From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Shane Mulligan Newsgroups: gmane.emacs.bugs Subject: bug#48500: 28.0.50; url-retrieve-synchronously exits abnormally due to pending keyboard input from terminal Date: Fri, 21 May 2021 11:35:27 +1200 Message-ID: References: <87pmxo4kiu.wl-mullikine@gmail.com> <8335ukrsj3.fsf@gnu.org> <83sg2kq8yc.fsf@gnu.org> <835yzfq6lm.fsf@gnu.org> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="0000000000009ae84405c2cb6681" Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="39831"; mail-complaints-to="usenet@ciao.gmane.io" To: Eli Zaretskii , 48500@debbugs.gnu.org Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Fri May 21 01:36:11 2021 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1ljsD5-000A8U-8n for geb-bug-gnu-emacs@m.gmane-mx.org; 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boundary="0000000000009ae84205c2cb667f" --0000000000009ae84205c2cb667f Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Hey Eli, A small update. I found that when I used internet from a slower connection, the hang returned, so I have a more robust workaround now. I simply abort the function if there is a hang. ``` 13c13,14 < (let ((retrieval-done nil) --- > (let ((inhibit-quit t) > (retrieval-done nil) 17c18,19 < (timed-out nil)) --- > (timed-out nil) > (abort-hang nil)) 29c31,32 < (let ((proc (get-buffer-process asynch-buffer))) --- > (let ((proc (get-buffer-process asynch-buffer)) > (counter 0)) 38a42 > (not abort-hang) 72,74c76,87 < (unless (or (with-local-quit < (accept-process-output proc 1)) < (null proc)) --- > (if (input-pending-p) > (progn > (setq counter (1+ counter)) > (if (> counter 20) > (setq abort-hang t)))) > ;; accept-process-output hangs without while-no-input; input has > ;; nowhere to go. So avoid it. > (unless (or > (while-no-input > (with-local-quit > (accept-process-output proc 0.1))) > (null proc)) ``` Shane Mulligan How to contact me: =F0=9F=87=A6=F0=9F=87=BA 00 61 421 641 250 =F0=9F=87=B3=F0=9F=87=BF 00 64 21 1462 759 <+64-21-1462-759> mullikine@gmail.com 13c13,14 < (let ((retrieval-done nil) --- > (let ((inhibit-quit t) > (retrieval-done nil) 17c18,19 < (timed-out nil)) --- > (timed-out nil) > (abort-hang nil)) 29c31,32 < (let ((proc (get-buffer-process asynch-buffer))) --- > (let ((proc (get-buffer-process asynch-buffer)) > (counter 0)) 38a42 > (not abort-hang) 72,74c76,87 < (unless (or (with-local-quit < (accept-process-output proc 1)) < (null proc)) --- > (if (input-pending-p) > (progn > (setq counter (1+ counter)) > (if (> counter 20) > (setq abort-hang t)))) > ;; accept-process-output hangs without while-no-input; input has > ;; nowhere to go. So avoid it. > (unless (or > (while-no-input > (with-local-quit > (accept-process-output proc 0.1))) > (null proc)) On Thu, May 20, 2021 at 1:12 AM Shane Mulligan wrote: > I will do some further studies to see if I can find exactly how quit is > being generated. > > Shane Mulligan > > How to contact me: > =F0=9F=87=A6=F0=9F=87=BA 00 61 421 641 250 > =F0=9F=87=B3=F0=9F=87=BF 00 64 21 1462 759 <+64-21-1462-759> > mullikine@gmail.com > > > On Wed, May 19, 2021 at 11:57 PM Eli Zaretskii wrote: > >> > From: Shane Mulligan >> > Date: Wed, 19 May 2021 18:48:09 +1200 >> > >> > I may have resolved this issue with the following patch to >> `url-retrieve-synchronously`. >> > What this achieves is to trigger a `quit` in a controlled environment >> rather than allowing it to occur when >> > `accept-process-output` is run. >> > It's not always wanted to trigger a quit when `(input-pending-p)` is >> `t`. But I noticed from placing >> > `while-no-input` around `accept-process-output` to avoid the `quit` >> that `url-retrieve-synchronously` would >> > then hang but with the controlled `quit` happening beforehand, >> `accept-process-output` no longer needs >> > `while-no-input` around it. The end result is buttery smooth helm with >> no accidental `quit` from typing too >> > fast. I think this may have resulted in GUI helm faster too. >> >> Thanks, but what causes a quit in the first place? >> > --0000000000009ae84205c2cb667f Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Hey Eli,

