diff

ddns_a::monitor

Function diff 

Source 
pub fn diff(
    old: &[AdapterSnapshot],
    new: &[AdapterSnapshot],
    timestamp: SystemTime,
) -> Vec<IpChange>
Expand description

Compares two adapter snapshots and returns a list of IP changes.

This is a pure function that detects which IP addresses were added or removed between two points in time. The comparison is done per-adapter by name.

§Arguments

  • old - The previous state of network adapters
  • new - The current state of network adapters
  • timestamp - The timestamp to assign to all detected changes

§Returns

A vector of IpChange events. The order is not guaranteed.

§Algorithm

For each adapter (matched by name):

  1. Find addresses in new but not in old → Added
  2. Find addresses in old but not in new → Removed

Adapters that exist only in old have all their addresses marked as Removed. Adapters that exist only in new have all their addresses marked as Added.