Struct grin_core::core::pmmr::RewindablePMMR

pub struct RewindablePMMR<'a, T, B>
where
    T: PMMRable,
    B: Backend<T>,
{ /* private fields */ }

Rewindable (but still readonly) view of a PMMR.

Implementations

impl<'a, T, B> RewindablePMMR<'a, T, B>

where T: PMMRable, B: 'a + Backend<T>,

pub fn new(backend: &'a B) -> RewindablePMMR<'_, T, B>

Build a new readonly PMMR.

pub fn at(backend: &'a B, last_pos: u64) -> RewindablePMMR<'_, T, B>

Build a new readonly PMMR pre-initialized to last_pos with the provided backend.

pub fn rewind(&mut self, position: u64) -> Result<(), String>

Note: We only rewind the last_pos, we do not rewind the (readonly) backend. Prunable backends are not supported here.

pub fn as_readonly(&self) -> ReadonlyPMMR<'a, T, B>

Allows conversion of a “rewindable” PMMR into a “readonly” PMMR. Intended usage is to create a rewindable PMMR, rewind it, then convert to “readonly” and read from it.