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from __future__ import annotations
import sys
import threading
import pytest
from pybind11_tests import thread as m
class Thread(threading.Thread):
def __init__(self, fn):
super().__init__()
self.fn = fn
self.e = None
def run(self):
try:
for i in range(10):
self.fn(i, i)
except Exception as e:
self.e = e
def join(self):
super().join()
if self.e:
raise self.e
@pytest.mark.skipif(sys.platform.startswith("emscripten"), reason="Requires threads")
def test_implicit_conversion():
a = Thread(m.test)
b = Thread(m.test)
c = Thread(m.test)
for x in [a, b, c]:
x.start()
for x in [c, b, a]:
x.join()
@pytest.mark.skipif(sys.platform.startswith("emscripten"), reason="Requires threads")
def test_implicit_conversion_no_gil():
a = Thread(m.test_no_gil)
b = Thread(m.test_no_gil)
c = Thread(m.test_no_gil)
for x in [a, b, c]:
x.start()
for x in [c, b, a]:
x.join()
@pytest.mark.skipif(sys.platform.startswith("emscripten"), reason="Requires threads")
def test_bind_shared_instance():
nb_threads = 4
b = threading.Barrier(nb_threads)
def access_shared_instance():
b.wait()
for _ in range(1000):
m.EmptyStruct.SharedInstance # noqa: B018
threads = [
threading.Thread(target=access_shared_instance) for _ in range(nb_threads)
]
for thread in threads:
thread.start()
for thread in threads:
thread.join()
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