Re: [Boost-users] aiso signal handling, daemon shutdown

Subject: Re: [Boost-users] aiso signal handling, daemon shutdown
From: Casimiro, Daniel C CIV NUWC NWPT (daniel.casimiro_at_[hidden])
Date: 2012-07-13 16:05:24

> Hello,
> 
> I try to create a working example for a daemon with
>
http://www.boost.org/doc/libs/1_50_0/doc/html/boost_asio/overview/signals.ht
ml
> 
> I have created a program like:
> 
> static bool run = true;
> 
> void handler( const boost::system::error_code& error, int signal_number) {
>     if (!error)
>     {
>         run = false;
>         std::cout << "signal" << std::endl;
>     }
> }
> 
> 
> and the main with
> 
> int main(..) {
>     boost::asio::io_service io_service;
>     boost::asio::signal_set signals(io_service, SIGINT, SIGTERM);
>     signals.async_wait(handler);
> 
>     while (run) { boost::this_thread::yield(); } }
> 
> 
> The program runs, but if I do "kill pid" the program does not stop or
shows the message.
> I would like to create a small daemon which runs some threads and can stop
with the normal stop signal and can reload the
> configuration on reload.
> 
> Can anyone help me to create a working example first !?
> Thanks a lot
> 

Your asynchronous handlers are not running because you forgot to call "
io_service.run()."

~Dan