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From: pjb@informatimago.com (Pascal J. Bourguignon)
To: help-gnu-emacs@gnu.org
Subject: Re: Asynchronous Process Handling
Date: Fri, 26 Jun 2009 15:48:30 +0200	[thread overview]
Message-ID: <7cbpobkswh.fsf@pbourguignon.anevia.com> (raw)
In-Reply-To: c95b9606-f84b-4f14-ba03-3fa11025e1c6@g6g2000vbr.googlegroups.com

Nordlöw <per.nordlow@gmail.com> writes:

> Is it possible to call a process asynchronously from with emacs and
> later get back an async message or notification when the process has
> finished possibly along with its return value and or output?

Yes.    You can do it with processes and process filters.  I let you
read the documentation about them.



Here is another solution, which has the advantage for long processes,
to work even if you relaunch emacs.

Put:

    (defun process-my-result (result)
       (switch-to-buffer "*result*")
       (insert (format "%S" result)))

    (server-start)

in ~/.emacs

and launch the process as:
 
    (shell-command "( sleep 10 ; result=42 ; emacsclient --eval \"(process-my-result $result)\" ) & disown &"
                   nil nil)


-- 
__Pascal Bourguignon__


      reply	other threads:[~2009-06-26 13:48 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-06-26 13:15 Asynchronous Process Handling Nordlöw
2009-06-26 13:48 ` Pascal J. Bourguignon [this message]

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