A small update.
I fo= und that when I used internet from a slower connection, the hang returned, = so I have a more robust workaround now. I simply abort the function=C2=A0if= there is a hang.

```
13c13,14
< = =C2=A0 (let ((retrieval-done nil)
---
> =C2=A0 (let ((inhibit-quit= t)
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 (retrieval-done nil)
17c18,19< =C2=A0 =C2=A0 =C2=A0 =C2=A0 (timed-out nil))
---
> =C2=A0 = =C2=A0 =C2=A0 =C2=A0 (timed-out nil)
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 (a= bort-hang nil))
29c31,32
< =C2=A0 =C2=A0 =C2=A0 (let ((proc (get-b= uffer-process asynch-buffer)))
---
> =C2=A0 =C2=A0 =C2=A0 (let ((p= roc (get-buffer-process asynch-buffer))
> =C2=A0 =C2=A0 =C2=A0 =C2=A0= =C2=A0 =C2=A0 (counter 0))
38a42
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 (not abort-hang)
72,74c76,87< =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 (unless (or (with-local-qu= it
< =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 (accept-process-output proc 1))
< =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 (null proc))
---
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 (= if (input-pending-p)
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 (progn
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 (setq counter (1+ counter))
> =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 (if (> counter 20)
> =C2=A0= =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 (set= q abort-hang t))))
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 ;; acc= ept-process-output hangs without while-no-input; input has
> =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 ;; nowhere to go. So avoid it.
> = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 (unless (or
> =C2=A0 =C2=A0= =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0(while-no-in= put
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0(with-local-quit
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0(accept-proce= ss-output proc 0.1)))
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0(null proc))
```
Shane Mulligan

How to contact me:<= /div>
3D""
=F0=9F=87=A6=F0=9F=87=BA00 61 421 641 250
=F0= =9F=87=B3=F0=9F=87=BF0= 0 64 21 1462 759
mullikine@gmail.com=

13c13,14
< =C2=A0 (let ((re= trieval-done nil)
---
> =C2=A0 (let ((inhibit-quit t)
> =C2= =A0 =C2=A0 =C2=A0 =C2=A0 (retrieval-done nil)
17c18,19
< =C2=A0 = =C2=A0 =C2=A0 =C2=A0 (timed-out nil))
---
> =C2=A0 =C2=A0 =C2=A0 = =C2=A0 (timed-out nil)
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 (abort-hang nil)= )
29c31,32
< =C2=A0 =C2=A0 =C2=A0 (let ((proc (get-buffer-process = asynch-buffer)))
---
> =C2=A0 =C2=A0 =C2=A0 (let ((proc (get-buffe= r-process asynch-buffer))
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0= (counter 0))
38a42
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 (not abort-hang)
72,74c76,87
< =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 (unless (or (with-local-quit
< =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 (accept-process-output proc 1))
< =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 (null proc))=
---
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 (if (input-pendin= g-p)
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 (progn=
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 (se= tq counter (1+ counter))
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 (if (> counter 20)
> =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 (setq abort-hang t))))=
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 ;; accept-process-output= hangs without while-no-input; input has
> =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 ;; nowhere to go. So avoid it.
> =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 (unless (or
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0(while-no-input
> =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0(with-local-quit
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0(accept-process-output proc= 0.1)))
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0(null proc))

On Thu, May 20, 2021 at 1:12 AM Shan= e Mulligan <mullikine@gmail.com> wrote:
I will do some further studies to see if I can find exactly = how quit is being generated.

Shane Mulligan

How to contact me:
3D""
=F0=9F=87=A6=F0=9F=87=BA00 61 421 641 250
=F0=9F=87=B3=F0=9F=87=BF00 64 21 1462 759
mullikine@gmail= .com



On Wed, May 19, 2021 at 11:57= PM Eli Zaretskii <eli= z@gnu.org> wrote:
> From: Shane Mulligan <mullikine@gmail.com>
> Date: Wed, 19 May 2021 18:48:09 +1200
>
> I may have resolved this issue with the following patch to `url-retrie= ve-synchronously`.
> What this achieves is to trigger a `quit` in a controlled environment = rather than allowing it to occur when
> `accept-process-output` is run.
> It's not always wanted to trigger a quit when `(input-pending-p)` = is `t`. But I noticed from placing
> `while-no-input` around `accept-process-output` to avoid the `quit` th= at `url-retrieve-synchronously` would
> then hang but with the controlled `quit` happening beforehand, `accept= -process-output` no longer needs
> `while-no-input` around it. The end result is buttery smooth helm with= no accidental `quit` from typing too
> fast. I think this may have resulted in GUI helm faster too.

Thanks, but what causes a quit in the first place?
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