fix(managed): bound timeout work per poll

crates/irtt-client/src/async_client.rs

@@ -27,7 +27,7 @@ use crate::{
     receive::try_recv_tokio_datagram,
     session::machine::{
         recv_buffer_size, OpenDatagramDisposition, PreparedOpenAcceptance, PreparedOpenRequest,
-        PreparedProbe, SessionMachine, MAX_OPEN_PACKET_SIZE,
+        PreparedProbe, SessionMachine, TimeoutBatch, MAX_OPEN_PACKET_SIZE,
     },
     socket::{connect_tokio_udp_socket, resolve_remote_tokio, validate_open_timeouts},
     socket_options::{apply_dscp_to_tokio_socket, clear_dscp_on_tokio_socket},
@@ -300,6 +300,14 @@ impl AsyncClient {
         self.machine.poll_timeouts_at(now)
     }
 
+    pub(crate) fn poll_timeouts_bounded_at(
+        &mut self,
+        now: Instant,
+        limit: usize,
+    ) -> Result<TimeoutBatch, ClientError> {
+        self.machine.poll_timeouts_bounded_at(now, limit)
+    }
+
     /// Send the retained close packet and commit local close exactly once.
     ///
     /// DSCP is cleared only after write readiness and immediately before the