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Avoid leaving stdin in nonblocking mode after a modern prompt

Authored by epriestley on May 30 2021, 8:31 AM.



Ref T13649. Currently, "arc" may leave stdin nonblocking after showing a prompt. This can cause various odd behaviors down the line.

I can't immediately reproduce this behavior on macOS in "zsh" or "bash" (I'm unable to get stdin to remain nonblocking beyond the process lifespan), and also don't have pcntl locally so there's a fair amount of handwaving here.

Test Plan

This is somewhat speculative since I can't immediately reproduce the behavior. I tested the locally-reachable paths (no pcntl) but they're not interesting.

Diff Detail

rARC Arcanist
Lint Not Applicable
Tests Not Applicable

Event Timeline

This revision was not accepted when it landed; it landed in state Needs Review.May 30 2021, 8:31 AM
epriestley requested review of this revision.
This revision was automatically updated to reflect the committed changes.