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Review request for mesos, Akash Gupta, John Kordich, and Joseph Wu. Repository: mesos Description ------- The biggest bug with `os::rmdir` was the race condition that appeared on Windows. There is now method to delete a file on Windows synchronously. Furthermore, the `RemoveDirectory` API requires that the directory actually be empty; that is, it does contain files that are marked for deletion but not yet deleted. Avoiding this race condition requires waiting for the file to be deleted, not just marked for deletion. This was accomplished by simplifying the `recursive_remove_directory` code so that the base recursion case deletes files and symlinks, and adding a wait in the depth-first search after each recursion. Furthermore, `os::rmdir` was incorrectly calling `os::realpath`. The specification of `os::rmdir` states that it expects an absolute path. The error condition is that the path is not a directory. A symlink to a directory is not a directory, so do not follow semantics are required. In the non-recursive case, a stray ANSI CRT function was still in-use, instead of a long-path aware Unicode Windows API. Diffs ----- 3rdparty/stout/include/stout/internal/windows/longpath.hpp eb62dd6d4cb726de310a962c07ce5620e2939d17 3rdparty/stout/include/stout/os/windows/rmdir.hpp 76b74f853393c08020d3b713bcd0f9ce12032acd Diff: https://reviews.apache.org/r/64181/diff/1/ Testing ------- --gtest_repeat=100 1 second wait seems to be long enough. Thanks, Andrew Schwartzmeyer
