| 1: | <?php |
| 2: | |
| 3: | declare(strict_types=1); |
| 4: | |
| 5: | /** |
| 6: | * This file is part of the Nexus MCP SDK package. |
| 7: | * |
| 8: | * (c) 2026 John Paul E. Balandan, CPA <paulbalandan@gmail.com> |
| 9: | * |
| 10: | * For the full copyright and license information, please view |
| 11: | * the LICENSE file that was distributed with this source code. |
| 12: | */ |
| 13: | |
| 14: | namespace Nexus\Mcp\Core\Transport; |
| 15: | |
| 16: | /** |
| 17: | * A transport that replaces its own connection in place, so the peer a caller writes to may be a |
| 18: | * different one from the peer it wrote to a moment ago. |
| 19: | */ |
| 20: | interface ReconnectingTransportInterface extends TransportInterface |
| 21: | { |
| 22: | /** |
| 23: | * Registers a listener invoked once for every replacement connection that has started serving. |
| 24: | * It runs after the close emitted for the connection being replaced, and never for the first |
| 25: | * connection, which `start()` already reports. |
| 26: | * |
| 27: | * A protocol layer holding per-connection state uses this to rebuild it. The fresh peer has no |
| 28: | * memory of the old one, so anything the caller expects to survive must be re-sent. |
| 29: | * |
| 30: | * @param \Closure(): void $listener |
| 31: | */ |
| 32: | public function onReconnect(\Closure $listener): SubscriptionInterface; |
| 33: | |
| 34: | /** |
| 35: | * Whether a replacement connection is still on its way. False on a live connection and false once the |
| 36: | * transport has stopped for good, whether it was closed or gave up. |
| 37: | * |
| 38: | * Answers "will what just failed be tried again?", so it is read when a per-connection operation fails, |
| 39: | * not before one is issued. |
| 40: | */ |
| 41: | public function isReconnecting(): bool; |
| 42: | } |
| 43: |