1 | #include <iostream>
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2 |
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3 | #include <boost/asio/io_service.hpp>
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4 | #include <boost/asio/steady_timer.hpp>
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5 | #include <boost/chrono.hpp>
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6 | #include <boost/thread.hpp>
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7 |
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8 | boost::asio::io_service io_service;
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9 | boost::asio::steady_timer timer(io_service);
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10 |
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11 | void arm_timer()
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12 | {
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13 | std::cout << ".";
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14 | std::cout.flush();
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15 | timer.expires_from_now(boost::chrono::seconds(3));
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16 | timer.async_wait(boost::bind(&arm_timer));
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17 | }
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18 |
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19 | int main()
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20 | {
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21 | // Add asynchronous work loop.
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22 | arm_timer();
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23 |
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24 | boost::thread poll_thread(
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25 | boost::bind(&boost::asio::io_service::poll, boost::ref(io_service)));
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26 |
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27 | // Give time for poll thread service reactor.
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28 | boost::this_thread::sleep_for(boost::chrono::seconds(1));
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29 |
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30 | io_service.run();
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31 | }
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