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Remove call to SetLength when copying ReadOnlyMemory<byte> to a MemoryMapped file - #11796
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vzarytovskii
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Jul 8, 2021
| stream.SetLength(stream.Length + length) | ||
| let span = Span<byte>(stream.PositionPointer |> NativePtr.toVoidPtr, int length) | ||
| bytes.Span.CopyTo(span) | ||
| stream.Position <- stream.Position + length |
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Do we still need to set the position here too?
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Yea as TryFromByteMemory version does not reset the stream's position once it's copied.
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@vzarytovskii correctly pointed out that we can't set the length of a memory mapped file. It's already fixed length so it should be safe to not do it.