From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <zsh-workers-return-39274-mason-zsh=primenet.com.au@zsh.org>
Received: (qmail 529 invoked by alias); 11 Sep 2016 09:02:26 -0000
Mailing-List: contact zsh-workers-help@zsh.org; run by ezmlm
Precedence: bulk
X-No-Archive: yes
List-Id: Zsh Workers List <zsh-workers.zsh.org>
List-Post: <mailto:zsh-workers@zsh.org>
List-Help: <mailto:zsh-workers-help@zsh.org>
X-Seq: 39274
Received: (qmail 22749 invoked from network); 11 Sep 2016 09:02:26 -0000
X-Qmail-Scanner-Diagnostics: from mail-qt0-f179.google.com by f.primenet.com.au (envelope-from <sgniazdowski@gmail.com>, uid 7791) with qmail-scanner-2.11 
 (clamdscan: 0.99.2/21882. spamassassin: 3.4.1.  
 Clear:RC:0(209.85.216.179):SA:0(0.0/5.0):. 
 Processed in 0.156723 secs); 11 Sep 2016 09:02:26 -0000
X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on f.primenet.com.au
X-Spam-Level: 
X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,SPF_PASS,
	T_DKIM_INVALID autolearn=unavailable autolearn_force=no version=3.4.1
X-Envelope-From: sgniazdowski@gmail.com
X-Qmail-Scanner-Mime-Attachments: |
X-Qmail-Scanner-Zip-Files: |
Received-SPF: pass (ns1.primenet.com.au: SPF record at _netblocks.google.com designates 209.85.216.179 as permitted sender)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=gmail.com; s=20120113;
        h=mime-version:in-reply-to:references:from:date:message-id:subject:to;
        bh=iO0Bn4dXWEpQR2DMTDzpPTmSyOi3gqm0vPLh9Ynd6pA=;
        b=1H5xXPoH8i/RvwEeasXP8r67Eq+OlMDISdhmxHfotD3xE6g1fXi5ARLyIKF6ZJuDuu
         oY3TXTVn5ownx6udIXZ/JPqSYCC8YwC1ALyxiMzshxSJgQqUHV9A6vodRlUcPsx34QQ9
         a49/mFVXnAa4sALwLNDQcVcWBYPh7kjuycwiCBY90NJjU+mkVwdxx35u8FPus289zFVh
         mCXnJEc0QcmqFDCdCIK5ScJvi4hDzS8wrO+acUEpoKkrhjAKfNsty09/RpgiBGci0wnl
         s1nS26quv754kjpMPcsBNqTg7B5lmxhIYMPsOFUqSwcAOJGJdQ+kDQdptIYARuGgbnJ+
         MeHg==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=1e100.net; s=20130820;
        h=x-gm-message-state:mime-version:in-reply-to:references:from:date
         :message-id:subject:to;
        bh=iO0Bn4dXWEpQR2DMTDzpPTmSyOi3gqm0vPLh9Ynd6pA=;
        b=lKSEHVgBSU1HzCgpomIqYzjNuPvd65EpuCSOD4xaYfh6hJYw3tATFzTjFNkF461JLO
         GWRF11+Nei2twE/Uch7C42dhLRe1bwBaSls9TqinPp9AwDHjOoir0h8nS6xjhZHc8seW
         G20ne8Z/jYOtQdOKatcsuV0UrRUw5zX/0cCY8e1o9JcRw+Fz2y8zCVzdWC3Kb42Z6pxI
         J1hpRMJaFS7gKv9EBOxCJk7kBK+tgiRLUk7taPkCZ8BFGqthEOor30kYqL1EUdEMz+IX
         j4z5p1mMusZomSDKNIRxLljqyrrJh3KZQ0Gsj8JQkKn6flh4UOTwGBwgBr323GfS+UuM
         6t0g==
X-Gm-Message-State: AE9vXwPybLlILR3EuuqXUQak554uoffA4C51qRRTuqkYWM6mW/QK1AtrIJmwV4JctehCPt3rSlOAYwsXnWKJow==
X-Received: by 10.237.51.101 with SMTP id u92mr13627824qtd.2.1473584532020;
 Sun, 11 Sep 2016 02:02:12 -0700 (PDT)
MIME-Version: 1.0
In-Reply-To: <CAKc7PVDNXK2jnDxVXLUvLeqM7zgsU+ssZ-wfboXxNqyOynrmeQ@mail.gmail.com>
References: <CAKc7PVDNXK2jnDxVXLUvLeqM7zgsU+ssZ-wfboXxNqyOynrmeQ@mail.gmail.com>
From: Sebastian Gniazdowski <sgniazdowski@gmail.com>
Date: Sun, 11 Sep 2016 11:01:51 +0200
Message-ID: <CAKc7PVCMC0O1vg+=bhbFmHDYGCRFmdb4837AbbHmN=zJ7fDBmw@mail.gmail.com>
Subject: Re: fc -ap -R stalls when called from sched
To: Zsh hackers list <zsh-workers@zsh.org>
Content-Type: text/plain; charset=UTF-8

PS. Thought that I could provide a minimum test case. However, following:

myfunction() { local -a arr; fc -ap -R ~/.zshrc; arr=( ${history[@]}
); print -rl -- "Read:" "${(@)arr[1,3]}"; }
sched +1 myfunction

works fine...


On 11 September 2016 at 10:58, Sebastian Gniazdowski
<sgniazdowski@gmail.com> wrote:
> Hello,
> I call function __convey_on_period_passed() from sched +1 mechanism.
> There, I read an IO file (file used for data conveying). I use the
> neat trick that worked for me in past, but not now:
>
>     # Read input using history mechanism
>     local -a commands
>     () { fc -ap -R "$datafile"; commands=( ${history[@]} ) }
>
> Shell stalls for ~10 seconds, then continues with data correctly read.
> Whole source with debug marks is here:
>
> https://github.com/psprint/zconvey/blob/001a5378177dcfdd0de388e19f5c7ca067c0a89c/zconvey.plugin.zsh#L174-L183
>
> Asciinema showing the effect:
>
> https://asciinema.org/a/9mfxg2j1jcwvoo7tb5x6bagr4
>
> Removing anonymous function doesn't help. Doing normal load via
> commands=( "${(@f)"$(<$datafile)"}" ) does help.
>
>
> The plugin is for: a) assigning IDs and names to Zsh sessions b) doing
> "zconvey -n Devel vim ~/.zshrc" to fire up command on Zsh session
> named "Devel" (not implemented yet, thus a manual print -rl -- is used
> to fill IO file).
>
> Best regards,
> Sebastian Gniazdowski