On Wed, 01 Feb 2012 03:06:01 +0000 (GMT) Jeong-Hyun Yun
<[email protected]> said:

> Dear All.
> 
> I removed potential risk in ecore_ipc_shutdown.
> 
> If servers can't eina_list removed in ecore_ipc_server_del(), 
> for example, delete_me is true or event_count  == 0 or etc.,
> then the while loop will be infinite.
> 
> I modified EINA_LIST_FOREACH instead of while loop.
> 
> Please review this patch.

this is dangerous. very. take a look at this line in ecore_ipc_server_del():

        servers = eina_list_remove(servers, svr);

so what happens when as you walk a list.. you remove the exact item you are
walking... then you try use the list node ->next member.. that you just
freed? :)

this is not a fix. it's asking for segv's.

you issue is this:

   if (svr->event_count == 0)


ie it wont remove until events have been spooled out from the server. this wont
happen until the mainloop goes and runs again, so you have a problem. what i'd
do is have a routine before u server_del that finds all events for that server
and deletes them. :) the problem is that there isn't a list of these per
server. all the events point back to this server so u basically have a
referencing issue. if a ref that wont be removed until mainlooop flushes the
events. you want to look over there.

-- 
------------- Codito, ergo sum - "I code, therefore I am" --------------
The Rasterman (Carsten Haitzler)    [email protected]


------------------------------------------------------------------------------
Keep Your Developer Skills Current with LearnDevNow!
The most comprehensive online learning library for Microsoft developers
is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3,
Metro Style Apps, more. Free future releases when you subscribe now!
http://p.sf.net/sfu/learndevnow-d2d
_______________________________________________
enlightenment-devel mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/enlightenment-devel

Reply via email to