wal: add buf_copy to limit memory usage

tursodatabase / libsql

libSQL is a fork of SQLite that is both Open Source, and Open Contributions.

https://turso.tech/libsql

MIT License

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Closed LucioFranco closed 3 months ago

LucioFranco commented 5 months ago

This adds a new FileExt::buf_copy that allows to pass in a buffer that can be smaller than the file size to reduce memory pressure.

haaawk commented 3 months ago

Please resolve conflicts and let's get this one merged @LucioFranco

haaawk commented 3 months ago

I took the liberty to resolve conflicts and push the updated change. @LucioFranco please have a look if I didn't make any mistakes