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devirtualize database 

Signed-off-by: Jason Volk <jason@zemos.net>
This commit is contained in:
Jason Volk 2024-05-28 06:59:50 +00:00
parent 7ad7badd60
commit de21f7442a
12 changed files with 497 additions and 744 deletions
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10
src/database/cork.rs
View File

@ -1,16 +1,16 @@
use std::sync::Arc;
use super::KeyValueDatabaseEngine;
use crate::Engine;
pub struct Cork {
db: Arc<dyn KeyValueDatabaseEngine>,
db: Arc<Engine>,
flush: bool,
sync: bool,
}
impl Cork {
pub fn new(db: &Arc<dyn KeyValueDatabaseEngine>, flush: bool, sync: bool) -> Self {
db.cork().unwrap();
pub fn new(db: &Arc<Engine>, flush: bool, sync: bool) -> Self {
db.cork();
Self {
db: db.clone(),
flush,
@ -21,7 +21,7 @@ impl Cork {
impl Drop for Cork {
fn drop(&mut self) {
self.db.uncork().ok();
self.db.uncork();
if self.flush {
self.db.flush().ok();
}

51
src/database/database.rs Normal file
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@ -0,0 +1,51 @@
use std::{
collections::{BTreeMap, HashMap},
ops::Index,
sync::{Arc, Mutex, RwLock},
};
use conduit::{PduCount, Result, Server};
use lru_cache::LruCache;
use ruma::{CanonicalJsonValue, OwnedDeviceId, OwnedRoomId, OwnedUserId};
use crate::{maps, maps::Maps, Engine, Map};
pub struct Database {
pub db: Arc<Engine>,
pub map: Maps,
//TODO: not a database
pub userdevicesessionid_uiaarequest: RwLock<BTreeMap<(OwnedUserId, OwnedDeviceId, String), CanonicalJsonValue>>,
pub auth_chain_cache: Mutex<LruCache<Vec<u64>, Arc<[u64]>>>,
pub appservice_in_room_cache: RwLock<HashMap<OwnedRoomId, HashMap<String, bool>>>,
pub lasttimelinecount_cache: Mutex<HashMap<OwnedRoomId, PduCount>>,
}
impl Database {
/// Load an existing database or create a new one.
pub async fn open(server: &Arc<Server>) -> Result<Self> {
let config = &server.config;
let db = Engine::open(server)?;
Ok(Self {
db: db.clone(),
map: maps::open(&db)?,
userdevicesessionid_uiaarequest: RwLock::new(BTreeMap::new()),
appservice_in_room_cache: RwLock::new(HashMap::new()),
lasttimelinecount_cache: Mutex::new(HashMap::new()),
auth_chain_cache: Mutex::new(LruCache::new(
(f64::from(config.auth_chain_cache_capacity) * config.conduit_cache_capacity_modifier) as usize,
)),
})
}
}
impl Index<&str> for Database {
type Output = Arc<Map>;
fn index(&self, name: &str) -> &Self::Output {
self.map
.get(name)
.expect("column in database does not exist")
}
}

