components/discardable_memory/public/mojom/discardable_shared_memory_manager.mojom

// Copyright 2016 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.

module discardable_memory.mojom;

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

// This interface is used for allocating discardable shared memory from browser
// process. For mus+ash, this service will live in mus process.
interface DiscardableSharedMemoryManager {
  // Allocate a locked discardable shared memory segment.
  AllocateLockedDiscardableSharedMemory(
      uint32 size,
      int32 id) => (mojo_base.mojom.UnsafeSharedMemoryRegion region);
  // Notify manager that a memory segment has been deleted.
  DeletedDiscardableSharedMemory(int32 id);
};