mirror of
https://github.com/boostorg/fiber.git
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125 lines
2.9 KiB
C++
125 lines
2.9 KiB
C++
#include <cstdlib>
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#include <iostream>
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#include <string>
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#include <boost/bind.hpp>
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#include <boost/tasklet.hpp>
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int value1 = 0;
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int value2 = 0;
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int value3 = 0;
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void fn_1()
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{
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for ( int i = 0; i < 10; ++i)
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{
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++value1;
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std::cout << "fn_1() increment value1 " << value1 << std::endl;
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boost::this_tasklet::interruption_point();
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boost::this_tasklet::yield();
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}
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}
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void fn_2()
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{
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boost::this_tasklet::disable_interruption disabled;
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for ( int i = 0; i < 10; ++i)
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{
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++value2;
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std::cout << "fn_2() increment value2 " << value2 << std::endl;
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boost::this_tasklet::interruption_point();
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boost::this_tasklet::yield();
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}
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}
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void fn_3()
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{
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boost::this_tasklet::disable_interruption disabled;
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for ( int i = 0; i < 10; ++i)
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{
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++value3;
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std::cout << "fn_3() increment value3 " << value3 << std::endl;
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boost::this_tasklet::restore_interruption restored( disabled);
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boost::this_tasklet::interruption_point();
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boost::this_tasklet::yield();
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}
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}
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void fn_4( boost::tasklet f)
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{
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for ( int i = 0; i < 10; ++i)
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{
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if ( i == 1)
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{
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std::cout << "fn_4() interrupt tasklet " << f.get_id() << std::endl;
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f.interrupt();
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break;
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}
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boost::this_tasklet::yield();
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}
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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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boost::tasklets::scheduler<> sched;
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boost::tasklet f1( fn_1, boost::tasklet::default_stacksize, boost::protected_stack_allocator());
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sched.submit_tasklet( f1);
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sched.submit_tasklet(
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boost::tasklet(
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fn_4, f1, boost::tasklet::default_stacksize, boost::protected_stack_allocator()) );
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std::cout << "start: interrupt fn_1()" << std::endl;
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for (;;)
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{
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while ( sched.run() );
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if ( sched.empty() ) break;
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}
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std::cout << "finish: value1 == " << value1 << std::endl;
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boost::tasklet f2( fn_2, boost::tasklet::default_stacksize, boost::protected_stack_allocator());
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sched.submit_tasklet( f2);
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sched.submit_tasklet(
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boost::tasklet(
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fn_4, f2, boost::tasklet::default_stacksize, boost::protected_stack_allocator()) );
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std::cout << "start: interrupt fn_2()" << std::endl;
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for (;;)
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{
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while ( sched.run() );
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if ( sched.empty() ) break;
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}
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std::cout << "finish: value2 == " << value2 << std::endl;
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boost::tasklet f3( fn_3, boost::tasklet::default_stacksize, boost::protected_stack_allocator());
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sched.submit_tasklet( f3);
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sched.submit_tasklet(
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boost::tasklet(
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fn_4, f3, boost::tasklet::default_stacksize, boost::protected_stack_allocator()) );
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std::cout << "start: interrupt fn_3()" << std::endl;
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for (;;)
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{
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while ( sched.run() );
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if ( sched.empty() ) break;
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}
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std::cout << "finish: value3 == " << value3 << std::endl;
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return EXIT_SUCCESS;
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}
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catch ( boost::tasklets::scheduler_error const& e)
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{ std::cerr << "scheduler_error: " << e.what() << std::endl; }
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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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