| 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: | * Lifecycle state of a `TransportInterface` instance. |
| 18: | */ |
| 19: | enum TransportState |
| 20: | { |
| 21: | /** |
| 22: | * Constructed but `start()` has not been called. |
| 23: | */ |
| 24: | case Idle; |
| 25: | |
| 26: | /** |
| 27: | * `start()` has been called. Sending and receiving is allowed. |
| 28: | */ |
| 29: | case Running; |
| 30: | |
| 31: | /** |
| 32: | * `close()` has been called. The instance is terminal. |
| 33: | */ |
| 34: | case Closed; |
| 35: | } |
| 36: |