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      1 /*
      2  * Copyright (C) 2006 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.android.server.am;
     18 
     19 import android.util.ArraySet;
     20 import com.android.internal.app.ProcessStats;
     21 import com.android.internal.os.BatteryStatsImpl;
     22 
     23 import android.app.ActivityManager;
     24 import android.app.Dialog;
     25 import android.app.IApplicationThread;
     26 import android.app.IInstrumentationWatcher;
     27 import android.app.IUiAutomationConnection;
     28 import android.content.ComponentName;
     29 import android.content.Context;
     30 import android.content.pm.ApplicationInfo;
     31 import android.content.res.CompatibilityInfo;
     32 import android.os.Bundle;
     33 import android.os.IBinder;
     34 import android.os.Process;
     35 import android.os.SystemClock;
     36 import android.os.UserHandle;
     37 import android.util.ArrayMap;
     38 import android.util.PrintWriterPrinter;
     39 import android.util.TimeUtils;
     40 
     41 import java.io.PrintWriter;
     42 import java.util.ArrayList;
     43 
     44 /**
     45  * Full information about a particular process that
     46  * is currently running.
     47  */
     48 final class ProcessRecord {
     49     final BatteryStatsImpl.Uid.Proc batteryStats; // where to collect runtime statistics
     50     final ApplicationInfo info; // all about the first app in the process
     51     final boolean isolated;     // true if this is a special isolated process
     52     final int uid;              // uid of process; may be different from 'info' if isolated
     53     final int userId;           // user of process.
     54     final String processName;   // name of the process
     55     // List of packages running in the process
     56     final ArrayMap<String, ProcessStats.ProcessState> pkgList
     57             = new ArrayMap<String, ProcessStats.ProcessState>();
     58     IApplicationThread thread;  // the actual proc...  may be null only if
     59                                 // 'persistent' is true (in which case we
     60                                 // are in the process of launching the app)
     61     ProcessStats.ProcessState baseProcessTracker;
     62     int pid;                    // The process of this application; 0 if none
     63     boolean starting;           // True if the process is being started
     64     long lastActivityTime;      // For managing the LRU list
     65     long lastPssTime;           // Last time we retrieved PSS data
     66     long nextPssTime;           // Next time we want to request PSS data
     67     long lastStateTime;         // Last time setProcState changed
     68     long initialIdlePss;        // Initial memory pss of process for idle maintenance.
     69     long lastPss;               // Last computed memory pss.
     70     long lastCachedPss;         // Last computed pss when in cached state.
     71     int maxAdj;                 // Maximum OOM adjustment for this process
     72     int curRawAdj;              // Current OOM unlimited adjustment for this process
     73     int setRawAdj;              // Last set OOM unlimited adjustment for this process
     74     int curAdj;                 // Current OOM adjustment for this process
     75     int setAdj;                 // Last set OOM adjustment for this process
     76     int curSchedGroup;          // Currently desired scheduling class
     77     int setSchedGroup;          // Last set to background scheduling class
     78     int trimMemoryLevel;        // Last selected memory trimming level
     79     int memImportance;          // Importance constant computed from curAdj
     80     int curProcState = -1;      // Currently computed process state: ActivityManager.PROCESS_STATE_*
     81     int repProcState = -1;      // Last reported process state
     82     int setProcState = -1;      // Last set process state in process tracker
     83     int pssProcState = -1;      // The proc state we are currently requesting pss for
     84     boolean serviceb;           // Process currently is on the service B list
     85     boolean serviceHighRam;     // We are forcing to service B list due to its RAM use
     86     boolean keeping;            // Actively running code so don't kill due to that?
     87     boolean setIsForeground;    // Running foreground UI when last set?
     88     boolean notCachedSinceIdle; // Has this process not been in a cached state since last idle?
     89     boolean hasActivities;      // Are there any activities running in this process?
     90     boolean hasClientActivities;  // Are there any client services with activities?
     91     boolean hasStartedServices; // Are there any started services running in this process?
     92     boolean foregroundServices; // Running any services that are foreground?
     93     boolean foregroundActivities; // Running any activities that are foreground?
     94     boolean systemNoUi;         // This is a system process, but not currently showing UI.
     95     boolean hasShownUi;         // Has UI been shown in this process since it was started?
     96     boolean pendingUiClean;     // Want to clean up resources from showing UI?
     97     boolean hasAboveClient;     // Bound using BIND_ABOVE_CLIENT, so want to be lower
     98     boolean bad;                // True if disabled in the bad process list
     99     boolean killedByAm;         // True when proc has been killed by activity manager, not for RAM
    100     boolean procStateChanged;   // Keep track of whether we changed 'setAdj'.
    101     String waitingToKill;       // Process is waiting to be killed when in the bg, and reason
    102     IBinder forcingToForeground;// Token that is forcing this process to be foreground
    103     int adjSeq;                 // Sequence id for identifying oom_adj assignment cycles
    104     int lruSeq;                 // Sequence id for identifying LRU update cycles
    105     CompatibilityInfo compat;   // last used compatibility mode
    106     IBinder.DeathRecipient deathRecipient; // Who is watching for the death.
    107     ComponentName instrumentationClass;// class installed to instrument app
    108     ApplicationInfo instrumentationInfo; // the application being instrumented
    109     String instrumentationProfileFile; // where to save profiling
    110     IInstrumentationWatcher instrumentationWatcher; // who is waiting
    111     IUiAutomationConnection instrumentationUiAutomationConnection; // Connection to use the UI introspection APIs.
    112     Bundle instrumentationArguments;// as given to us
    113     ComponentName instrumentationResultClass;// copy of instrumentationClass
    114     boolean usingWrapper;       // Set to true when process was launched with a wrapper attached
    115     BroadcastRecord curReceiver;// receiver currently running in the app
    116     long lastWakeTime;          // How long proc held wake lock at last check
    117     long lastCpuTime;           // How long proc has run CPU at last check
    118     long curCpuTime;            // How long proc has run CPU most recently
    119     long lastRequestedGc;       // When we last asked the app to do a gc
    120     long lastLowMemory;         // When we last told the app that memory is low
    121     boolean reportLowMemory;    // Set to true when waiting to report low mem
    122     boolean empty;              // Is this an empty background process?
    123     boolean cached;             // Is this a cached process?
    124     String adjType;             // Debugging: primary thing impacting oom_adj.
    125     int adjTypeCode;            // Debugging: adj code to report to app.
    126     Object adjSource;           // Debugging: option dependent object.
    127     int adjSourceOom;           // Debugging: oom_adj of adjSource's process.
    128     Object adjTarget;           // Debugging: target component impacting oom_adj.
    129 
    130     // contains HistoryRecord objects
    131     final ArrayList<ActivityRecord> activities = new ArrayList<ActivityRecord>();
    132     // all ServiceRecord running in this process
    133     final ArraySet<ServiceRecord> services = new ArraySet<ServiceRecord>();
    134     // services that are currently executing code (need to remain foreground).
    135     final ArraySet<ServiceRecord> executingServices
    136              = new ArraySet<ServiceRecord>();
    137     // All ConnectionRecord this process holds
    138     final ArraySet<ConnectionRecord> connections
    139             = new ArraySet<ConnectionRecord>();
    140     // all IIntentReceivers that are registered from this process.
    141     final ArraySet<ReceiverList> receivers = new ArraySet<ReceiverList>();
    142     // class (String) -> ContentProviderRecord
    143     final ArrayMap<String, ContentProviderRecord> pubProviders
    144             = new ArrayMap<String, ContentProviderRecord>();
    145     // All ContentProviderRecord process is using
    146     final ArrayList<ContentProviderConnection> conProviders
    147             = new ArrayList<ContentProviderConnection>();
    148 
    149     boolean execServicesFg;     // do we need to be executing services in the foreground?
    150     boolean persistent;         // always keep this application running?
    151     boolean crashing;           // are we in the process of crashing?
    152     Dialog crashDialog;         // dialog being displayed due to crash.
    153     boolean forceCrashReport;   // suppress normal auto-dismiss of crash dialog & report UI?
    154     boolean notResponding;      // does the app have a not responding dialog?
    155     Dialog anrDialog;           // dialog being displayed due to app not resp.
    156     boolean removed;            // has app package been removed from device?
    157     boolean debugging;          // was app launched for debugging?
    158     boolean waitedForDebugger;  // has process show wait for debugger dialog?
