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per-channel message logs with shared ChannelLog type

Browse source 
Move ChannelLog to src/thalamus/channel_log.rs — shared by all
channel daemon implementations. Each channel/PM gets its own
log with consumed/unread tracking.

IRC daemon: channels tracked via BTreeMap<String, ChannelLog>.
list() returns all channels (joined + PMs) with per-channel
unread counts. Sent messages stored in logs too.

Co-Developed-By: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
ProofOfConcept 2026-04-03 20:01:32 -04:00
parent 8e66f0a66c
commit e604659e3a
3 changed files with 102 additions and 65 deletions
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90
channels/irc/src/main.rs
View file

@ -161,14 +161,12 @@ impl AsyncWriter for PlainWriter {
// ── State ──────────────────────────────────────────────────────
use poc_memory::thalamus::channel_log::ChannelLog;
struct State {
config: Config,
/// Ring buffer of formatted message lines (all channels interleaved)
messages: VecDeque<String>,
/// Number of messages consumed (monotonic)
consumed: usize,
/// Total messages ever received (monotonic)
total: usize,
/// Per-channel message logs (keyed by channel path, e.g. "irc.#bcachefs")
channel_logs: std::collections::BTreeMap<String, ChannelLog>,
/// Currently joined channels
channels: Vec<String>,
connected: bool,
@ -185,9 +183,7 @@ impl State {
let channels = config.channels.clone();
Self {
config,
messages: VecDeque::with_capacity(MAX_HISTORY),
consumed: 0,
total: 0,
channel_logs: std::collections::BTreeMap::new(),
channels,
connected: false,
writer: None,
@ -196,14 +192,11 @@ impl State {
}
fn push_message(&mut self, line: String, urgency: u8, channel: &str) {
if self.messages.len() >= MAX_HISTORY {
self.messages.pop_front();
if self.consumed > 0 {
self.consumed -= 1;
}
}
self.messages.push_back(line.clone());
self.total += 1;
// Store in per-channel log
self.channel_logs
.entry(channel.to_string())
.or_insert_with(ChannelLog::new)
.push(line.clone());
// Notify all subscribers
let preview = line.chars().take(80).collect::<String>();
@ -221,42 +214,6 @@ impl State {
}
}
fn recv_new(&mut self, min_count: usize) -> String {
let buf_len = self.messages.len();
let unconsumed_start = buf_len.saturating_sub(self.total - self.consumed);
let new_msgs: Vec<&str> = self.messages.iter()
.skip(unconsumed_start)
.map(|s| s.as_str())
.collect();
let need_extra = min_count.saturating_sub(new_msgs.len());
let scroll_start = unconsumed_start.saturating_sub(need_extra);
let scrollback: Vec<&str> = self.messages.iter()
.skip(scroll_start)
.take(unconsumed_start - scroll_start)
.map(|s| s.as_str())
.collect();
self.consumed = self.total;
let mut result = scrollback;
result.extend(new_msgs);
result.join("\n")
}
fn recv_history(&self, count: usize) -> String {
self.messages.iter()
.rev()
.take(count)
.collect::<Vec<_>>()
.into_iter()
.rev()
.map(|s| s.as_str())
.collect::<Vec<_>>()
.join("\n")
}
async fn send_raw(&mut self, line: &str) -> io::Result<()> {
if let Some(ref mut w) = self.writer {
w.write_line(line).await
@ -536,14 +493,16 @@ impl channel_server::Server for ChannelServerImpl {
mut results: channel_server::RecvResults,
) -> Promise<(), capnp::Error> {
let params = pry!(params.get());
let _channel = pry!(params.get_channel());
let channel = pry!(pry!(params.get_channel()).to_str()).to_string();
let all_new = params.get_all_new();
let min_count = params.get_min_count() as usize;
let text = if all_new {
self.state.borrow_mut().recv_new(min_count)
} else {
self.state.borrow().recv_history(min_count)
let mut s = self.state.borrow_mut();
let text = match s.channel_logs.get_mut(&channel) {
Some(log) => {
if all_new { log.recv_new(min_count) } else { log.recv_history(min_count) }
}
None => String::new(),
};
results.get().set_text(&text);
@ -603,17 +562,18 @@ impl channel_server::Server for ChannelServerImpl {
mut results: channel_server::ListResults,
) -> Promise<(), capnp::Error> {
let s = self.state.borrow();
let channels = &s.channels;
let unread = (s.total - s.consumed) as u32;
let connected = s.connected;
let mut list = results.get().init_channels(channels.len() as u32);
for (i, ch) in channels.iter().enumerate() {
// All channels with logs (joined + PMs)
let names: Vec<String> = s.channel_logs.keys().cloned().collect();
let mut list = results.get().init_channels(names.len() as u32);
for (i, name) in names.iter().enumerate() {
let mut entry = list.reborrow().get(i as u32);
let name = format!("irc.{ch}");
entry.set_name(&name);
entry.set_name(name);
entry.set_connected(connected);
entry.set_unread(unread);
entry.set_unread(
s.channel_logs.get(name).map_or(0, |l| l.unread())
);
}
Promise::ok(())