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improvement: locks

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Timo Kösters 2021-07-13 15:44:25 +02:00
parent e15e6d4405
commit e12b1ff863
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GPG Key ID: 24DA7517711A2BA4
12 changed files with 321 additions and 54 deletions
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35
src/client_server/account.rs
View File

@ -1,4 +1,4 @@
use std::{collections::BTreeMap, convert::TryInto};
use std::{collections::BTreeMap, convert::TryInto, sync::Arc};
use super::{DEVICE_ID_LENGTH, SESSION_ID_LENGTH, TOKEN_LENGTH};
use crate::{database::DatabaseGuard, pdu::PduBuilder, utils, ConduitResult, Error, Ruma};
@ -238,6 +238,16 @@ pub async fn register_route(
let room_id = RoomId::new(db.globals.server_name());
let mutex = Arc::clone(
db.globals
.roomid_mutex
.write()
.unwrap()
.entry(room_id.clone())
.or_default(),
);
let mutex_lock = mutex.lock().await;
let mut content = ruma::events::room::create::CreateEventContent::new(conduit_user.clone());
content.federate = true;
content.predecessor = None;
@ -255,6 +265,7 @@ pub async fn register_route(
&conduit_user,
&room_id,
&db,
&mutex_lock,
)?;
// 2. Make conduit bot join
@ -276,6 +287,7 @@ pub async fn register_route(
&conduit_user,
&room_id,
&db,
&mutex_lock,
)?;
// 3. Power levels
@ -300,6 +312,7 @@ pub async fn register_route(
&conduit_user,
&room_id,
&db,
&mutex_lock,
)?;
// 4.1 Join Rules
@ -317,6 +330,7 @@ pub async fn register_route(
&conduit_user,
&room_id,
&db,
&mutex_lock,
)?;
// 4.2 History Visibility
@ -336,6 +350,7 @@ pub async fn register_route(
&conduit_user,
&room_id,
&db,
&mutex_lock,
)?;
// 4.3 Guest Access
@ -353,6 +368,7 @@ pub async fn register_route(
&conduit_user,
&room_id,
&db,
&mutex_lock,
)?;
// 6. Events implied by name and topic
@ -372,6 +388,7 @@ pub async fn register_route(
&conduit_user,
&room_id,
&db,
&mutex_lock,
)?;
db.rooms.build_and_append_pdu(
@ -388,6 +405,7 @@ pub async fn register_route(
&conduit_user,
&room_id,
&db,
&mutex_lock,
)?;
// Room alias
@ -410,6 +428,7 @@ pub async fn register_route(
&conduit_user,
&room_id,
&db,
&mutex_lock,
)?;
db.rooms.set_alias(&alias, Some(&room_id), &db.globals)?;
@ -433,6 +452,7 @@ pub async fn register_route(
&conduit_user,
&room_id,
&db,
&mutex_lock,
)?;
db.rooms.build_and_append_pdu(
PduBuilder {
@ -452,6 +472,7 @@ pub async fn register_route(
&user_id,
&room_id,
&db,
&mutex_lock,
)?;
// Send welcome message
@ -470,6 +491,7 @@ pub async fn register_route(
&conduit_user,
&room_id,
&db,
&mutex_lock,
)?;
}
@ -641,6 +663,16 @@ pub async fn deactivate_route(
third_party_invite: None,
};
let mutex = Arc::clone(
db.globals
.roomid_mutex
.write()
.unwrap()
.entry(room_id.clone())
.or_default(),
);
let mutex_lock = mutex.lock().await;
db.rooms.build_and_append_pdu(
PduBuilder {
event_type: EventType::RoomMember,
@ -652,6 +684,7 @@ pub async fn deactivate_route(
&sender_user,
&room_id,
&db,
&mutex_lock,
)?;
}

78
src/client_server/membership.rs
View File

@ -203,6 +203,16 @@ pub async fn kick_user_route(
event.membership = ruma::events::room::member::MembershipState::Leave;
// TODO: reason
let mutex = Arc::clone(
db.globals
.roomid_mutex
.write()
.unwrap()
.entry(body.room_id.clone())
.or_default(),
);
let mutex_lock = mutex.lock().await;
db.rooms.build_and_append_pdu(
PduBuilder {
event_type: EventType::RoomMember,
@ -214,8 +224,11 @@ pub async fn kick_user_route(
&sender_user,
&body.room_id,
&db,
&mutex_lock,
)?;
drop(mutex_lock);
db.flush().await?;
Ok(kick_user::Response::new().into())
@ -261,6 +274,16 @@ pub async fn ban_user_route(
},
)?;
let mutex = Arc::clone(
db.globals
.roomid_mutex
.write()
.unwrap()
.entry(body.room_id.clone())
.or_default(),
);
let mutex_lock = mutex.lock().await;
db.rooms.build_and_append_pdu(
PduBuilder {
event_type: EventType::RoomMember,
@ -272,8 +295,11 @@ pub async fn ban_user_route(
&sender_user,
&body.room_id,
&db,
&mutex_lock,
)?;
drop(mutex_lock);
db.flush().await?;
Ok(ban_user::Response::new().into())
@ -310,6 +336,16 @@ pub async fn unban_user_route(
event.membership = ruma::events::room::member::MembershipState::Leave;
let mutex = Arc::clone(
db.globals
.roomid_mutex
.write()
.unwrap()
.entry(body.room_id.clone())
.or_default(),
);
let mutex_lock = mutex.lock().await;
db.rooms.build_and_append_pdu(
PduBuilder {
event_type: EventType::RoomMember,
@ -321,8 +357,11 @@ pub async fn unban_user_route(
&sender_user,
&body.room_id,
&db,
&mutex_lock,
)?;
drop(mutex_lock);
db.flush().await?;
Ok(unban_user::Response::new().into())
@ -446,6 +485,16 @@ async fn join_room_by_id_helper(
) -> ConduitResult<join_room_by_id::Response> {
let sender_user = sender_user.expect("user is authenticated");
let mutex = Arc::clone(
db.globals
.roomid_mutex
.write()
.unwrap()
.entry(room_id.clone())
.or_default(),
);
let mutex_lock = mutex.lock().await;
// Ask a remote server if we don't have this room
if !db.rooms.exists(&room_id)? && room_id.server_name() != db.globals.server_name() {
let mut make_join_response_and_server = Err(Error::BadServerResponse(
@ -649,9 +698,12 @@ async fn join_room_by_id_helper(
&sender_user,
&room_id,
&db,
&mutex_lock,
)?;
}
drop(mutex_lock);
db.flush().await?;
Ok(join_room_by_id::Response::new(room_id.clone()).into())
@ -721,13 +773,23 @@ async fn validate_and_add_event_id(
Ok((event_id, value))
}
pub async fn invite_helper(
pub async fn invite_helper<'a>(
sender_user: &UserId,
user_id: &UserId,
room_id: &RoomId,
db: &Database,
is_direct: bool,
) -> Result<()> {
let mutex = Arc::clone(
db.globals
.roomid_mutex
.write()
.unwrap()
.entry(room_id.clone())
.or_default(),
);
let mutex_lock = mutex.lock().await;
if user_id.server_name() != db.globals.server_name() {
let prev_events = db
.rooms
@ -863,6 +925,8 @@ pub async fn invite_helper(
)
.expect("event is valid, we just created it");
drop(mutex_lock);
let invite_room_state = db.rooms.calculate_invite_state(&pdu)?;
let response = db
.sending
@ -902,16 +966,6 @@ pub async fn invite_helper(
)
.map_err(|_| Error::BadRequest(ErrorKind::InvalidParam, "Origin field is invalid."))?;
let mutex = Arc::clone(
db.globals
.roomid_mutex
.write()
.unwrap()
.entry(room_id.clone())
.or_default(),
);
let mutex_lock = mutex.lock().await;
let pdu_id = server_server::handle_incoming_pdu(
&origin,
&event_id,
@ -932,7 +986,6 @@ pub async fn invite_helper(
ErrorKind::InvalidParam,
"Could not accept incoming PDU as timeline event.",
))?;
drop(mutex_lock);
for server in db
.rooms
@ -964,6 +1017,7 @@ pub async fn invite_helper(
&sender_user,
room_id,
&db,
&mutex_lock,
)?;
Ok(())

