Barrier hangs indefinitely when arg parties < 0 or invalid type #121474
Description
Bug report
Bug description:
threading.Barrier at no point checks for valid parties. parties, of a negative value, or invalid type hang indefinitely on .wait(). This behavior is inconsistent from the behavior of any other threading primitives, which either conduct sanity checks on args during initialization, or fail at some point in their execution.
Steps to reproduce:
from threading import Barrier
# negative
barrier = Barrier(-1) # <threading.Barrier at 0x10aa789b0: waiters=0/-1>
barrier.wait()
# invalid type string
barrier = Barrier("test") # <threading.Barrier at 0x10ae64980: waiters=0/test>
barrier.wait()
# invalid type float
barrier = Barrier(0.5) # <threading.Barrier at 0x10aa7a570: waiters=0/0.5>
barrier.wait()
# invalid type object
barrier = Barrier(object()) # <threading.Barrier at 0x10ae4f500: waiters=0/<object object at 0x10a878730>>
barrier.wait()CPython versions tested on:
CPython main branch
Operating systems tested on:
macOS