| 1 | // (C) Copyright 2012 Howard Hinnant |
|---|---|
| 2 | // (C) Copyright 2012 Vicente Botet |
| 3 | // |
| 4 | // Distributed under the Boost Software License, Version 1.0. (See accompanying |
| 5 | // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
| 6 | |
| 7 | // adapted from the example given by Howard Hinnant in |
| 8 | |
| 9 | #define BOOST_THREAD_VERSION 4 |
| 10 | |
| 11 | #include <iostream> |
| 12 | #include <boost/thread/scoped_thread.hpp> |
| 13 | #include <boost/thread/externally_locked_stream.hpp> |
| 14 | |
| 15 | void use_cerr(boost::externally_locked_stream<std::ostream> &mcerr) |
| 16 | { |
| 17 | using namespace boost; |
| 18 | chrono::steady_clock::time_point tf = chrono::steady_clock::now() + chrono::seconds(10); |
| 19 | while (chrono::steady_clock::now() < tf) |
| 20 | { |
| 21 | mcerr << "logging data to cerr\n"; |
| 22 | this_thread::sleep_for(d: chrono::milliseconds(500)); |
| 23 | } |
| 24 | } |
| 25 | |
| 26 | void use_cout(boost::externally_locked_stream<std::ostream> &mcout) |
| 27 | { |
| 28 | using namespace boost; |
| 29 | chrono::steady_clock::time_point tf = chrono::steady_clock::now() + chrono::seconds(5); |
| 30 | while (chrono::steady_clock::now() < tf) |
| 31 | { |
| 32 | mcout << "logging data to cout\n"; |
| 33 | this_thread::sleep_for(d: chrono::milliseconds(250)); |
| 34 | } |
| 35 | } |
| 36 | |
| 37 | int main() |
| 38 | { |
| 39 | using namespace boost; |
| 40 | |
| 41 | recursive_mutex terminal_mutex; |
| 42 | |
| 43 | externally_locked_stream<std::ostream> mcerr(std::cerr, terminal_mutex); |
| 44 | externally_locked_stream<std::ostream> mcout(std::cout, terminal_mutex); |
| 45 | externally_locked_stream<std::istream> mcin(std::cin, terminal_mutex); |
| 46 | |
| 47 | scoped_thread<> t1(boost::thread(use_cerr, boost::ref(t&: mcerr))); |
| 48 | scoped_thread<> t2(boost::thread(use_cout, boost::ref(t&: mcout))); |
| 49 | this_thread::sleep_for(d: chrono::seconds(2)); |
| 50 | std::string nm; |
| 51 | { |
| 52 | strict_lock<recursive_mutex> lk(terminal_mutex); |
| 53 | std::ostream & gcout = mcout.get(lk); |
| 54 | //std::istream & gcin = mcin.get(lk); |
| 55 | gcout << "Enter name: "; |
| 56 | //gcin >> nm; |
| 57 | } |
| 58 | t1.join(); |
| 59 | t2.join(); |
| 60 | mcout << nm << '\n'; |
| 61 | return 0; |
| 62 | } |
| 63 | |
| 64 |