7dbd17a5aa
Former-commit-id:133dc97f67[formerlya02aeb236c] [formerly9f19e3f712] [formerly133dc97f67[formerlya02aeb236c] [formerly9f19e3f712] [formerly06a8b51d6d[formerly9f19e3f712[formerly 64fa9254b946eae7e61bbc3f513b7c3696c4f54f]]]] Former-commit-id:06a8b51d6dFormer-commit-id:9bb8decbcf[formerly8e80217e59] [formerly377dcd10b9[formerly3360eb6c5f]] Former-commit-id:377dcd10b9Former-commit-id:e2ecdcfe33
55 lines
1.7 KiB
Python
55 lines
1.7 KiB
Python
#
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# Licensed to the Apache Software Foundation (ASF) under one
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# or more contributor license agreements. See the NOTICE file
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# distributed with this work for additional information
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# regarding copyright ownership. The ASF licenses this file
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# to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance
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# with the License. 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,
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# software distributed under the License is distributed on an
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# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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# KIND, either express or implied. See the License for the
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# specific language governing permissions and limitations
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# under the License.
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#
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import threading, traceback, signal, sys, time
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def stackdump(sig, frm):
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code = []
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for threadId, stack in sys._current_frames().items():
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code.append("\n# ThreadID: %s" % threadId)
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for filename, lineno, name, line in traceback.extract_stack(stack):
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code.append('File: "%s", line %d, in %s' % (filename, lineno, name))
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if line:
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code.append(" %s" % (line.strip()))
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print "\n".join(code)
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signal.signal(signal.SIGQUIT, stackdump)
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class LoudLock:
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def __init__(self):
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self.lock = threading.RLock()
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def acquire(self, blocking=1):
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while not self.lock.acquire(blocking=0):
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time.sleep(1)
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print >> sys.out, "TRYING"
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traceback.print_stack(None, None, out)
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print >> sys.out, "TRYING"
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print >> sys.out, "ACQUIRED"
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traceback.print_stack(None, None, out)
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print >> sys.out, "ACQUIRED"
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return True
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def _is_owned(self):
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return self.lock._is_owned()
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def release(self):
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self.lock.release()
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