mirror of
https://github.com/actix/actix-web.git
synced 2024-08-01 18:25:04 +00:00
proper handling for client connection release
This commit is contained in:
Nikolay Kim
parent
1af5aa3a3e
commit
d43902ee7c
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@ -570,6 +570,131 @@ impl ClientConnector {
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.push_back(waiter);
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rx
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}
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fn connect_waiter(&mut self, key: Key, waiter: Waiter, ctx: &mut Context<Self>) {
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let conn = AcquiredConn(key, Some(self.acq_tx.clone()));
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fut::WrapFuture::<ClientConnector>::actfuture(
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self.resolver.as_ref().unwrap().send(
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ResolveConnect::host_and_port(&conn.0.host, conn.0.port)
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.timeout(waiter.conn_timeout),
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),
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).map_err(|_, _, _| ())
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.and_then(move |res, act, _| {
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#[cfg(feature = "alpn")]
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match res {
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Err(err) => {
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act.stats.errors += 1;
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let _ = waiter.tx.send(Err(err.into()));
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fut::Either::B(fut::err(()))
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}
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Ok(stream) => {
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act.stats.opened += 1;
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if conn.0.ssl {
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fut::Either::A(
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act.connector
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.connect_async(&key.host, stream)
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.then(move |res| {
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match res {
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Err(e) => {
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let _ = waiter.tx.send(Err(
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ClientConnectorError::SslError(e),
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));
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}
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Ok(stream) => {
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let _ =
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waiter.tx.send(Ok(Connection::new(
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conn.0.clone(),
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Some(conn),
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Box::new(stream),
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)));
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}
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}
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Ok(())
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})
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.into_actor(act),
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)
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} else {
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let _ = waiter.tx.send(Ok(Connection::new(
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conn.0.clone(),
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Some(conn),
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Box::new(stream),
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)));
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fut::Either::B(fut::ok(()))
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}
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}
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}
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#[cfg(all(feature = "tls", not(feature = "alpn")))]
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match res {
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Err(err) => {
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act.stats.errors += 1;
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let _ = waiter.tx.send(Err(err.into()));
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fut::Either::B(fut::err(()))
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}
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Ok(stream) => {
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act.stats.opened += 1;
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if conn.0.ssl {
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fut::Either::A(
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act.connector
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.connect_async(&conn.0.host, stream)
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.then(|res| {
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match res {
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Err(e) => {
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let _ = waiter.tx.send(Err(
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ClientConnectorError::SslError(e),
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));
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}
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Ok(stream) => {
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let _ =
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waiter.tx.send(Ok(Connection::new(
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conn.0.clone(),
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Some(conn),
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Box::new(stream),
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)));
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}
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}
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Ok(())
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})
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.into_actor(act),
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)
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} else {
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let _ = waiter.tx.send(Ok(Connection::new(
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conn.0.clone(),
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Some(conn),
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Box::new(stream),
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)));
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fut::Either::B(fut::ok(()))
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}
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}
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}
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#[cfg(not(any(feature = "alpn", feature = "tls")))]
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match res {
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Err(err) => {
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act.stats.errors += 1;
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let _ = waiter.tx.send(Err(err.into()));
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fut::err(())
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}
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Ok(stream) => {
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act.stats.opened += 1;
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if conn.0.ssl {
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let _ = waiter
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.tx
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.send(Err(ClientConnectorError::SslIsNotSupported));
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} else {
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let _ = waiter.tx.send(Ok(Connection::new(
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conn.0.clone(),
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Some(conn),
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Box::new(stream),
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)));
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};
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fut::ok(())
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}
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}
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})
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.spawn(ctx);
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}
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}
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impl Handler<Pause> for ClientConnector {
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@ -777,28 +902,78 @@ impl Handler<Connect> for ClientConnector {
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}
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impl StreamHandler<AcquiredConnOperation, ()> for ClientConnector {
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fn handle(&mut self, msg: AcquiredConnOperation, _: &mut Context<Self>) {
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fn handle(&mut self, msg: AcquiredConnOperation, ctx: &mut Context<Self>) {
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let now = Instant::now();
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// check if we have queued up waiters
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let waiter = {
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let key = match msg {
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AcquiredConnOperation::Close(ref conn) => &conn.key,
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AcquiredConnOperation::Release(ref conn) => &conn.key,
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AcquiredConnOperation::ReleaseKey(ref key) => key,
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};
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if let Some(ref mut waiters) = self.waiters.as_mut().unwrap().get_mut(key) {
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loop {
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if let Some(waiter) = waiters.pop_front() {
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if waiter.tx.is_canceled() {
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continue;
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}
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break Some(waiter);
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} else {
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break None;
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}
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}
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} else {
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None
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}
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};
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match msg {
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AcquiredConnOperation::Close(conn) => {
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self.release_key(&conn.key);
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if let Some(waiter) = waiter {
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// create new connection
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self.connect_waiter(conn.key.clone(), waiter, ctx);
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} else {
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self.release_key(&conn.key);
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}
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self.to_close.push(conn);
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self.stats.closed += 1;
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}
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AcquiredConnOperation::Release(conn) => {
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self.release_key(&conn.key);
