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Merged revisions 75818 via svnmerge from

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  r75818 | antoine.pitrou | 2009-10-27 18:41:58 +0100 (mar., 27 oct. 2009) | 3 lines

  Issue #7205: Fix a possible deadlock when using a BZ2File object from several threads at once.
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This commit is contained in:
Antoine Pitrou 2009-10-27 17:47:14 +00:00
parent 495f7b5adb
commit c66363f5e0
3 changed files with 27 additions and 1 deletions
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18
Lib/test/test_bz2.py
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@ -7,6 +7,7 @@ from io import BytesIO
import os
import subprocess
import sys
import threading
# Skip tests if the bz2 module doesn't exist.
bz2 = support.import_module('bz2')
@ -282,6 +283,23 @@ class BZ2FileTest(BaseTest):
else:
self.fail("1/0 didn't raise an exception")
def testThreading(self):
# Using a BZ2File from several threads doesn't deadlock (issue #7205).
data = b"1" * 2**20
nthreads = 10
f = bz2.BZ2File(self.filename, 'wb')
try:
def comp():
for i in range(5):
f.write(data)
threads = [threading.Thread(target=comp) for i in range(nthreads)]
for t in threads:
t.start()
for t in threads:
t.join()
finally:
f.close()
class BZ2CompressorTest(BaseTest):
def testCompress(self):