Re: [Notion-devel] Number of processes created by notion when launching external applications

[Matthieu M. <Mat...@gr...>]

Juri Hamburg <ju...@fa...> writes:

>> I've just noticed that when pressing F2 to launch a terminal, notion
>> creates 3 processes
>> 1) sh
>> 2) xterm
>> 3) zsh (my default shell)
[...]
> Curious, byt I can't confirm an additional sh process while starting
> an application over F3 without ion-runxterm (:).

I don't find it curious at all.

If you run "firefox http://example.com", then someone has to do the
word-splitting and tell that the executable "firefox" should be launched
with the argument "http://example.com".

If you run "foobar > some-file", then someone has to do the redirection
on "some-file"

If you run "foo; bar", then someone has to run foo and bar in sequence.

All these features and done by a shell. Ion could optimize the simple
cases by running execvp() directly when there are no special character
in the command (space, pipe, semicolon, ...), but for a very little
gain.

-- 
Matthieu Moy
http://www-verimag.imag.fr/~moy/