A way to read standard input in the background without file/read in a thread.

[amano-kenji]

Right now, stdin is a file. I have to use file/read in a thread.

I can't kill the program with (os/exit 1) which is blocked by file/read.

[llmII]

I don't think Janet has a way at the moment, but I seem to recall one can close all the std* files, then reopen them by file descriptors. If there was a way to operate */open on file descriptors (integers) for I think FD 0, 1, and 2 - that would solve the issue. If what was opened was returned as a stream instead of a file (like how os/open does) then it'd be async-able.

[bakpakin]

Building on this, I have recently pushed code that extends os/exit with a force parameter which allows calling _exit instead of exit. This circumvents the issue where exit needs to flush the standard streams before completing, which in some cases may fail. Unfortunately, this seems to be required by the C standard as detailed here - https://en.cppreference.com/w/c/program/exit ("all C streams are flushed and closed") The async streams though may be the better solutions.

[amano-kenji]

Is it difficult to implement stdin as core/stream?

[amano-kenji]

(os/exit 1 true) can be a way to solve this issue, too.