Asynchronous Process Handling

Asynchronous Process Handling

[Nordlöw]

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?

Thanks in advance,
Per Nordlöw

Re: Asynchronous Process Handling

[Pascal J. Bourguignon]

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__