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avoid self._errpipe_write double close#466

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Merged
fantix merged 3 commits into from
Jul 17, 2022
Merged

avoid self._errpipe_write double close #466

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b6d0e79
avoid self._errpipe_write double close
graingert May 11, 2022
efb39bd
Merge branch 'master' into patch-1
graingert Jul 16, 2022
2f31146
Merge branch 'master' into patch-1
graingert Jul 17, 2022
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1 change: 1 addition & 0 deletions uvloop/handles/process.pyx
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Original file line numberDiff line numberDiff line change
Expand Up@@ -101,6 +101,7 @@ cdef class UVProcess(UVHandle):
self._finish_init()

os_close(self._errpipe_write)
self._errpipe_write = -1

@graingertgraingertMay 11, 2022

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the write_pipe can be closed again sometimes:

uvloop/uvloop/handles/process.pyx

Lines 118 to 122 in 3e71ddc

try:
os_close(self._errpipe_write)
exceptOSError:
# Might be already closed
pass

if another thread allocates a file descriptor in this time then instead of raising OSError here the fd will be closed incorrectly


if preexec_fn is not None:
errpipe_data = bytearray()
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