{

using namespace boost;

chrono::steady_clock::time_point tf = chrono::steady_clock::now() + chrono::seconds(10);

while (chrono::steady_clock::now() < tf)

{

mcerr << "logging data to cerr\n";

this_thread::sleep_for(chrono::milliseconds(500));

}

{

using namespace boost;

chrono::steady_clock::time_point tf = chrono::steady_clock::now() + chrono::seconds(5);

while (chrono::steady_clock::now() < tf)

{

mcout << "logging data to cout\n";

this_thread::sleep_for(chrono::milliseconds(250));

}

{

using namespace boost;

recursive_mutex terminal_mutex;

externally_locked_stream<std::ostream> mcerr(std::cerr, terminal_mutex);

externally_locked_stream<std::ostream> mcout(std::cout, terminal_mutex);

externally_locked_stream<std::istream> mcin(std::cin, terminal_mutex);

scoped_thread<> t1(boost::thread(use_cerr, boost::ref(mcerr)));

scoped_thread<> t2(boost::thread(use_cout, boost::ref(mcout)));

this_thread::sleep_for(chrono::seconds(2));

std::string nm;

{

strict_lock<recursive_mutex> lk(terminal_mutex);

std::ostream & gcout = mcout.get(lk);

//std::istream & gcin = mcin.get(lk);

gcout << "Enter name: ";

//gcin >> nm;

}

t1.join();

t2.join();

mcout << nm << '\n';

return 0;