Always calculate state diff IDs in syncv3

seemingly fixes #779

src/admin/room/moderation.rs

@@ -6,6 +6,7 @@ use conduwuit::{
 	warn,
 };
 use futures::StreamExt;
+use futures::FutureExt;
 use ruma::{OwnedRoomId, OwnedRoomOrAliasId, RoomAliasId, RoomId, RoomOrAliasId};
 
 use crate::{admin_command, admin_command_dispatch, get_room_info};
@@ -155,7 +156,10 @@ async fn ban_room(&self, room: OwnedRoomOrAliasId) -> Result {
 			 evicting admins too)",
 		);
 
-		if let Err(e) = leave_room(self.services, user_id, &room_id, None).await {
+		if let Err(e) = leave_room(self.services, user_id, &room_id, None)
+			.boxed()
+			.await
+		{
 			warn!("Failed to leave room: {e}");
 		}
 
@@ -323,7 +327,10 @@ async fn ban_list_of_rooms(&self) -> Result {
 				 evicting admins too)",
 			);
 
-			if let Err(e) = leave_room(self.services, user_id, &room_id, None).await {
+			if let Err(e) = leave_room(self.services, user_id, &room_id, None)
+				.boxed()
+				.await
+			{
 				warn!("Failed to leave room: {e}");
 			}
 

src/admin/user/commands.rs

@@ -9,6 +9,7 @@ use conduwuit::{
 };
 use conduwuit_api::client::{leave_all_rooms, update_avatar_url, update_displayname};
 use futures::StreamExt;
+use futures::FutureExt;
 use ruma::{
 	OwnedEventId, OwnedRoomId, OwnedRoomOrAliasId, OwnedUserId, UserId,
 	events::{
@@ -655,7 +656,9 @@ pub(super) async fn force_leave_room(
 		return Err!("{user_id} is not joined in the room");
 	}
 
-	leave_room(self.services, &user_id, &room_id, None).await?;
+	leave_room(self.services, &user_id, &room_id, None)
+		.boxed()
+		.await?;
 
 	self.write_str(&format!("{user_id} has left {room_id}.",))
 		.await

src/api/client/account.rs

@@ -763,7 +763,9 @@ pub(crate) async fn deactivate_route(
 	super::update_displayname(&services, sender_user, None, &all_joined_rooms).await;
 	super::update_avatar_url(&services, sender_user, None, None, &all_joined_rooms).await;
 
-	full_user_deactivate(&services, sender_user, &all_joined_rooms).await?;
+	full_user_deactivate(&services, sender_user, &all_joined_rooms)
+		.boxed()
+		.await?;
 
 	info!("User {sender_user} deactivated their account.");
 
@@ -915,7 +917,9 @@ pub async fn full_user_deactivate(
 		}
 	}
 
-	super::leave_all_rooms(services, user_id).await;
+	super::leave_all_rooms(services, user_id)
+		.boxed()
+		.await;
 
 	Ok(())
 }

src/api/client/membership.rs

@@ -114,7 +114,9 @@ async fn banned_room_check(
 					.collect()
 					.await;
 
-				full_user_deactivate(services, user_id, &all_joined_rooms).await?;
+				full_user_deactivate(services, user_id, &all_joined_rooms)
+					.boxed()
+					.await?;
 			}
 
 			return Err!(Request(Forbidden("This room is banned on this homeserver.")));
@@ -153,7 +155,9 @@ async fn banned_room_check(
 					.collect()
 					.await;
 
-				full_user_deactivate(services, user_id, &all_joined_rooms).await?;
+				full_user_deactivate(services, user_id, &all_joined_rooms)
+					.boxed()
+					.await?;
 			}
 
 			return Err!(Request(Forbidden("This remote server is banned on this homeserver.")));
@@ -259,6 +263,7 @@ pub(crate) async fn join_room_by_id_or_alias_route(
 				room_id.server_name(),
 				client,
 			)
+			.boxed()
 			.await?;
 
 			let mut servers = body.via.clone();
@@ -478,6 +483,7 @@ pub(crate) async fn leave_room_route(
 	body: Ruma<leave_room::v3::Request>,
 ) -> Result<leave_room::v3::Response> {
 	leave_room(&services, body.sender_user(), &body.room_id, body.reason.clone())
+		.boxed()
 		.await
 		.map(|()| leave_room::v3::Response::new())
 }
@@ -1792,7 +1798,10 @@ pub async fn leave_all_rooms(services: &Services, user_id: &UserId) {
 
 	for room_id in all_rooms {
 		// ignore errors
-		if let Err(e) = leave_room(services, user_id, &room_id, None).await {
+		if let Err(e) = leave_room(services, user_id, &room_id, None)
+			.boxed()
+			.await
+		{
 			warn!(%user_id, "Failed to leave {room_id} remotely: {e}");
 		}
 

src/api/client/space.rs

@@ -121,7 +121,9 @@ where
 					.map(|(key, val)| (key, val.collect()))
 					.collect();
 
-				if !populate {
+				if populate {
+					rooms.push(summary_to_chunk(summary.clone()));
+				} else {
 					children = children
 						.iter()
 						.rev()
@@ -144,10 +146,8 @@ where
 						.collect();
 				}
 
-				if populate {
-					rooms.push(summary_to_chunk(summary.clone()));
-				} else if queue.is_empty() && children.is_empty() {
-					return Err!(Request(InvalidParam("Room IDs in token were not found.")));
+				if !populate && queue.is_empty() && children.is_empty() {
+					break;
 				}
 
 				parents.insert(current_room.clone());

src/api/client/state.rs

@@ -6,6 +6,7 @@ use conduwuit::{
 };
 use conduwuit_service::Services;
 use futures::TryStreamExt;
+use futures::FutureExt;
 use ruma::{
 	OwnedEventId, RoomId, UserId,
 	api::client::state::{get_state_events, get_state_events_for_key, send_state_event},
@@ -59,6 +60,7 @@ pub(crate) async fn send_state_event_for_empty_key_route(
 	body: Ruma<send_state_event::v3::Request>,
 ) -> Result<RumaResponse<send_state_event::v3::Response>> {
 	send_state_event_for_key_route(State(services), body)
+		.boxed()
 		.await
 		.map(RumaResponse)
 }

src/api/client/sync/v3.rs

@@ -1009,8 +1009,6 @@ async fn calculate_state_incremental<'a>(
 ) -> Result<StateChanges> {
 	let since_shortstatehash = since_shortstatehash.unwrap_or(current_shortstatehash);
 
-	let state_changed = since_shortstatehash != current_shortstatehash;
-
 	let encrypted_room = services
 		.rooms
 		.state_accessor
@@ -1042,7 +1040,7 @@ async fn calculate_state_incremental<'a>(
 		})
 		.into();
 
-	let state_diff_ids: OptionFuture<_> = (!full_state && state_changed)
+	let state_diff_ids: OptionFuture<_> = (!full_state)
 		.then(|| {
 			StreamExt::into_future(
 				services

src/core/alloc/je.rs

@@ -274,6 +274,10 @@ pub fn set_dirty_decay<I: Into<Option<usize>>>(arena: I, decay_ms: isize) -> Res
 	}
 }
 
+pub fn background_thread_enable(enable: bool) -> Result<bool> {
+	set::<u8>(&mallctl!("background_thread"), enable.into()).map(is_nonzero!())
+}
+
 #[inline]
 #[must_use]
 pub fn is_affine_arena() -> bool { is_percpu_arena() || is_phycpu_arena() }

src/core/config/mod.rs

@@ -2042,41 +2042,41 @@ fn default_database_backups_to_keep() -> i16 { 1 }
 
 fn default_db_write_buffer_capacity_mb() -> f64 { 48.0 + parallelism_scaled_f64(4.0) }
 
-fn default_db_cache_capacity_mb() -> f64 { 128.0 + parallelism_scaled_f64(64.0) }
+fn default_db_cache_capacity_mb() -> f64 { 256.0 + parallelism_scaled_f64(256.0) }
 
-fn default_pdu_cache_capacity() -> u32 { parallelism_scaled_u32(10_000).saturating_add(100_000) }
+fn default_pdu_cache_capacity() -> u32 { parallelism_scaled_u32(25_000).saturating_add(200_000) }
 
 fn default_cache_capacity_modifier() -> f64 { 1.0 }
 
 fn default_auth_chain_cache_capacity() -> u32 {
-	parallelism_scaled_u32(10_000).saturating_add(100_000)
+	parallelism_scaled_u32(25_000).saturating_add(200_000)
 }
 
 fn default_shorteventid_cache_capacity() -> u32 {
-	parallelism_scaled_u32(50_000).saturating_add(100_000)
+	parallelism_scaled_u32(50_000).saturating_add(200_000)
 }
 
 fn default_eventidshort_cache_capacity() -> u32 {
-	parallelism_scaled_u32(25_000).saturating_add(100_000)
+	parallelism_scaled_u32(25_000).saturating_add(200_000)
 }
 
 fn default_eventid_pdu_cache_capacity() -> u32 {
-	parallelism_scaled_u32(25_000).saturating_add(100_000)
+	parallelism_scaled_u32(25_000).saturating_add(200_000)
 }
 
 fn default_shortstatekey_cache_capacity() -> u32 {
-	parallelism_scaled_u32(10_000).saturating_add(100_000)
+	parallelism_scaled_u32(25_000).saturating_add(200_000)
 }
 
 fn default_statekeyshort_cache_capacity() -> u32 {
-	parallelism_scaled_u32(10_000).saturating_add(100_000)
+	parallelism_scaled_u32(25_000).saturating_add(200_000)
 }
 
 fn default_servernameevent_data_cache_capacity() -> u32 {
-	parallelism_scaled_u32(100_000).saturating_add(500_000)
+	parallelism_scaled_u32(200_000).saturating_add(500_000)
 }
 
-fn default_stateinfo_cache_capacity() -> u32 { parallelism_scaled_u32(100) }
+fn default_stateinfo_cache_capacity() -> u32 { parallelism_scaled_u32(2000) }
 
 fn default_roomid_spacehierarchy_cache_capacity() -> u32 { parallelism_scaled_u32(1000) }
 

src/core/matrix/event.rs

@@ -1,18 +1,10 @@
-use std::{
-	borrow::Borrow,
-	fmt::{Debug, Display},
-	hash::Hash,
-};
-
 use ruma::{EventId, MilliSecondsSinceUnixEpoch, RoomId, UserId, events::TimelineEventType};
 use serde_json::value::RawValue as RawJsonValue;
 
 /// Abstraction of a PDU so users can have their own PDU types.
 pub trait Event {
-	type Id: Clone + Debug + Display + Eq + Ord + Hash + Send + Borrow<EventId>;
-
 	/// The `EventId` of this event.
-	fn event_id(&self) -> &Self::Id;
+	fn event_id(&self) -> &EventId;
 
 	/// The `RoomId` of this event.
 	fn room_id(&self) -> &RoomId;
@@ -34,20 +26,18 @@ pub trait Event {
 
 	/// The events before this event.
 	// Requires GATs to avoid boxing (and TAIT for making it convenient).
-	fn prev_events(&self) -> impl DoubleEndedIterator<Item = &Self::Id> + Send + '_;
+	fn prev_events(&self) -> impl DoubleEndedIterator<Item = &EventId> + Send + '_;
 
 	/// All the authenticating events for this event.
 	// Requires GATs to avoid boxing (and TAIT for making it convenient).
-	fn auth_events(&self) -> impl DoubleEndedIterator<Item = &Self::Id> + Send + '_;
+	fn auth_events(&self) -> impl DoubleEndedIterator<Item = &EventId> + Send + '_;
 
 	/// If this event is a redaction event this is the event it redacts.
-	fn redacts(&self) -> Option<&Self::Id>;
+	fn redacts(&self) -> Option<&EventId>;
 }
 
 impl<T: Event> Event for &T {
-	type Id = T::Id;
-
-	fn event_id(&self) -> &Self::Id { (*self).event_id() }
+	fn event_id(&self) -> &EventId { (*self).event_id() }
 
 	fn room_id(&self) -> &RoomId { (*self).room_id() }
 
@@ -61,13 +51,13 @@ impl<T: Event> Event for &T {
 
 	fn state_key(&self) -> Option<&str> { (*self).state_key() }
 
-	fn prev_events(&self) -> impl DoubleEndedIterator<Item = &Self::Id> + Send + '_ {
+	fn prev_events(&self) -> impl DoubleEndedIterator<Item = &EventId> + Send + '_ {
 		(*self).prev_events()
 	}
 
-	fn auth_events(&self) -> impl DoubleEndedIterator<Item = &Self::Id> + Send + '_ {
+	fn auth_events(&self) -> impl DoubleEndedIterator<Item = &EventId> + Send + '_ {
 		(*self).auth_events()
 	}
 
-	fn redacts(&self) -> Option<&Self::Id> { (*self).redacts() }
+	fn redacts(&self) -> Option<&EventId> { (*self).redacts() }
 }

src/core/matrix/pdu.rs

@@ -79,9 +79,7 @@ impl Pdu {
 }
 
 impl Event for Pdu {
-	type Id = OwnedEventId;
-
-	fn event_id(&self) -> &Self::Id { &self.event_id }
+	fn event_id(&self) -> &EventId { &self.event_id }
 
 	fn room_id(&self) -> &RoomId { &self.room_id }
 
@@ -97,15 +95,15 @@ impl Event for Pdu {
 
 	fn state_key(&self) -> Option<&str> { self.state_key.as_deref() }
 
-	fn prev_events(&self) -> impl DoubleEndedIterator<Item = &Self::Id> + Send + '_ {
-		self.prev_events.iter()
+	fn prev_events(&self) -> impl DoubleEndedIterator<Item = &EventId> + Send + '_ {
+		self.prev_events.iter().map(AsRef::as_ref)
 	}
 
-	fn auth_events(&self) -> impl DoubleEndedIterator<Item = &Self::Id> + Send + '_ {
-		self.auth_events.iter()
+	fn auth_events(&self) -> impl DoubleEndedIterator<Item = &EventId> + Send + '_ {
+		self.auth_events.iter().map(AsRef::as_ref)
 	}
 
-	fn redacts(&self) -> Option<&Self::Id> { self.redacts.as_ref() }
+	fn redacts(&self) -> Option<&EventId> { self.redacts.as_deref() }
 }
 
 /// Prevent derived equality which wouldn't limit itself to event_id

src/core/matrix/pdu/strip.rs

@@ -1,8 +1,8 @@
 use ruma::{
 	events::{
-		AnyEphemeralRoomEvent, AnyMessageLikeEvent, AnyStateEvent, AnyStrippedStateEvent,
-		AnySyncStateEvent, AnySyncTimelineEvent, AnyTimelineEvent, StateEvent,
-		room::member::RoomMemberEventContent, space::child::HierarchySpaceChildEvent,
+		AnyMessageLikeEvent, AnyStateEvent, AnyStrippedStateEvent, AnySyncStateEvent,
+		AnySyncTimelineEvent, AnyTimelineEvent, StateEvent, room::member::RoomMemberEventContent,
+		space::child::HierarchySpaceChildEvent,
 	},
 	serde::Raw,
 };
@@ -10,41 +10,6 @@ use serde_json::{json, value::Value as JsonValue};
 
 use crate::implement;
 
-/// This only works for events that are also AnyRoomEvents.
-#[must_use]
-#[implement(super::Pdu)]
-pub fn into_any_event(self) -> Raw<AnyEphemeralRoomEvent> {
-	serde_json::from_value(self.into_any_event_value()).expect("Raw::from_value always works")
-}
-
-/// This only works for events that are also AnyRoomEvents.
-#[implement(super::Pdu)]
-#[must_use]
-#[inline]
-pub fn into_any_event_value(self) -> JsonValue {
-	let (redacts, content) = self.copy_redacts();
-	let mut json = json!({
-		"content": content,
-		"type": self.kind,
-		"event_id": self.event_id,
-		"sender": self.sender,
-		"origin_server_ts": self.origin_server_ts,
-		"room_id": self.room_id,
-	});
-
-	if let Some(unsigned) = &self.unsigned {
-		json["unsigned"] = json!(unsigned);
-	}
-	if let Some(state_key) = &self.state_key {
-		json["state_key"] = json!(state_key);
-	}
-	if let Some(redacts) = &redacts {
-		json["redacts"] = json!(redacts);
-	}
-
-	json
-}
-
 #[implement(super::Pdu)]
 #[must_use]
 #[inline]
@@ -53,7 +18,8 @@ pub fn into_room_event(self) -> Raw<AnyTimelineEvent> { self.to_room_event() }
 #[implement(super::Pdu)]
 #[must_use]
 pub fn to_room_event(&self) -> Raw<AnyTimelineEvent> {
-	serde_json::from_value(self.to_room_event_value()).expect("Raw::from_value always works")
+	let value = self.to_room_event_value();
+	serde_json::from_value(value).expect("Failed to serialize Event value")
 }
 
 #[implement(super::Pdu)]
@@ -91,8 +57,8 @@ pub fn into_message_like_event(self) -> Raw<AnyMessageLikeEvent> { self.to_messa
 #[implement(super::Pdu)]
 #[must_use]
 pub fn to_message_like_event(&self) -> Raw<AnyMessageLikeEvent> {
-	serde_json::from_value(self.to_message_like_event_value())
-		.expect("Raw::from_value always works")
+	let value = self.to_message_like_event_value();
+	serde_json::from_value(value).expect("Failed to serialize Event value")
 }
 
 #[implement(super::Pdu)]
@@ -130,7 +96,8 @@ pub fn into_sync_room_event(self) -> Raw<AnySyncTimelineEvent> { self.to_sync_ro
 #[implement(super::Pdu)]
 #[must_use]
 pub fn to_sync_room_event(&self) -> Raw<AnySyncTimelineEvent> {
-	serde_json::from_value(self.to_sync_room_event_value()).expect("Raw::from_value always works")
+	let value = self.to_sync_room_event_value();
+	serde_json::from_value(value).expect("Failed to serialize Event value")
 }
 
 #[implement(super::Pdu)]
@@ -162,7 +129,8 @@ pub fn to_sync_room_event_value(&self) -> JsonValue {
 #[implement(super::Pdu)]
 #[must_use]
 pub fn into_state_event(self) -> Raw<AnyStateEvent> {
-	serde_json::from_value(self.into_state_event_value()).expect("Raw::from_value always works")
+	let value = self.into_state_event_value();
+	serde_json::from_value(value).expect("Failed to serialize Event value")
 }
 
 #[implement(super::Pdu)]
@@ -189,8 +157,8 @@ pub fn into_state_event_value(self) -> JsonValue {
 #[implement(super::Pdu)]
 #[must_use]
 pub fn into_sync_state_event(self) -> Raw<AnySyncStateEvent> {
-	serde_json::from_value(self.into_sync_state_event_value())
-		.expect("Raw::from_value always works")
+	let value = self.into_sync_state_event_value();
+	serde_json::from_value(value).expect("Failed to serialize Event value")
 }
 
 #[implement(super::Pdu)]
@@ -223,8 +191,8 @@ pub fn into_stripped_state_event(self) -> Raw<AnyStrippedStateEvent> {
 #[implement(super::Pdu)]
 #[must_use]
 pub fn to_stripped_state_event(&self) -> Raw<AnyStrippedStateEvent> {
-	serde_json::from_value(self.to_stripped_state_event_value())
-		.expect("Raw::from_value always works")
+	let value = self.to_stripped_state_event_value();
+	serde_json::from_value(value).expect("Failed to serialize Event value")
 }
 
 #[implement(super::Pdu)]
@@ -242,8 +210,8 @@ pub fn to_stripped_state_event_value(&self) -> JsonValue {
 #[implement(super::Pdu)]
 #[must_use]
 pub fn into_stripped_spacechild_state_event(self) -> Raw<HierarchySpaceChildEvent> {
-	serde_json::from_value(self.into_stripped_spacechild_state_event_value())
-		.expect("Raw::from_value always works")
+	let value = self.into_stripped_spacechild_state_event_value();
+	serde_json::from_value(value).expect("Failed to serialize Event value")
 }
 
 #[implement(super::Pdu)]
@@ -262,7 +230,8 @@ pub fn into_stripped_spacechild_state_event_value(self) -> JsonValue {
 #[implement(super::Pdu)]
 #[must_use]
 pub fn into_member_event(self) -> Raw<StateEvent<RoomMemberEventContent>> {
-	serde_json::from_value(self.into_member_event_value()).expect("Raw::from_value always works")
+	let value = self.into_member_event_value();
+	serde_json::from_value(value).expect("Failed to serialize Event value")
 }
 
 #[implement(super::Pdu)]

src/core/matrix/state_res/benches.rs

@@ -52,7 +52,6 @@ fn lexico_topo_sort(c: &mut test::Bencher) {
 #[cfg(conduwuit_bench)]
 #[cfg_attr(conduwuit_bench, bench)]
 fn resolution_shallow_auth_chain(c: &mut test::Bencher) {
-	let parallel_fetches = 32;
 	let mut store = TestStore(hashmap! {});
 
 	// build up the DAG
@@ -78,7 +77,6 @@ fn resolution_shallow_auth_chain(c: &mut test::Bencher) {
 			&auth_chain_sets,
 			&fetch,
 			&exists,
-			parallel_fetches,
 		)
 		.await
 		{
@@ -91,7 +89,6 @@ fn resolution_shallow_auth_chain(c: &mut test::Bencher) {
 #[cfg(conduwuit_bench)]
 #[cfg_attr(conduwuit_bench, bench)]
 fn resolve_deeper_event_set(c: &mut test::Bencher) {
-	let parallel_fetches = 32;
 	let mut inner = INITIAL_EVENTS();
 	let ban = BAN_STATE_SET();
 
@@ -153,7 +150,6 @@ fn resolve_deeper_event_set(c: &mut test::Bencher) {
 			&auth_chain_sets,
 			&fetch,
 			&exists,
-			parallel_fetches,
 		)
 		.await
 		{
@@ -190,7 +186,11 @@ impl<E: Event + Clone> TestStore<E> {
 	}
 
 	/// Returns a Vec of the related auth events to the given `event`.
-	fn auth_event_ids(&self, room_id: &RoomId, event_ids: Vec<E::Id>) -> Result<HashSet<E::Id>> {
+	fn auth_event_ids(
+		&self,
+		room_id: &RoomId,
+		event_ids: Vec<OwnedEventId>,
+	) -> Result<HashSet<OwnedEventId>> {
 		let mut result = HashSet::new();
 		let mut stack = event_ids;
 
@@ -216,8 +216,8 @@ impl<E: Event + Clone> TestStore<E> {
 	fn auth_chain_diff(
 		&self,
 		room_id: &RoomId,
-		event_ids: Vec<Vec<E::Id>>,
-	) -> Result<Vec<E::Id>> {
+		event_ids: Vec<Vec<OwnedEventId>>,
+	) -> Result<Vec<OwnedEventId>> {
 		let mut auth_chain_sets = vec![];
 		for ids in event_ids {
 			// TODO state store `auth_event_ids` returns self in the event ids list
@@ -238,7 +238,7 @@ impl<E: Event + Clone> TestStore<E> {
 			Ok(auth_chain_sets
 				.into_iter()
 				.flatten()
-				.filter(|id| !common.contains(id.borrow()))
+				.filter(|id| !common.contains(id))
 				.collect())
 		} else {
 			Ok(vec![])
@@ -565,7 +565,7 @@ impl EventTypeExt for &TimelineEventType {
 
 mod event {
 	use ruma::{
-		MilliSecondsSinceUnixEpoch, OwnedEventId, RoomId, UserId,
+		EventId, MilliSecondsSinceUnixEpoch, OwnedEventId, RoomId, UserId,
 		events::{TimelineEventType, pdu::Pdu},
 	};
 	use serde::{Deserialize, Serialize};
@@ -574,9 +574,7 @@ mod event {
 	use super::Event;
 
 	impl Event for PduEvent {
-		type Id = OwnedEventId;
-
-		fn event_id(&self) -> &Self::Id { &self.event_id }
+		fn event_id(&self) -> &EventId { &self.event_id }
 
 		fn room_id(&self) -> &RoomId {
 			match &self.rest {
@@ -632,28 +630,30 @@ mod event {
 			}
 		}
 
-		fn prev_events(&self) -> Box<dyn DoubleEndedIterator<Item = &Self::Id> + Send + '_> {
+		fn prev_events(&self) -> Box<dyn DoubleEndedIterator<Item = &EventId> + Send + '_> {
 			match &self.rest {
-				| Pdu::RoomV1Pdu(ev) => Box::new(ev.prev_events.iter().map(|(id, _)| id)),
-				| Pdu::RoomV3Pdu(ev) => Box::new(ev.prev_events.iter()),
+				| Pdu::RoomV1Pdu(ev) =>
+					Box::new(ev.prev_events.iter().map(|(id, _)| id.as_ref())),
+				| Pdu::RoomV3Pdu(ev) => Box::new(ev.prev_events.iter().map(AsRef::as_ref)),
 				#[cfg(not(feature = "unstable-exhaustive-types"))]
 				| _ => unreachable!("new PDU version"),
 			}
 		}
 
-		fn auth_events(&self) -> Box<dyn DoubleEndedIterator<Item = &Self::Id> + Send + '_> {
+		fn auth_events(&self) -> Box<dyn DoubleEndedIterator<Item = &EventId> + Send + '_> {
 			match &self.rest {
-				| Pdu::RoomV1Pdu(ev) => Box::new(ev.auth_events.iter().map(|(id, _)| id)),
-				| Pdu::RoomV3Pdu(ev) => Box::new(ev.auth_events.iter()),
+				| Pdu::RoomV1Pdu(ev) =>
+					Box::new(ev.auth_events.iter().map(|(id, _)| id.as_ref())),
+				| Pdu::RoomV3Pdu(ev) => Box::new(ev.auth_events.iter().map(AsRef::as_ref)),
 				#[cfg(not(feature = "unstable-exhaustive-types"))]
 				| _ => unreachable!("new PDU version"),
 			}
 		}
 
-		fn redacts(&self) -> Option<&Self::Id> {
+		fn redacts(&self) -> Option<&EventId> {
 			match &self.rest {
-				| Pdu::RoomV1Pdu(ev) => ev.redacts.as_ref(),
-				| Pdu::RoomV3Pdu(ev) => ev.redacts.as_ref(),
+				| Pdu::RoomV1Pdu(ev) => ev.redacts.as_deref(),
+				| Pdu::RoomV3Pdu(ev) => ev.redacts.as_deref(),
 				#[cfg(not(feature = "unstable-exhaustive-types"))]
 				| _ => unreachable!("new PDU version"),
 			}

src/core/matrix/state_res/event_auth.rs

@@ -133,7 +133,7 @@ pub fn auth_types_for_event(
 	level = "debug",
 	skip_all,
 	fields(
-		event_id = incoming_event.event_id().borrow().as_str()
+		event_id = incoming_event.event_id().as_str(),
 	)
 )]
 pub async fn auth_check<F, Fut, Fetched, Incoming>(
@@ -259,7 +259,7 @@ where
 	// 3. If event does not have m.room.create in auth_events reject
 	if !incoming_event
 		.auth_events()
-		.any(|id| id.borrow() == room_create_event.event_id().borrow())
+		.any(|id| id == room_create_event.event_id())
 	{
 		warn!("no m.room.create event in auth events");
 		return Ok(false);
@@ -1021,11 +1021,11 @@ fn check_redaction(
 
 	// If the domain of the event_id of the event being redacted is the same as the
 	// domain of the event_id of the m.room.redaction, allow
-	if redaction_event.event_id().borrow().server_name()
+	if redaction_event.event_id().server_name()
 		== redaction_event
 			.redacts()
 			.as_ref()
-			.and_then(|&id| id.borrow().server_name())
+			.and_then(|&id| id.server_name())
 	{
 		debug!("redaction event allowed via room version 1 rules");
 		return Ok(true);

src/core/matrix/state_res/mod.rs

@@ -20,7 +20,7 @@ use std::{
 
 use futures::{Future, FutureExt, Stream, StreamExt, TryFutureExt, TryStreamExt, future};
 use ruma::{
-	EventId, Int, MilliSecondsSinceUnixEpoch, RoomVersionId,
+	EventId, Int, MilliSecondsSinceUnixEpoch, OwnedEventId, RoomVersionId,
 	events::{
 		StateEventType, TimelineEventType,
 		room::member::{MembershipState, RoomMemberEventContent},
@@ -39,9 +39,7 @@ use crate::{
 	debug, debug_error,
 	matrix::{event::Event, pdu::StateKey},
 	trace,
-	utils::stream::{
-		BroadbandExt, IterStream, ReadyExt, TryBroadbandExt, TryReadyExt, WidebandExt,
-	},
+	utils::stream::{BroadbandExt, IterStream, ReadyExt, TryBroadbandExt, WidebandExt},
 	warn,
 };
 
@@ -69,9 +67,6 @@ type Result<T, E = Error> = crate::Result<T, E>;
 /// * `event_fetch` - Any event not found in the `event_map` will defer to this
 ///   closure to find the event.
 ///
-/// * `parallel_fetches` - The number of asynchronous fetch requests in-flight
-///   for any given operation.
-///
 /// ## Invariants
 ///
 /// The caller of `resolve` must ensure that all the events are from the same
@@ -82,21 +77,19 @@ type Result<T, E = Error> = crate::Result<T, E>;
 pub async fn resolve<'a, E, Sets, SetIter, Hasher, Fetch, FetchFut, Exists, ExistsFut>(
 	room_version: &RoomVersionId,
 	state_sets: Sets,
-	auth_chain_sets: &'a [HashSet<E::Id, Hasher>],
+	auth_chain_sets: &'a [HashSet<OwnedEventId, Hasher>],
 	event_fetch: &Fetch,
 	event_exists: &Exists,
-	parallel_fetches: usize,
-) -> Result<StateMap<E::Id>>
+) -> Result<StateMap<OwnedEventId>>
 where
-	Fetch: Fn(E::Id) -> FetchFut + Sync,
+	Fetch: Fn(OwnedEventId) -> FetchFut + Sync,
 	FetchFut: Future<Output = Option<E>> + Send,
-	Exists: Fn(E::Id) -> ExistsFut + Sync,
+	Exists: Fn(OwnedEventId) -> ExistsFut + Sync,
 	ExistsFut: Future<Output = bool> + Send,
 	Sets: IntoIterator<IntoIter = SetIter> + Send,
-	SetIter: Iterator<Item = &'a StateMap<E::Id>> + Clone + Send,
+	SetIter: Iterator<Item = &'a StateMap<OwnedEventId>> + Clone + Send,
 	Hasher: BuildHasher + Send + Sync,
 	E: Event + Clone + Send + Sync,
-	E::Id: Borrow<EventId> + Send + Sync,
 	for<'b> &'b E: Send,
 {
 	debug!("State resolution starting");
@@ -147,13 +140,8 @@ where
 
 	// Sort the control events based on power_level/clock/event_id and
 	// outgoing/incoming edges
-	let sorted_control_levels = reverse_topological_power_sort(
-		control_events,
-		&all_conflicted,
-		&event_fetch,
-		parallel_fetches,
-	)
-	.await?;
+	let sorted_control_levels =
+		reverse_topological_power_sort(control_events, &all_conflicted, &event_fetch).await?;
 
 	debug!(count = sorted_control_levels.len(), "power events");
 	trace!(list = ?sorted_control_levels, "sorted power events");
@@ -162,7 +150,7 @@ where
 	// Sequentially auth check each control event.
 	let resolved_control = iterative_auth_check(
 		&room_version,
-		sorted_control_levels.iter().stream(),
+		sorted_control_levels.iter().stream().map(AsRef::as_ref),
 		clean.clone(),
 		&event_fetch,
 	)
@@ -179,7 +167,7 @@ where
 	// that failed auth
 	let events_to_resolve: Vec<_> = all_conflicted
 		.iter()
-		.filter(|&id| !deduped_power_ev.contains(id.borrow()))
+		.filter(|&id| !deduped_power_ev.contains(id))
 		.cloned()
 		.collect();
 
@@ -199,7 +187,7 @@ where
 
 	let mut resolved_state = iterative_auth_check(
 		&room_version,
-		sorted_left_events.iter().stream(),
+		sorted_left_events.iter().stream().map(AsRef::as_ref),
 		resolved_control, // The control events are added to the final resolved state
 		&event_fetch,
 	)
@@ -292,16 +280,14 @@ where
 /// earlier (further back in time) origin server timestamp.
 #[tracing::instrument(level = "debug", skip_all)]
 async fn reverse_topological_power_sort<E, F, Fut>(
-	events_to_sort: Vec<E::Id>,
-	auth_diff: &HashSet<E::Id>,
+	events_to_sort: Vec<OwnedEventId>,
+	auth_diff: &HashSet<OwnedEventId>,
 	fetch_event: &F,
-	parallel_fetches: usize,
-) -> Result<Vec<E::Id>>
+) -> Result<Vec<OwnedEventId>>
 where
-	F: Fn(E::Id) -> Fut + Sync,
+	F: Fn(OwnedEventId) -> Fut + Sync,
 	Fut: Future<Output = Option<E>> + Send,
 	E: Event + Send + Sync,
-	E::Id: Borrow<EventId> + Send + Sync,
 {
 	debug!("reverse topological sort of power events");
 
@@ -311,35 +297,36 @@ where
 	}
 
 	// This is used in the `key_fn` passed to the lexico_topo_sort fn
-	let event_to_pl = graph
+	let event_to_pl: HashMap<_, _> = graph
 		.keys()
+		.cloned()
 		.stream()
-		.map(|event_id| {
-			get_power_level_for_sender(event_id.clone(), fetch_event)
-				.map(move |res| res.map(|pl| (event_id, pl)))
+		.broad_filter_map(async |event_id| {
+			let pl = get_power_level_for_sender(&event_id, fetch_event)
+				.await
+				.ok()?;
+			Some((event_id, pl))
 		})
-		.buffer_unordered(parallel_fetches)
-		.ready_try_fold(HashMap::new(), |mut event_to_pl, (event_id, pl)| {
+		.inspect(|(event_id, pl)| {
 			debug!(
-				event_id = event_id.borrow().as_str(),
-				power_level = i64::from(pl),
+				event_id = event_id.as_str(),
+				power_level = i64::from(*pl),
 				"found the power level of an event's sender",
 			);
-
-			event_to_pl.insert(event_id.clone(), pl);
-			Ok(event_to_pl)
 		})
+		.collect()
 		.boxed()
-		.await?;
+		.await;
 
-	let event_to_pl = &event_to_pl;
-	let fetcher = |event_id: E::Id| async move {
+	let fetcher = async |event_id: OwnedEventId| {
 		let pl = *event_to_pl
-			.get(event_id.borrow())
+			.get(&event_id)
 			.ok_or_else(|| Error::NotFound(String::new()))?;
+
 		let ev = fetch_event(event_id)
 			.await
 			.ok_or_else(|| Error::NotFound(String::new()))?;
+
 		Ok((pl, ev.origin_server_ts()))
 	};
 
@@ -476,18 +463,17 @@ where
 /// the eventId at the eventId's generation (we walk backwards to `EventId`s
 /// most recent previous power level event).
 async fn get_power_level_for_sender<E, F, Fut>(
-	event_id: E::Id,
+	event_id: &EventId,
 	fetch_event: &F,
 ) -> serde_json::Result<Int>
 where
-	F: Fn(E::Id) -> Fut + Sync,
+	F: Fn(OwnedEventId) -> Fut + Sync,
 	Fut: Future<Output = Option<E>> + Send,
 	E: Event + Send,
-	E::Id: Borrow<EventId> + Send,
 {
 	debug!("fetch event ({event_id}) senders power level");
 
-	let event = fetch_event(event_id).await;
+	let event = fetch_event(event_id.to_owned()).await;
 
 	let auth_events = event.as_ref().map(Event::auth_events);
 
@@ -495,7 +481,7 @@ where
 		.into_iter()
 		.flatten()
 		.stream()
-		.broadn_filter_map(5, |aid| fetch_event(aid.clone()))
+		.broadn_filter_map(5, |aid| fetch_event(aid.to_owned()))
 		.ready_find(|aev| is_type_and_key(aev, &TimelineEventType::RoomPowerLevels, ""))
 		.await;
 
@@ -528,14 +514,13 @@ where
 async fn iterative_auth_check<'a, E, F, Fut, S>(
 	room_version: &RoomVersion,
 	events_to_check: S,
-	unconflicted_state: StateMap<E::Id>,
+	unconflicted_state: StateMap<OwnedEventId>,
 	fetch_event: &F,
-) -> Result<StateMap<E::Id>>
+) -> Result<StateMap<OwnedEventId>>
 where
-	F: Fn(E::Id) -> Fut + Sync,
+	F: Fn(OwnedEventId) -> Fut + Sync,
 	Fut: Future<Output = Option<E>> + Send,
-	E::Id: Borrow<EventId> + Clone + Eq + Ord + Send + Sync + 'a,
-	S: Stream<Item = &'a E::Id> + Send + 'a,
+	S: Stream<Item = &'a EventId> + Send + 'a,
 	E: Event + Clone + Send + Sync,
 {
 	debug!("starting iterative auth check");
@@ -543,7 +528,7 @@ where
 	let events_to_check: Vec<_> = events_to_check
 		.map(Result::Ok)
 		.broad_and_then(async |event_id| {
-			fetch_event(event_id.clone())
+			fetch_event(event_id.to_owned())
 				.await
 				.ok_or_else(|| Error::NotFound(format!("Failed to find {event_id}")))
 		})
@@ -551,16 +536,16 @@ where
 		.boxed()
 		.await?;
 
-	let auth_event_ids: HashSet<E::Id> = events_to_check
+	let auth_event_ids: HashSet<OwnedEventId> = events_to_check
 		.iter()
-		.flat_map(|event: &E| event.auth_events().map(Clone::clone))
+		.flat_map(|event: &E| event.auth_events().map(ToOwned::to_owned))
 		.collect();
 
-	let auth_events: HashMap<E::Id, E> = auth_event_ids
+	let auth_events: HashMap<OwnedEventId, E> = auth_event_ids
 		.into_iter()
 		.stream()
 		.broad_filter_map(fetch_event)
-		.map(|auth_event| (auth_event.event_id().clone(), auth_event))
+		.map(|auth_event| (auth_event.event_id().to_owned(), auth_event))
 		.collect()
 		.boxed()
 		.await;
@@ -581,7 +566,7 @@ where
 
 		let mut auth_state = StateMap::new();
 		for aid in event.auth_events() {
-			if let Some(ev) = auth_events.get(aid.borrow()) {
+			if let Some(ev) = auth_events.get(aid) {
 				//TODO: synapse checks "rejected_reason" which is most likely related to
 				// soft-failing
 				auth_state.insert(
@@ -592,7 +577,7 @@ where
 					ev.clone(),
 				);
 			} else {
-				warn!(event_id = aid.borrow().as_str(), "missing auth event");
+				warn!(event_id = aid.as_str(), "missing auth event");
 			}
 		}
 
@@ -601,7 +586,7 @@ where
 			.stream()
 			.ready_filter_map(|key| Some((key, resolved_state.get(key)?)))
 			.filter_map(|(key, ev_id)| async move {
-				if let Some(event) = auth_events.get(ev_id.borrow()) {
+				if let Some(event) = auth_events.get(ev_id) {
 					Some((key, event.clone()))
 				} else {
 					Some((key, fetch_event(ev_id.clone()).await?))
@@ -633,7 +618,7 @@ where
 				// add event to resolved state map
 				resolved_state.insert(
 					event.event_type().with_state_key(state_key),
-					event.event_id().clone(),
+					event.event_id().to_owned(),
 				);
 			},
 			| Ok(false) => {
@@ -660,15 +645,14 @@ where
 /// level as a parent) will be marked as depth 1. depth 1 is "older" than depth
 /// 0.
 async fn mainline_sort<E, F, Fut>(
-	to_sort: &[E::Id],
-	resolved_power_level: Option<E::Id>,
+	to_sort: &[OwnedEventId],
+	resolved_power_level: Option<OwnedEventId>,
 	fetch_event: &F,
-) -> Result<Vec<E::Id>>
+) -> Result<Vec<OwnedEventId>>
 where
-	F: Fn(E::Id) -> Fut + Sync,
+	F: Fn(OwnedEventId) -> Fut + Sync,
 	Fut: Future<Output = Option<E>> + Send,
 	E: Event + Clone + Send + Sync,
-	E::Id: Borrow<EventId> + Clone + Send + Sync,
 {
 	debug!("mainline sort of events");
 
@@ -688,7 +672,7 @@ where
 
 		pl = None;
 		for aid in event.auth_events() {
-			let ev = fetch_event(aid.clone())
+			let ev = fetch_event(aid.to_owned())
 				.await
 				.ok_or_else(|| Error::NotFound(format!("Failed to find {aid}")))?;
 
@@ -734,26 +718,25 @@ where
 /// that has an associated mainline depth.
 async fn get_mainline_depth<E, F, Fut>(
 	mut event: Option<E>,
-	mainline_map: &HashMap<E::Id, usize>,
+	mainline_map: &HashMap<OwnedEventId, usize>,
 	fetch_event: &F,
 ) -> Result<usize>
 where
-	F: Fn(E::Id) -> Fut + Sync,
+	F: Fn(OwnedEventId) -> Fut + Sync,
 	Fut: Future<Output = Option<E>> + Send,
 	E: Event + Send + Sync,
-	E::Id: Borrow<EventId> + Send + Sync,
 {
 	while let Some(sort_ev) = event {
-		debug!(event_id = sort_ev.event_id().borrow().as_str(), "mainline");
+		debug!(event_id = sort_ev.event_id().as_str(), "mainline");
 
 		let id = sort_ev.event_id();
-		if let Some(depth) = mainline_map.get(id.borrow()) {
+		if let Some(depth) = mainline_map.get(id) {
 			return Ok(*depth);
 		}
 
 		event = None;
 		for aid in sort_ev.auth_events() {
-			let aev = fetch_event(aid.clone())
+			let aev = fetch_event(aid.to_owned())
 				.await
 				.ok_or_else(|| Error::NotFound(format!("Failed to find {aid}")))?;
 
@@ -768,15 +751,14 @@ where
 }
 
 async fn add_event_and_auth_chain_to_graph<E, F, Fut>(
-	graph: &mut HashMap<E::Id, HashSet<E::Id>>,
-	event_id: E::Id,
-	auth_diff: &HashSet<E::Id>,
+	graph: &mut HashMap<OwnedEventId, HashSet<OwnedEventId>>,
+	event_id: OwnedEventId,
+	auth_diff: &HashSet<OwnedEventId>,
 	fetch_event: &F,
 ) where
-	F: Fn(E::Id) -> Fut + Sync,
+	F: Fn(OwnedEventId) -> Fut + Sync,
 	Fut: Future<Output = Option<E>> + Send,
 	E: Event + Send + Sync,
-	E::Id: Borrow<EventId> + Clone + Send + Sync,
 {
 	let mut state = vec![event_id];
 	while let Some(eid) = state.pop() {
@@ -786,26 +768,27 @@ async fn add_event_and_auth_chain_to_graph<E, F, Fut>(
 
 		// Prefer the store to event as the store filters dedups the events
 		for aid in auth_events {
-			if auth_diff.contains(aid.borrow()) {
-				if !graph.contains_key(aid.borrow()) {
+			if auth_diff.contains(aid) {
+				if !graph.contains_key(aid) {
 					state.push(aid.to_owned());
 				}
 
