On Tue, Mar 23, 2004 at 07:38:48PM +0000, Angus Leeming wrote: > Me too, if only because hacking into the Qt event loop turns out to be > a right PITA. > > Nonetheless, playing devil's advocate, why is Strategy 2 better than > the existing strategy of using a Timeout to reap the children also? > (Genuine question.)
Because zombies are a global resource user whereas an internal list of dead children is not. Our list doesn't sit in the process table. > > Well, if Qt had support for reaping children... > > You're the Qt guru here. If you tell me it doesn't then it doesn't ;-) AFAIK it doesn't. > > What routines need to know about children that have died? > > 'I'd rather say 'Completed' than 'Died'. 'Died' is so emotive ;-) Bah, it's a UNIX tradition! "So my child zombies died, but weren't reaped so I had to kill their parent." > The graphics loading code needs to know that an image file has been > converted to a loadable format so that it can begin the process of > loading the thing. A-ha! Don't we have a flashing cursor? Can't the callback do a quick check of a sigatomic_t somewhere and call into the sigprocmask-protected code? IOW we already have periodic code, we can do the poll cheaply, no? regards john -- "Spammers get STABBED by GOD." - Ron Echeverri