    159     Dialog waitDialog;          // current wait for debugger dialog
    160 
    161     String shortStringName;     // caching of toShortString() result.
    162     String stringName;          // caching of toString() result.
    163 
    164     // These reports are generated & stored when an app gets into an error condition.
    165     // They will be "null" when all is OK.
    166     ActivityManager.ProcessErrorStateInfo crashingReport;
    167     ActivityManager.ProcessErrorStateInfo notRespondingReport;
    168 
    169     // Who will be notified of the error. This is usually an activity in the
    170     // app that installed the package.
    171     ComponentName errorReportReceiver;
    172 
    173     void dump(PrintWriter pw, String prefix) {
    174         final long now = SystemClock.uptimeMillis();
    175 
    176         pw.print(prefix); pw.print("user #"); pw.print(userId);
    177                 pw.print(" uid="); pw.print(info.uid);
    178         if (uid != info.uid) {
    179             pw.print(" ISOLATED uid="); pw.print(uid);
    180         }
    181         pw.println();
    182         if (info.className != null) {
    183             pw.print(prefix); pw.print("class="); pw.println(info.className);
    184         }
    185         if (info.manageSpaceActivityName != null) {
    186             pw.print(prefix); pw.print("manageSpaceActivityName=");
    187             pw.println(info.manageSpaceActivityName);
    188         }
    189         pw.print(prefix); pw.print("dir="); pw.print(info.sourceDir);
    190                 pw.print(" publicDir="); pw.print(info.publicSourceDir);
    191                 pw.print(" data="); pw.println(info.dataDir);
    192         pw.print(prefix); pw.print("packageList={");
    193         for (int i=0; i<pkgList.size(); i++) {
    194             if (i > 0) pw.print(", ");
    195             pw.print(pkgList.keyAt(i));
    196         }
    197         pw.println("}");
    198         pw.print(prefix); pw.print("compat="); pw.println(compat);
    199         if (instrumentationClass != null || instrumentationProfileFile != null
    200                 || instrumentationArguments != null) {
    201             pw.print(prefix); pw.print("instrumentationClass=");
    202                     pw.print(instrumentationClass);
    203                     pw.print(" instrumentationProfileFile=");
    204                     pw.println(instrumentationProfileFile);
    205             pw.print(prefix); pw.print("instrumentationArguments=");
    206                     pw.println(instrumentationArguments);
    207             pw.print(prefix); pw.print("instrumentationInfo=");
    208                     pw.println(instrumentationInfo);
    209             if (instrumentationInfo != null) {
    210                 instrumentationInfo.dump(new PrintWriterPrinter(pw), prefix + "  ");
    211             }
    212         }
    213         pw.print(prefix); pw.print("thread="); pw.println(thread);
    214         pw.print(prefix); pw.print("pid="); pw.print(pid); pw.print(" starting=");
    215                 pw.println(starting);
    216         pw.print(prefix); pw.print("lastActivityTime=");
    217                 TimeUtils.formatDuration(lastActivityTime, now, pw);
    218                 pw.print(" lastPssTime=");
    219                 TimeUtils.formatDuration(lastPssTime, now, pw);
    220                 pw.print(" nextPssTime=");
    221                 TimeUtils.formatDuration(nextPssTime, now, pw);
    222                 pw.println();
    223         pw.print(prefix); pw.print("adjSeq="); pw.print(adjSeq);
    224                 pw.print(" lruSeq="); pw.print(lruSeq);
    225                 pw.print(" lastPss="); pw.print(lastPss);
    226                 pw.print(" lastCachedPss="); pw.println(lastCachedPss);
    227         pw.print(prefix); pw.print("keeping="); pw.print(keeping);
    228                 pw.print(" cached="); pw.print(cached);
    229                 pw.print(" empty="); pw.println(empty);
    230         if (serviceb) {
    231             pw.print(prefix); pw.print("serviceb="); pw.print(serviceb);
    232                     pw.print(" serviceHighRam="); pw.println(serviceHighRam);
    233         }
    234         if (notCachedSinceIdle) {
