134 lines
3.9 KiB
Rust
134 lines
3.9 KiB
Rust
use std::collections::HashMap;
|
|
use std::net::SocketAddr;
|
|
use std::sync::atomic::{AtomicU64, Ordering};
|
|
use std::sync::Arc;
|
|
|
|
use tokio::sync::{mpsc, Mutex, RwLock};
|
|
|
|
use super::codec::RpcWriter;
|
|
use super::MeResponse;
|
|
|
|
#[derive(Clone)]
|
|
pub struct ConnMeta {
|
|
pub target_dc: i16,
|
|
pub client_addr: SocketAddr,
|
|
pub our_addr: SocketAddr,
|
|
pub proto_flags: u32,
|
|
}
|
|
|
|
#[derive(Clone)]
|
|
pub struct BoundConn {
|
|
pub conn_id: u64,
|
|
pub meta: ConnMeta,
|
|
}
|
|
|
|
#[derive(Clone)]
|
|
pub struct ConnWriter {
|
|
pub writer_id: u64,
|
|
pub writer: Arc<Mutex<RpcWriter>>,
|
|
}
|
|
|
|
pub struct ConnRegistry {
|
|
map: RwLock<HashMap<u64, mpsc::Sender<MeResponse>>>,
|
|
writers: RwLock<HashMap<u64, Arc<Mutex<RpcWriter>>>>,
|
|
writer_for_conn: RwLock<HashMap<u64, u64>>,
|
|
conns_for_writer: RwLock<HashMap<u64, Vec<u64>>>,
|
|
meta: RwLock<HashMap<u64, ConnMeta>>,
|
|
next_id: AtomicU64,
|
|
}
|
|
|
|
impl ConnRegistry {
|
|
pub fn new() -> Self {
|
|
let start = rand::random::<u64>() | 1;
|
|
Self {
|
|
map: RwLock::new(HashMap::new()),
|
|
writers: RwLock::new(HashMap::new()),
|
|
writer_for_conn: RwLock::new(HashMap::new()),
|
|
conns_for_writer: RwLock::new(HashMap::new()),
|
|
meta: RwLock::new(HashMap::new()),
|
|
next_id: AtomicU64::new(start),
|
|
}
|
|
}
|
|
|
|
pub async fn register(&self) -> (u64, mpsc::Receiver<MeResponse>) {
|
|
let id = self.next_id.fetch_add(1, Ordering::Relaxed);
|
|
let (tx, rx) = mpsc::channel(1024);
|
|
self.map.write().await.insert(id, tx);
|
|
(id, rx)
|
|
}
|
|
|
|
pub async fn unregister(&self, id: u64) {
|
|
self.map.write().await.remove(&id);
|
|
self.meta.write().await.remove(&id);
|
|
if let Some(writer_id) = self.writer_for_conn.write().await.remove(&id) {
|
|
if let Some(list) = self.conns_for_writer.write().await.get_mut(&writer_id) {
|
|
list.retain(|c| *c != id);
|
|
}
|
|
}
|
|
}
|
|
|
|
pub async fn route(&self, id: u64, resp: MeResponse) -> bool {
|
|
let m = self.map.read().await;
|
|
if let Some(tx) = m.get(&id) {
|
|
tx.try_send(resp).is_ok()
|
|
} else {
|
|
false
|
|
}
|
|
}
|
|
|
|
pub async fn bind_writer(
|
|
&self,
|
|
conn_id: u64,
|
|
writer_id: u64,
|
|
writer: Arc<Mutex<RpcWriter>>,
|
|
meta: ConnMeta,
|
|
) {
|
|
self.meta.write().await.entry(conn_id).or_insert(meta);
|
|
self.writer_for_conn.write().await.insert(conn_id, writer_id);
|
|
self.writers.write().await.entry(writer_id).or_insert_with(|| writer.clone());
|
|
self.conns_for_writer
|
|
.write()
|
|
.await
|
|
.entry(writer_id)
|
|
.or_insert_with(Vec::new)
|
|
.push(conn_id);
|
|
}
|
|
|
|
pub async fn get_writer(&self, conn_id: u64) -> Option<ConnWriter> {
|
|
let writer_id = {
|
|
let guard = self.writer_for_conn.read().await;
|
|
guard.get(&conn_id).cloned()
|
|
}?;
|
|
let writer = {
|
|
let guard = self.writers.read().await;
|
|
guard.get(&writer_id).cloned()
|
|
}?;
|
|
Some(ConnWriter { writer_id, writer })
|
|
}
|
|
|
|
pub async fn writer_lost(&self, writer_id: u64) -> Vec<BoundConn> {
|
|
self.writers.write().await.remove(&writer_id);
|
|
let conns = self.conns_for_writer.write().await.remove(&writer_id).unwrap_or_default();
|
|
|
|
let mut out = Vec::new();
|
|
let mut writer_for_conn = self.writer_for_conn.write().await;
|
|
let meta = self.meta.read().await;
|
|
|
|
for conn_id in conns {
|
|
writer_for_conn.remove(&conn_id);
|
|
if let Some(m) = meta.get(&conn_id) {
|
|
out.push(BoundConn {
|
|
conn_id,
|
|
meta: m.clone(),
|
|
});
|
|
}
|
|
}
|
|
out
|
|
}
|
|
|
|
pub async fn get_meta(&self, conn_id: u64) -> Option<ConnMeta> {
|
|
let guard = self.meta.read().await;
|
|
guard.get(&conn_id).cloned()
|
|
}
|
|
}
|