ChallengeSpot the bug in the stream

time to read 1 min | 32 words

Consider the following code:

This is meant to add timeout support for a stream.

There is a subtle bug in the code, can you spot it? What would be the implications here?

More posts in "Challenge" series:

  1. (03 Jan 2020) Spot the bug in the stream–answer
  2. (15 Feb 2010) Where is the optimization?