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Wed, 15 Mar 2023 14:48:08 -0700 (PDT) In-Reply-To: X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.bugs:257990 Archived-At: On Wed, Mar 15, 2023 at 9:43=E2=80=AFPM Stefan Monnier wrote: > IOW, most process filters need to do something like > > (lambda (proc string) > (let* ((buffer (process-get proc 'my-buffer)) > (new (concat buffer string))) > (if (not (had-enough-p new)) > (process-put proc 'my-buffer new) > (process-put proc 'my-buffer nil) > (do-the-actual-processing new)))) > > Another issue for Tramp is that basically all of the API it has to > implement (for `file-name-handler-alist`) is synchronous, so that forces > it to resort to `accept-p-o` :-( SLY, jsonrpc.el, and other code is synchronous as well (the completion API is synch, as you well know). `accept-p-o` + a filter that invokes a closure that throws out of the loop is a great way to do this. See jsonrpc-request, for example. No JUST-THIS-ONE, and has been working fine in many forms since Emacs 24.3 AFAIK. > If we want Tramp to work better, we'll need to provide asynchronous > versions of most of those operations (presumably using some kind of > promise/future abstraction). We could start with using a filter, just like the one you described above Tramp doesn't use a filter, and I think that's part of the problem. Jo=C3=A3o