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perf: S2S channel-message fanout shares the line by Arc across members (relay_channel_message) instead of cloning a String per recipient — mirrors the client PRIVMSG fanout; builds at most three variants (plain / server-time / echo-services-tagged) whatever the channel size, behaviour unchanged

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This commit is contained in:
Jean Chevronnet 2026-08-19 00:47:32 +00:00
parent 910422199b
commit a80b86b50d
2 changed files with 42 additions and 13 deletions
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17
src/link.rs
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@ -1453,20 +1453,11 @@ impl Server {
if !self.channels.contains_key(&key) {
return;
}
// echo/services badges a service source for message-tags clients; the
// line is built once and shared by Arc across all members (not cloned
// per recipient).
let base = format!(":{prefix} {cmd} {target} :{text}");
// echo/services: tag messages from a network service so capable
// clients can badge them. Per-recipient (needs the message-tags cap).
let is_service = src_is_service;
let tagged = format!("@echo/services {base}");
let members: Vec<Uid> = self.channels[&key].members.keys().copied().collect();
for m in members {
if self.users.get(&m).map(|u| u.flags.deaf).unwrap_or(false) {
continue;
}
let want_tag = is_service
&& self.users.get(&m).map(|u| u.caps.message_tags).unwrap_or(false);
self.send(m, if want_tag { tagged.clone() } else { base.clone() });
}
self.relay_channel_message(&key, &base, src_is_service);
// forward to the other links that have members in this channel
for l in self.channel_link_targets(&key, Some(via)) {
self.link_out(l, format!(":{src} {cmd} {target} :{text}"));