From: Victor Porton <porton@narod.ru>
Subject: Re: Execute an OS command and capture output
Date: Mon, 13 Nov 2017 21:22:39 +0200
Date: 2017-11-13T21:22:39+02:00 [thread overview]
Message-ID: <oucre6$j45$1@gioia.aioe.org> (raw)
In-Reply-To: oucqid$him$1@gioia.aioe.org
Victor Porton wrote:
> Dmitry A. Kazakov wrote:
>
>> On 2017-11-13 17:38, Victor Porton wrote:
>>> I need a (preferably portable, but only Linux would be well) way to
>>> execute an OS command with some input in stdin which I provide and
>>> capture the output from stdout.
>>
>> It is a vague question because there are numerous methods of how the
>> input, output and error pipes are handled. E.g. by 0, 1, 2 tasks.
>
> I need synchronous processing of input/output pipes. That is I need just
> provide a String variable for the input and receive a String value with
> the output after the command ends.
Hm, in a future version I may want to spawn asynchronously to reduce the
number of tasks.
> However, I will most probably need also to terminate the spawned command
> after a timeout (not allow it to run more than 20 secs, for example). But
> this "timeout" functionality may be added later.
>
>> Anyway see:
>>
>> 1. GNAT's System.OS_Lib.Spawn, System.OS_Lib.Non_Blocking_Spawn.
>>
>> 2. A more comfortable method would be to use GTK bindings (GLib
>> actually):
>>
>> http://www.dmitry-kazakov.de/ada/gtkada_contributions.htm#10
>>
--
Victor Porton - http://portonvictor.org
next prev parent reply other threads:[~2017-11-13 19:22 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-13 16:38 Execute an OS command and capture output Victor Porton
2017-11-13 16:41 ` Victor Porton
2017-11-13 17:41 ` Dmitry A. Kazakov
2017-11-13 18:52 ` Victor Porton
2017-11-13 20:06 ` Dmitry A. Kazakov
2017-11-13 20:16 ` Victor Porton
2017-11-13 20:34 ` Dmitry A. Kazakov
2017-11-13 21:09 ` Victor Porton
2017-11-14 9:36 ` Dmitry A. Kazakov
2017-11-13 19:07 ` Victor Porton
2017-11-13 19:22 ` Victor Porton [this message]
2017-11-13 20:17 ` Dmitry A. Kazakov
2017-11-14 10:57 ` A. Cervetti
2017-11-13 21:32 ` briot.emmanuel
2017-11-16 1:00 ` Randy Brukardt
replies disabled
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox