[7.16] Add Windows native method to retrieve the number of allocated bytes on disk for file (#79698) #80427
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…n disk for file (elastic#79698) In elastic#79371 we fixed a bug where cache files were not created as sparse files on Windows platforms because the wrong options were used when creating the files for the first time. This bug got unnoticed as we were lacking a way to retrieve the exact number of bytes allocated for a given file on disk. This commit adds a FileSystemNatives.allocatedSizeInBytes(Path) method for that exact purpose (only implemented for Windows for now) and a test in CacheFileTests that would fail on Windows if the cache file is not sparse. Relates elastic#79371
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@elasticmachine retest this please |
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@elasticmachine update branch |
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@elasticmachine update branch |
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Backports the following commits to 7.16: