Re: Blocking child signals

[Sven Wischnowsky <wischnow@adler>]

Zoltan Hidvegi  wrote:

> 
> In exec.c and in jobs.c there are several child_block() and child_unblock()
> calls.  Tracing the system calls used by zsh it turns out that perhaps the
> majority of these are these child block/unblock calls.  I think that the
> performance of zsh could be improved a little bit by calling these blocking
> code more carefully.  Unfortunately this child blocking stuff is quite a
> mess.  I'm sure that there are some bugs hiding here (ie. the child signal
> may remain blocked sometimes for quite a long time or it may be unblocked
> when it should not be unblocked).
> 

Didn't Richard clean this up relatively recently?

> I think that zsh should not block child signals when it does not fork.  Is
> there anyone who knows the details of this child blocking staff in exec.c?
> Perhaps Sven would know that, but unfortunately it seems that he no longer
> works on zsh :-(. 

I didn't do much with the block/unblock code.

> Btw. does anyone know the current E-mail address of
> Sven?  I'd like to add it to the CONTRIBUTORS file.
> 

Yes, I know it... :-)

Bye
 Sven


--
Sven Wischnowsky                         wischnow@informatik.hu-berlin.de