Function raft::util::limit_size

pub fn limit_size<T: PbMessage + Clone>(entries: &mut Vec<T>, max: Option<u64>)

Truncates the list of entries down to a specific byte-length of all entries together.

Examples

use raft::{util::limit_size, prelude::*};

let template = {
    let mut entry = Entry::default();
    entry.data = "*".repeat(100).into_bytes().into();
    entry
};

// Make a bunch of entries that are ~100 bytes long
let mut entries = vec![
    template.clone(),
    template.clone(),
    template.clone(),
    template.clone(),
    template.clone(),
];

assert_eq!(entries.len(), 5);
limit_size(&mut entries, Some(220));
assert_eq!(entries.len(), 2);

// `entries` will always have at least 1 Message
limit_size(&mut entries, Some(0));
assert_eq!(entries.len(), 1);