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138 lines
4.2 KiB
138 lines
4.2 KiB
# Copyright (c) 2019 PaddlePaddle Authors. All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import os
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import sys
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import signal
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import unittest
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import multiprocessing
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import time
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import paddle.compat as cpt
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from paddle.fluid import core
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def set_child_signal_handler(self, child_pid):
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core._set_process_pids(id(self), tuple([child_pid]))
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current_handler = signal.getsignal(signal.SIGCHLD)
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if not callable(current_handler):
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current_handler = None
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def __handler__(signum, frame):
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core._throw_error_if_process_failed()
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if current_handler is not None:
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current_handler(signum, frame)
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signal.signal(signal.SIGCHLD, __handler__)
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class TestDygraphDataLoaderSingalHandler(unittest.TestCase):
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def test_child_process_exit_with_error(self):
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def __test_process__():
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core._set_process_signal_handler()
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sys.exit(1)
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def try_except_exit():
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exception = None
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try:
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test_process = multiprocessing.Process(target=__test_process__)
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test_process.start()
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set_child_signal_handler(id(self), test_process.pid)
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time.sleep(5)
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except SystemError as ex:
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self.assertIn("Fatal", cpt.get_exception_message(ex))
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exception = ex
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return exception
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try_time = 10
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exception = None
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for i in range(try_time):
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exception = try_except_exit()
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if exception is not None:
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break
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self.assertIsNotNone(exception)
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def test_child_process_killed_by_sigsegv(self):
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def __test_process__():
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core._set_process_signal_handler()
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os.kill(os.getpid(), signal.SIGSEGV)
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def try_except_exit():
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exception = None
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try:
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test_process = multiprocessing.Process(target=__test_process__)
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test_process.start()
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set_child_signal_handler(id(self), test_process.pid)
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time.sleep(5)
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except SystemError as ex:
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self.assertIn("Segmentation fault",
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cpt.get_exception_message(ex))
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exception = ex
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return exception
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try_time = 10
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exception = None
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for i in range(try_time):
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exception = try_except_exit()
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if exception is not None:
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break
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self.assertIsNotNone(exception)
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def test_child_process_killed_by_sigbus(self):
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def __test_process__():
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core._set_process_signal_handler()
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os.kill(os.getpid(), signal.SIGBUS)
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def try_except_exit():
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exception = None
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try:
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test_process = multiprocessing.Process(target=__test_process__)
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test_process.start()
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set_child_signal_handler(id(self), test_process.pid)
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time.sleep(5)
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except SystemError as ex:
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self.assertIn("Bus error", cpt.get_exception_message(ex))
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exception = ex
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return exception
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try_time = 10
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exception = None
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for i in range(try_time):
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exception = try_except_exit()
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if exception is not None:
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break
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self.assertIsNotNone(exception)
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def test_child_process_killed_by_sigterm(self):
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def __test_process__():
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core._set_process_signal_handler()
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time.sleep(10)
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test_process = multiprocessing.Process(target=__test_process__)
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test_process.daemon = True
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test_process.start()
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set_child_signal_handler(id(self), test_process.pid)
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time.sleep(1)
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if __name__ == '__main__':
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unittest.main()
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