README

Swoole adapter for phpdot/container.

Each Swoole coroutine gets its own isolated service scope via Coroutine::getContext(). When the coroutine exits, Swoole destroys the context automatically — no manual cleanup required.

Requirements
Installation
Usage
How It Works
Server Example
Request dispatching
Architecture
Testing
License

Requirements

Requirement	Constraint
PHP	`>= 8.5`
ext-swoole	`>= 6.2`
`phpdot/container`	`^0.1`
`phpdot/contracts`	`^0.1`
`psr/container`	`^1.1 \|\| ^2.0`
`psr/http-message`	`^2.0`
`psr/http-server-handler`	`^1.0`

Installation

composer require phpdot/container-swoole

Usage

use PHPdot\Container\ContainerBuilder;
use PHPdot\Container\Swoole\SwooleContextProvider;
use function PHPdot\Container\singleton;
use function PHPdot\Container\scoped;

$container = (new ContainerBuilder())
    ->withContextProvider(new SwooleContextProvider())
    ->addDefinitions([
        // Shared across all coroutines
        Router::class  => singleton(),
        Redis::class   => singleton(),

        // Isolated per coroutine — fresh for each request
        Session::class       => scoped(),
        SignalManager::class => scoped(),
    ])
    ->build();

How It Works

┌──────────────────────────────────────────────────────────┐
│ Swoole Worker                                            │
│                                                          │
│  Singletons (shared)                                     │
│  ┌────────────────────────────────────────────────────┐  │
│  │  Router       Redis       Config      LogBridge    │  │
│  └────────────────────────────────────────────────────┘  │
│                                                          │
│  Coroutine 1              Coroutine 2                    │
│  ┌──────────────────┐    ┌──────────────────┐           │
│  │ Session (User A)  │    │ Session (User B)  │           │
│  │ Signal (trace-1)  │    │ Signal (trace-2)  │           │
│  └──────────────────┘    └──────────────────┘           │
│    auto-destroyed           auto-destroyed               │
│    on coroutine exit        on coroutine exit             │
└──────────────────────────────────────────────────────────┘

Singleton services resolve once and are shared across all coroutines in the worker.

Scoped services resolve once per coroutine and are stored in Swoole\Coroutine::getContext(). When the coroutine finishes, Swoole's runtime destroys the context and all scoped instances are garbage collected.

Outside a coroutine (CLI bootstrap, onStart callback), the provider falls back to an in-memory ArrayContext.

Server Example

use Swoole\Http\Server;
use PHPdot\Container\ContainerBuilder;
use PHPdot\Container\Swoole\SwooleContextProvider;
use function PHPdot\Container\singleton;
use function PHPdot\Container\scoped;

$container = (new ContainerBuilder())
    ->withContextProvider(new SwooleContextProvider())
    ->addDefinitions([
        Config::class  => singleton(),
        Session::class => scoped(fn($c) => Session::fromRequest($c->get(Request::class))),
    ])
    ->build();

$server = new Server('0.0.0.0', 8080);

$server->on('request', function ($req, $res) use ($container) {
    // Each request runs in its own coroutine.
    // Scoped services are fresh. Singletons are shared.
    $session = $container->get(Session::class);

    $res->end('Hello ' . $session->user());
    // Coroutine ends here — scoped instances destroyed automatically.
});

$server->start();

Request dispatching

ContainerDispatcher is a PSR-15 handler that resolves your real handler from the container on every request — inside the worker, after the fork. Serve it instead of the handler itself so the request path loads lazily (which keeps it hot-reloadable) and scoped services isolate per coroutine:

use PHPdot\Container\Swoole\ContainerDispatcher;

// $container built as above; App\Handler is your PSR-15 entry point.
$dispatcher = new ContainerDispatcher($container, App\Handler::class);

// Hand $dispatcher to your PSR-15 server (e.g. phpdot/server-swoole's serve()).
// On each request it calls $container->get(App\Handler::class) — resolving,
// and loading, in the worker.

If the configured id doesn't resolve to a Psr\Http\Server\RequestHandlerInterface, it throws — a fast failure for a misconfigured handler id.

Architecture

graph TD
    REQ["Incoming request<br/><br/>one Swoole coroutine each"]
    DISP["ContainerDispatcher<br/><br/>PSR-15 handler: opens a fresh<br/>per-request scope, runs the inner handler"]
    CONTAINER["phpdot/container<br/><br/>resolves scoped services<br/>through the active context"]
    PROV["SwooleContextProvider<br/><br/>Contracts ContextProviderInterface,<br/>backed by Swoole\Coroutine::getContext()"]
    CTX["SwooleContext<br/><br/>Context + ContextDestroy: per-coroutine<br/>scoped-instance store, freed at coroutine end"]

    REQ --> DISP
    DISP --> CONTAINER
    CONTAINER --> PROV
    PROV --> CTX

Testing

The package is standalone-testable (requires ext-swoole):

composer install
composer test        # PHPUnit
composer analyse     # PHPStan, level max + strict rules
composer cs-check    # PHP-CS-Fixer
composer check       # All three

License

MIT.

This repository is a read-only mirror, generated by CI from phpdot/monorepo. Pull requests and issues belong in the monorepo.

phpdot / container-swoole

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