152
src/database/rocksdb/mod.rs → src/database/engine.rs
View File

@ -1,45 +1,36 @@
// no_link to prevent double-inclusion of librocksdb.a here and with
// libconduit_core.so
#[no_link]
extern crate rust_rocksdb;
use std::{
collections::HashMap,
collections::{HashMap, HashSet},
fmt::Write,
sync::{atomic::AtomicU32, Arc},
sync::{atomic::AtomicU32, Arc, Mutex, RwLock},
};
use chrono::{DateTime, Utc};
use rust_rocksdb::{
use conduit::{debug, error, info, warn, Result, Server};
use rocksdb::{
backup::{BackupEngine, BackupEngineOptions},
perf::get_memory_usage_stats,
Cache, ColumnFamilyDescriptor, DBCommon, DBWithThreadMode as Db, Env, MultiThreaded, Options,
BoundColumnFamily, Cache, ColumnFamilyDescriptor, DBCommon, DBWithThreadMode as Db, Env, MultiThreaded, Options,
};
use tracing::{debug, error, info, warn};
use crate::{watchers::Watchers, Config, KeyValueDatabaseEngine, KvTree, Result};
use crate::{
opts::{cf_options, db_options},
or_else, result,
};
pub(crate) mod kvtree;
pub(crate) mod opts;
use kvtree::RocksDbEngineTree;
use opts::{cf_options, db_options};
use super::watchers;
pub(crate) struct Engine {
config: Config,
pub struct Engine {
server: Arc<Server>,
row_cache: Cache,
col_cache: HashMap<String, Cache>,
col_cache: RwLock<HashMap<String, Cache>>,
opts: Options,
env: Env,
old_cfs: Vec<String>,
rocks: Db<MultiThreaded>,
cfs: Mutex<HashSet<String>>,
pub(crate) db: Db<MultiThreaded>,
corks: AtomicU32,
}
impl KeyValueDatabaseEngine for Arc<Engine> {
fn open(config: &Config) -> Result<Self> {
impl Engine {
pub(crate) fn open(server: &Arc<Server>) -> Result<Arc<Self>> {
let config = &server.config;
let cache_capacity_bytes = config.db_cache_capacity_mb * 1024.0 * 1024.0;
#[allow(clippy::as_conversions, clippy::cast_sign_loss, clippy::cast_possible_truncation)]
@ -85,61 +76,64 @@ impl KeyValueDatabaseEngine for Arc<Engine> {
db.latest_sequence_number(),
load_time.elapsed()
);
Ok(Self::new(Engine {
config: config.clone(),
let cfs = HashSet::<String>::from_iter(cfs);
Ok(Arc::new(Self {
server: server.clone(),
row_cache,
col_cache,
col_cache: RwLock::new(col_cache),
opts: db_opts,
env: db_env,
old_cfs: cfs,
rocks: db,
cfs: Mutex::new(cfs),
db,
corks: AtomicU32::new(0),
}))
}
fn open_tree(&self, name: &'static str) -> Result<Arc<dyn KvTree>> {
if !self.old_cfs.contains(&name.to_owned()) {
// Create if it didn't exist
pub(crate) fn open_cf(&self, name: &str) -> Result<Arc<BoundColumnFamily<'_>>> {
let mut cfs = self.cfs.lock().expect("locked");
if !cfs.contains(name) {
debug!("Creating new column family in database: {}", name);
// TODO: the workaround for this needs to be extended to rocksdb caches, but i
// dont know that code to safely do that
#[allow(clippy::let_underscore_must_use)]
#[allow(clippy::let_underscore_untyped)] // attributes on expressions are experimental
let _ = self.rocks.create_cf(name, &self.opts);
let mut col_cache = self.col_cache.write().expect("locked");
let opts = cf_options(&self.server.config, name, self.opts.clone(), &mut col_cache);
if let Err(e) = self.db.create_cf(name, &opts) {
error!("Failed to create new column family: {e}");
return or_else(e);
}
cfs.insert(name.to_owned());
}
Ok(Arc::new(RocksDbEngineTree {
name,
db: Self::clone(self),
watchers: Watchers::default(),
}))
Ok(self.cf(name))
}
fn flush(&self) -> Result<()> { result(DBCommon::flush_wal(&self.rocks, false)) }
pub(crate) fn cf<'db>(&'db self, name: &str) -> Arc<BoundColumnFamily<'db>> {
self.db
.cf_handle(name)
.expect("column was created and exists")
}
fn sync(&self) -> Result<()> { result(DBCommon::flush_wal(&self.rocks, true)) }
pub fn flush(&self) -> Result<()> { result(DBCommon::flush_wal(&self.db, false)) }
fn corked(&self) -> bool { self.corks.load(std::sync::atomic::Ordering::Relaxed) > 0 }
pub fn sync(&self) -> Result<()> { result(DBCommon::flush_wal(&self.db, true)) }
fn cork(&self) -> Result<()> {
pub(crate) fn corked(&self) -> bool { self.corks.load(std::sync::atomic::Ordering::Relaxed) > 0 }
pub(crate) fn cork(&self) {
self.corks
.fetch_add(1, std::sync::atomic::Ordering::Relaxed);
Ok(())
}
fn uncork(&self) -> Result<()> {
pub(crate) fn uncork(&self) {
self.corks
.fetch_sub(1, std::sync::atomic::Ordering::Relaxed);
Ok(())
}
#[allow(clippy::as_conversions, clippy::cast_sign_loss, clippy::cast_possible_truncation)]
fn memory_usage(&self) -> Result<String> {
pub fn memory_usage(&self) -> Result<String> {
let mut res = String::new();
let stats = get_memory_usage_stats(Some(&[&self.rocks]), Some(&[&self.row_cache])).or_else(or_else)?;
let stats = get_memory_usage_stats(Some(&[&self.db]), Some(&[&self.row_cache])).or_else(or_else)?;
writeln!(
res,
"Memory buffers: {:.2} MiB\nPending write: {:.2} MiB\nTable readers: {:.2} MiB\nRow cache: {:.2} MiB",
@ -150,7 +144,7 @@ impl KeyValueDatabaseEngine for Arc<Engine> {
)
.expect("should be able to write to string buffer");
for (name, cache) in &self.col_cache {
for (name, cache) in &*self.col_cache.read().expect("locked") {
writeln!(res, "{} cache: {:.2} MiB", name, cache.get_usage() as f64 / 1024.0 / 1024.0,)
.expect("should be able to write to string buffer");
}
@ -158,22 +152,23 @@ impl KeyValueDatabaseEngine for Arc<Engine> {
Ok(res)
}
fn cleanup(&self) -> Result<()> {
pub fn cleanup(&self) -> Result<()> {
debug!("Running flush_opt");
let flushoptions = rust_rocksdb::FlushOptions::default();
result(DBCommon::flush_opt(&self.rocks, &flushoptions))
let flushoptions = rocksdb::FlushOptions::default();
result(DBCommon::flush_opt(&self.db, &flushoptions))
}
fn backup(&self) -> Result<(), Box<dyn std::error::Error>> {
let path = self.config.database_backup_path.as_ref();
pub fn backup(&self) -> Result<(), Box<dyn std::error::Error>> {
let config = &self.server.config;
let path = config.database_backup_path.as_ref();
if path.is_none() || path.is_some_and(|path| path.as_os_str().is_empty()) {
return Ok(());
}
let options = BackupEngineOptions::new(path.unwrap())?;
let mut engine = BackupEngine::open(&options, &self.env)?;
if self.config.database_backups_to_keep > 0 {
if let Err(e) = engine.create_new_backup_flush(&self.rocks, true) {
if config.database_backups_to_keep > 0 {
if let Err(e) = engine.create_new_backup_flush(&self.db, true) {
return Err(Box::new(e));
}
@ -185,8 +180,8 @@ impl KeyValueDatabaseEngine for Arc<Engine> {
);
}
if self.config.database_backups_to_keep >= 0 {
let keep = u32::try_from(self.config.database_backups_to_keep)?;
if config.database_backups_to_keep >= 0 {
let keep = u32::try_from(config.database_backups_to_keep)?;
if let Err(e) = engine.purge_old_backups(keep.try_into()?) {
error!("Failed to purge old backup: {:?}", e.to_string());
}
@ -195,8 +190,9 @@ impl KeyValueDatabaseEngine for Arc<Engine> {
Ok(())
}
fn backup_list(&self) -> Result<String> {
let path = self.config.database_backup_path.as_ref();
pub fn backup_list(&self) -> Result<String> {
let config = &self.server.config;
let path = config.database_backup_path.as_ref();
if path.is_none() || path.is_some_and(|path| path.as_os_str().is_empty()) {
return Ok(
"Configure database_backup_path to enable backups, or the path specified is not valid".to_owned(),
@ -223,8 +219,8 @@ impl KeyValueDatabaseEngine for Arc<Engine> {
Ok(res)
}
fn file_list(&self) -> Result<String> {
match self.rocks.live_files() {
pub fn file_list(&self) -> Result<String> {
match self.db.live_files() {
Err(e) => Ok(String::from(e)),
Ok(files) => {
let mut res = String::new();
@ -242,10 +238,6 @@ impl KeyValueDatabaseEngine for Arc<Engine> {
},
}
}
// TODO: figure out if this is needed for rocksdb
#[allow(dead_code)]
fn clear_caches(&self) {}
}
impl Drop for Engine {
@ -253,7 +245,7 @@ impl Drop for Engine {
const BLOCKING: bool = true;
debug!("Waiting for background tasks to finish...");
self.rocks.cancel_all_background_work(BLOCKING);
self.db.cancel_all_background_work(BLOCKING);
debug!("Shutting down background threads");
self.env.set_high_priority_background_threads(0);
@ -265,15 +257,3 @@ impl Drop for Engine {
self.env.join_all_threads();
}
}
#[inline]
fn result<T>(r: std::result::Result<T, rust_rocksdb::Error>) -> Result<T, conduit::Error> {
r.map_or_else(or_else, and_then)
}
#[inline(always)]
fn and_then<T>(t: T) -> Result<T, conduit::Error> { Ok(t) }
fn or_else<T>(e: rust_rocksdb::Error) -> Result<T, conduit::Error> { Err(map_err(e)) }
fn map_err(e: rust_rocksdb::Error) -> conduit::Error { conduit::Error::Database(e.into_string()) }

302
src/database/kvdatabase.rs
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@ -1,302 +0,0 @@
use std::{
collections::{BTreeMap, HashMap},
path::Path,
sync::{Arc, Mutex, RwLock},
};
use conduit::{Config, Error, PduCount, Result, Server};
use lru_cache::LruCache;
use ruma::{CanonicalJsonValue, OwnedDeviceId, OwnedRoomId, OwnedUserId};
use tracing::debug;
use crate::{KeyValueDatabaseEngine, KvTree};
pub struct KeyValueDatabase {
pub db: Arc<dyn KeyValueDatabaseEngine>,
//pub globals: globals::Globals,
pub global: Arc<dyn KvTree>,
pub server_signingkeys: Arc<dyn KvTree>,
pub roomid_inviteviaservers: Arc<dyn KvTree>,
//pub users: users::Users,
pub userid_password: Arc<dyn KvTree>,
pub userid_displayname: Arc<dyn KvTree>,
pub userid_avatarurl: Arc<dyn KvTree>,
pub userid_blurhash: Arc<dyn KvTree>,
pub userdeviceid_token: Arc<dyn KvTree>,
pub userdeviceid_metadata: Arc<dyn KvTree>, // This is also used to check if a device exists
pub userid_devicelistversion: Arc<dyn KvTree>, // DevicelistVersion = u64
pub token_userdeviceid: Arc<dyn KvTree>,
pub onetimekeyid_onetimekeys: Arc<dyn KvTree>, // OneTimeKeyId = UserId + DeviceKeyId
pub userid_lastonetimekeyupdate: Arc<dyn KvTree>, // LastOneTimeKeyUpdate = Count
pub keychangeid_userid: Arc<dyn KvTree>, // KeyChangeId = UserId/RoomId + Count
pub keyid_key: Arc<dyn KvTree>, // KeyId = UserId + KeyId (depends on key type)
pub userid_masterkeyid: Arc<dyn KvTree>,
pub userid_selfsigningkeyid: Arc<dyn KvTree>,
pub userid_usersigningkeyid: Arc<dyn KvTree>,
pub userfilterid_filter: Arc<dyn KvTree>, // UserFilterId = UserId + FilterId
pub todeviceid_events: Arc<dyn KvTree>, // ToDeviceId = UserId + DeviceId + Count
pub userid_presenceid: Arc<dyn KvTree>, // UserId => Count
pub presenceid_presence: Arc<dyn KvTree>, // Count + UserId => Presence
//pub uiaa: uiaa::Uiaa,
pub userdevicesessionid_uiaainfo: Arc<dyn KvTree>, // User-interactive authentication
pub userdevicesessionid_uiaarequest: RwLock<BTreeMap<(OwnedUserId, OwnedDeviceId, String), CanonicalJsonValue>>,
//pub edus: RoomEdus,
pub readreceiptid_readreceipt: Arc<dyn KvTree>, // ReadReceiptId = RoomId + Count + UserId
pub roomuserid_privateread: Arc<dyn KvTree>, // RoomUserId = Room + User, PrivateRead = Count
pub roomuserid_lastprivatereadupdate: Arc<dyn KvTree>, // LastPrivateReadUpdate = Count
//pub rooms: rooms::Rooms,
pub pduid_pdu: Arc<dyn KvTree>, // PduId = ShortRoomId + Count
pub eventid_pduid: Arc<dyn KvTree>,
pub roomid_pduleaves: Arc<dyn KvTree>,
pub alias_roomid: Arc<dyn KvTree>,
pub alias_userid: Arc<dyn KvTree>, // UserId = AliasId (User who created the alias)
pub aliasid_alias: Arc<dyn KvTree>, // AliasId = RoomId + Count
pub publicroomids: Arc<dyn KvTree>,
pub threadid_userids: Arc<dyn KvTree>, // ThreadId = RoomId + Count
pub tokenids: Arc<dyn KvTree>, // TokenId = ShortRoomId + Token + PduIdCount
/// Participating servers in a room.
pub roomserverids: Arc<dyn KvTree>, // RoomServerId = RoomId + ServerName
pub serverroomids: Arc<dyn KvTree>, // ServerRoomId = ServerName + RoomId
pub userroomid_joined: Arc<dyn KvTree>,
pub roomuserid_joined: Arc<dyn KvTree>,
pub roomid_joinedcount: Arc<dyn KvTree>,
pub roomid_invitedcount: Arc<dyn KvTree>,
pub roomuseroncejoinedids: Arc<dyn KvTree>,
pub userroomid_invitestate: Arc<dyn KvTree>, // InviteState = Vec<Raw<Pdu>>
pub roomuserid_invitecount: Arc<dyn KvTree>, // InviteCount = Count
pub userroomid_leftstate: Arc<dyn KvTree>,
pub roomuserid_leftcount: Arc<dyn KvTree>,
pub disabledroomids: Arc<dyn KvTree>, // Rooms where incoming federation handling is disabled
pub bannedroomids: Arc<dyn KvTree>, // Rooms where local users are not allowed to join
pub lazyloadedids: Arc<dyn KvTree>, // LazyLoadedIds = UserId + DeviceId + RoomId + LazyLoadedUserId
pub userroomid_notificationcount: Arc<dyn KvTree>, // NotifyCount = u64
pub userroomid_highlightcount: Arc<dyn KvTree>, // HightlightCount = u64
pub roomuserid_lastnotificationread: Arc<dyn KvTree>, // LastNotificationRead = u64
/// Remember the current state hash of a room.
pub roomid_shortstatehash: Arc<dyn KvTree>,
pub roomsynctoken_shortstatehash: Arc<dyn KvTree>,
/// Remember the state hash at events in the past.
pub shorteventid_shortstatehash: Arc<dyn KvTree>,
pub statekey_shortstatekey: Arc<dyn KvTree>, /* StateKey = EventType + StateKey, ShortStateKey =
* Count */
pub shortstatekey_statekey: Arc<dyn KvTree>,
pub roomid_shortroomid: Arc<dyn KvTree>,
pub shorteventid_eventid: Arc<dyn KvTree>,
pub eventid_shorteventid: Arc<dyn KvTree>,
pub statehash_shortstatehash: Arc<dyn KvTree>,
pub shortstatehash_statediff: Arc<dyn KvTree>, /* StateDiff = parent (or 0) +
* (shortstatekey+shorteventid++) + 0_u64 +
* (shortstatekey+shorteventid--) */
pub shorteventid_authchain: Arc<dyn KvTree>,
/// RoomId + EventId -> outlier PDU.
/// Any pdu that has passed the steps 1-8 in the incoming event
/// /federation/send/txn.
pub eventid_outlierpdu: Arc<dyn KvTree>,
pub softfailedeventids: Arc<dyn KvTree>,
/// ShortEventId + ShortEventId -> ().
pub tofrom_relation: Arc<dyn KvTree>,
/// RoomId + EventId -> Parent PDU EventId.
pub referencedevents: Arc<dyn KvTree>,
//pub account_data: account_data::AccountData,
pub roomuserdataid_accountdata: Arc<dyn KvTree>, // RoomUserDataId = Room + User + Count + Type
pub roomusertype_roomuserdataid: Arc<dyn KvTree>, // RoomUserType = Room + User + Type
//pub media: media::Media,
pub mediaid_file: Arc<dyn KvTree>, // MediaId = MXC + WidthHeight + ContentDisposition + ContentType
pub url_previews: Arc<dyn KvTree>,
pub mediaid_user: Arc<dyn KvTree>,
//pub key_backups: key_backups::KeyBackups,
pub backupid_algorithm: Arc<dyn KvTree>, // BackupId = UserId + Version(Count)
pub backupid_etag: Arc<dyn KvTree>, // BackupId = UserId + Version(Count)
pub backupkeyid_backup: Arc<dyn KvTree>, // BackupKeyId = UserId + Version + RoomId + SessionId
//pub transaction_ids: transaction_ids::TransactionIds,
pub userdevicetxnid_response: Arc<dyn KvTree>, /* Response can be empty (/sendToDevice) or the event id
* (/send) */
//pub sending: sending::Sending,
pub servername_educount: Arc<dyn KvTree>, // EduCount: Count of last EDU sync
pub servernameevent_data: Arc<dyn KvTree>, /* ServernameEvent = (+ / $)SenderKey / ServerName / UserId +
* PduId / Id (for edus), Data = EDU content */
pub servercurrentevent_data: Arc<dyn KvTree>, /* ServerCurrentEvents = (+ / $)ServerName / UserId + PduId
* / Id (for edus), Data = EDU content */
//pub appservice: appservice::Appservice,
pub id_appserviceregistrations: Arc<dyn KvTree>,
//pub pusher: pusher::PushData,
pub senderkey_pusher: Arc<dyn KvTree>,
pub auth_chain_cache: Mutex<LruCache<Vec<u64>, Arc<[u64]>>>,
pub appservice_in_room_cache: RwLock<HashMap<OwnedRoomId, HashMap<String, bool>>>,
pub lasttimelinecount_cache: Mutex<HashMap<OwnedRoomId, PduCount>>,
}
impl KeyValueDatabase {
/// Load an existing database or create a new one.
#[allow(clippy::too_many_lines)]
pub async fn load_or_create(server: &Arc<Server>) -> Result<Self> {
let config = &server.config;
check_db_setup(config)?;
let builder = build(config)?;
Ok(Self {
db: builder.clone(),
userid_password: builder.open_tree("userid_password")?,
userid_displayname: builder.open_tree("userid_displayname")?,
userid_avatarurl: builder.open_tree("userid_avatarurl")?,
userid_blurhash: builder.open_tree("userid_blurhash")?,
userdeviceid_token: builder.open_tree("userdeviceid_token")?,
userdeviceid_metadata: builder.open_tree("userdeviceid_metadata")?,
userid_devicelistversion: builder.open_tree("userid_devicelistversion")?,
token_userdeviceid: builder.open_tree("token_userdeviceid")?,
onetimekeyid_onetimekeys: builder.open_tree("onetimekeyid_onetimekeys")?,
userid_lastonetimekeyupdate: builder.open_tree("userid_lastonetimekeyupdate")?,
keychangeid_userid: builder.open_tree("keychangeid_userid")?,
keyid_key: builder.open_tree("keyid_key")?,
userid_masterkeyid: builder.open_tree("userid_masterkeyid")?,
userid_selfsigningkeyid: builder.open_tree("userid_selfsigningkeyid")?,
userid_usersigningkeyid: builder.open_tree("userid_usersigningkeyid")?,
userfilterid_filter: builder.open_tree("userfilterid_filter")?,
todeviceid_events: builder.open_tree("todeviceid_events")?,
userid_presenceid: builder.open_tree("userid_presenceid")?,
presenceid_presence: builder.open_tree("presenceid_presence")?,
userdevicesessionid_uiaainfo: builder.open_tree("userdevicesessionid_uiaainfo")?,
userdevicesessionid_uiaarequest: RwLock::new(BTreeMap::new()),
readreceiptid_readreceipt: builder.open_tree("readreceiptid_readreceipt")?,
roomuserid_privateread: builder.open_tree("roomuserid_privateread")?, // "Private" read receipt
roomuserid_lastprivatereadupdate: builder.open_tree("roomuserid_lastprivatereadupdate")?,
pduid_pdu: builder.open_tree("pduid_pdu")?,
eventid_pduid: builder.open_tree("eventid_pduid")?,
roomid_pduleaves: builder.open_tree("roomid_pduleaves")?,
alias_roomid: builder.open_tree("alias_roomid")?,
alias_userid: builder.open_tree("alias_userid")?,
aliasid_alias: builder.open_tree("aliasid_alias")?,
publicroomids: builder.open_tree("publicroomids")?,
threadid_userids: builder.open_tree("threadid_userids")?,
tokenids: builder.open_tree("tokenids")?,
roomserverids: builder.open_tree("roomserverids")?,
serverroomids: builder.open_tree("serverroomids")?,
userroomid_joined: builder.open_tree("userroomid_joined")?,
roomuserid_joined: builder.open_tree("roomuserid_joined")?,
roomid_joinedcount: builder.open_tree("roomid_joinedcount")?,
roomid_invitedcount: builder.open_tree("roomid_invitedcount")?,
roomuseroncejoinedids: builder.open_tree("roomuseroncejoinedids")?,
userroomid_invitestate: builder.open_tree("userroomid_invitestate")?,
roomuserid_invitecount: builder.open_tree("roomuserid_invitecount")?,
userroomid_leftstate: builder.open_tree("userroomid_leftstate")?,
roomuserid_leftcount: builder.open_tree("roomuserid_leftcount")?,
disabledroomids: builder.open_tree("disabledroomids")?,
bannedroomids: builder.open_tree("bannedroomids")?,
lazyloadedids: builder.open_tree("lazyloadedids")?,
userroomid_notificationcount: builder.open_tree("userroomid_notificationcount")?,
userroomid_highlightcount: builder.open_tree("userroomid_highlightcount")?,
roomuserid_lastnotificationread: builder.open_tree("userroomid_highlightcount")?,
statekey_shortstatekey: builder.open_tree("statekey_shortstatekey")?,
shortstatekey_statekey: builder.open_tree("shortstatekey_statekey")?,
shorteventid_authchain: builder.open_tree("shorteventid_authchain")?,
roomid_shortroomid: builder.open_tree("roomid_shortroomid")?,
shortstatehash_statediff: builder.open_tree("shortstatehash_statediff")?,
eventid_shorteventid: builder.open_tree("eventid_shorteventid")?,
shorteventid_eventid: builder.open_tree("shorteventid_eventid")?,
shorteventid_shortstatehash: builder.open_tree("shorteventid_shortstatehash")?,
roomid_shortstatehash: builder.open_tree("roomid_shortstatehash")?,
roomsynctoken_shortstatehash: builder.open_tree("roomsynctoken_shortstatehash")?,
statehash_shortstatehash: builder.open_tree("statehash_shortstatehash")?,
eventid_outlierpdu: builder.open_tree("eventid_outlierpdu")?,
softfailedeventids: builder.open_tree("softfailedeventids")?,
tofrom_relation: builder.open_tree("tofrom_relation")?,
referencedevents: builder.open_tree("referencedevents")?,
roomuserdataid_accountdata: builder.open_tree("roomuserdataid_accountdata")?,
roomusertype_roomuserdataid: builder.open_tree("roomusertype_roomuserdataid")?,
mediaid_file: builder.open_tree("mediaid_file")?,
url_previews: builder.open_tree("url_previews")?,
mediaid_user: builder.open_tree("mediaid_user")?,
backupid_algorithm: builder.open_tree("backupid_algorithm")?,
backupid_etag: builder.open_tree("backupid_etag")?,
backupkeyid_backup: builder.open_tree("backupkeyid_backup")?,
userdevicetxnid_response: builder.open_tree("userdevicetxnid_response")?,
servername_educount: builder.open_tree("servername_educount")?,
servernameevent_data: builder.open_tree("servernameevent_data")?,
servercurrentevent_data: builder.open_tree("servercurrentevent_data")?,
id_appserviceregistrations: builder.open_tree("id_appserviceregistrations")?,
senderkey_pusher: builder.open_tree("senderkey_pusher")?,
global: builder.open_tree("global")?,
server_signingkeys: builder.open_tree("server_signingkeys")?,
roomid_inviteviaservers: builder.open_tree("roomid_inviteviaservers")?,
auth_chain_cache: Mutex::new(LruCache::new(
(f64::from(config.auth_chain_cache_capacity) * config.conduit_cache_capacity_modifier) as usize,
)),
appservice_in_room_cache: RwLock::new(HashMap::new()),
lasttimelinecount_cache: Mutex::new(HashMap::new()),
})
}
}
fn build(config: &Config) -> Result<Arc<dyn KeyValueDatabaseEngine>> {
match &*config.database_backend {
"rocksdb" => {
debug!("Got rocksdb database backend");
#[cfg(not(feature = "rocksdb"))]
return Err(Error::bad_config("Database backend not found."));
#[cfg(feature = "rocksdb")]
Ok(Arc::new(Arc::<crate::rocksdb::Engine>::open(config)?))
},
_ => Err(Error::bad_config(
"Database backend not found. rocksdb is the only supported backend.",
)),
}
}
fn check_db_setup(config: &Config) -> Result<()> {
let path = Path::new(&config.database_path);
let rocksdb_exists = path.join("IDENTITY").exists();
if rocksdb_exists && config.database_backend != "rocksdb" {
return Err(Error::bad_config(
"Found rocksdb at database_path, but is not specified in config.",
));
}
Ok(())
}

