61 lines
1.8 KiB
Python
61 lines
1.8 KiB
Python
# Copyright 2011 Justin Santa Barbara
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import os
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import shutil
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import tempfile
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import eventlet
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eventlet.monkey_patch()
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from eventlet import greenpool
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from oslotest import base as test_base
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from oslo.concurrency import lockutils
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class TestFileLocks(test_base.BaseTestCase):
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def test_concurrent_green_lock_succeeds(self):
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"""Verify spawn_n greenthreads with two locks run concurrently."""
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tmpdir = tempfile.mkdtemp()
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try:
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self.completed = False
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def locka(wait):
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a = lockutils.InterProcessLock(os.path.join(tmpdir, 'a'))
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with a:
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wait.wait()
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self.completed = True
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def lockb(wait):
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b = lockutils.InterProcessLock(os.path.join(tmpdir, 'b'))
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with b:
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wait.wait()
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wait1 = eventlet.event.Event()
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wait2 = eventlet.event.Event()
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pool = greenpool.GreenPool()
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pool.spawn_n(locka, wait1)
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pool.spawn_n(lockb, wait2)
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wait2.send()
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eventlet.sleep(0)
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wait1.send()
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pool.waitall()
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self.assertTrue(self.completed)
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finally:
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if os.path.exists(tmpdir):
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shutil.rmtree(tmpdir)
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