pub fn find_entry(
rd: &mut SectorReader,
pack_lba: u32,
chunk_id: u32,
scratch: &mut [u32; 512],
) -> Option<PackEntry>Expand description
Scan the pack table at pack_lba for chunk_id and return its entry
(including byte_size and the FNV checksum the writer stored).
Reads the header/table sectors through scratch, one at a time. None
on read failure, bad magic/version, or id not present. I_MASK is
VBlank-only while it reads and restored when it returns.