[tarantool-patches] Re: [PATCH v2] core: Non-blocking io.popen

[Konstantin Osipov <kostja@tarantool.org>]

* Vladimir Davydov <vdavydov.dev@gmail.com> [19/05/31 16:01]:
> > +static struct popen_data *
> > +popen_lookup_data_by_pid(pid_t pid)
> > +{
> > +	struct popen_data *cur = popen_data_list;
> > +	for(; cur; cur = cur->next) {
> > +		if (cur->pid == pid)
> > +			return cur;
> > +	}
> 
> Please write a comment explaining why you think linear search is fine
> here and why we don't use some kind of hash or tree.

If it is a list of all popen processes, please avoid.
We can't afford adding a yet another, even unlikely, reason for a
100% hog. This makes support difficult - keeping them all one's
head and checking neither is triggered.

-- 
Konstantin Osipov, Moscow, Russia