| /* |
| * Copyright (C) 2018 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.app.ActivityManager; |
| import android.os.UserHandle; |
| import android.util.SparseArray; |
| import android.util.proto.ProtoOutputStream; |
| |
| import com.android.internal.annotations.CompositeRWLock; |
| import com.android.internal.annotations.GuardedBy; |
| |
| import java.io.PrintWriter; |
| |
| /** Class for tracking active uids for running processes. */ |
| final class ActiveUids { |
| |
| private final ActivityManagerService mService; |
| private final ActivityManagerGlobalLock mProcLock; |
| |
| private final boolean mPostChangesToAtm; |
| |
| @CompositeRWLock({"mService", "mProcLock"}) |
| private final SparseArray<UidRecord> mActiveUids = new SparseArray<>(); |
| |
| ActiveUids(ActivityManagerService service, boolean postChangesToAtm) { |
| mService = service; |
| mProcLock = service != null ? service.mProcLock : null; |
| mPostChangesToAtm = postChangesToAtm; |
| } |
| |
| @GuardedBy({"mService", "mProcLock"}) |
| void put(int uid, UidRecord value) { |
| mActiveUids.put(uid, value); |
| if (mPostChangesToAtm) { |
| mService.mAtmInternal.onUidActive(uid, value.getCurProcState()); |
| } |
| } |
| |
| @GuardedBy({"mService", "mProcLock"}) |
| void remove(int uid) { |
| mActiveUids.remove(uid); |
| if (mPostChangesToAtm) { |
| mService.mAtmInternal.onUidInactive(uid); |
| } |
| } |
| |
| @GuardedBy({"mService", "mProcLock"}) |
| void clear() { |
| mActiveUids.clear(); |
| // It is only called for a temporal container with mPostChangesToAtm == false or test case. |
| // So there is no need to notify activity task manager. |
| } |
| |
| @GuardedBy(anyOf = {"mService", "mProcLock"}) |
| UidRecord get(int uid) { |
| return mActiveUids.get(uid); |
| } |
| |
| @GuardedBy(anyOf = {"mService", "mProcLock"}) |
| int size() { |
| return mActiveUids.size(); |
| } |
| |
| @GuardedBy(anyOf = {"mService", "mProcLock"}) |
| UidRecord valueAt(int index) { |
| return mActiveUids.valueAt(index); |
| } |
| |
| @GuardedBy(anyOf = {"mService", "mProcLock"}) |
| int keyAt(int index) { |
| return mActiveUids.keyAt(index); |
| } |
| |
| @GuardedBy(anyOf = {"mService", "mProcLock"}) |
| int indexOfKey(int uid) { |
| return mActiveUids.indexOfKey(uid); |
| } |
| |
| @GuardedBy(anyOf = {"mService", "mProcLock"}) |
| boolean dump(final PrintWriter pw, String dumpPackage, int dumpAppId, |
| String header, boolean needSep) { |
| boolean printed = false; |
| for (int i = 0; i < mActiveUids.size(); i++) { |
| final UidRecord uidRec = mActiveUids.valueAt(i); |
| if (dumpPackage != null && UserHandle.getAppId(uidRec.getUid()) != dumpAppId) { |
| continue; |
| } |
| if (!printed) { |
| printed = true; |
| if (needSep) { |
| pw.println(); |
| } |
| pw.print(" "); pw.println(header); |
| } |
| pw.print(" UID "); UserHandle.formatUid(pw, uidRec.getUid()); |
| pw.print(": "); pw.println(uidRec); |
| pw.print(" curProcState="); pw.print(uidRec.getCurProcState()); |
| pw.print(" curCapability="); |
| ActivityManager.printCapabilitiesFull(pw, uidRec.getCurCapability()); |
| pw.println(); |
| uidRec.forEachProcess(app -> { |
| pw.print(" proc="); |
| pw.println(app); |
| }); |
| } |
| return printed; |
| } |
| |
| void dumpProto(ProtoOutputStream proto, String dumpPackage, int dumpAppId, long fieldId) { |
| for (int i = 0; i < mActiveUids.size(); i++) { |
| UidRecord uidRec = mActiveUids.valueAt(i); |
| if (dumpPackage != null && UserHandle.getAppId(uidRec.getUid()) != dumpAppId) { |
| continue; |
| } |
| uidRec.dumpDebug(proto, fieldId); |
| } |
| } |
| } |