As I understand when you are blocked on I/O and sends a signal to the waiting thread, that system call will simply be released and return an error. Ruby (Java etc.) does make it simple because of GC, so I don't need to worry about file descriptor leaks etc. But talking about Rust, shouldn't it be a part of a thread management? Basically if an error happens during normal blocking system call, it goes through the same sequence, no? E.g. you have to release any thread-local allocations no matter by each way system call was terminated. Rust threads are supposed to be memory safe, not sure about file descriptors. I don't quite understand what you mean by "yielding" though.
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