// // timer.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 #include #include #include void print(const asio::error_code& /*e*/, asio::deadline_timer* t, int* count) { if (*count < 5) { std::cout << *count << std::endl; ++(*count); t->expires_at(t->expires_at() + boost::posix_time::seconds(1)); t->async_wait(boost::bind(print, asio::placeholders::error, t, count)); } } int main() { asio::io_context io; int count = 0; asio::deadline_timer t(io, boost::posix_time::seconds(1)); t.async_wait(boost::bind(print, asio::placeholders::error, &t, &count)); io.run(); std::cout << "Final count is " << count << std::endl; return 0; }