38
src/database/kvengine.rs
View File

@ -1,38 +0,0 @@
use std::{error::Error, sync::Arc};
use super::{Config, KvTree};
use crate::Result;
pub trait KeyValueDatabaseEngine: Send + Sync {
fn open(config: &Config) -> Result<Self>
where
Self: Sized;
fn open_tree(&self, name: &'static str) -> Result<Arc<dyn KvTree>>;
fn flush(&self) -> Result<()>;
#[allow(dead_code)]
fn sync(&self) -> Result<()> { Ok(()) }
fn cork(&self) -> Result<()> { Ok(()) }
fn uncork(&self) -> Result<()> { Ok(()) }
fn corked(&self) -> bool { false }
fn cleanup(&self) -> Result<()> { Ok(()) }
fn memory_usage(&self) -> Result<String> {
Ok("Current database engine does not support memory usage reporting.".to_owned())
}
#[allow(dead_code)]
fn clear_caches(&self) {}
fn backup(&self) -> Result<(), Box<dyn Error>> { unimplemented!() }
fn backup_list(&self) -> Result<String> { Ok(String::new()) }
fn file_list(&self) -> Result<String> { Ok(String::new()) }
}

62
src/database/kvtree.rs
View File

@ -1,62 +0,0 @@
use std::{future::Future, pin::Pin};
use crate::Result;
pub trait KvTree: Send + Sync {
fn get(&self, key: &[u8]) -> Result<Option<Vec<u8>>>;
#[allow(dead_code)]
fn multi_get(&self, keys: &[&[u8]]) -> Result<Vec<Option<Vec<u8>>>> {
let mut ret: Vec<Option<Vec<u8>>> = Vec::with_capacity(keys.len());
for key in keys {
ret.push(self.get(key)?);
}
Ok(ret)
}
fn insert(&self, key: &[u8], value: &[u8]) -> Result<()>;
fn insert_batch(&self, iter: &mut dyn Iterator<Item = (Vec<u8>, Vec<u8>)>) -> Result<()> {
for (key, value) in iter {
self.insert(&key, &value)?;
}
Ok(())
}
fn remove(&self, key: &[u8]) -> Result<()>;
#[allow(dead_code)]
fn remove_batch(&self, iter: &mut dyn Iterator<Item = Vec<u8>>) -> Result<()> {
for key in iter {
self.remove(&key)?;
}
Ok(())
}
fn iter<'a>(&'a self) -> Box<dyn Iterator<Item = (Vec<u8>, Vec<u8>)> + 'a>;
fn iter_from<'a>(&'a self, from: &[u8], backwards: bool) -> Box<dyn Iterator<Item = (Vec<u8>, Vec<u8>)> + 'a>;
fn increment(&self, key: &[u8]) -> Result<Vec<u8>>;
fn increment_batch(&self, iter: &mut dyn Iterator<Item = Vec<u8>>) -> Result<()> {
for key in iter {
self.increment(&key)?;
}
Ok(())
}
fn scan_prefix<'a>(&'a self, prefix: Vec<u8>) -> Box<dyn Iterator<Item = (Vec<u8>, Vec<u8>)> + 'a>;
fn watch_prefix<'a>(&'a self, prefix: &[u8]) -> Pin<Box<dyn Future<Output = ()> + Send + 'a>>;
fn clear(&self) -> Result<()> {
for (key, _) in self.iter() {
self.remove(&key)?;
}
Ok(())
}
}

