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\Dispatch;
15:
16: use Nexus\Mcp\Core\Schema\RequestId;
17: use Nexus\Mcp\Core\Transport\ReceiveContext;
18: use Nexus\Mcp\Core\Transport\TransportInterface;
19:
20: /**
21: * Per-envelope inbound dispatch contract shared by the Server and Client
22: * runtimes. Each side owns one implementation and exposes it to a
23: * transport's `onMessage` / `onDrain` listeners.
24: */
25: interface MessageDispatcherInterface
26: {
27: /**
28: * Processes a single inbound JSON-RPC envelope.
29: *
30: * @param array<string, mixed> $envelope
31: */
32: public function dispatch(array $envelope, TransportInterface $transport, ReceiveContext $context): void;
33:
34: /**
35: * Awaits every in-flight dispatch coroutine spawned by `dispatch()`.
36: */
37: public function flushPending(): void;
38:
39: /**
40: * Cancels the in-flight request `$id` names, if one is still running under it.
41: */
42: public function cancelRequest(RequestId $id): void;
43: }
44: