| /* |
| * Copyright (C) 2015 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 android.Manifest; |
| import android.app.ActivityManager; |
| import android.content.pm.PackageManager; |
| import android.os.SystemClock; |
| import android.os.UserHandle; |
| import android.util.TimeUtils; |
| import android.util.proto.ProtoOutputStream; |
| import android.util.proto.ProtoUtils; |
| |
| import com.android.internal.annotations.GuardedBy; |
| |
| /** |
| * Overall information about a uid that has actively running processes. |
| */ |
| public final class UidRecord { |
| final int uid; |
| private int mCurProcState; |
| int setProcState = ActivityManager.PROCESS_STATE_NONEXISTENT; |
| int curCapability; |
| int setCapability; |
| long lastBackgroundTime; |
| boolean ephemeral; |
| boolean foregroundServices; |
| boolean curWhitelist; |
| boolean setWhitelist; |
| boolean idle; |
| boolean setIdle; |
| int numProcs; |
| |
| /** |
| * Sequence number associated with the {@link #mCurProcState}. This is incremented using |
| * {@link ActivityManagerService#mProcStateSeqCounter} |
| * when {@link #mCurProcState} changes from background to foreground or vice versa. |
| */ |
| @GuardedBy("networkStateUpdate") |
| long curProcStateSeq; |
| |
| /** |
| * Last seq number for which NetworkPolicyManagerService notified ActivityManagerService that |
| * network policies rules were updated. |
| */ |
| @GuardedBy("networkStateUpdate") |
| long lastNetworkUpdatedProcStateSeq; |
| |
| /** |
| * Last seq number for which AcitivityManagerService dispatched uid state change to |
| * NetworkPolicyManagerService. |
| */ |
| @GuardedBy("networkStateUpdate") |
| long lastDispatchedProcStateSeq; |
| |
| /** |
| * Indicates if any thread is waiting for network rules to get updated for {@link #uid}. |
| */ |
| volatile boolean waitingForNetwork; |
| |
| /** |
| * Indicates whether this uid has internet permission or not. |
| */ |
| volatile boolean hasInternetPermission; |
| |
| /** |
| * This object is used for waiting for the network state to get updated. |
| */ |
| final Object networkStateLock = new Object(); |
| |
| static final int CHANGE_PROCSTATE = 0; |
| static final int CHANGE_GONE = 1<<0; |
| static final int CHANGE_IDLE = 1<<1; |
| static final int CHANGE_ACTIVE = 1<<2; |
| static final int CHANGE_CACHED = 1<<3; |
| static final int CHANGE_UNCACHED = 1<<4; |
| |
| // Keep the enum lists in sync |
| private static int[] ORIG_ENUMS = new int[] { |
| CHANGE_GONE, |
| CHANGE_IDLE, |
| CHANGE_ACTIVE, |
| CHANGE_CACHED, |
| CHANGE_UNCACHED, |
| }; |
| private static int[] PROTO_ENUMS = new int[] { |
| UidRecordProto.CHANGE_GONE, |
| UidRecordProto.CHANGE_IDLE, |
| UidRecordProto.CHANGE_ACTIVE, |
| UidRecordProto.CHANGE_CACHED, |
| UidRecordProto.CHANGE_UNCACHED, |
| }; |
| |
| static final class ChangeItem { |
| UidRecord uidRecord; |
| int uid; |
| int change; |
| int processState; |
| int capability; |
| boolean ephemeral; |
| long procStateSeq; |
| } |
| |
| ChangeItem pendingChange; |
| int lastReportedChange; |
| |
| public UidRecord(int _uid) { |
| uid = _uid; |
| idle = true; |
| reset(); |
| } |
| |
| public int getCurProcState() { |
| return mCurProcState; |
| } |
| |
| public void setCurProcState(int curProcState) { |
| mCurProcState = curProcState; |
| } |
| |
| public void reset() { |
| setCurProcState(ActivityManager.PROCESS_STATE_CACHED_EMPTY); |
| foregroundServices = false; |
| curCapability = 0; |
| |
| } |
| |
| public void updateHasInternetPermission() { |
