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Ship it!
This really does feel hacky, but the alternative requires such a significant refactoring that
it's probably not worth it (potential bug factory) just to get this working properly on Windows.
I'll hold my nose and sign off.
- John Kordich
On April 5, 2018, 1:58 a.m., Andrew Schwartzmeyer wrote:
>
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> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/66437/
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>
> (Updated April 5, 2018, 1:58 a.m.)
>
>
> Review request for mesos, Akash Gupta, Eric Mumau, John Kordich, Joseph Wu, and Michael
Park.
>
>
> Bugs: MESOS-8675 and MESOS-8683
> https://issues.apache.org/jira/browse/MESOS-8675
> https://issues.apache.org/jira/browse/MESOS-8683
>
>
> Repository: mesos
>
>
> Description
> -------
>
> After all the CRT APIs were replaced with Windows APIs, we no longer
> needed to support the semantics of an `int` file descriptor in
> general (in the sense of opening a CRT handle that's associated with
> the actual kernel object for the given `HANDLE`). There are specific
> use cases (usually third-party code) which still require a CRT
> int-like file descriptor, which the `crt()` function explicitly
> allocates (this allocation used to be done in the constructor).
>
> Thus the entire `FD_CRT` type was removed from the `WindowsFD`
> abstraction. It still acts like an `int` in the sense that it can be
> constructed from one and compared to one. However, construction via
> `int` only supports the standard file descriptors 0, 1, and 2 for
> `stdin`, `stdout`, and `stderr`. Any other construction creates an
> `int_fd` which holds an `INVALID_HANDLE` value. When being compared to
> an `int`, the abstraction simply returns -1 if it is invalid (based on
> the result of the `is_valid()` method) or 0 if it is valid. This is to
> support the semantics of checking validity by something like `if (fd <
> 0)` or `if (fd == -1)`.
>
> With the deletion of the `FD_CRT` type from `WindowsFD`, all the Stout
> APIs that switched on the type were simplified, with the last of the
> CRT code deleted.
>
> Thanks to the introduction of the private `int get_valid()` function,
> and the removal of the `FD_CRT` type, the comparison operators became
> much simpler.
>
>
> Diffs
> -----
>
> 3rdparty/stout/include/stout/os/windows/close.hpp ff635e44235d63888a210cd68d49f6678a851e31
> 3rdparty/stout/include/stout/os/windows/dup.hpp 265046cf7ffc14f7326711d295aa7dd4f0a8a1e3
> 3rdparty/stout/include/stout/os/windows/fcntl.hpp bf8c38acad60f9b0eb752053dcd53a9fda7b8bfa
> 3rdparty/stout/include/stout/os/windows/fd.hpp d7f8cdf1ad877eb55589bf5a9e75d295f91990a7
> 3rdparty/stout/include/stout/os/windows/read.hpp 8047ad590fcc46d3ec46b551472d8c518ae49cc1
> 3rdparty/stout/include/stout/os/windows/write.hpp 71006489918d9495d37d2fdfdca08b40b419481a
> 3rdparty/stout/tests/os/filesystem_tests.cpp c190baa2230298e428d4034b90dccffb59b4e710
>
>
> Diff: https://reviews.apache.org/r/66437/diff/2/
>
>
> Testing
> -------
>
>
> Thanks,
>
> Andrew Schwartzmeyer
>
>
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