242
src/database/map.rs Normal file
View File

@ -0,0 +1,242 @@
use std::{future::Future, pin::Pin, sync::Arc};
use conduit::{utils, Result};
use rocksdb::{BoundColumnFamily, Direction, IteratorMode, ReadOptions, WriteBatchWithTransaction, WriteOptions};
use super::{or_else, result, watchers::Watchers, Engine};
pub struct Map {
db: Arc<Engine>,
name: String,
watchers: Watchers,
}
type Key = Vec<u8>;
type Val = Vec<u8>;
type KeyVal = (Key, Val);
impl Map {
pub(crate) fn open(db: &Arc<Engine>, name: &str) -> Result<Arc<Self>> {
db.open_cf(name)?;
Ok(Arc::new(Self {
db: db.clone(),
name: name.to_owned(),
watchers: Watchers::default(),
}))
}
pub fn get(&self, key: &[u8]) -> Result<Option<Vec<u8>>> {
let mut readoptions = ReadOptions::default();
readoptions.set_total_order_seek(true);
result(self.db.db.get_cf_opt(&self.cf(), key, &readoptions))
}
pub fn multi_get(&self, keys: &[&[u8]]) -> Result<Vec<Option<Vec<u8>>>> {
// Optimization can be `true` if key vector is pre-sorted **by the column
// comparator**.
const SORTED: bool = false;
let mut readoptions = ReadOptions::default();
readoptions.set_total_order_seek(true);
let mut ret: Vec<Option<Vec<u8>>> = Vec::with_capacity(keys.len());
for res in self
.db
.db
.batched_multi_get_cf_opt(&self.cf(), keys, SORTED, &readoptions)
{
match res {
Ok(Some(res)) => ret.push(Some((*res).to_vec())),
Ok(None) => ret.push(None),
Err(e) => return or_else(e),
}
}
Ok(ret)
}
pub fn insert(&self, key: &[u8], value: &[u8]) -> Result<()> {
let writeoptions = WriteOptions::default();
self.db
.db
.put_cf_opt(&self.cf(), key, value, &writeoptions)
.or_else(or_else)?;
if !self.db.corked() {
self.db.flush()?;
}
self.watchers.wake(key);
Ok(())
}
pub fn insert_batch(&self, iter: &mut dyn Iterator<Item = KeyVal>) -> Result<()> {
let writeoptions = WriteOptions::default();
let mut batch = WriteBatchWithTransaction::<false>::default();
for (key, value) in iter {
batch.put_cf(&self.cf(), key, value);
}
let res = self.db.db.write_opt(batch, &writeoptions);
if !self.db.corked() {
self.db.flush()?;
}
result(res)
}
pub fn remove(&self, key: &[u8]) -> Result<()> {
let writeoptions = WriteOptions::default();
let res = self.db.db.delete_cf_opt(&self.cf(), key, &writeoptions);
if !self.db.corked() {
self.db.flush()?;
}
result(res)
}
pub fn remove_batch(&self, iter: &mut dyn Iterator<Item = Key>) -> Result<()> {
let writeoptions = WriteOptions::default();
let mut batch = WriteBatchWithTransaction::<false>::default();
for key in iter {
batch.delete_cf(&self.cf(), key);
}
let res = self.db.db.write_opt(batch, &writeoptions);
if !self.db.corked() {
self.db.flush()?;
}
result(res)
}
pub fn iter<'a>(&'a self) -> Box<dyn Iterator<Item = KeyVal> + 'a> {
let mut readoptions = ReadOptions::default();
readoptions.set_total_order_seek(true);
let it = self
.db
.db
.iterator_cf_opt(&self.cf(), readoptions, IteratorMode::Start)
.map(Result::unwrap)
.map(|(k, v)| (Vec::from(k), Vec::from(v)));
Box::new(it)
}
pub fn iter_from<'a>(&'a self, from: &[u8], backwards: bool) -> Box<dyn Iterator<Item = KeyVal> + 'a> {
let mut readoptions = ReadOptions::default();
readoptions.set_total_order_seek(true);
let it = self
.db
.db
.iterator_cf_opt(
&self.cf(),
readoptions,
IteratorMode::From(
from,
if backwards {
Direction::Reverse
} else {
Direction::Forward
},
),
)
.map(Result::unwrap)
.map(|(k, v)| (Vec::from(k), Vec::from(v)));
Box::new(it)
}
pub fn increment(&self, key: &[u8]) -> Result<Vec<u8>> {
let mut readoptions = ReadOptions::default();
readoptions.set_total_order_seek(true);
let writeoptions = WriteOptions::default();
let old = self
.db
.db
.get_cf_opt(&self.cf(), key, &readoptions)
.or_else(or_else)?;
let new = utils::increment(old.as_deref());
self.db
.db
.put_cf_opt(&self.cf(), key, new, &writeoptions)
.or_else(or_else)?;
if !self.db.corked() {
self.db.flush()?;
}
Ok(new.to_vec())
}
pub fn increment_batch(&self, iter: &mut dyn Iterator<Item = Val>) -> Result<()> {
let mut readoptions = ReadOptions::default();
readoptions.set_total_order_seek(true);
let writeoptions = WriteOptions::default();
let mut batch = WriteBatchWithTransaction::<false>::default();
for key in iter {
let old = self
.db
.db
.get_cf_opt(&self.cf(), &key, &readoptions)
.or_else(or_else)?;
let new = utils::increment(old.as_deref());
batch.put_cf(&self.cf(), key, new);
}
self.db
.db
.write_opt(batch, &writeoptions)
.or_else(or_else)?;
if !self.db.corked() {
self.db.flush()?;
}
Ok(())
}
pub fn scan_prefix<'a>(&'a self, prefix: Vec<u8>) -> Box<dyn Iterator<Item = KeyVal> + 'a> {
let mut readoptions = ReadOptions::default();
readoptions.set_total_order_seek(true);
let it = self
.db
.db
.iterator_cf_opt(&self.cf(), readoptions, IteratorMode::From(&prefix, Direction::Forward))
.map(Result::unwrap)
.map(|(k, v)| (Vec::from(k), Vec::from(v)))
.take_while(move |(k, _)| k.starts_with(&prefix));
Box::new(it)
}
pub fn watch_prefix<'a>(&'a self, prefix: &[u8]) -> Pin<Box<dyn Future<Output = ()> + Send + 'a>> {
self.watchers.watch(prefix)
}
fn cf(&self) -> Arc<BoundColumnFamily<'_>> { self.db.cf(&self.name) }
}
impl<'a> IntoIterator for &'a Map {
type IntoIter = Box<dyn Iterator<Item = Self::Item> + 'a>;
type Item = KeyVal;
fn into_iter(self) -> Self::IntoIter { self.iter() }
}

