Re: Asynchronous blocks for everything (was Re: [BUG] Unexpected result when evaluating python src block asynchronously [9.7-pre (release_9.6.17-1131-gc9ed03.dirty @ /home/yantar92/.emacs.d/straight/build/org/)])

[Jack Kamm]

Bruno Barbier <brubar.cs@gmail.com> writes:

> I'm not using it with official org backends (yet).  I'm using it with
> several custom backends that I'm working on.  One of the backend
> delegate the block executions to emacs subprocesses: so I have a kind of
> asynchronous executions for free for any language, including elisp
> itself.

For sessions, wouldn't running in a subprocess prevent the user from
directly interacting with the REPL outside of Org? If so, that's a
problem. Org-babel sessions need to play nicely with inferior Python,
inferior ESS, and other interactive comint modes.

> So, here we go.  You'll find attach a set of patchs.  It works for me with
> Emacsc 30.50 and 9.7-pre (from today).

I suggest to keep these patches on a public branch somewhere, see:
https://orgmode.org/worg/org-contribute.html#patches

  "When discussing important changes, it is sometimes not so useful to
  send long and/or numerous patches.
  
  In this case, you can maintain your changes on a public branch of a
  public clone of Org and send a link to the diff between your changes
  and the latest Org commit that sits in your clone."

I tried running your example on emacs29 using

  emacs -q -L  /path/to/org-mode/lisp my-async-tests.org

but it fails with the error below. Also "make" gives a bunch of
compilation warnings (which I've put at the bottom).

> +You need to load:
> +   #+begin_src elisp :results silent
> +   (load-file "my-async-tests.el")
> +   #+end_src

This raises the following error in *Org-Babel Error Output*

  void-variable
  (org-elib-async-process)
  [ Babel evaluation exited with code 127 ]

All the subsequent blocks don't work because of that, for example:

> +A simple execution:
> +    #+begin_src bash
> +      date
> +    #+end_src

yields:

  org-babel-execute-src-block: No org-babel-execute function for bash: 
my-shell-babel-schedule!

Finally here are the warnings when running "make":

Compiling single /home/jack/src/org-mode/2024-02-brubar-async/lisp/ob-core.el...

In org-babel--async-feedbacks:
ob-core.el:851:2: Warning: docstring has wrong usage of unescaped single quotes 
(use \= or different quoting)
ob-core.el:871:9: Warning: Unused lexical variable `result-indent'
ob-core.el:906:18: Warning: Unused lexical variable `header'

Compiling single 
/home/jack/src/org-mode/2024-02-brubar-async/lisp/org-elib-async.el...

In toplevel form:
org-elib-async.el:52:11: Warning: reference to free variable 
‘org-elib-async-process’
org-elib-async.el:52:43: Warning: reference to free variable ‘&key’
org-elib-async.el:52:48: Warning: reference to free variable ‘input’
org-elib-async.el:52:54: Warning: reference to free variable ‘callback’
org-elib-async.el:78:29: Warning: reference to free variable ‘command’
org-elib-async.el:127:9: Warning: Variable ‘last-elapsed’ left uninitialized

In org-elib-async-wait-condition:
org-elib-async.el:137:12: Warning: ‘signal’ called with 3 arguments, but 
accepts only 2

In end of data:
org-elib-async.el:262:16: Warning: the function ‘org-id-uuid’ is not known to 
be defined.
org-elib-async.el:52:35: Warning: the function ‘command’ is not known to be 
defined.
org-elib-async.el:52:2: Warning: the function ‘cl-defun’ might not be defined 
at runtime.