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Merge pull request #39 from kassane/cpp-threadpool
C++: add threadpool(4)
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commit
7817064885
1 changed files with 38 additions and 24 deletions
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@ -2,6 +2,7 @@
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#include <fstream>
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#include <string>
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#include <boost/beast.hpp>
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#include <boost/asio/thread_pool.hpp>
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namespace beast = boost::beast;
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namespace http = beast::http;
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@ -18,9 +19,28 @@ std::string read_html_file(const std::string& file_path) {
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return content;
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}
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void handle_client(tcp::socket socket, const std::string& msg) {
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try {
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// Construct an HTTP response with the HTML content
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http::response<http::string_body> response;
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response.version(11);
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response.result(http::status::ok);
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response.reason("OK");
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response.set(http::field::server, "C++ Server");
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response.set(http::field::content_type, "text/html");
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response.body() = msg;
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response.prepare_payload();
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// Send the response to the client
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http::write(socket, response);
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} catch (const std::exception& e) {
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std::cerr << "Error: " << e.what() << std::endl;
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}
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}
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int main() {
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try {
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net::io_context io_context;
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net::io_context io_context{BOOST_ASIO_CONCURRENCY_HINT_UNSAFE_IO};
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// Create an endpoint to bind to
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tcp::endpoint endpoint(tcp::v4(), 8070);
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@ -29,35 +49,29 @@ int main() {
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tcp::acceptor acceptor(io_context, endpoint);
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std::cout << "Server listening on port 8070..." << std::endl;
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// static 17-byte string
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std::string msg = "Hello from C++!!!";
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// or
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// Read HTML content from a file (e.g., "index.html")
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// std::string html_content = read_html_file("hello.html");
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// std::cout << "str len: " << (html_content.length() == msg.length()) << std::boolalpha << "\n";
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// Create a thread pool with 4 threads
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net::thread_pool pool(4);
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while (true) {
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// Wait for a client to connect
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tcp::socket socket(io_context);
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acceptor.accept(socket);
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// static 17-byte string
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// Read HTML content from a file (e.g., "index.html")
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// std::string html_content = read_html_file("hello.html");
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// or
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std::string msg = "Hello from C++!!!";
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// std::cout << "str len: " << (html_content.length() == msg.length()) << std::boolalpha << "\n";
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// Construct an HTTP response with the HTML content
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http::response<http::string_body> response;
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response.version(11);
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response.result(http::status::ok);
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response.reason("OK");
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response.set(http::field::server, "C++ Server");
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response.set(http::field::content_type, "text/html");
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// response.body() = html_content;
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response.body() = msg;
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response.prepare_payload();
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// Send the response to the client
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http::write(socket, response);
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// Post a task to the thread pool to handle the client request
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net::post(pool, [socket = std::move(socket), msg]() mutable {
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handle_client(std::move(socket), msg);
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});
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}
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// The thread pool destructor will ensure that all threads are joined properly.
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} catch (const std::exception& e) {
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std::cerr << "Error: " << e.what() << std::endl;
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}
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