id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
8533	signal garbage collection of slot objects	fmh6jj@…	Frank Mori Hess	Some people find the garbage collection scheme used by signals to destroy their disconnected slot surprising, in that slot objects inside the signal are not necessarily destroyed promptly upon their disconnection.  An alternative scheme would be to reference count the use of each slot object and destroy it when it is disconnected and no longer needed by any ongoing signal invocation.  Care would need to be taken to avoid a heavy performance impact (we probably wouldn't want to add an atomic reference count, but rather rely on the existing signal mutex for thread saftey).	Tasks	closed	Boost 1.59.0	signals2	Boost 1.55.0	Optimization	fixed