14
src/client_server/message.rs
View File

@ -10,6 +10,7 @@ use ruma::{
use std::{
collections::BTreeMap,
convert::{TryFrom, TryInto},
sync::Arc,
};
#[cfg(feature = "conduit_bin")]
@ -27,6 +28,16 @@ pub async fn send_message_event_route(
let sender_user = body.sender_user.as_ref().expect("user is authenticated");
let sender_device = body.sender_device.as_deref();
let mutex = Arc::clone(
db.globals
.roomid_mutex
.write()
.unwrap()
.entry(body.room_id.clone())
.or_default(),
);
let mutex_lock = mutex.lock().await;
// Check if this is a new transaction id
if let Some(response) =
db.transaction_ids
@ -64,6 +75,7 @@ pub async fn send_message_event_route(
&sender_user,
&body.room_id,
&db,
&mutex_lock,
)?;
db.transaction_ids.add_txnid(
@ -73,6 +85,8 @@ pub async fn send_message_event_route(
event_id.as_bytes(),
)?;
drop(mutex_lock);
db.flush().await?;
Ok(send_message_event::Response::new(event_id).into())

34
src/client_server/profile.rs
View File

@ -9,7 +9,7 @@ use ruma::{
events::EventType,
serde::Raw,
};
use std::convert::TryInto;
use std::{convert::TryInto, sync::Arc};
#[cfg(feature = "conduit_bin")]
use rocket::{get, put};
@ -69,9 +69,19 @@ pub async fn set_displayname_route(
})
.filter_map(|r| r.ok())
{
let _ = db
.rooms
.build_and_append_pdu(pdu_builder, &sender_user, &room_id, &db);
let mutex = Arc::clone(
db.globals
.roomid_mutex
.write()
.unwrap()
.entry(room_id.clone())
.or_default(),
);
let mutex_lock = mutex.lock().await;
let _ =
db.rooms
.build_and_append_pdu(pdu_builder, &sender_user, &room_id, &db, &mutex_lock);
// Presence update
db.rooms.edus.update_presence(
@ -171,9 +181,19 @@ pub async fn set_avatar_url_route(
})
.filter_map(|r| r.ok())
{
let _ = db
.rooms
.build_and_append_pdu(pdu_builder, &sender_user, &room_id, &db);
let mutex = Arc::clone(
db.globals
.roomid_mutex
.write()
.unwrap()
.entry(room_id.clone())
.or_default(),
);
let mutex_lock = mutex.lock().await;
let _ =
db.rooms
.build_and_append_pdu(pdu_builder, &sender_user, &room_id, &db, &mutex_lock);
// Presence update
db.rooms.edus.update_presence(

15
src/client_server/redact.rs
View File

@ -1,3 +1,5 @@
use std::sync::Arc;
use crate::{database::DatabaseGuard, pdu::PduBuilder, ConduitResult, Ruma};
use ruma::{
api::client::r0::redact::redact_event,
@ -18,6 +20,16 @@ pub async fn redact_event_route(
) -> ConduitResult<redact_event::Response> {
let sender_user = body.sender_user.as_ref().expect("user is authenticated");
let mutex = Arc::clone(
db.globals
.roomid_mutex
.write()
.unwrap()
.entry(body.room_id.clone())
.or_default(),
);
let mutex_lock = mutex.lock().await;
let event_id = db.rooms.build_and_append_pdu(
PduBuilder {
event_type: EventType::RoomRedaction,
@ -32,8 +44,11 @@ pub async fn redact_event_route(
&sender_user,
&body.room_id,
&db,
&mutex_lock,
)?;
drop(mutex_lock);
db.flush().await?;
Ok(redact_event::Response { event_id }.into())

40
src/client_server/room.rs
View File

@ -15,7 +15,7 @@ use ruma::{
serde::Raw,
RoomAliasId, RoomId, RoomVersionId,
};
use std::{cmp::max, collections::BTreeMap, convert::TryFrom};
use std::{cmp::max, collections::BTreeMap, convert::TryFrom, sync::Arc};
#[cfg(feature = "conduit_bin")]
use rocket::{get, post};
@ -33,6 +33,16 @@ pub async fn create_room_route(
let room_id = RoomId::new(db.globals.server_name());
let mutex = Arc::clone(
db.globals
.roomid_mutex
.write()
.unwrap()
.entry(room_id.clone())
.or_default(),
);
let mutex_lock = mutex.lock().await;
let alias = body
.room_alias_name
.as_ref()
@ -69,6 +79,7 @@ pub async fn create_room_route(
&sender_user,
&room_id,
&db,
&mutex_lock,
)?;
// 2. Let the room creator join
@ -90,6 +101,7 @@ pub async fn create_room_route(
&sender_user,
&room_id,
&db,
&mutex_lock,
)?;
// 3. Power levels
@ -144,6 +156,7 @@ pub async fn create_room_route(
&sender_user,
&room_id,
&db,
&mutex_lock,
)?;
// 4. Events set by preset
@ -170,6 +183,7 @@ pub async fn create_room_route(
&sender_user,
&room_id,
&db,
&mutex_lock,
)?;
// 4.2 History Visibility
@ -187,6 +201,7 @@ pub async fn create_room_route(
&sender_user,
&room_id,
&db,
&mutex_lock,
)?;
// 4.3 Guest Access
@ -212,6 +227,7 @@ pub async fn create_room_route(
&sender_user,
&room_id,
&db,
&mutex_lock,
)?;
// 5. Events listed in initial_state
@ -227,7 +243,7 @@ pub async fn create_room_route(
}
db.rooms
.build_and_append_pdu(pdu_builder, &sender_user, &room_id, &db)?;
.build_and_append_pdu(pdu_builder, &sender_user, &room_id, &db, &mutex_lock)?;
}
// 6. Events implied by name and topic
@ -248,6 +264,7 @@ pub async fn create_room_route(
&sender_user,
&room_id,
&db,
&mutex_lock,
)?;
}
@ -266,10 +283,12 @@ pub async fn create_room_route(
&sender_user,
&room_id,
&db,
&mutex_lock,
)?;
}
// 7. Events implied by invite (and TODO: invite_3pid)
drop(mutex_lock);
for user_id in &body.invite {
let _ = invite_helper(sender_user, user_id, &room_id, &db, body.is_direct).await;
}
@ -340,6 +359,16 @@ pub async fn upgrade_room_route(
// Create a replacement room
let replacement_room = RoomId::new(db.globals.server_name());
let mutex = Arc::clone(
db.globals
.roomid_mutex
.write()
.unwrap()
.entry(body.room_id.clone())
.or_default(),
);
let mutex_lock = mutex.lock().await;
// Send a m.room.tombstone event to the old room to indicate that it is not intended to be used any further
// Fail if the sender does not have the required permissions
let tombstone_event_id = db.rooms.build_and_append_pdu(
@ -357,6 +386,7 @@ pub async fn upgrade_room_route(
sender_user,
&body.room_id,
&db,
&mutex_lock,
)?;
// Get the old room federations status
@ -397,6 +427,7 @@ pub async fn upgrade_room_route(
sender_user,
&replacement_room,
&db,
&mutex_lock,
)?;
// Join the new room
@ -418,6 +449,7 @@ pub async fn upgrade_room_route(
sender_user,
&replacement_room,
&db,
&mutex_lock,
)?;
// Recommended transferable state events list from the specs
@ -451,6 +483,7 @@ pub async fn upgrade_room_route(
sender_user,
&replacement_room,
&db,
&mutex_lock,
)?;
}
@ -494,8 +527,11 @@ pub async fn upgrade_room_route(
sender_user,
&body.room_id,
&db,
&mutex_lock,
)?;
drop(mutex_lock);
db.flush().await?;
// Return the replacement room id

13
src/client_server/state.rs
View File

@ -1,3 +1,5 @@
use std::sync::Arc;
use crate::{
database::DatabaseGuard, pdu::PduBuilder, ConduitResult, Database, Error, Result, Ruma,
};
@ -257,6 +259,16 @@ pub async fn send_state_event_for_key_helper(
}
}
let mutex = Arc::clone(
db.globals
.roomid_mutex
.write()
.unwrap()
.entry(room_id.clone())
.or_default(),
);
let mutex_lock = mutex.lock().await;
let event_id = db.rooms.build_and_append_pdu(
PduBuilder {
event_type,
@ -268,6 +280,7 @@ pub async fn send_state_event_for_key_helper(
&sender_user,
&room_id,
&db,
&mutex_lock,
)?;
Ok(event_id)

