fn resource_names(
bref: &Src<'_>,
keys: &[u64],
out: &mut HashMap<u64, String>,
) -> Result<()>Expand description
service.name per entity key, accumulated across blocks.
Every OTel SDK sets service.name and section 7.2’s identity ladder is built on
it, so a key almost always has one. or_insert and not insert: the first
block wins, and callers walk newest first, so a renamed service shows the
name it has now rather than the one it booted with.