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Avoid reading into a rented byte array beyond the requested length #21210
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This PR has Quantification details
Why proper sizing of changes matters
Optimal pull request sizes drive a better predictable PR flow as they strike a
What can I do to optimize my changes
How to interpret the change counts in git diff output
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| byte[] buffer = ArrayPool<byte>.Shared.Rent(StreamHelper.ChunkSize); | ||
| Memory<byte> bufMem = buffer.AsMemory(0, StreamHelper.ChunkSize); |
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I don't understand why we need to reduce the buffer size. On fast network we can read 2, 3 and more chunks at time. Why do we limit the reading to one chunk at time if we already have large buffer in any case?
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Good question. I cannot remember why I decided to make this change 🤷♂️
Will close this PR.
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This pull request has been automatically marked as Review Needed because it has been there has not been any activity for 7 days. |
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📣 Hey @daxian-dbw, how did we do? We would love to hear your feedback with the link below! 🗣️ 🔗 https://aka.ms/PSRepoFeedback |
PR Summary
Avoid reading into a rented byte array beyond the requested length.
ArrayPool<T>.Shared.Rentreturns an array that is at least the size of the requested length, but usually larger than the requested length, sometimes a lot larger. The changes in this PR is to make sure we don't read more than the requested size of bytes, just in case that the returned buffer is a lot larger than the requested length.PR Checklist
.h,.cpp,.cs,.ps1and.psm1files have the correct copyright headerWIP:or[ WIP ]to the beginning of the title (theWIPbot will keep its status check atPendingwhile the prefix is present) and remove the prefix when the PR is ready.