mojo/proxy/mojo_proxy_test.test-mojom

// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

module mojo_proxy.test.mojom;

import "mojo/public/mojom/base/file.mojom";
import "mojo/public/mojom/base/shared_memory.mojom";

interface TestService {
  // Returns `x` unmodified. Used to exercise basic end-to-end communication
  // through a mojo_proxy instance.
  Echo(int32 x) => (int32 x);

  // Returns `x` scaled by an implementation-defined value. Used to exercise
  // basic end-to-end communication through a mojo_proxy instance with some
  // additional routing validation.
  Scale(int32 x) => (int32 scaled_x);

  // Reads a file's contents and sends back a new file with the same contents,
  // reversed. Used to exercise biridrectional platform handle transmission
  // through a mojo_proxy instance.
  FlipFile(mojo_base.mojom.File file) => (mojo_base.mojom.File reversed_file);

  // Reads a memory region's contents and sends back a new region with the
  // same contents, reversed. Used to exercise bidirectional Mojo shared buffer
  // transmission through a mojo_proxy instance.
  FlipMemory(mojo_base.mojom.ReadOnlySharedMemoryRegion region)
      => (mojo_base.mojom.ReadOnlySharedMemoryRegion region);

  // Binds another TestService pipe to the receiving instance. Used to exercise
  // message pipe transfer through a mojo_proxy instance, from host to target.
  BindReceiver(pending_receiver<TestService> receiver);

  // Binds another TestService pipe to the receiving instance and passes back
  // a corresponding remote. Used to exercise message pipe transfer through a
  // mojo_proxy instance, from target to host.
  BindNewRemote() => (pending_remote<TestService> remote);
};