a240e150e837b5a95ed19765a2e8b7c5b6013f35 streams: remove AutoFile::Get() entirely (Pieter Wuille)
e624a9bef16b6335fd119c10698352b59bf2930a streams: cache file position within AutoFile (Pieter Wuille)
Pull request description:
Fixes#30833.
Instead of relying on frequent `ftell` calls (which appear to cause a significant slowdown on some systems) in XOR-enabled `AutoFile`s, cache the file position within `AutoFile` itself.
ACKs for top commit:
achow101:
ACK a240e150e837b5a95ed19765a2e8b7c5b6013f35
davidgumberg:
untested reACK a240e150e8
theStack:
Code-review ACK a240e150e837b5a95ed19765a2e8b7c5b6013f35
Tree-SHA512: fd3681edc018afaf955dc7a41a0c953ca80d46c1129e3c5b306c87c95aae93b2fe7b900794eb8b6f10491f9211645e7939918a28838295e6873eb226fca7006f