Struct BtmCfg 

pub struct BtmCfg {
    pub itv: u64,
    pub cap: u64,
    pub cap_clean_kept: usize,
    pub mode: SnapMode,
    pub algo: SnapAlgo,
    pub volume: String,
}

Configures of snapshot mgmt

Fields

itv: u64

The interval between adjacent snapshots, default to 10 blocks

cap: u64

The maximum number of snapshots that will be stored, default to 100

cap_clean_kept: usize

How many snapshots should be kept after a clean_snapshots, default to 0

mode: SnapMode

Zfs or Btrfs or External, should try a guess if missing

algo: SnapAlgo

Fair or Fade, default to ‘Fair’

volume: String

A data volume containing all blockchain data

Implementations

impl BtmCfg

pub fn new(volume: &str, mode: Option<&str>) -> Result<Self>

Create a simple instance

pub fn snapshot(&self, idx: u64) -> Result<()>

Generate a snapshot for the latest state of blockchain

pub fn rollback(&self, idx: Option<i128>, strict: bool) -> Result<()>

Rollback the state of blockchain to a specificed height

pub fn get_sorted_snapshots(&self) -> Result<Vec<u64>>

Get snapshot list in ‘DESC’ order.

pub fn list_snapshots(&self) -> Result<()>

List all existing snapshots.

pub fn clean_snapshots(&self) -> Result<()>

Clean all existing snapshots.

Trait Implementations

impl Clone for BtmCfg

fn clone(&self) -> BtmCfg

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for BtmCfg

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

Formats the value using the given formatter.