99
src/database/maps.rs Normal file
View File

@ -0,0 +1,99 @@
use std::{collections::BTreeMap, sync::Arc};
use conduit::Result;
use crate::{Engine, Map};
pub type Maps = BTreeMap<String, Arc<Map>>;
pub(crate) fn open(db: &Arc<Engine>) -> Result<Maps> { open_list(db, MAPS) }
pub(crate) fn open_list(db: &Arc<Engine>, maps: &[&str]) -> Result<Maps> {
Ok(maps
.iter()
.map(|&name| (name.to_owned(), Map::open(db, name).expect("valid column opened")))
.collect::<Maps>())
}
pub const MAPS: &[&str] = &[
"alias_roomid",
"alias_userid",
"aliasid_alias",
"backupid_algorithm",
"backupid_etag",
"backupkeyid_backup",
"bannedroomids",
"disabledroomids",
"eventid_outlierpdu",
"eventid_pduid",
"eventid_shorteventid",
"global",
"id_appserviceregistrations",
"keychangeid_userid",
"keyid_key",
"lazyloadedids",
"mediaid_file",
"mediaid_user",
"onetimekeyid_onetimekeys",
"pduid_pdu",
"presenceid_presence",
"publicroomids",
"readreceiptid_readreceipt",
"referencedevents",
"roomid_invitedcount",
"roomid_inviteviaservers",
"roomid_joinedcount",
"roomid_pduleaves",
"roomid_shortroomid",
"roomid_shortstatehash",
"roomserverids",
"roomsynctoken_shortstatehash",
"roomuserdataid_accountdata",
"roomuserid_invitecount",
"roomuserid_joined",
"roomuserid_lastprivatereadupdate",
"roomuserid_leftcount",
"roomuserid_privateread",
"roomuseroncejoinedids",
"roomusertype_roomuserdataid",
"senderkey_pusher",
"server_signingkeys",
"servercurrentevent_data",
"servername_educount",
"servernameevent_data",
"serverroomids",
"shorteventid_authchain",
"shorteventid_eventid",
"shorteventid_shortstatehash",
"shortstatehash_statediff",
"shortstatekey_statekey",
"softfailedeventids",
"statehash_shortstatehash",
"statekey_shortstatekey",
"threadid_userids",
"todeviceid_events",
"tofrom_relation",
"token_userdeviceid",
"tokenids",
"url_previews",
"userdeviceid_metadata",
"userdeviceid_token",
"userdevicesessionid_uiaainfo",
"userdevicetxnid_response",
"userfilterid_filter",
"userid_avatarurl",
"userid_blurhash",
"userid_devicelistversion",
"userid_displayname",
"userid_lastonetimekeyupdate",
"userid_masterkeyid",
"userid_password",
"userid_presenceid",
"userid_selfsigningkeyid",
"userid_usersigningkeyid",
"userroomid_highlightcount",
"userroomid_invitestate",
"userroomid_joined",
"userroomid_leftstate",
"userroomid_notificationcount",
];

26
src/database/mod.rs
View File

@ -1,20 +1,20 @@
pub mod cork;
mod kvdatabase;
mod kvengine;
mod kvtree;
#[cfg(feature = "rocksdb")]
pub(crate) mod rocksdb;
#[cfg(feature = "rocksdb")]
pub(crate) mod watchers;
mod database;
mod engine;
mod map;
pub mod maps;
mod opts;
mod util;
mod watchers;
extern crate conduit_core as conduit;
pub(crate) use conduit::{Config, Result};
extern crate rust_rocksdb as rocksdb;
pub use cork::Cork;
pub use kvdatabase::KeyValueDatabase;
pub use kvengine::KeyValueDatabaseEngine;
pub use kvtree::KvTree;
pub use database::Database;
pub(crate) use engine::Engine;
pub use map::Map;
pub(crate) use util::{or_else, result};
conduit::mod_ctor! {}
conduit::mod_dtor! {}

19
src/database/rocksdb/opts.rs → src/database/opts.rs
View File

@ -1,14 +1,9 @@
#![allow(dead_code)]
use std::{cmp, collections::HashMap};
use conduit::utils;
use super::{
rust_rocksdb::{
BlockBasedOptions, Cache, DBCompactionStyle, DBCompressionType, DBRecoveryMode, Env, LogLevel, Options,
UniversalCompactOptions, UniversalCompactionStopStyle,
},
Config,
use conduit::{utils, Config};
use rocksdb::{
BlockBasedOptions, Cache, DBCompactionStyle, DBCompressionType, DBRecoveryMode, Env, LogLevel, Options,
UniversalCompactOptions, UniversalCompactionStopStyle,
};
/// Create database-wide options suitable for opening the database. This also
@ -150,7 +145,7 @@ pub(crate) fn cf_options(cfg: &Config, name: &str, mut opts: Options, cache: &mu
),
#[allow(clippy::as_conversions, clippy::cast_sign_loss, clippy::cast_possible_truncation)]
"pduid_pdu" => set_table_with_new_cache(
"eventid_outlierpdu" => set_table_with_new_cache(
&mut opts,
cfg,
cache,
@ -158,7 +153,7 @@ pub(crate) fn cf_options(cfg: &Config, name: &str, mut opts: Options, cache: &mu
(cfg.pdu_cache_capacity as usize).saturating_mul(1536),
),
"eventid_outlierpdu" => set_table_with_shared_cache(&mut opts, cfg, cache, name, "pduid_pdu"),
"pduid_pdu" => set_table_with_shared_cache(&mut opts, cfg, cache, name, "eventid_outlierpdu"),
&_ => {},
}
@ -210,6 +205,7 @@ fn set_compression_defaults(opts: &mut Options, config: &Config) {
opts.set_compression_type(rocksdb_compression_algo);
}
#[allow(dead_code)]
fn set_for_random_small_uc(opts: &mut Options, config: &Config) {
let uco = uc_options(config);
set_for_random_small(opts, config);
@ -224,6 +220,7 @@ fn set_for_sequential_small_uc(opts: &mut Options, config: &Config) {
opts.set_compaction_style(DBCompactionStyle::Universal);
}
#[allow(dead_code)]
fn set_for_random_small(opts: &mut Options, config: &Config) {
set_for_random(opts, config);

