id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
4167	RFC: asio::io_service::async_stop() to handle signals	giecrilj@…	chris_kohlhoff	"== Problem statement ==
asio::io_service has no way of stopping from within a signal handler.  Sending a signal to a daemon is a common way to controlling its behavior (under POSIX).
Calling { io_service.stop(); } from a signal handler is not guaranteed to be safe.

== Implementation suggestion ==
Declare and implement a public interface with the following semantics:

void io_service::async_stop(void);
 /** 
 Sets an internal flag in io_service to stop at the nearest event loop.
 May be called from a signal handler. */

== Known workarounds ==
Let the io_service listen to a pipe.  Write to the pipe from within the signal handler.

== References ==
<URL:http://article.gmane.org/gmane.comp.lib.boost.user/58164>
"	Feature Requests	closed	Boost 1.43.0	asio	Boost 1.42.0	Problem	wontfix	signal, event loop