def test_limited_size(execmodel):
pool = WorkerPool(execmodel, size=1)
q = execmodel.queue.Queue()
q2 = execmodel.queue.Queue()
q3 = execmodel.queue.Queue()
def first():
q.put(1)
q2.get()
pool.spawn(first)
assert q.get() == 1
def second():
q3.put(3)
# we spawn a second pool to spawn the second function
# which should block
pool2 = WorkerPool(execmodel)
pool2.spawn(pool.spawn, second)
assert not pool2.waitall(1.0)
assert q3.qsize() == 0
q2.put(2)
assert pool2.waitall()
assert pool.waitall()
def test_primary_thread_integration_shutdown(execmodel):
if execmodel.backend != "thread":
pytest.skip("can only run with threading")
pool = WorkerPool(execmodel=execmodel, hasprimary=True)
queue = execmodel.queue.Queue()
def do_integrate():
queue.put(execmodel.get_ident())
pool.integrate_as_primary_thread()
execmodel.start(do_integrate)
queue.get()
queue2 = execmodel.queue.Queue()
def get_two():
queue.put(execmodel.get_ident())
queue2.get()
reply = pool.spawn(get_two)
# make sure get_two is running and blocked on queue2
queue.get()
# then shut down
pool.trigger_shutdown()
# and let get_two finish
queue2.put(1)
reply.get()
assert pool.waitall(5.0)