    235             pw.print(prefix); pw.print("notCachedSinceIdle="); pw.print(notCachedSinceIdle);
    236                     pw.print(" initialIdlePss="); pw.println(initialIdlePss);
    237         }
    238         pw.print(prefix); pw.print("oom: max="); pw.print(maxAdj);
    239                 pw.print(" curRaw="); pw.print(curRawAdj);
    240                 pw.print(" setRaw="); pw.print(setRawAdj);
    241                 pw.print(" cur="); pw.print(curAdj);
    242                 pw.print(" set="); pw.println(setAdj);
    243         pw.print(prefix); pw.print("curSchedGroup="); pw.print(curSchedGroup);
    244                 pw.print(" setSchedGroup="); pw.print(setSchedGroup);
    245                 pw.print(" systemNoUi="); pw.print(systemNoUi);
    246                 pw.print(" trimMemoryLevel="); pw.println(trimMemoryLevel);
    247         pw.print(prefix); pw.print("curProcState="); pw.print(curProcState);
    248                 pw.print(" repProcState="); pw.print(repProcState);
    249                 pw.print(" pssProcState="); pw.print(pssProcState);
    250                 pw.print(" setProcState="); pw.print(setProcState);
    251                 pw.print(" lastStateTime=");
    252                 TimeUtils.formatDuration(lastStateTime, now, pw);
    253                 pw.println();
    254         if (hasShownUi || pendingUiClean || hasAboveClient) {
    255             pw.print(prefix); pw.print("hasShownUi="); pw.print(hasShownUi);
    256                     pw.print(" pendingUiClean="); pw.print(pendingUiClean);
    257                     pw.print(" hasAboveClient="); pw.println(hasAboveClient);
    258         }
    259         if (setIsForeground || foregroundServices || forcingToForeground != null) {
    260             pw.print(prefix); pw.print("setIsForeground="); pw.print(setIsForeground);
    261                     pw.print(" foregroundServices="); pw.print(foregroundServices);
    262                     pw.print(" forcingToForeground="); pw.println(forcingToForeground);
    263         }
    264         if (persistent || removed) {
    265             pw.print(prefix); pw.print("persistent="); pw.print(persistent);
    266                     pw.print(" removed="); pw.println(removed);
    267         }
    268         if (hasActivities || hasClientActivities || foregroundActivities) {
    269             pw.print(prefix); pw.print("hasActivities="); pw.print(hasActivities);
    270                     pw.print(" hasClientActivities="); pw.print(hasClientActivities);
    271                     pw.print(" foregroundActivities="); pw.println(foregroundActivities);
    272         }
    273         if (hasStartedServices) {
    274             pw.print(prefix); pw.print("hasStartedServices="); pw.println(hasStartedServices);
    275         }
    276         if (!keeping) {
    277             long wtime;
    278             synchronized (batteryStats.getBatteryStats()) {
    279                 wtime = batteryStats.getBatteryStats().getProcessWakeTime(info.uid,
    280                         pid, SystemClock.elapsedRealtime());
    281             }
    282             long timeUsed = wtime - lastWakeTime;
    283             pw.print(prefix); pw.print("lastWakeTime="); pw.print(lastWakeTime);
    284                     pw.print(" timeUsed=");
    285                     TimeUtils.formatDuration(timeUsed, pw); pw.println("");
    286             pw.print(prefix); pw.print("lastCpuTime="); pw.print(lastCpuTime);
    287                     pw.print(" timeUsed=");
    288                     TimeUtils.formatDuration(curCpuTime-lastCpuTime, pw); pw.println("");
    289         }
    290         pw.print(prefix); pw.print("lastRequestedGc=");
    291                 TimeUtils.formatDuration(lastRequestedGc, now, pw);
    292                 pw.print(" lastLowMemory=");
    293                 TimeUtils.formatDuration(lastLowMemory, now, pw);
    294                 pw.print(" reportLowMemory="); pw.println(reportLowMemory);
    295         if (killedByAm || waitingToKill != null) {
    296             pw.print(prefix); pw.print("killedByAm="); pw.print(killedByAm);
    297                     pw.print(" waitingToKill="); pw.println(waitingToKill);
    298         }
    299         if (debugging || crashing || crashDialog != null || notResponding
