1 2 // Copyright Oliver Kowalke 2016. 3 // Distributed under the Boost Software License, Version 1.0. 4 // (See accompanying file LICENSE_1_0.txt or copy at 5 // http://www.boost.org/LICENSE_1_0.txt) 6 7 #include <cstdlib> 8 #include <iostream> 9 #include <tuple> 10 11 #include <boost/context/fiber.hpp> 12 13 namespace ctx = boost::context; 14 main()15int main() { 16 int data = 0; 17 ctx::fiber f{ [&data](ctx::fiber && f) { 18 std::cout << "f1: entered first time: " << data << std::endl; 19 data += 1; 20 f = std::move( f).resume(); 21 std::cout << "f1: entered second time: " << data << std::endl; 22 data += 1; 23 f = std::move( f).resume(); 24 std::cout << "f1: entered third time: " << data << std::endl; 25 return std::move( f); 26 }}; 27 f = std::move( f).resume(); 28 std::cout << "f1: returned first time: " << data << std::endl; 29 data += 1; 30 f = std::move( f).resume(); 31 std::cout << "f1: returned second time: " << data << std::endl; 32 data += 1; 33 f = std::move( f).resume_with([&data](ctx::fiber && f){ 34 std::cout << "f2: entered: " << data << std::endl; 35 data = -1; 36 return std::move( f); 37 }); 38 std::cout << "f1: returned third time" << std::endl; 39 std::cout << "main: done" << std::endl; 40 return EXIT_SUCCESS; 41 } 42