From: Bart Schaefer <schaefer@brasslantern.com>
To: zsh-users@sunsite.dk
Subject: Re: coloring STDERR to terminal
Date: Fri, 2 Jul 2004 14:32:28 -0700 (PDT) [thread overview]
Message-ID: <Pine.LNX.4.60.0407021424230.22788@toltec.zanshin.com> (raw)
In-Reply-To: <20040702124259.GS2033@ay.vinc17.org>
On Fri, 2 Jul 2004, Vincent Lefevre wrote:
> Now, in precmd(), adding the following line solves the problem:
>
> sleep 0
>
> Of course, this won't completely avoid the race condition, but it
> improves things in pratice. I assume that this forces the scheduler
> to switch to another process, and in practice, the coprocess is
> scheduled before precmd() is resumed.
As sleep is an external command rather than a builtin (cf. zselect), this
forces zsh to perform a wait() system call [more or less], which in turn
forces the scheduler to let the sleep run to completion before zsh wakes
up again. That it's specifically "sleep 0" is probably irrelevant; any
external command is likely to have the same effect.
next prev parent reply other threads:[~2004-07-02 21:33 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-06-27 23:22 Atom 'Smasher'
2004-06-28 0:06 ` ari
2004-06-28 0:36 ` Atom 'Smasher'
2004-06-29 15:43 ` Bart Schaefer
2004-06-29 16:08 ` Vincent Lefevre
2004-06-29 17:14 ` Bart Schaefer
2004-06-30 7:09 ` Vincent Lefevre
2004-06-30 10:52 ` Bart Schaefer
2004-06-30 11:43 ` Vincent Lefevre
2004-06-30 12:01 ` Vincent Lefevre
2004-06-30 16:56 ` Bart Schaefer
2004-07-01 18:14 ` Vincent Lefevre
2004-07-02 0:11 ` Bart Schaefer
2004-07-02 12:42 ` Vincent Lefevre
2004-07-02 21:32 ` Bart Schaefer [this message]
2004-07-20 9:10 ` Atom 'Smasher'
2004-07-20 16:10 ` Bart Schaefer
2004-07-20 19:27 ` Atom 'Smasher'
2004-07-20 21:15 ` Bart Schaefer
2004-07-20 23:30 ` Wayne Davison
2004-07-21 3:15 ` Bart Schaefer
2004-07-21 6:23 ` Wayne Davison
2004-07-21 7:30 ` Bart Schaefer
2004-07-21 13:19 ` Vincent Lefevre
2004-07-30 11:50 ` Andy Spiegl
2004-07-30 23:44 ` Vincent Lefevre
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