wire through knob for TCP user timeout

tokio-postgres/Cargo.toml

@@ -55,7 +55,7 @@ pin-project-lite = "0.2"
 phf = "0.11"
 postgres-protocol = { version = "0.6.4", path = "../postgres-protocol" }
 postgres-types = { version = "0.2.4", path = "../postgres-types" }
-socket2 = "0.4"
+socket2 = { version = "0.4", features = ["all"] }
 tokio = { version = "1.0", features = ["io-util"] }
 tokio-util = { version = "0.7", features = ["codec"] }
 

tokio-postgres/src/cancel_query.rs

@@ -38,6 +38,7 @@ where
         &config.host,
         config.port,
         config.connect_timeout,
+        config.user_timeout,
         config.keepalive.as_ref(),
     )
     .await?;

tokio-postgres/src/client.rs

@@ -156,6 +156,7 @@ pub(crate) struct SocketConfig {
     pub host: Host,
     pub port: u16,
     pub connect_timeout: Option<Duration>,
+    pub user_timeout: Option<Duration>,
     pub keepalive: Option<KeepaliveConfig>,
 }
 

tokio-postgres/src/config.rs

@@ -160,6 +160,7 @@ pub struct Config {
     pub(crate) host: Vec<Host>,
     pub(crate) port: Vec<u16>,
     pub(crate) connect_timeout: Option<Duration>,
+    pub(crate) user_timeout: Option<Duration>,
     pub(crate) keepalives: bool,
     pub(crate) keepalive_config: KeepaliveConfig,
     pub(crate) target_session_attrs: TargetSessionAttrs,
@@ -190,6 +191,7 @@ impl Config {
             host: vec![],
             port: vec![],
             connect_timeout: None,
+            user_timeout: None,
             keepalives: true,
             keepalive_config,
             target_session_attrs: TargetSessionAttrs::Any,
@@ -340,6 +342,18 @@ impl Config {
         self.connect_timeout.as_ref()
     }
 
+    /// Sets the TCP user timeout.
+    pub fn user_timeout(&mut self, user_timeout: Duration) -> &mut Config {
+        self.user_timeout = Some(user_timeout);
+        self
+    }
+
+    /// Gets the TCP user timeout, if one has been set with the
+    /// `user_timeout` method.
+    pub fn get_user_timeout(&self) -> Option<&Duration> {
+        self.user_timeout.as_ref()
+    }
+
     /// Controls the use of TCP keepalive.
     ///
     /// This is ignored for Unix domain socket connections. Defaults to `true`.

tokio-postgres/src/connect.rs

@@ -65,6 +65,7 @@ where
         host,
         port,
         config.connect_timeout,
+        config.user_timeout,
         if config.keepalives {
             Some(&config.keepalive_config)
         } else {
@@ -118,6 +119,7 @@ where
         host: host.clone(),
         port,
         connect_timeout: config.connect_timeout,
+        user_timeout: config.user_timeout,
         keepalive: if config.keepalives {
             Some(config.keepalive_config.clone())
         } else {

tokio-postgres/src/connect_socket.rs

@@ -14,6 +14,7 @@ pub(crate) async fn connect_socket(
     host: &Host,
     port: u16,
     connect_timeout: Option<Duration>,
+    user_timeout: Option<Duration>,
     keepalive_config: Option<&KeepaliveConfig>,
 ) -> Result<Socket, Error> {
     match host {
@@ -35,8 +36,17 @@ pub(crate) async fn connect_socket(
                     };
 
                 stream.set_nodelay(true).map_err(Error::connect)?;
+
+                let sock_ref = SockRef::from(&stream);
+                #[cfg(target_os = "linux")]
+                {
+                    sock_ref
+                        .set_tcp_user_timeout(user_timeout)
+                        .map_err(Error::timeout)?;
+                }
+
                 if let Some(keepalive_config) = keepalive_config {
-                    SockRef::from(&stream)
+                    sock_ref
                         .set_tcp_keepalive(&TcpKeepalive::from(keepalive_config))
                         .map_err(Error::connect)?;
                 }