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DurabilityObserver

open_wal

Trait DurabilityObserver 

Source 
pub trait DurabilityObserver {
    // Required method
    fn on_durable(&mut self, durable_lsn: Lsn);
}
Expand description

Notified after each successful durability advance, on the writer thread.

on_durable runs synchronously inside commit once the fdatasync has completed and durable_lsn has moved forward. It MUST be cheap and non-blocking (an atomic release-store or a queue push), and MUST NOT perform I/O, block, or panic. durable_lsn is monotonic across calls.

Required Methods§

Source

fn on_durable(&mut self, durable_lsn: Lsn)

durable_lsn is the new (monotonic) durable watermark.

Dyn Compatibility§

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors§