pytest-dev / pytest-dev/execnet

More judicious use of file descriptors

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#71 2 comments 0 reactions 0 assignees View on GitHub

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bug
Dominant language
Python
Stars
102
Forks
47
PR merge metrics
No merged PRs in 30d

Description

Currently execnet uses pipes without the CLOEXEC flag. There should be something like this around the parts that make the pipes:

old = fcntl.fcntl(fd, fcntl.F_GETFD)
fcntl.fcntl(fd, fcntl.F_SETFD, old | getattr(fcntl, 'FD_CLOEXEC', 1))

Sorry for incredibly-lousy-without-testcase bug report, I'm just at the end of my wits after figuring out my app is littered with subprocess.Popen without close_fds=True 😤

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Research direction

No file or test is named. Locate the execnet code that creates pipes, then inspect related subprocess or descriptor-handling tests if present. Done means the relevant pipes use the CLOEXEC flag and regression coverage verifies the intended descriptor behavior.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
distributed-systems, operating-systems
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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