this post was submitted on 04 Jul 2025
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Programming
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This would infuriate me to no end. It's literally the definition of a data race. All data between threads needs to either be accessed through synchronization primitives (mutexes, atomic access, etc) or needs to be immutable. For the most part, this should include fds, though concurrent writes to stderr might be less of an issue (still a good idea to lock/buffer it and stdout though to avoid garbled output).
It's been so long since I've had to worry about this type of race condition, and like you...it infuriates me reading that comment.
Exactly.