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Re: Asynchronous Process Handling


From: Pascal J. Bourguignon
Subject: Re: Asynchronous Process Handling
Date: Fri, 26 Jun 2009 15:48:30 +0200
User-agent: Gnus/5.101 (Gnus v5.10.10) Emacs/22.2 (gnu/linux)

Nordlöw <address@hidden> 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__


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