Synchronous implementation

The InMemory adapter doesn't use any work queue. All the tasks are executed immediately and synchronously in the same process.

This implementation is useful if you don't want to install a work queue on your development machine, or in tests too.

It implements the same interface as the other adapters, so you can use it the same way:

$workDispatcher = new InMemoryWorkDispatcher(new InMemoryWorker());

// Run a task
$task = new MyTask();

There is (obviously) no need for a worker, since the worker is already running in the same process.

This is basically the same as executing the task directly.

Waiting for a task to finish

The InMemory adapter also implements the SynchronousWorkDispatcher interface, which allows to run tasks and fetch its result:

$result = $workDispatcher->runAndWait(new MyTask());