38
src/client_server/sync.rs
View File

@ -189,6 +189,18 @@ async fn sync_helper(
for room_id in db.rooms.rooms_joined(&sender_user) {
let room_id = room_id?;
// Get and drop the lock to wait for remaining operations to finish
let mutex = Arc::clone(
db.globals
.roomid_mutex
.write()
.unwrap()
.entry(room_id.clone())
.or_default(),
);
let mutex_lock = mutex.lock().await;
drop(mutex_lock);
let mut non_timeline_pdus = db
.rooms
.pdus_until(&sender_user, &room_id, u64::MAX)
@ -641,6 +653,19 @@ async fn sync_helper(
let mut left_rooms = BTreeMap::new();
for result in db.rooms.rooms_left(&sender_user) {
let (room_id, left_state_events) = result?;
// Get and drop the lock to wait for remaining operations to finish
let mutex = Arc::clone(
db.globals
.roomid_mutex
.write()
.unwrap()
.entry(room_id.clone())
.or_default(),
);
let mutex_lock = mutex.lock().await;
drop(mutex_lock);
let left_count = db.rooms.get_left_count(&room_id, &sender_user)?;
// Left before last sync
@ -667,6 +692,19 @@ async fn sync_helper(
let mut invited_rooms = BTreeMap::new();
for result in db.rooms.rooms_invited(&sender_user) {
let (room_id, invite_state_events) = result?;
// Get and drop the lock to wait for remaining operations to finish
let mutex = Arc::clone(
db.globals
.roomid_mutex
.write()
.unwrap()
.entry(room_id.clone())
.or_default(),
);
let mutex_lock = mutex.lock().await;
drop(mutex_lock);
let invite_count = db.rooms.get_invite_count(&room_id, &sender_user)?;
// Invited before last sync

33
src/database/admin.rs
View File

@ -10,7 +10,7 @@ use ruma::{
events::{room::message, EventType},
UserId,
};
use tokio::sync::{RwLock, RwLockReadGuard};
use tokio::sync::{MutexGuard, RwLock, RwLockReadGuard};
pub enum AdminCommand {
RegisterAppservice(serde_yaml::Value),
@ -48,15 +48,19 @@ impl Admin {
)
.unwrap();
if conduit_room.is_none() {
let conduit_room = match conduit_room {
None => {
warn!("Conduit instance does not have an #admins room. Logging to that room will not work. Restart Conduit after creating a user to fix this.");
return;
}
Some(r) => r,
};
drop(guard);
let send_message =
|message: message::MessageEventContent, guard: RwLockReadGuard<'_, Database>| {
if let Some(conduit_room) = &conduit_room {
let send_message = |message: message::MessageEventContent,
guard: RwLockReadGuard<'_, Database>,
mutex_lock: &MutexGuard<'_, ()>| {
guard
.rooms
.build_and_append_pdu(
@ -71,15 +75,24 @@ impl Admin {
&conduit_user,
&conduit_room,
&guard,
mutex_lock,
)
.unwrap();
}
};
loop {
tokio::select! {
Some(event) = receiver.next() => {
let guard = db.read().await;
let mutex = Arc::clone(
guard.globals
.roomid_mutex
.write()
.unwrap()
.entry(conduit_room.clone())
.or_default(),
);
let mutex_lock = mutex.lock().await;
match event {
AdminCommand::RegisterAppservice(yaml) => {
@ -93,15 +106,17 @@ impl Admin {
count,
appservices.into_iter().filter_map(|r| r.ok()).collect::<Vec<_>>().join(", ")
);
send_message(message::MessageEventContent::text_plain(output), guard);
send_message(message::MessageEventContent::text_plain(output), guard, &mutex_lock);
} else {
send_message(message::MessageEventContent::text_plain("Failed to get appservices."), guard);
send_message(message::MessageEventContent::text_plain("Failed to get appservices."), guard, &mutex_lock);
}
}
AdminCommand::SendMessage(message) => {
send_message(message, guard)
send_message(message, guard, &mutex_lock);
}
}
drop(mutex_lock);
}
}
}

