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From Andrew Schwartzmeyer <>
Subject Review Request 62391: Fixed invalid handle bug in `os::process()`.
Date Mon, 18 Sep 2017 20:42:55 GMT

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Review request for mesos, James Peach and Joseph Wu.

Bugs: MESOS-7988

Repository: mesos


This patch fixes a bug found by running `mesos-tests` under Application
Verifier on Windows. Mesos was inadvertently attempting to get a process
handle for the System Idle Process with PID `0`, which is not permitted
by the OS. To remedy this, we now check if `os::process` receives `0`
for its argument, and return an error if so. Furthermore, we remove the
PID `0` from the `os::pids` API, as it is not useful to the programmer,
and only serves to cause errors later. Finally, the return value for
`OpenProcess` was being incorrectly checked, as the API returns a
`nullptr` on failure, not `INVALID_HANDLE_VALUE`.


  3rdparty/stout/include/stout/windows/os.hpp f35bf312a25066a167dc66243ad9bf8333cb36a6 



Built and ran `mesos-tests` on Windows under Application Verifier. All tests pass, and the
error from `OpenProcess` is no longer being returned.


Andrew Schwartzmeyer

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