-				// We just inserted this at the start of the while loop
-				graph.get_mut(eid.borrow()).unwrap().insert(aid.to_owned());
+				graph
+					.get_mut(&eid)
+					.expect("We just inserted this at the start of the while loop")
+					.insert(aid.to_owned());
 			}
 		}
 	}
 }
 
-async fn is_power_event_id<E, F, Fut>(event_id: &E::Id, fetch: &F) -> bool
+async fn is_power_event_id<E, F, Fut>(event_id: &EventId, fetch: &F) -> bool
 where
-	F: Fn(E::Id) -> Fut + Sync,
+	F: Fn(OwnedEventId) -> Fut + Sync,
 	Fut: Future<Output = Option<E>> + Send,
 	E: Event + Send,
-	E::Id: Borrow<EventId> + Send + Sync,
 {
-	match fetch(event_id.clone()).await.as_ref() {
+	match fetch(event_id.to_owned()).await.as_ref() {
 		| Some(state) => is_power_event(state),
 		| _ => false,
 	}
@@ -909,13 +892,13 @@ mod tests {
 
 		let fetcher = |id| ready(events.get(&id).cloned());
 		let sorted_power_events =
-			super::reverse_topological_power_sort(power_events, &auth_chain, &fetcher, 1)
+			super::reverse_topological_power_sort(power_events, &auth_chain, &fetcher)
 				.await
 				.unwrap();
 
 		let resolved_power = super::iterative_auth_check(
 			&RoomVersion::V6,
-			sorted_power_events.iter().stream(),
+			sorted_power_events.iter().map(AsRef::as_ref).stream(),
 			HashMap::new(), // unconflicted events
 			&fetcher,
 		)
@@ -1300,7 +1283,7 @@ mod tests {
 		let ev_map = store.0.clone();
 		let fetcher = |id| ready(ev_map.get(&id).cloned());
 
-		let exists = |id: <PduEvent as Event>::Id| ready(ev_map.get(&*id).is_some());
+		let exists = |id: OwnedEventId| ready(ev_map.get(&*id).is_some());
 
 		let state_sets = [state_at_bob, state_at_charlie];
 		let auth_chain: Vec<_> = state_sets
@@ -1312,19 +1295,13 @@ mod tests {
 			})
 			.collect();
 
-		let resolved = match super::resolve(
-			&RoomVersionId::V2,
-			&state_sets,
-			&auth_chain,
-			&fetcher,
-			&exists,
-			1,
-		)
-		.await
-		{
-			| Ok(state) => state,
-			| Err(e) => panic!("{e}"),
-		};
+		let resolved =
+			match super::resolve(&RoomVersionId::V2, &state_sets, &auth_chain, &fetcher, &exists)
+				.await
+			{
+				| Ok(state) => state,
+				| Err(e) => panic!("{e}"),
+			};
 
 		assert_eq!(expected, resolved);
 	}
@@ -1429,21 +1406,15 @@ mod tests {
 			})
 			.collect();
 
-		let fetcher = |id: <PduEvent as Event>::Id| ready(ev_map.get(&id).cloned());
-		let exists = |id: <PduEvent as Event>::Id| ready(ev_map.get(&id).is_some());
-		let resolved = match super::resolve(
-			&RoomVersionId::V6,
-			&state_sets,
-			&auth_chain,
-			&fetcher,
-			&exists,
-			1,
-		)
-		.await
-		{
-			| Ok(state) => state,
-			| Err(e) => panic!("{e}"),
-		};
+		let fetcher = |id: OwnedEventId| ready(ev_map.get(&id).cloned());
+		let exists = |id: OwnedEventId| ready(ev_map.get(&id).is_some());
+		let resolved =
+			match super::resolve(&RoomVersionId::V6, &state_sets, &auth_chain, &fetcher, &exists)
+				.await
+			{
+				| Ok(state) => state,
+				| Err(e) => panic!("{e}"),
+			};
 
 		debug!(
 			resolved = ?resolved

src/core/matrix/state_res/test_utils.rs

@@ -133,17 +133,11 @@ pub(crate) async fn do_check(
 				.collect();
 
 			let event_map = &event_map;
-			let fetch = |id: <PduEvent as Event>::Id| ready(event_map.get(&id).cloned());
-			let exists = |id: <PduEvent as Event>::Id| ready(event_map.get(&id).is_some());
-			let resolved = super::resolve(
-				&RoomVersionId::V6,
-				state_sets,
-				&auth_chain_sets,
-				&fetch,
-				&exists,
-				1,
-			)
-			.await;
+			let fetch = |id: OwnedEventId| ready(event_map.get(&id).cloned());
+			let exists = |id: OwnedEventId| ready(event_map.get(&id).is_some());
+			let resolved =
+				super::resolve(&RoomVersionId::V6, state_sets, &auth_chain_sets, &fetch, &exists)
+					.await;
 
 			match resolved {
 				| Ok(state) => state,
@@ -247,8 +241,8 @@ impl<E: Event + Clone> TestStore<E> {
 	pub(crate) fn auth_event_ids(
 		&self,
 		room_id: &RoomId,
-		event_ids: Vec<E::Id>,
-	) -> Result<HashSet<E::Id>> {
+		event_ids: Vec<OwnedEventId>,
+	) -> Result<HashSet<OwnedEventId>> {
 		let mut result = HashSet::new();
 		let mut stack = event_ids;
 
@@ -584,7 +578,7 @@ pub(crate) fn INITIAL_EDGES() -> Vec<OwnedEventId> {
 
 pub(crate) mod event {
 	use ruma::{
-		MilliSecondsSinceUnixEpoch, OwnedEventId, RoomId, UserId,
+		EventId, MilliSecondsSinceUnixEpoch, OwnedEventId, RoomId, UserId,
 		events::{TimelineEventType, pdu::Pdu},
 	};
 	use serde::{Deserialize, Serialize};
@@ -593,9 +587,7 @@ pub(crate) mod event {
 	use crate::Event;
 
 	impl Event for PduEvent {
-		type Id = OwnedEventId;
-
-		fn event_id(&self) -> &Self::Id { &self.event_id }
+		fn event_id(&self) -> &EventId { &self.event_id }
 
 		fn room_id(&self) -> &RoomId {
 			match &self.rest {
@@ -652,29 +644,31 @@ pub(crate) mod event {
 		}
 
 		#[allow(refining_impl_trait)]
-		fn prev_events(&self) -> Box<dyn DoubleEndedIterator<Item = &Self::Id> + Send + '_> {
+		fn prev_events(&self) -> Box<dyn DoubleEndedIterator<Item = &EventId> + Send + '_> {
 			match &self.rest {
-				| Pdu::RoomV1Pdu(ev) => Box::new(ev.prev_events.iter().map(|(id, _)| id)),
-				| Pdu::RoomV3Pdu(ev) => Box::new(ev.prev_events.iter()),
+				| Pdu::RoomV1Pdu(ev) =>
+					Box::new(ev.prev_events.iter().map(|(id, _)| id.as_ref())),
+				| Pdu::RoomV3Pdu(ev) => Box::new(ev.prev_events.iter().map(AsRef::as_ref)),
 				#[allow(unreachable_patterns)]
 				| _ => unreachable!("new PDU version"),
 			}
 		}
 
