| /* |
| * Copyright (C) 2012 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. |
| */ |
| |
| package com.android.server.am; |
| |
| import static com.android.server.am.ActivityManagerDebugConfig.TAG_AM; |
| import static com.android.server.am.ActivityManagerDebugConfig.TAG_WITH_CLASS_NAME; |
| |
| import android.app.IStopUserCallback; |
| import android.os.Trace; |
| import android.os.UserHandle; |
| import android.util.ArrayMap; |
| import android.util.Slog; |
| import android.util.proto.ProtoOutputStream; |
| |
| import com.android.internal.util.ProgressReporter; |
| |
| import java.io.PrintWriter; |
| import java.util.ArrayList; |
| |
| public final class UserState { |
| private static final String TAG = TAG_WITH_CLASS_NAME ? "UserState" : TAG_AM; |
| |
| // User is first coming up. |
| public final static int STATE_BOOTING = 0; |
| // User is in the locked state. |
| public final static int STATE_RUNNING_LOCKED = 1; |
| // User is in the unlocking state. |
| public final static int STATE_RUNNING_UNLOCKING = 2; |
| // User is in the running state. |
| public final static int STATE_RUNNING_UNLOCKED = 3; |
| // User is in the initial process of being stopped. |
| public final static int STATE_STOPPING = 4; |
| // User is in the final phase of stopping, sending Intent.ACTION_SHUTDOWN. |
| public final static int STATE_SHUTDOWN = 5; |
| |
| public final UserHandle mHandle; |
| public final ArrayList<IStopUserCallback> mStopCallbacks |
| = new ArrayList<IStopUserCallback>(); |
| public final ProgressReporter mUnlockProgress; |
| |
| public int state = STATE_BOOTING; |
| public int lastState = STATE_BOOTING; |
| public boolean switching; |
| public boolean tokenProvided; |
| |
| /** |
| * The last time that a provider was reported to usage stats as being brought to important |
| * foreground procstate. |
| * <p><strong>Important: </strong>Only access this field when holding ActivityManagerService |
| * lock. |
| */ |
| final ArrayMap<String,Long> mProviderLastReportedFg = new ArrayMap<>(); |
| |
| public UserState(UserHandle handle) { |
| mHandle = handle; |
| mUnlockProgress = new ProgressReporter(handle.getIdentifier()); |
| } |
| |
| public boolean setState(int oldState, int newState) { |
| if (state == oldState) { |
| setState(newState); |
| return true; |
| } else { |
| Slog.w(TAG, "Expected user " + mHandle.getIdentifier() + " in state " |
| + stateToString(oldState) + " but was in state " + stateToString(state)); |
| return false; |
| } |
| } |
| |
| public void setState(int newState) { |
| if (newState == state) { |
| return; |
| } |
| final int userId = mHandle.getIdentifier(); |
| if (state != STATE_BOOTING) { |
| Trace.asyncTraceEnd(Trace.TRACE_TAG_ACTIVITY_MANAGER, |
| stateToString(state) + " " + userId, userId); |
| } |
| if (newState != STATE_SHUTDOWN) { |
| Trace.asyncTraceBegin(Trace.TRACE_TAG_ACTIVITY_MANAGER, |
| stateToString(newState) + " " + userId, userId); |
| } |
| Slog.i(TAG, "User " + userId + " state changed from " |
| + stateToString(state) + " to " + stateToString(newState)); |
| EventLogTags.writeAmUserStateChanged(userId, newState); |
| lastState = state; |
| state = newState; |
| } |
| |
| public static String stateToString(int state) { |
| switch (state) { |
| case STATE_BOOTING: return "BOOTING"; |
| case STATE_RUNNING_LOCKED: return "RUNNING_LOCKED"; |
| case STATE_RUNNING_UNLOCKING: return "RUNNING_UNLOCKING"; |
| case STATE_RUNNING_UNLOCKED: return "RUNNING_UNLOCKED"; |
| case STATE_STOPPING: return "STOPPING"; |
| case STATE_SHUTDOWN: return "SHUTDOWN"; |
| default: return Integer.toString(state); |
| } |
| } |
| |
| public static int stateToProtoEnum(int state) { |
| switch (state) { |
| case STATE_BOOTING: return UserStateProto.STATE_BOOTING; |
| case STATE_RUNNING_LOCKED: return UserStateProto.STATE_RUNNING_LOCKED; |
| case STATE_RUNNING_UNLOCKING: return UserStateProto.STATE_RUNNING_UNLOCKING; |
| case STATE_RUNNING_UNLOCKED: return UserStateProto.STATE_RUNNING_UNLOCKED; |
| case STATE_STOPPING: return UserStateProto.STATE_STOPPING; |
| case STATE_SHUTDOWN: return UserStateProto.STATE_SHUTDOWN; |
| default: return state; |
| } |
| } |
| |
| void dump(String prefix, PrintWriter pw) { |
| pw.print(prefix); |
| pw.print("state="); pw.print(stateToString(state)); |
| if (switching) pw.print(" SWITCHING"); |
| pw.println(); |
| } |
| |
| void writeToProto(ProtoOutputStream proto, long fieldId) { |
| final long token = proto.start(fieldId); |
| proto.write(UserStateProto.STATE, stateToProtoEnum(state)); |
| proto.write(UserStateProto.SWITCHING, switching); |
| proto.end(token); |
| } |
| } |