diff options
Diffstat (limited to '3rdparty/asio/src/examples/cpp03/spawn')
-rw-r--r-- | 3rdparty/asio/src/examples/cpp03/spawn/echo_server.cpp | 122 | ||||
-rw-r--r-- | 3rdparty/asio/src/examples/cpp03/spawn/parallel_grep.cpp | 89 |
2 files changed, 0 insertions, 211 deletions
diff --git a/3rdparty/asio/src/examples/cpp03/spawn/echo_server.cpp b/3rdparty/asio/src/examples/cpp03/spawn/echo_server.cpp deleted file mode 100644 index 4549b446245..00000000000 --- a/3rdparty/asio/src/examples/cpp03/spawn/echo_server.cpp +++ /dev/null @@ -1,122 +0,0 @@ -// -// echo_server.cpp -// ~~~~~~~~~~~~~~~ -// -// Copyright (c) 2003-2021 Christopher M. Kohlhoff (chris at kohlhoff dot com) -// -// 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) -// - -#include <asio/io_context.hpp> -#include <asio/ip/tcp.hpp> -#include <asio/spawn.hpp> -#include <asio/steady_timer.hpp> -#include <asio/write.hpp> -#include <boost/bind/bind.hpp> -#include <boost/shared_ptr.hpp> -#include <boost/enable_shared_from_this.hpp> -#include <iostream> - -using asio::ip::tcp; - -class session : public boost::enable_shared_from_this<session> -{ -public: - explicit session(asio::io_context& io_context) - : strand_(asio::make_strand(io_context)), - socket_(io_context), - timer_(io_context) - { - } - - tcp::socket& socket() - { - return socket_; - } - - void go() - { - asio::spawn(strand_, - boost::bind(&session::echo, - shared_from_this(), boost::placeholders::_1)); - asio::spawn(strand_, - boost::bind(&session::timeout, - shared_from_this(), boost::placeholders::_1)); - } - -private: - void echo(asio::yield_context yield) - { - try - { - char data[128]; - for (;;) - { - timer_.expires_after(asio::chrono::seconds(10)); - std::size_t n = socket_.async_read_some(asio::buffer(data), yield); - asio::async_write(socket_, asio::buffer(data, n), yield); - } - } - catch (std::exception& e) - { - socket_.close(); - timer_.cancel(); - } - } - - void timeout(asio::yield_context yield) - { - while (socket_.is_open()) - { - asio::error_code ignored_ec; - timer_.async_wait(yield[ignored_ec]); - if (timer_.expiry() <= asio::steady_timer::clock_type::now()) - socket_.close(); - } - } - - asio::strand<asio::io_context::executor_type> strand_; - tcp::socket socket_; - asio::steady_timer timer_; -}; - -void do_accept(asio::io_context& io_context, - unsigned short port, asio::yield_context yield) -{ - tcp::acceptor acceptor(io_context, tcp::endpoint(tcp::v4(), port)); - - for (;;) - { - asio::error_code ec; - boost::shared_ptr<session> new_session(new session(io_context)); - acceptor.async_accept(new_session->socket(), yield[ec]); - if (!ec) new_session->go(); - } -} - -int main(int argc, char* argv[]) -{ - try - { - if (argc != 2) - { - std::cerr << "Usage: echo_server <port>\n"; - return 1; - } - - asio::io_context io_context; - - asio::spawn(io_context, - boost::bind(do_accept, - boost::ref(io_context), atoi(argv[1]), boost::placeholders::_1)); - - io_context.run(); - } - catch (std::exception& e) - { - std::cerr << "Exception: " << e.what() << "\n"; - } - - return 0; -} diff --git a/3rdparty/asio/src/examples/cpp03/spawn/parallel_grep.cpp b/3rdparty/asio/src/examples/cpp03/spawn/parallel_grep.cpp deleted file mode 100644 index 7fe1817a25e..00000000000 --- a/3rdparty/asio/src/examples/cpp03/spawn/parallel_grep.cpp +++ /dev/null @@ -1,89 +0,0 @@ -// -// parallel_grep.cpp -// ~~~~~~~~~~~~~~~~~ -// -// Copyright (c) 2003-2021 Christopher M. Kohlhoff (chris at kohlhoff dot com) -// -// 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) -// - -#include <asio/dispatch.hpp> -#include <asio/post.hpp> -#include <asio/spawn.hpp> -#include <asio/strand.hpp> -#include <asio/thread_pool.hpp> -#include <boost/bind/bind.hpp> -#include <fstream> -#include <iostream> -#include <string> - -using asio::dispatch; -using asio::spawn; -using asio::strand; -using asio::thread_pool; -using asio::yield_context; - -void print_match(std::string input_file, std::string line) -{ - std::cout << input_file << ':' << line << std::endl; -} - -void search_file(std::string search_string, std::string input_file, - strand<thread_pool::executor_type> output_strand, yield_context yield) -{ - std::ifstream is(input_file.c_str()); - std::string line; - std::size_t line_num = 0; - while (std::getline(is, line)) - { - // If we find a match, send a message to the output. - if (line.find(search_string) != std::string::npos) - { - dispatch(output_strand, boost::bind(&print_match, input_file, line)); - } - - // Every so often we yield control to another coroutine. - if (++line_num % 10 == 0) - post(yield); - } -} - -int main(int argc, char* argv[]) -{ - try - { - if (argc < 2) - { - std::cerr << "Usage: parallel_grep <string> <files...>\n"; - return 1; - } - - // We use a fixed size pool of threads for reading the input files. The - // number of threads is automatically determined based on the number of - // CPUs available in the system. - thread_pool pool; - - // To prevent the output from being garbled, we use a strand to synchronise - // printing. - strand<thread_pool::executor_type> output_strand(pool.get_executor()); - - // Spawn a new coroutine for each file specified on the command line. - std::string search_string = argv[1]; - for (int argn = 2; argn < argc; ++argn) - { - std::string input_file = argv[argn]; - spawn(pool, boost::bind(&search_file, search_string, - input_file, output_strand, boost::placeholders::_1)); - } - - // Join the thread pool to wait for all the spawned tasks to complete. - pool.join(); - } - catch (std::exception& e) - { - std::cerr << "Exception: " << e.what() << "\n"; - } - - return 0; -} |