time.sleep sleeps indefinitely

[dicej]

For example, when targeting the wasi:cli command world:

from hello import exports
from time import sleep

class Run(exports.Run):
    def run(self):
        print("Hello, world!")
        sleep(0.00001)

The above prints "Hello, world!" and then seems to sleep forever.

[dicej]

Actually, this seems non-deterministic, i.e. it sometimes blocks forever and sometimes not at all. Someone on MacOS reported that it either doesn't block at all or traps with an integer or floating point overflow error.

[dicej]

This is addressed by https://github.com/bytecodealliance/wasmtime/pull/6993

[dicej]

This was a bug in wasmtime-wasi and will be fixed in Wasmtime 13, to be released soon.