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b53e167a68
- buffered_channel: MPMC with lock-free guarantees - unbuffered_channel: rendezvous point
47 lines
1.2 KiB
C++
47 lines
1.2 KiB
C++
#include <cstdlib>
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#include <iostream>
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#include <stdexcept>
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#include <string>
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#include <boost/fiber/all.hpp>
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typedef boost::fibers::buffered_channel< std::string > channel_t;
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inline
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void foo( channel_t & chan1, channel_t & chan2, std::string const& msg)
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{
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boost::fibers::fiber::id id( boost::this_fiber::get_id() );
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chan1.push( msg);
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std::string value{ chan2.value_pop() };
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std::cout << "fiber " << id << ": " << value << " received" << std::endl;
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chan1.push( msg);
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value = chan2.value_pop();
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std::cout << "fiber " << id << ": " << value << " received" << std::endl;
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chan1.push( msg);
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value = chan2.value_pop();
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std::cout << "fiber " << id << ": " << value << " received" << std::endl;
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}
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int main()
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{
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try
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{
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channel_t chan1{ 2 }, chan2{ 2 };
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boost::fibers::fiber f1( & foo, std::ref( chan1), std::ref( chan2), std::string("ping") );
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boost::fibers::fiber f2( & foo, std::ref( chan2), std::ref( chan1), std::string("pong") );
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f1.join();
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f2.join();
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std::cout << "done." << std::endl;
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return EXIT_SUCCESS;
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}
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catch ( std::exception const& e)
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{ std::cerr << "exception: " << e.what() << std::endl; }
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catch (...)
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{ std::cerr << "unhandled exception" << std::endl; }
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return EXIT_FAILURE;
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}
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