From: "Zhu Zihao" <all_but_last@163.com>
To: "Stefan Monnier" <monnier@iro.umontreal.ca>
Cc: Philipp Stephani <p.stephani2@gmail.com>,
Akira Kyle <ak@akirakyle.com>,
Emacs developers <emacs-devel@gnu.org>
Subject: Re:Re: "Asynchronous Requests from Emacs Dynamic Modules"
Date: Fri, 20 Nov 2020 23:54:48 +0800 (CST) [thread overview]
Message-ID: <47fe3996.8d32.175e65d7ede.Coremail.all_but_last@163.com> (raw)
In-Reply-To: <jwv361u8svy.fsf-monnier+emacs@gnu.org>
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Ok, But how to do this in Emacs version 25-27?
Emacs doesn't support named pipe access, but may be we can use `make-network-process` to open a TCP socket. Like this?
```
(let ((proc (make-network-process :name "fake-proxy-process"
:server t
:host 'local
:filter <filter-to-execute-callback>
:noquery t
;; Detect port automatically
:service t)))
(setq <global-proc-var> proc)
(module-function-initialize-notify (process-contact proc :service)))
```
But this maybe too strange for user to understand why a dynamic module require a TCP port access...
At 2020-10-31 20:49:21, "Stefan Monnier" <monnier@iro.umontreal.ca> wrote:
>> With Emacs 28, you can get a file descriptor to a pipe process and
>> send arbitrary data there (from arbitrary threads).
>
>Cool, so that takes care of it.
>
>> You'd still need some small protocol (e.g. JSON) to encode/decode
>> requests, but with that you can send arbitrary requests
>> back asynchronously.
>
>I don't think you need a complex protocol: just stash somewhere (inside
>the module data structures) the data you need for the async request,
>then send a dummy byte to the pipe. On the Lisp side, just install
>a process-filter which calls back the module to "run any pending async
>requests".
>
>
> Stefan
>
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next prev parent reply other threads:[~2020-11-20 15:54 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-30 21:35 "Asynchronous Requests from Emacs Dynamic Modules" Akira Kyle
2020-10-30 22:39 ` Stefan Monnier
2020-10-31 3:18 ` Zhu Zihao
2020-10-31 7:45 ` Eli Zaretskii
2020-10-31 8:02 ` yyoncho
2020-10-31 9:13 ` Eli Zaretskii
2020-10-31 9:45 ` yyoncho
2020-10-31 10:43 ` Eli Zaretskii
2020-10-31 19:25 ` Akira Kyle
2020-10-31 20:18 ` Eli Zaretskii
2020-11-01 0:14 ` Akira Kyle
2020-11-01 18:28 ` Eli Zaretskii
2020-11-01 20:15 ` Akira Kyle
2020-11-01 20:51 ` async-await (was: Re: "Asynchronous Requests from Emacs Dynamic Modules") Philipp Stephani
2020-11-02 15:22 ` "Asynchronous Requests from Emacs Dynamic Modules" Eli Zaretskii
2020-10-31 7:36 ` Philipp Stephani
2020-10-31 12:49 ` Stefan Monnier
2020-11-01 20:18 ` Akira Kyle
2020-11-01 20:32 ` Philipp Stephani
2020-11-20 15:54 ` Zhu Zihao [this message]
2020-11-20 16:04 ` Robert Pluim
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