Enum FrameDecode 

pub enum FrameDecode {
    Ok(FrameHeader),
    SaltMismatch,
    CrcInvalid,
    Malformed,
}

Classified outcome of decoding a single WAL frame. Pass-2 of recovery distinguishes “torn tail / stale generation” (silently discarded) from “CRC mismatch in a frame that should have been valid” (which surfaces as Error::WalCorruption). See docs/format.md § Recovery semantics.

Variants

Ok(FrameHeader)

Salt matches and CRC validates — a usable frame.

SaltMismatch

The frame’s salt does not match expected_salt. The frame may be torn-tail bytes from a previous generation or an in-progress torn write; in either case it is not corruption.

CrcInvalid

Salt matches but the CRC32C does not validate. In pass 2 (frames before the last commit marker) this is Error::WalCorruption; in pass 1 / past the last commit it is torn tail.

Malformed

Reserved-flag bits or buffer-length problem. Treated as torn tail by recovery (forward-compat boundary).

Trait Implementations

impl Debug for FrameDecode

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.