 		#[allow(refining_impl_trait)]
-		fn auth_events(&self) -> Box<dyn DoubleEndedIterator<Item = &Self::Id> + Send + '_> {
+		fn auth_events(&self) -> Box<dyn DoubleEndedIterator<Item = &EventId> + Send + '_> {
 			match &self.rest {
-				| Pdu::RoomV1Pdu(ev) => Box::new(ev.auth_events.iter().map(|(id, _)| id)),
-				| Pdu::RoomV3Pdu(ev) => Box::new(ev.auth_events.iter()),
+				| Pdu::RoomV1Pdu(ev) =>
+					Box::new(ev.auth_events.iter().map(|(id, _)| id.as_ref())),
+				| Pdu::RoomV3Pdu(ev) => Box::new(ev.auth_events.iter().map(AsRef::as_ref)),
 				#[allow(unreachable_patterns)]
 				| _ => unreachable!("new PDU version"),
 			}
 		}
 
-		fn redacts(&self) -> Option<&Self::Id> {
+		fn redacts(&self) -> Option<&EventId> {
 			match &self.rest {
-				| Pdu::RoomV1Pdu(ev) => ev.redacts.as_ref(),
-				| Pdu::RoomV3Pdu(ev) => ev.redacts.as_ref(),
+				| Pdu::RoomV1Pdu(ev) => ev.redacts.as_deref(),
+				| Pdu::RoomV3Pdu(ev) => ev.redacts.as_deref(),
 				#[allow(unreachable_patterns)]
 				| _ => unreachable!("new PDU version"),
 			}

src/database/engine/cf_opts.rs

@@ -29,7 +29,7 @@ fn descriptor_cf_options(
 	set_table_options(&mut opts, &desc, cache)?;
 
 	opts.set_min_write_buffer_number(1);
-	opts.set_max_write_buffer_number(2);
+	opts.set_max_write_buffer_number(3);
 	opts.set_write_buffer_size(desc.write_size);
 
 	opts.set_target_file_size_base(desc.file_size);

src/main/runtime.rs

@@ -98,12 +98,7 @@ pub(super) fn shutdown(server: &Arc<Server>, runtime: tokio::runtime::Runtime) {
 		Level::INFO
 	};
 
-	debug!(
-		timeout = ?SHUTDOWN_TIMEOUT,
-		"Waiting for runtime..."
-	);
-
-	runtime.shutdown_timeout(SHUTDOWN_TIMEOUT);
+	wait_shutdown(server, runtime);
 	let runtime_metrics = server.server.metrics.runtime_interval().unwrap_or_default();
 
 	event!(LEVEL, ?runtime_metrics, "Final runtime metrics");
@@ -111,13 +106,23 @@ pub(super) fn shutdown(server: &Arc<Server>, runtime: tokio::runtime::Runtime) {
 
 #[cfg(not(tokio_unstable))]
 #[tracing::instrument(name = "stop", level = "info", skip_all)]
-pub(super) fn shutdown(_server: &Arc<Server>, runtime: tokio::runtime::Runtime) {
+pub(super) fn shutdown(server: &Arc<Server>, runtime: tokio::runtime::Runtime) {
+	wait_shutdown(server, runtime);
+}
+
+fn wait_shutdown(_server: &Arc<Server>, runtime: tokio::runtime::Runtime) {
 	debug!(
 		timeout = ?SHUTDOWN_TIMEOUT,
 		"Waiting for runtime..."
 	);
 
 	runtime.shutdown_timeout(SHUTDOWN_TIMEOUT);
+
+	// Join any jemalloc threads so they don't appear in use at exit.
+	#[cfg(all(not(target_env = "msvc"), feature = "jemalloc"))]
+	conduwuit_core::alloc::je::background_thread_enable(false)
+		.log_debug_err()
+		.ok();
 }
 
 #[tracing::instrument(

src/service/admin/mod.rs

@@ -4,7 +4,6 @@ mod execute;
 mod grant;
 
 use std::{
-	future::Future,
 	pin::Pin,
 	sync::{Arc, RwLock as StdRwLock, Weak},
 };
@@ -14,7 +13,7 @@ use conduwuit::{
 	Error, PduEvent, Result, Server, debug, err, error, error::default_log, pdu::PduBuilder,
 };
 pub use create::create_admin_room;
-use futures::{FutureExt, TryFutureExt};
+use futures::{Future, FutureExt, TryFutureExt};
 use loole::{Receiver, Sender};
 use ruma::{
 	OwnedEventId, OwnedRoomId, RoomId, UserId,

src/service/resolver/actual.rs

@@ -306,28 +306,25 @@ impl super::Service {
 
 	#[tracing::instrument(name = "srv", level = "debug", skip(self))]
 	async fn query_srv_record(&self, hostname: &'_ str) -> Result<Option<FedDest>> {
-		let hostnames =
-			[format!("_matrix-fed._tcp.{hostname}."), format!("_matrix._tcp.{hostname}.")];
+		self.services.server.check_running()?;
 
-		for hostname in hostnames {
-			self.services.server.check_running()?;
+		debug!("querying SRV for {hostname:?}");
 
-			debug!("querying SRV for {hostname:?}");
-			let hostname = hostname.trim_end_matches('.');
-			match self.resolver.resolver.srv_lookup(hostname).await {
-				| Err(e) => Self::handle_resolve_error(&e, hostname)?,
-				| Ok(result) => {
-					return Ok(result.iter().next().map(|result| {
-						FedDest::Named(
-							result.target().to_string().trim_end_matches('.').to_owned(),
-							format!(":{}", result.port())
-								.as_str()
-								.try_into()
-								.unwrap_or_else(|_| FedDest::default_port()),
-						)
-					}));
-				},
-			}
+		let hostname_suffix = format!("_matrix-fed._tcp.{hostname}.");
+		let hostname = hostname_suffix.trim_end_matches('.');
+		match self.resolver.resolver.srv_lookup(hostname).await {
+			| Err(e) => Self::handle_resolve_error(&e, hostname)?,
+			| Ok(result) => {
+				return Ok(result.iter().next().map(|result| {
+					FedDest::Named(
+						result.target().to_string().trim_end_matches('.').to_owned(),
+						format!(":{}", result.port())
+							.as_str()
+							.try_into()
+							.unwrap_or_else(|_| FedDest::default_port()),
+					)
+				}));
+			},
 		}
 
 		Ok(None)

src/service/rooms/event_handler/resolve_state.rs

@@ -8,7 +8,7 @@ use conduwuit::{
 	Error, Result, err, implement,
 	state_res::{self, StateMap},
 	trace,
-	utils::stream::{IterStream, ReadyExt, TryWidebandExt, WidebandExt, automatic_width},
+	utils::stream::{IterStream, ReadyExt, TryWidebandExt, WidebandExt},
 };
 use futures::{FutureExt, StreamExt, TryFutureExt, TryStreamExt, future::try_join};
 use ruma::{OwnedEventId, RoomId, RoomVersionId};
@@ -112,14 +112,7 @@ where
 {
 	let event_fetch = |event_id| self.event_fetch(event_id);
 	let event_exists = |event_id| self.event_exists(event_id);
-	state_res::resolve(
-		room_version,
-		state_sets,
-		auth_chain_sets,
-		&event_fetch,
-		&event_exists,
-		automatic_width(),
-	)
-	.map_err(|e| err!(error!("State resolution failed: {e:?}")))
-	.await
+	state_res::resolve(room_version, state_sets, auth_chain_sets, &event_fetch, &event_exists)
+		.map_err(|e| err!(error!("State resolution failed: {e:?}")))
+		.await
 }