From 4c2424c805b22b6aa828735db52eb243b19c808e Mon Sep 17 00:00:00 2001 From: Justin Kerk Date: Fri, 22 May 2020 21:04:53 -0700 Subject: New not working software list additions --------------------------------------- ibm5150: Wizzardz & War Lordz [LGR] (nw) cleanups, move SimLife to ibm5170 (#6728) --- .../cpp03/timeouts/blocking_tcp_client.cpp | 242 --------------------- 1 file changed, 242 deletions(-) delete mode 100644 3rdparty/asio/src/examples/cpp03/timeouts/blocking_tcp_client.cpp (limited to '3rdparty') diff --git a/3rdparty/asio/src/examples/cpp03/timeouts/blocking_tcp_client.cpp b/3rdparty/asio/src/examples/cpp03/timeouts/blocking_tcp_client.cpp deleted file mode 100644 index 69d467af1bb..00000000000 --- a/3rdparty/asio/src/examples/cpp03/timeouts/blocking_tcp_client.cpp +++ /dev/null @@ -1,242 +0,0 @@ -// -// blocking_tcp_client.cpp -// ~~~~~~~~~~~~~~~~~~~~~~~ -// -// Copyright (c) 2003-2016 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/connect.hpp" -#include "asio/deadline_timer.hpp" -#include "asio/io_context.hpp" -#include "asio/ip/tcp.hpp" -#include "asio/read_until.hpp" -#include "asio/streambuf.hpp" -#include "asio/system_error.hpp" -#include "asio/write.hpp" -#include "asio/thread.hpp" -#include -#include -#include -#include -#include - -using asio::deadline_timer; -using asio::ip::tcp; -using boost::lambda::bind; -using boost::lambda::var; -using boost::lambda::_1; - -//---------------------------------------------------------------------- - -// -// This class manages socket timeouts by applying the concept of a deadline. -// Each asynchronous operation is given a deadline by which it must complete. -// Deadlines are enforced by an "actor" that persists for the lifetime of the -// client object: -// -// +----------------+ -// | | -// | check_deadline |<---+ -// | | | -// +----------------+ | async_wait() -// | | -// +---------+ -// -// If the actor determines that the deadline has expired, the socket is closed -// and any outstanding operations are consequently cancelled. The socket -// operations themselves use boost::lambda function objects as completion -// handlers. For a given socket operation, the client object runs the -// io_context to block thread execution until the actor completes. -// -class client -{ -public: - client() - : socket_(io_context_), - deadline_(io_context_) - { - // No deadline is required until the first socket operation is started. We - // set the deadline to positive infinity so that the actor takes no action - // until a specific deadline is set. - deadline_.expires_at(boost::posix_time::pos_infin); - - // Start the persistent actor that checks for deadline expiry. - check_deadline(); - } - - void connect(const std::string& host, const std::string& service, - boost::posix_time::time_duration timeout) - { - // Resolve the host name and service to a list of endpoints. - tcp::resolver::results_type endpoints = - tcp::resolver(io_context_).resolve(host, service); - - // Set a deadline for the asynchronous operation. As a host name may - // resolve to multiple endpoints, this function uses the composed operation - // async_connect. The deadline applies to the entire operation, rather than - // individual connection attempts. - deadline_.expires_from_now(timeout); - - // Set up the variable that receives the result of the asynchronous - // operation. The error code is set to would_block to signal that the - // operation is incomplete. Asio guarantees that its asynchronous - // operations will never fail with would_block, so any other value in - // ec indicates completion. - asio::error_code ec = asio::error::would_block; - - // Start the asynchronous operation itself. The boost::lambda function - // object is used as a callback and will update the ec variable when the - // operation completes. The blocking_udp_client.cpp example shows how you - // can use boost::bind rather than boost::lambda. - asio::async_connect(socket_, endpoints, var(ec) = _1); - - // Block until the asynchronous operation has completed. - do io_context_.run_one(); while (ec == asio::error::would_block); - - // Determine whether a connection was successfully established. The - // deadline actor may have had a chance to run and close our socket, even - // though the connect operation notionally succeeded. Therefore we must - // check whether the socket is still open before deciding if we succeeded - // or failed. - if (ec || !socket_.is_open()) - throw asio::system_error( - ec ? ec : asio::error::operation_aborted); - } - - std::string