2
src/database/globals.rs
View File

@ -46,6 +46,7 @@ pub struct Globals {
pub servername_ratelimiter: Arc<RwLock<BTreeMap<Box<ServerName>, Arc<Semaphore>>>>,
pub sync_receivers: RwLock<BTreeMap<(UserId, Box<DeviceId>), SyncHandle>>,
pub roomid_mutex: RwLock<BTreeMap<RoomId, Arc<Mutex<()>>>>,
pub roomid_mutex_federation: RwLock<BTreeMap<RoomId, Arc<Mutex<()>>>>, // this lock will be held longer
pub rotate: RotationHandler,
}
@ -199,6 +200,7 @@ impl Globals {
bad_signature_ratelimiter: Arc::new(RwLock::new(BTreeMap::new())),
servername_ratelimiter: Arc::new(RwLock::new(BTreeMap::new())),
roomid_mutex: RwLock::new(BTreeMap::new()),
roomid_mutex_federation: RwLock::new(BTreeMap::new()),
sync_receivers: RwLock::new(BTreeMap::new()),
rotate: RotationHandler::new(),
};

14
src/database/rooms.rs
View File

@ -2,6 +2,7 @@ mod edus;
pub use edus::RoomEdus;
use member::MembershipState;
use tokio::sync::MutexGuard;
use crate::{pdu::PduBuilder, utils, Database, Error, PduEvent, Result};
use log::{debug, error, warn};
@ -1207,6 +1208,7 @@ impl Rooms {
sender: &UserId,
room_id: &RoomId,
db: &Database,
_mutex_lock: &MutexGuard<'_, ()>, // Take mutex guard to make sure users get the room mutex
) -> Result<EventId> {
let PduBuilder {
event_type,
@ -1216,7 +1218,6 @@ impl Rooms {
redacts,
} = pdu_builder;
// TODO: Make sure this isn't called twice in parallel
let prev_events = self
.get_pdu_leaves(&room_id)?
.into_iter()
@ -1790,6 +1791,16 @@ impl Rooms {
db,
)?;
} else {
let mutex = Arc::clone(
db.globals
.roomid_mutex
.write()
.unwrap()
.entry(room_id.clone())
.or_default(),
);
let mutex_lock = mutex.lock().await;
let mut event = serde_json::from_value::<Raw<member::MemberEventContent>>(
self.room_state_get(room_id, &EventType::RoomMember, &user_id.to_string())?
.ok_or(Error::BadRequest(
@ -1817,6 +1828,7 @@ impl Rooms {
user_id,
room_id,
db,
&mutex_lock,
)?;
}

21
src/server_server.rs
View File

@ -640,7 +640,7 @@ pub async fn send_transaction_message_route(
let mutex = Arc::clone(
db.globals
.roomid_mutex
.roomid_mutex_federation
.write()
.unwrap()
.entry(room_id.clone())
@ -1308,11 +1308,13 @@ pub fn handle_incoming_pdu<'a>(
pdu_id = Some(
append_incoming_pdu(
&db,
&room_id,
&incoming_pdu,
val,
extremities,
&state_at_incoming_event,
)
.await
.map_err(|_| "Failed to add pdu to db.".to_owned())?,
);
debug!("Appended incoming pdu.");
@ -1611,13 +1613,24 @@ pub(crate) async fn fetch_signing_keys(
/// Append the incoming event setting the state snapshot to the state from the
/// server that sent the event.
#[tracing::instrument(skip(db))]
pub(crate) fn append_incoming_pdu(
async fn append_incoming_pdu(
db: &Database,
room_id: &RoomId,
pdu: &PduEvent,
pdu_json: CanonicalJsonObject,
new_room_leaves: HashSet<EventId>,
state: &StateMap<Arc<PduEvent>>,
) -> Result<Vec<u8>> {
let mutex = Arc::clone(
db.globals
.roomid_mutex
.write()
.unwrap()
.entry(room_id.clone())
.or_default(),
);
let mutex_lock = mutex.lock().await;
// We append to state before appending the pdu, so we don't have a moment in time with the
// pdu without it's state. This is okay because append_pdu can't fail.
db.rooms
@ -1630,6 +1643,8 @@ pub(crate) fn append_incoming_pdu(
&db,
)?;
drop(mutex_lock);
for appservice in db.appservice.iter_all()?.filter_map(|r| r.ok()) {
if let Some(namespaces) = appservice.1.get("namespaces") {
let users = namespaces
@ -2145,7 +2160,7 @@ pub async fn create_join_event_route(
let mutex = Arc::clone(
db.globals
.roomid_mutex
.roomid_mutex_federation
.write()
.unwrap()
.entry(body.room_id.clone())