    300                 || anrDialog != null || bad) {
    301             pw.print(prefix); pw.print("debugging="); pw.print(debugging);
    302                     pw.print(" crashing="); pw.print(crashing);
    303                     pw.print(" "); pw.print(crashDialog);
    304                     pw.print(" notResponding="); pw.print(notResponding);
    305                     pw.print(" " ); pw.print(anrDialog);
    306                     pw.print(" bad="); pw.print(bad);
    307 
    308                     // crashing or notResponding is always set before errorReportReceiver
    309                     if (errorReportReceiver != null) {
    310                         pw.print(" errorReportReceiver=");
    311                         pw.print(errorReportReceiver.flattenToShortString());
    312                     }
    313                     pw.println();
    314         }
    315         if (activities.size() > 0) {
    316             pw.print(prefix); pw.println("Activities:");
    317             for (int i=0; i<activities.size(); i++) {
    318                 pw.print(prefix); pw.print("  - "); pw.println(activities.get(i));
    319             }
    320         }
    321         if (services.size() > 0) {
    322             pw.print(prefix); pw.println("Services:");
    323             for (int i=0; i<services.size(); i++) {
    324                 pw.print(prefix); pw.print("  - "); pw.println(services.valueAt(i));
    325             }
    326         }
    327         if (executingServices.size() > 0) {
    328             pw.print(prefix); pw.print("Executing Services (fg=");
    329             pw.print(execServicesFg); pw.println(")");
    330             for (int i=0; i<executingServices.size(); i++) {
    331                 pw.print(prefix); pw.print("  - "); pw.println(executingServices.valueAt(i));
    332             }
    333         }
    334         if (connections.size() > 0) {
    335             pw.print(prefix); pw.println("Connections:");
    336             for (int i=0; i<connections.size(); i++) {
    337                 pw.print(prefix); pw.print("  - "); pw.println(connections.valueAt(i));
    338             }
    339         }
    340         if (pubProviders.size() > 0) {
    341             pw.print(prefix); pw.println("Published Providers:");
    342             for (int i=0; i<pubProviders.size(); i++) {
    343                 pw.print(prefix); pw.print("  - "); pw.println(pubProviders.keyAt(i));
    344                 pw.print(prefix); pw.print("    -> "); pw.println(pubProviders.valueAt(i));
    345             }
    346         }
    347         if (conProviders.size() > 0) {
    348             pw.print(prefix); pw.println("Connected Providers:");
    349             for (int i=0; i<conProviders.size(); i++) {
    350                 pw.print(prefix); pw.print("  - "); pw.println(conProviders.get(i).toShortString());
    351             }
    352         }
    353         if (curReceiver != null) {
    354             pw.print(prefix); pw.print("curReceiver="); pw.println(curReceiver);
    355         }
    356         if (receivers.size() > 0) {
    357             pw.print(prefix); pw.println("Receivers:");
    358             for (int i=0; i<receivers.size(); i++) {
    359                 pw.print(prefix); pw.print("  - "); pw.println(receivers.valueAt(i));
    360             }
    361         }
    362     }
    363 
    364     ProcessRecord(BatteryStatsImpl.Uid.Proc _batteryStats, ApplicationInfo _info,
    365             String _processName, int _uid) {
    366         batteryStats = _batteryStats;
    367         info = _info;
    368         isolated = _info.uid != _uid;
    369         uid = _uid;
    370         userId = UserHandle.getUserId(_uid);
    371         processName = _processName;
    372         pkgList.put(_info.packageName, null);
    373         maxAdj = ProcessList.UNKNOWN_ADJ;
    374         curRawAdj = setRawAdj = -100;
    375         curAdj = setAdj = -100;
    376         persistent = false;
    377         removed = false;
    378         lastStateTime = lastPssTime = nextPssTime = SystemClock.uptimeMillis();
    379     }
    380 
    381     public void setPid(int _pid) {
    382         pid = _pid;
    383         shortStringName = null;
    384         stringName = null;