read_line(boost::posix_time::time_duration timeout) - { - // Set a deadline for the asynchronous operation. Since this function uses - // a composed operation (async_read_until), the deadline applies to the - // entire operation, rather than individual reads from the socket. - deadline_.expires_from_now(timeout); - - // Set up the variable that receives the result of the asynchronous - // operation. The error code is set to would_block to signal that the - // operation is incomplete. Asio guarantees that its asynchronous - // operations will never fail with would_block, so any other value in - // ec indicates completion. - asio::error_code ec = asio::error::would_block; - - // Start the asynchronous operation itself. The boost::lambda function - // object is used as a callback and will update the ec variable when the - // operation completes. The blocking_udp_client.cpp example shows how you - // can use boost::bind rather than boost::lambda. - asio::async_read_until(socket_, input_buffer_, '\n', var(ec) = _1); - - // Block until the asynchronous operation has completed. - do io_context_.run_one(); while (ec == asio::error::would_block); - - if (ec) - throw asio::system_error(ec); - - std::string line; - std::istream is(&input_buffer_); - std::getline(is, line); - return line; - } - - void write_line(const std::string& line, - boost::posix_time::time_duration timeout) - { - std::string data = line + "\n"; - - // Set a deadline for the asynchronous operation. Since this function uses - // a composed operation (async_write), the deadline applies to the entire - // operation, rather than individual writes to the socket. - deadline_.expires_from_now(timeout); - - // Set up the variable that receives the result of the asynchronous - // operation. The error code is set to would_block to signal that the - // operation is incomplete. Asio guarantees that its asynchronous - // operations will never fail with would_block, so any other value in - // ec indicates completion. - asio::error_code ec = asio::error::would_block; - - // Start the asynchronous operation itself. The boost::lambda function - // object is used as a callback and will update the ec variable when the - // operation completes. The blocking_udp_client.cpp example shows how you - // can use boost::bind rather than boost::lambda. - asio::async_write(socket_, asio::buffer(data), var(ec) = _1); - - // Block until the asynchronous operation has completed. - do io_context_.run_one(); while (ec == asio::error::would_block); - - if (ec) - throw asio::system_error(ec); - } - -private: - void check_deadline() - { - // Check whether the deadline has passed. We compare the deadline against - // the current time since a new asynchronous operation may have moved the - // deadline before this actor had a chance to run. - if (deadline_.expires_at() <= deadline_timer::traits_type::now()) - { - // The deadline has passed. The socket is closed so that any outstanding - // asynchronous operations are cancelled. This allows the blocked - // connect(), read_line() or write_line() functions to return. - asio::error_code ignored_ec; - socket_.close(ignored_ec); - - // There is no longer an active deadline. The expiry is set to positive - // infinity so that the actor takes no action until a new deadline is set. - deadline_.expires_at(boost::posix_time::pos_infin); - } - - // Put the actor back to sleep. - deadline_.async_wait(bind(&client::check_deadline, this)); - } - - asio::io_context io_context_; - tcp::socket socket_; - deadline_timer deadline_; - asio::streambuf input_buffer_; -}; - -//---------------------------------------------------------------------- - -int main(int argc, char* argv[]) -{ - try - { - if (argc != 4) - { - std::cerr << "Usage: blocking_tcp \n"; - return 1; - } - - client c; - c.connect(argv[1], argv[2], boost::posix_time::seconds(10)); - - boost::posix_time::ptime time_sent = - boost::posix_time::microsec_clock::universal_time(); - - c.write_line(argv[3], boost::posix_time::seconds(10)); - - for (;;) - { - std::string line = c.read_line(boost::posix_time::seconds(10)); - - // Keep going until we get back the line that was sent. - if (line == argv[3]) - break; - } - - boost::posix_time::ptime time_received = - boost::posix_time::microsec_clock::universal_time(); - - std::cout << "Round trip time: "; - std::cout << (time_received - time_sent).total_microseconds(); - std::cout << " microseconds\n"; - } - catch (std::exception& e) - { - std::cerr << "Exception: " << e.what() << "\n"; - } - - return 0; -} -- cgit v1.2.3-70-g09d2