Alex Clemmer created MESOS-5882:
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Summary: `os::cloexec` does not exist on Windows
Key: MESOS-5882
URL: https://issues.apache.org/jira/browse/MESOS-5882
Project: Mesos
Issue Type: Bug
Components: stout
Reporter: Alex Clemmer
Assignee: Alex Clemmer
`os::cloexec` does not work on Windows. It will never work at the OS level.
Because of this, there are likely many important and hard-to-detect bugs
hanging around the agent.
This is extremely important to fix. Some possible solutions to investigate
(some of which are _extremely_ risky):
* Abstract out file descriptors into a class, implement cloexec in that class
on Windows (since we can't rely on the OS to do it).
* Refactor all the code that relies on `os::cloexec` to not rely on it.
Of the two, the first seems less risky in the short term, because the cloexec
code only affects Windows. Depending on the semantics of the implementation of
the `FileDescriptor` class, it is possible that this is riskier to Windows in
the longer term, as the semantics of `cloexec` may have subtle difference
between Linux and Windows.
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