Struct pancake_engine_common::memlog_r::ReadonlyMemLog

pub struct ReadonlyMemLog<K, V> {
    pub memtable: BTreeMap<K, V>,
    pub log_path: PathBuf,
}

A MemLog is a sorted dictionary (called Memtable), backed up by a write-ahead log file.

Fields

memtable: BTreeMap<K, V>

log_path: PathBuf

Implementations

impl<K, V> ReadonlyMemLog<K, V>

where K: Deser + Ord, V: Deser,

pub fn load<P: AsRef<Path>>(log_path: P) -> Result<Self>

pub fn mem_len(&self) -> usize

pub fn get_one<Q>(&self, k: &Q) -> Option<(&K, &V)>

where Q: Ord, K: Borrow<Q>,

pub fn get_range<'a, Q>( &'a self, k_lo: Option<&'a Q>, k_hi: Option<&'a Q> ) -> impl Iterator<Item = (&K, &V)>

where K: PartialOrd<Q>,

pub fn get_whole_range(&self) -> impl Iterator<Item = (&K, &V)>

Trait Implementations

impl<K, V> From<WritableMemLog<K, V>> for ReadonlyMemLog<K, V>

fn from(w_memlog: WritableMemLog<K, V>) -> ReadonlyMemLog<K, V>

Converts to this type from the input type.