227
src/database/rocksdb/kvtree.rs
View File

@ -1,227 +0,0 @@
use std::{future::Future, pin::Pin, sync::Arc};
use conduit::{utils, Result};
use super::{
or_else, result, rust_rocksdb::WriteBatchWithTransaction, watchers::Watchers, Engine, KeyValueDatabaseEngine,
KvTree,
};
pub(crate) struct RocksDbEngineTree<'a> {
pub(crate) db: Arc<Engine>,
pub(crate) name: &'a str,
pub(crate) watchers: Watchers,
}
impl RocksDbEngineTree<'_> {
fn cf(&self) -> Arc<rust_rocksdb::BoundColumnFamily<'_>> { self.db.rocks.cf_handle(self.name).unwrap() }
}
impl KvTree for RocksDbEngineTree<'_> {
fn get(&self, key: &[u8]) -> Result<Option<Vec<u8>>> {
let mut readoptions = rust_rocksdb::ReadOptions::default();
readoptions.set_total_order_seek(true);
result(self.db.rocks.get_cf_opt(&self.cf(), key, &readoptions))
}
fn multi_get(&self, keys: &[&[u8]]) -> Result<Vec<Option<Vec<u8>>>> {
// Optimization can be `true` if key vector is pre-sorted **by the column
// comparator**.
const SORTED: bool = false;
let mut readoptions = rust_rocksdb::ReadOptions::default();
readoptions.set_total_order_seek(true);
let mut ret: Vec<Option<Vec<u8>>> = Vec::with_capacity(keys.len());
for res in self
.db
.rocks
.batched_multi_get_cf_opt(&self.cf(), keys, SORTED, &readoptions)
{
match res {
Ok(Some(res)) => ret.push(Some((*res).to_vec())),
Ok(None) => ret.push(None),
Err(e) => return or_else(e),
}
}
Ok(ret)
}
fn insert(&self, key: &[u8], value: &[u8]) -> Result<()> {
let writeoptions = rust_rocksdb::WriteOptions::default();
self.db
.rocks
.put_cf_opt(&self.cf(), key, value, &writeoptions)
.or_else(or_else)?;
if !self.db.corked() {
self.db.flush()?;
}
self.watchers.wake(key);
Ok(())
}
fn insert_batch(&self, iter: &mut dyn Iterator<Item = (Vec<u8>, Vec<u8>)>) -> Result<()> {
let writeoptions = rust_rocksdb::WriteOptions::default();
let mut batch = WriteBatchWithTransaction::<false>::default();
for (key, value) in iter {
batch.put_cf(&self.cf(), key, value);
}
let res = self.db.rocks.write_opt(batch, &writeoptions);
if !self.db.corked() {
self.db.flush()?;
}
result(res)
}
fn remove(&self, key: &[u8]) -> Result<()> {
let writeoptions = rust_rocksdb::WriteOptions::default();
let res = self.db.rocks.delete_cf_opt(&self.cf(), key, &writeoptions);
if !self.db.corked() {
self.db.flush()?;
}
result(res)
}
fn remove_batch(&self, iter: &mut dyn Iterator<Item = Vec<u8>>) -> Result<()> {
let writeoptions = rust_rocksdb::WriteOptions::default();
let mut batch = WriteBatchWithTransaction::<false>::default();
for key in iter {
batch.delete_cf(&self.cf(), key);
}
let res = self.db.rocks.write_opt(batch, &writeoptions);
if !self.db.corked() {
self.db.flush()?;
}
result(res)
}
fn iter<'a>(&'a self) -> Box<dyn Iterator<Item = (Vec<u8>, Vec<u8>)> + 'a> {
let mut readoptions = rust_rocksdb::ReadOptions::default();
readoptions.set_total_order_seek(true);
Box::new(
self.db
.rocks
.iterator_cf_opt(&self.cf(), readoptions, rust_rocksdb::IteratorMode::Start)
.map(Result::unwrap)
.map(|(k, v)| (Vec::from(k), Vec::from(v))),
)
}
fn iter_from<'a>(&'a self, from: &[u8], backwards: bool) -> Box<dyn Iterator<Item = (Vec<u8>, Vec<u8>)> + 'a> {
let mut readoptions = rust_rocksdb::ReadOptions::default();
readoptions.set_total_order_seek(true);
Box::new(
self.db
.rocks
.iterator_cf_opt(
&self.cf(),
readoptions,
rust_rocksdb::IteratorMode::From(
from,
if backwards {
rust_rocksdb::Direction::Reverse
} else {
rust_rocksdb::Direction::Forward
},
),
)
.map(Result::unwrap)
.map(|(k, v)| (Vec::from(k), Vec::from(v))),
)
}
fn increment(&self, key: &[u8]) -> Result<Vec<u8>> {
let mut readoptions = rust_rocksdb::ReadOptions::default();
readoptions.set_total_order_seek(true);
let writeoptions = rust_rocksdb::WriteOptions::default();
let old = self
.db
.rocks
.get_cf_opt(&self.cf(), key, &readoptions)
.or_else(or_else)?;
let new = utils::increment(old.as_deref());
self.db
.rocks
.put_cf_opt(&self.cf(), key, new, &writeoptions)
.or_else(or_else)?;
if !self.db.corked() {
self.db.flush()?;
}
Ok(new.to_vec())
}
fn increment_batch(&self, iter: &mut dyn Iterator<Item = Vec<u8>>) -> Result<()> {
let mut readoptions = rust_rocksdb::ReadOptions::default();
readoptions.set_total_order_seek(true);
let writeoptions = rust_rocksdb::WriteOptions::default();
let mut batch = WriteBatchWithTransaction::<false>::default();
for key in iter {
let old = self
.db
.rocks
.get_cf_opt(&self.cf(), &key, &readoptions)
.or_else(or_else)?;
let new = utils::increment(old.as_deref());
batch.put_cf(&self.cf(), key, new);
}
self.db
.rocks
.write_opt(batch, &writeoptions)
.or_else(or_else)?;
if !self.db.corked() {
self.db.flush()?;
}
Ok(())
}
fn scan_prefix<'a>(&'a self, prefix: Vec<u8>) -> Box<dyn Iterator<Item = (Vec<u8>, Vec<u8>)> + 'a> {
let mut readoptions = rust_rocksdb::ReadOptions::default();
readoptions.set_total_order_seek(true);
Box::new(
self.db
.rocks
.iterator_cf_opt(
&self.cf(),
readoptions,
rust_rocksdb::IteratorMode::From(&prefix, rust_rocksdb::Direction::Forward),
)
.map(Result::unwrap)
.map(|(k, v)| (Vec::from(k), Vec::from(v)))
.take_while(move |(k, _)| k.starts_with(&prefix)),
)
}
fn watch_prefix<'a>(&'a self, prefix: &[u8]) -> Pin<Box<dyn Future<Output = ()> + Send + 'a>> {
self.watchers.watch(prefix)
}
}

13
src/database/util.rs Normal file
View File

@ -0,0 +1,13 @@
use conduit::Result;
#[inline]
pub(crate) fn result<T>(r: std::result::Result<T, rocksdb::Error>) -> Result<T, conduit::Error> {
r.map_or_else(or_else, and_then)
}
#[inline(always)]
pub(crate) fn and_then<T>(t: T) -> Result<T, conduit::Error> { Ok(t) }
pub(crate) fn or_else<T>(e: rocksdb::Error) -> Result<T, conduit::Error> { Err(map_err(e)) }
pub(crate) fn map_err(e: rocksdb::Error) -> conduit::Error { conduit::Error::Database(e.into_string()) }