From: "Luca (Email)" <luca.pagano@...>
Date: 2011-12-29T15:44:34+09:00
Subject: I: embedded ruby event hooks



-----Messaggio originale-----
Da: Ryan Davis [mailto:ryand-ruby@zenspider.com] 
Inviato: venerd́ 2 dicembre 2011 04:29
A: ruby-talk ML
Oggetto: Re: embedded ruby event hooks


On Dec 1, 2011, at 18:55 , Steve Hart wrote:

> We have been running ruby for about 7 years as an embedded interpreter 
> and we are trying to upgrade from 1.8.7 to 1.9.3. One of the things we 
> do is to add an event hook using rb_add_event_hook for event type 
> RUBY_EVENT_CALL This allows us to 'know' what ruby method is being 
> called.
> In our function for the hook proc we use the passed in ID value to 
> tell us the name of the ruby method that is about to run. This works 
> well in 1.8.7.
> 
> In 1.9.3 the id passed in is always 0. Looking thru the code I can see 
> that this is marked in insns.def as 'TODO' (insns.def line 875 - 
> EXEC_EVENT_HOOK(th, flag, GET_SELF(), 0, 0 /* TODO: id, klass */); I'm 
> not sure yet what insns.def is or how it works - but without the 
> method id our code dies.

Chase the code down to the handler and you'll see that they look up the
class and id whenever it is 0.

 
 
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