| hasInternetPermission = ActivityManager.checkUidPermission(Manifest.permission.INTERNET, |
| uid) == PackageManager.PERMISSION_GRANTED; |
| } |
| |
| /** |
| * If the change being dispatched is not CHANGE_GONE (not interested in |
| * these changes), then update the {@link #lastDispatchedProcStateSeq} with |
| * {@link #curProcStateSeq}. |
| */ |
| public void updateLastDispatchedProcStateSeq(int changeToDispatch) { |
| if ((changeToDispatch & CHANGE_GONE) == 0) { |
| lastDispatchedProcStateSeq = curProcStateSeq; |
| } |
| } |
| |
| |
| void dumpDebug(ProtoOutputStream proto, long fieldId) { |
| long token = proto.start(fieldId); |
| proto.write(UidRecordProto.UID, uid); |
| proto.write(UidRecordProto.CURRENT, ProcessList.makeProcStateProtoEnum(mCurProcState)); |
| proto.write(UidRecordProto.EPHEMERAL, ephemeral); |
| proto.write(UidRecordProto.FG_SERVICES, foregroundServices); |
| proto.write(UidRecordProto.WHILELIST, curWhitelist); |
| ProtoUtils.toDuration(proto, UidRecordProto.LAST_BACKGROUND_TIME, |
| lastBackgroundTime, SystemClock.elapsedRealtime()); |
| proto.write(UidRecordProto.IDLE, idle); |
| if (lastReportedChange != 0) { |
| ProtoUtils.writeBitWiseFlagsToProtoEnum(proto, UidRecordProto.LAST_REPORTED_CHANGES, |
| lastReportedChange, ORIG_ENUMS, PROTO_ENUMS); |
| } |
| proto.write(UidRecordProto.NUM_PROCS, numProcs); |
| |
| long seqToken = proto.start(UidRecordProto.NETWORK_STATE_UPDATE); |
| proto.write(UidRecordProto.ProcStateSequence.CURURENT, curProcStateSeq); |
| proto.write(UidRecordProto.ProcStateSequence.LAST_NETWORK_UPDATED, |
| lastNetworkUpdatedProcStateSeq); |
| proto.write(UidRecordProto.ProcStateSequence.LAST_DISPATCHED, lastDispatchedProcStateSeq); |
| proto.end(seqToken); |
| |
| proto.end(token); |
| } |
| |
| public String toString() { |
| StringBuilder sb = new StringBuilder(128); |
| sb.append("UidRecord{"); |
| sb.append(Integer.toHexString(System.identityHashCode(this))); |
| sb.append(' '); |
| UserHandle.formatUid(sb, uid); |
| sb.append(' '); |
| sb.append(ProcessList.makeProcStateString(mCurProcState)); |
| if (ephemeral) { |
| sb.append(" ephemeral"); |
| } |
| if (foregroundServices) { |
| sb.append(" fgServices"); |
| } |
| if (curWhitelist) { |
| sb.append(" whitelist"); |
| } |
| if (lastBackgroundTime > 0) { |
| sb.append(" bg:"); |
| TimeUtils.formatDuration(SystemClock.elapsedRealtime()-lastBackgroundTime, sb); |
| } |
| if (idle) { |
| sb.append(" idle"); |
| } |
| if (lastReportedChange != 0) { |
| sb.append(" change:"); |
| boolean printed = false; |
| if ((lastReportedChange & CHANGE_GONE) != 0) { |
| printed = true; |
| sb.append("gone"); |
| } |
| if ((lastReportedChange & CHANGE_IDLE) != 0) { |
| if (printed) { |
| sb.append("|"); |
| } |
| printed = true; |
| sb.append("idle"); |
| } |
| if ((lastReportedChange & CHANGE_ACTIVE) != 0) { |
| if (printed) { |
| sb.append("|"); |
| } |
| printed = true; |
| sb.append("active"); |
| } |
| if ((lastReportedChange & CHANGE_CACHED) != 0) { |
| if (printed) { |
| sb.append("|"); |
| } |
| printed = true; |
| sb.append("cached"); |
| } |
| if ((lastReportedChange & CHANGE_UNCACHED) != 0) { |
| if (printed) { |
| sb.append("|"); |
| } |
| sb.append("uncached"); |
| } |
| } |
| sb.append(" procs:"); |
| sb.append(numProcs); |
| sb.append(" seq("); |
| sb.append(curProcStateSeq); |
| sb.append(","); |
| sb.append(lastNetworkUpdatedProcStateSeq); |
| sb.append(","); |
| sb.append(lastDispatchedProcStateSeq); |
| sb.append(")}"); |
| return sb.toString(); |
| } |
| } |