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gh-129107: fix thread safety of bytearray where two critical sections are needed (#130227)

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Tomasz Pytel 2025-02-27 09:59:58 -05:00 • committed by GitHub
parent 8ba0d7bbc2
commit e85f81f430
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3 changed files with 33 additions and 6 deletions
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12
Lib/test/test_bytes.py
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@ -2380,12 +2380,22 @@ class FreeThreadingTest(unittest.TestCase):
b.wait()
a[:] = c
def ass_subscript2(b, a, c): # MODIFIES!
b.wait()
a[:] = c
assert b'\xdd' not in a
def mod(b, a):
c = tuple(range(4096))
b.wait()
try: a % c
except TypeError: pass
def mod2(b, a, c):
b.wait()
d = a % c
assert b'\xdd' not in d
def repr_(b, a):
b.wait()
repr(a)
@ -2503,7 +2513,9 @@ class FreeThreadingTest(unittest.TestCase):
check([clear] + [contains] * 10)
check([clear] + [subscript] * 10)
check([clear2] + [ass_subscript2] * 10, None, bytearray(b'0' * 0x400000))
check([clear] + [mod] * 10, bytearray(b'%d' * 4096))
check([clear2] + [mod2] * 10, bytearray(b'%s'), bytearray(b'0' * 0x400000))
check([clear] + [capitalize] * 10, bytearray(b'a' * 0x40000))
check([clear] + [center] * 10, bytearray(b'a' * 0x40000))