Time out a readline operation?

[HighCommander4]

Is there a way to time out an Editor::readline() operation? That is, make it so that if the user doesn't enter anything within a time limit (say, 5 minutes), have readline() return with an error of some sort?

[gwenn]

No.

[HighCommander4]

How difficult would it be to add this?

Or is there a way I could emulate it, by spinning up a second thread and running a timer on it, or something like that?

[gwenn]

You need to fix these calls:

• https://github.com/kkawakam/rustyline/blob/master/src/tty/windows.rs#L118 on Windows
• https://github.com/kkawakam/rustyline/blob/master/src/tty/unix.rs#L337 on Unix.
  On unix, when a single ESC is expected, we use poll:
  https://github.com/kkawakam/rustyline/blob/master/src/tty/unix.rs#L347
  So you can do the same at line 377 with another/custom timeout.
  And return KeyPress::Ctrl('C') for example.

[gwenn]

On unix, you can also use VTIME.
And it seems linefeed already supports what you want.

[HighCommander4]

And it seems linefeed already supports what you want.

Thank you for the suggestion! This works well enough for me for now.

[Ralith]

See also #126, which subsumes this.