Devel::Events::Filter::Stamp - Add time/context stamping to events

	use Devel::Events::Filter::Stamp;

	my $filter = Devel::Events::Filter::Stamp->new(
		handler => $handler,
	);

	Generator::Blah->new( handler => $filter );

This event filter will add timing and context information to the event.

The parameters are prepended so that upon hash assignment the event generator will get precedence.

filter_event @event

Prepends the output of stamp_data to @event

stamp_data

Returns the new fields, as detailed in STAMP DATA

time

A fractional timestamp, from Time::HiRes.

Suitable for passing to DateTime unaltered. Other modules may require application of int.

pid

The value of $$

thread_id

Only included if threads are in use.

The current thread ID.