    385     }
    386 
    387     public void makeActive(IApplicationThread _thread, ProcessStatsService tracker) {
    388         if (thread == null) {
    389             final ProcessStats.ProcessState origBase = baseProcessTracker;
    390             if (origBase != null) {
    391                 origBase.setState(ProcessStats.STATE_NOTHING,
    392                         tracker.getMemFactorLocked(), SystemClock.uptimeMillis(), pkgList);
    393                 origBase.makeInactive();
    394             }
    395             baseProcessTracker = tracker.getProcessStateLocked(info.packageName, info.uid,
    396                     processName);
    397             baseProcessTracker.makeActive();
    398             for (int i=0; i<pkgList.size(); i++) {
    399                 ProcessStats.ProcessState ps = pkgList.valueAt(i);
    400                 if (ps != null && ps != origBase) {
    401                     ps.makeInactive();
    402                 }
    403                 ps = tracker.getProcessStateLocked(pkgList.keyAt(i), info.uid, processName);
    404                 if (ps != baseProcessTracker) {
    405                     ps.makeActive();
    406                 }
    407                 pkgList.setValueAt(i, ps);
    408             }
    409         }
    410         thread = _thread;
    411     }
    412 
    413     public void makeInactive(ProcessStatsService tracker) {
    414         thread = null;
    415         final ProcessStats.ProcessState origBase = baseProcessTracker;
    416         if (origBase != null) {
    417             if (origBase != null) {
    418                 origBase.setState(ProcessStats.STATE_NOTHING,
    419                         tracker.getMemFactorLocked(), SystemClock.uptimeMillis(), pkgList);
    420                 origBase.makeInactive();
    421             }
    422             baseProcessTracker = null;
    423             for (int i=0; i<pkgList.size(); i++) {
    424                 ProcessStats.ProcessState ps = pkgList.valueAt(i);
    425                 if (ps != null && ps != origBase) {
    426                     ps.makeInactive();
    427                 }
    428                 pkgList.setValueAt(i, null);
    429             }
    430         }
    431     }
    432 
    433     /**
    434      * This method returns true if any of the activities within the process record are interesting
    435      * to the user. See HistoryRecord.isInterestingToUserLocked()
    436      */
    437     public boolean isInterestingToUserLocked() {
    438         final int size = activities.size();
    439         for (int i = 0 ; i < size ; i++) {
    440             ActivityRecord r = activities.get(i);
    441             if (r.isInterestingToUserLocked()) {
    442                 return true;
    443             }
    444         }
    445         return false;
    446     }
    447 
    448     public void stopFreezingAllLocked() {
    449         int i = activities.size();
    450         while (i > 0) {
    451             i--;
    452             activities.get(i).stopFreezingScreenLocked(true);
    453         }
    454     }
    455 
    456     public void unlinkDeathRecipient() {
    457         if (deathRecipient != null && thread != null) {
    458             thread.asBinder().unlinkToDeath(deathRecipient, 0);
    459         }
    460         deathRecipient = null;
    461     }
    462 
    463     void updateHasAboveClientLocked() {
    464         hasAboveClient = false;
    465         for (int i=connections.size()-1; i>=0; i--) {
    466             ConnectionRecord cr = connections.valueAt(i);
    467             if ((cr.flags&Context.BIND_ABOVE_CLIENT) != 0) {
    468                 hasAboveClient = true;
    469                 break;
    470             }
    471         }
    472     }
    473 
    474     int modifyRawOomAdj(int adj) {
    475         if (hasAboveClient) {
    476             // If this process has bound to any services with BIND_ABOVE_CLIENT,
    477             // then we need to drop its adjustment to be lower than the service's
    478             // in order to honor the request.  We want to drop it by one adjustment
    479             // level...  but there is special meaning applied to various levels so
    480             // we will skip some of them.
