout << "ASIO engine is up and running" << std::endl;
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io_context.run();
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}
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