GODRIVER-3648 Make server selection block on topology updates.

matthewdale · matthewdale · commit 768bf6d4505a · 2025-09-26T12:34:10.000-07:00
diff --git a/x/mongo/driver/topology/topology.go b/x/mongo/driver/topology/topology.go
@@ -694,7 +694,6 @@ func (t *Topology) selectServerFromSubscription(
 		case <-ctx.Done():
 			return nil, ServerSelectionError{Wrapped: ctx.Err(), Desc: current}
 		case current = <-subscriptionCh:
-		default:
 		}
 
 		suitable, err := t.selectServerFromDescription(current, srvSelector)

Original file line number	Diff line number	Diff line change
`@@ -694,7 +694,6 @@ func (t *Topology) selectServerFromSubscription(`
`694`	`694`	`case <-ctx.Done():`
`695`	`695`	`return nil, ServerSelectionError{Wrapped: ctx.Err(), Desc: current}`
`696`	`696`	`case current = <-subscriptionCh:`
`697`		`- default:`
`698`	`697`	`}`
`699`	`698`
`700`	`699`	`suitable, err := t.selectServerFromDescription(current, srvSelector)`