RE: nano hangs when pasting five characters

Hi Benno,

I am switching back to the email thread for this one, because it likely is of interest only, and would just be noise on the bug report thread.

I wrote a simple program to capture keystrokes and the time between each so that I could measure the time between characters for pastes.
Two graphs are attached for 93,298 paste buffers done with WIN32-OPenSSH and PuTTY.
Summary (which we kind of already know): Sometimes the WIN version has huge gaps in time on the 16 character boundaries, but PuTTY does not.

The huge delays are:
16	1	21562	37
80	5	23970	31
160	10	4702	31
176	11	4672	37
93296	5831	22429	38 <- the ASCII character
|	|	|__ time in uSec since the previous character got to the program
|	|__ buffer number = character number / 16 to be able to check if boundary (Yes)
|__ Character number in paste buffer

... Doug

-----Original Message-----
From: Benno Schulenberg <[email protected]> 
Sent: March 1, 2025 3:44 AM
To: Doug Smythies <[email protected]>; [email protected]
Subject: Re: nano hangs when pasting five characters


Hello Doug,

Op 01-03-2025 om 01:47 schreef Doug Smythies:
> +               if (input == ERR) {
> +                       napms(20);  /* check for sender slower than here */
> +                       input = wgetch(frame); /* check again */
> +                               if (input == ERR)
> +                                       break;
> +               }

> But it turns out that it works fine if the sleep is 29 mSec instead of 20.
> 28 mSec and below doesn't work. 29 mSec and above works.

Interesting.  The other modification (with the 2 ms delay for each byte)
resulted in a 32 ms delay for the entire paste minus the final tilde,
which is also just enough to see the tilde.


Anyway, I have re-reported this issue on Savannah [1] and have attached
a workaround.  Are you okay with its form?

[1] https://savannah.gnu.org/bugs/?66858


Benno