// Copyright 2018 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// Top-level API of the Machine Learning Service: loading models for inference.

// NOTE: This mojom should be kept in sync with the copy in Chromium's repo in
// //chromeos/services/machine_learning/public/mojom/.
// Example: A backwards-compatible interface change and corresponding
// implementation change can be made here first, then replicated to the client
// (Chromium) later.

module chromeos.machine_learning.mojom;

import "ml/mojom/model.mojom";

// These values are persisted to logs. Entries should not be renumbered and
// numeric values should never be reused.
// Remove the kMax in favour of kMaxValue after Mojo uprev (crbug.com/909719)
enum LoadModelResult {
  OK = 0,
  MODEL_SPEC_ERROR = 1,
  LOAD_MODEL_ERROR = 2,
  kMax = LOAD_MODEL_ERROR,
};

// Top-level interface between Chromium and the ML Service daemon.
interface MachineLearningService {
  // The ModelId inside ModelSpec is used to specify the model to be loaded.
  LoadModel(ModelSpec spec, Model& request) => (LoadModelResult result);
};