core/proto/android/app/activitymanager.proto

/*
 * Copyright (C) 2017 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

syntax = "proto2";

package android.app;

option java_multiple_files = true;

// ActivityManager.java PROCESS_STATEs
enum ProcessState {
  // Order matters for process states, so values have been spaced to provide
  // room for future additions.

  // Not a real process state.
  PROCESS_STATE_UNKNOWN = -100;
  // Process is a persistent system process.
  PROCESS_STATE_PERSISTENT = 0;
  // Process is a persistent system process and is doing UI.
  PROCESS_STATE_PERSISTENT_UI = 100;
  // Process is hosting the current top activities. Note that this covers
  // all activities that are visible to the user.
  PROCESS_STATE_TOP = 200;
  // Process is hosting a foreground service due to a system binding.
  PROCESS_STATE_BOUND_FOREGROUND_SERVICE = 300;
  // Process is hosting a foreground service.
  PROCESS_STATE_FOREGROUND_SERVICE = 400;
  // Same as PROCESS_STATE_TOP but while device is sleeping.
  PROCESS_STATE_TOP_SLEEPING = 500;
  // Process is important to the user, and something they are aware of.
  PROCESS_STATE_IMPORTANT_FOREGROUND = 600;
  // Process is important to the user, but not something they are aware of.
  PROCESS_STATE_IMPORTANT_BACKGROUND = 700;
  // Process is in the background transient so we will try to keep running.
  PROCESS_STATE_TRANSIENT_BACKGROUND = 800;
  // Process is in the background running a backup/restore operation.
  PROCESS_STATE_BACKUP = 900;
  // Process is in the background, but it can't restore its state so we want
  // to try to avoid killing it.
  PROCESS_STATE_HEAVY_WEIGHT = 1000;
  // Process is in the background running a service. Unlike oom_adj, this
  // level is used for both the normal running in background state and the
  // executing operations state.
  PROCESS_STATE_SERVICE = 1100;
  // Process is in the background running a receiver. Note that from the
  // perspective of oom_adj, receivers run at a higher foreground level, but
  // for our prioritization here that is not necessary and putting them
  // below services means many fewer changes in some process states as they
  // receive broadcasts.
  PROCESS_STATE_RECEIVER = 1200;
  // Process is in the background but hosts the home activity.
  PROCESS_STATE_HOME = 1300;
  // Process is in the background but hosts the last shown activity.
  PROCESS_STATE_LAST_ACTIVITY = 1400;
  // Process is being cached for later use and contains activities.
  PROCESS_STATE_CACHED_ACTIVITY = 1500;
  // Process is being cached for later use and is a client of another cached
  // process that contains activities.
  PROCESS_STATE_CACHED_ACTIVITY_CLIENT = 1600;
  // Process is being cached for later use and is empty.
  PROCESS_STATE_CACHED_EMPTY = 1700;
  // Process does not exist.
  PROCESS_STATE_NONEXISTENT = 1800;
}