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AcquiredConnOperation::Release(mut conn) => {
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let alive = (Instant::now() - conn.ts) < self.conn_lifetime;
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// check connection lifetime and the return to available pool
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if (Instant::now() - conn.ts) < self.conn_lifetime {
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self.available
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.entry(conn.key.clone())
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.or_insert_with(VecDeque::new)
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.push_back(Conn(Instant::now(), conn));
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if let Some(waiter) = waiter {
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// check connection lifetime and the return to available pool
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if alive {
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// use existing connection
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self.stats.reused += 1;
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conn.pool = Some(AcquiredConn(
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conn.key.clone(),
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Some(self.acq_tx.clone()),
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));
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let _ = waiter.tx.send(Ok(conn));
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} else {
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// create new connection
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self.connect_waiter(conn.key.clone(), waiter, ctx);
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}
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} else {
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self.release_key(&conn.key);
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if alive {
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self.available
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.entry(conn.key.clone())
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.or_insert_with(VecDeque::new)
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.push_back(Conn(Instant::now(), conn));
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}
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}
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}
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AcquiredConnOperation::ReleaseKey(key) => {
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self.release_key(&key);
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if let Some(waiter) = waiter {
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// create new connection
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self.connect_waiter(key, waiter, ctx);
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} else {
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self.release_key(&key);
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}
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}
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}
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@ -861,130 +1036,8 @@ impl fut::ActorFuture for Maintenance {
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break;
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}
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Acquire::Available => {
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let key = key.clone();
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let conn = AcquiredConn(key.clone(), Some(act.acq_tx.clone()));
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fut::WrapFuture::<ClientConnector>::actfuture(
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act.resolver.as_ref().unwrap().send(
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ResolveConnect::host_and_port(&conn.0.host, conn.0.port)
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.timeout(waiter.conn_timeout),
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),
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).map_err(|_, _, _| ())
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.and_then(move |res, act, _| {
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#[cfg(feature = "alpn")]
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match res {
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Err(err) => {
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act.stats.errors += 1;
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let _ = waiter.tx.send(Err(err.into()));
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fut::Either::B(fut::err(()))
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}
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Ok(stream) => {
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act.stats.opened += 1;
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if conn.0.ssl {
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fut::Either::A(
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act.connector
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.connect_async(&key.host, stream)
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.then(move |res| {
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match res {
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Err(e) => {
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let _ = waiter.tx.send(
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Err(ClientConnectorError::SslError(e)));
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}
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Ok(stream) => {
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let _ = waiter.tx.send(
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Ok(Connection::new(
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conn.0.clone(),
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Some(conn),
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Box::new(stream),
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)),
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);
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}
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}
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Ok(())
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})
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.into_actor(act),
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)
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} else {
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let _ = waiter.tx.send(Ok(Connection::new(
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conn.0.clone(),
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Some(conn),
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Box::new(stream),
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)));
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fut::Either::B(fut::ok(()))
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}
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}
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}
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#[cfg(all(feature = "tls", not(feature = "alpn")))]
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match res {
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Err(err) => {
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act.stats.errors += 1;
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let _ = waiter.tx.send(Err(err.into()));
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fut::Either::B(fut::err(()))
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}
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Ok(stream) => {
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act.stats.opened += 1;
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if conn.0.ssl {
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fut::Either::A(
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act.connector
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.connect_async(&conn.0.host, stream)
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.then(|res| {
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match res {
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Err(e) => {
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let _ = waiter.tx.send(Err(
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ClientConnectorError::SslError(e),
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));
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}
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Ok(stream) => {
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let _ = waiter.tx.send(
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Ok(Connection::new(
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conn.0.clone(),
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Some(conn),
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Box::new(stream),
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)),
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);
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}
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}
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Ok(())
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})
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.into_actor(act),
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)
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} else {
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let _ = waiter.tx.send(Ok(Connection::new(
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conn.0.clone(),
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Some(conn),
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Box::new(stream),
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)));
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fut::Either::B(fut::ok(()))
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}
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}
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}
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#[cfg(not(any(feature = "alpn", feature = "tls")))]
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match res {
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Err(err) => {
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act.stats.errors += 1;
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let _ = waiter.tx.send(Err(err.into()));
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fut::err(())
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}
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Ok(stream) => {
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act.stats.opened += 1;
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if conn.0.ssl {
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let _ = waiter.tx.send(Err(
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ClientConnectorError::SslIsNotSupported,
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));
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} else {
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let _ = waiter.tx.send(Ok(Connection::new(
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conn.0.clone(),
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Some(conn),
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Box::new(stream),
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)));
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};
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fut::ok(())
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}
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}
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})
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.spawn(ctx);
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// create new connection
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act.connect_waiter(key.clone(), waiter, ctx);
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}
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}
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}
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