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Reduce CPU usage by instead fetching read receipts after related sync events (#168)

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Benjamin Lee 2023-10-15 18:12:39 -07:00 • committed by GitHub
parent df3148b9f5
commit b2b47ed7a0
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4 changed files with 123 additions and 81 deletions
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53
src/base.rs
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@ -413,9 +413,6 @@ pub type IambResult<T> = UIResult<T, IambInfo>;
/// it's reacting to.
pub type MessageReactions = HashMap<OwnedEventId, (String, OwnedUserId)>;
/// Map of read receipts for different events.
pub type Receipts = HashMap<OwnedEventId, Vec<OwnedUserId>>;
/// Errors encountered during application use.
#[derive(thiserror::Error, Debug)]
pub enum IambError {
@ -549,7 +546,14 @@ pub struct RoomInfo {
pub messages: Messages,
/// A map of read markers to display on different events.
pub receipts: HashMap<OwnedEventId, Vec<OwnedUserId>>,
pub event_receipts: HashMap<OwnedEventId, HashSet<OwnedUserId>>,
/// A map of the most recent read marker for each user.
///
/// Every receipt in this map should also have an entry in [`event_receipts`],
/// however not every user has an entry. If a user's most recent receipt is
/// older than the oldest loaded event, that user will not be included.
pub user_receipts: HashMap<OwnedUserId, OwnedEventId>,
/// An event ID for where we should indicate we've read up to.
pub read_till: Option<OwnedEventId>,
@ -698,6 +702,27 @@ impl RoomInfo {
self.fetch_last.map_or(false, |i| i.elapsed() < ROOM_FETCH_DEBOUNCE)
}
fn clear_receipt(&mut self, user_id: &OwnedUserId) -> Option<()> {
let old_event_id = self.user_receipts.get(user_id)?;
let old_receipts = self.event_receipts.get_mut(old_event_id)?;
old_receipts.remove(user_id);
if old_receipts.is_empty() {
self.event_receipts.remove(old_event_id);
}
None
}
pub fn set_receipt(&mut self, user_id: OwnedUserId, event_id: OwnedEventId) {
self.clear_receipt(&user_id);
self.event_receipts
.entry(event_id.clone())
.or_default()
.insert(user_id.clone());
self.user_receipts.insert(user_id, event_id);
}
fn get_typers(&self) -> &[OwnedUserId] {
if let Some((t, users)) = &self.users_typing {
if t.elapsed() < Duration::from_secs(4) {
@ -860,26 +885,6 @@ impl ChatStore {
.unwrap_or_else(|| "Untitled Matrix Room".to_string())
}
/// Update the receipts for multiple rooms.
pub async fn set_receipts(
&mut self,
receipts: Vec<(OwnedRoomId, Receipts)>,
) -> Vec<(OwnedRoomId, OwnedEventId)> {
let mut updates = vec![];
for (room_id, receipts) in receipts.into_iter() {
if let Some(info) = self.rooms.get_mut(&room_id) {
info.receipts = receipts;
if let Some(read_till) = info.read_till.take() {
updates.push((room_id, read_till));
}
}
}
return updates;
}
/// Mark a room for loading more scrollback.
pub fn mark_for_load(&mut self, room_id: OwnedRoomId) {
self.need_load.insert(room_id);