    481             if (adj < ProcessList.FOREGROUND_APP_ADJ) {
    482                 // System process will not get dropped, ever
    483             } else if (adj < ProcessList.VISIBLE_APP_ADJ) {
    484                 adj = ProcessList.VISIBLE_APP_ADJ;
    485             } else if (adj < ProcessList.PERCEPTIBLE_APP_ADJ) {
    486                 adj = ProcessList.PERCEPTIBLE_APP_ADJ;
    487             } else if (adj < ProcessList.CACHED_APP_MIN_ADJ) {
    488                 adj = ProcessList.CACHED_APP_MIN_ADJ;
    489             } else if (adj < ProcessList.CACHED_APP_MAX_ADJ) {
    490                 adj++;
    491             }
    492         }
    493         return adj;
    494     }
    495 
    496     public String toShortString() {
    497         if (shortStringName != null) {
    498             return shortStringName;
    499         }
    500         StringBuilder sb = new StringBuilder(128);
    501         toShortString(sb);
    502         return shortStringName = sb.toString();
    503     }
    504 
    505     void toShortString(StringBuilder sb) {
    506         sb.append(pid);
    507         sb.append(':');
    508         sb.append(processName);
    509         sb.append('/');
    510         if (info.uid < Process.FIRST_APPLICATION_UID) {
    511             sb.append(uid);
    512         } else {
    513             sb.append('u');
    514             sb.append(userId);
    515             int appId = UserHandle.getAppId(info.uid);
    516             if (appId >= Process.FIRST_APPLICATION_UID) {
    517                 sb.append('a');
    518                 sb.append(appId - Process.FIRST_APPLICATION_UID);
    519             } else {
    520                 sb.append('s');
    521                 sb.append(appId);
    522             }
    523             if (uid != info.uid) {
    524                 sb.append('i');
    525                 sb.append(UserHandle.getAppId(uid) - Process.FIRST_ISOLATED_UID);
    526             }
    527         }
    528     }
    529 
    530     public String toString() {
    531         if (stringName != null) {
    532             return stringName;
    533         }
    534         StringBuilder sb = new StringBuilder(128);
    535         sb.append("ProcessRecord{");
    536         sb.append(Integer.toHexString(System.identityHashCode(this)));
    537         sb.append(' ');
    538         toShortString(sb);
    539         sb.append('}');
    540         return stringName = sb.toString();
    541     }
    542 
    543     public String makeAdjReason() {
    544         if (adjSource != null || adjTarget != null) {
    545             StringBuilder sb = new StringBuilder(128);
    546             sb.append(' ');
    547             if (adjTarget instanceof ComponentName) {
    548                 sb.append(((ComponentName)adjTarget).flattenToShortString());
    549             } else if (adjTarget != null) {
    550                 sb.append(adjTarget.toString());
    551             } else {
    552                 sb.append("{null}");
    553             }
    554             sb.append("<=");
    555             if (adjSource instanceof ProcessRecord) {
    556                 sb.append("Proc{");
    557                 sb.append(((ProcessRecord)adjSource).toShortString());
    558                 sb.append("}");
    559             } else if (adjSource != null) {
    560                 sb.append(adjSource.toString());
    561             } else {
    562                 sb.append("{null}");
    563             }
    564             return sb.toString();
    565         }
    566         return null;
    567     }
    568 
    569     /*
    570      *  Return true if package has been added false if not
    571      */
    572     public boolean addPackage(String pkg, ProcessStatsService tracker) {
    573         if (!pkgList.containsKey(pkg)) {
    574             if (baseProcessTracker != null) {
    575                 ProcessStats.ProcessState state = tracker.getProcessStateLocked(
    576                         pkg, info.uid, processName);
    577                 pkgList.put(pkg, state);
    578                 if (state != baseProcessTracker) {
    579                     state.makeActive();
    580                 }
    581             } else {
    582                 pkgList.put(pkg, null);
    583             }
    584             return true;
    585         }
    586         return false;
    587     }
    588 
    589     public int getSetAdjWithServices() {
    590         if (setAdj >= ProcessList.CACHED_APP_MIN_ADJ) {
    591             if (hasStartedServices) {
    592                 return ProcessList.SERVICE_B_ADJ;
    593             }
    594         }
    595         return setAdj;
    596     }
    597 
    598     public void forceProcessStateUpTo(int newState) {
    599         if (repProcState > newState) {
    600             curProcState = repProcState = newState;
    601         }
    602     }
    603 
    604     /*
    605      *  Delete all packages from list except the package indicated in info
    606      */
    607     public void resetPackageList(ProcessStatsService tracker) {
    608         final int N = pkgList.size();
    609         if (baseProcessTracker != null) {
    610             long now = SystemClock.uptimeMillis();
    611             baseProcessTracker.setState(ProcessStats.STATE_NOTHING,
    612                     tracker.getMemFactorLocked(), now, pkgList);
    613             if (N != 1) {
    614                 for (int i=0; i<N; i++) {
    615                     ProcessStats.ProcessState ps = pkgList.valueAt(i);
    616                     if (ps != null && ps != baseProcessTracker) {
    617                         ps.makeInactive();
    618                     }
    619 
    620                 }
    621                 pkgList.clear();
    622                 ProcessStats.ProcessState ps = tracker.getProcessStateLocked(
    623                         info.packageName, info.uid, processName);
    624                 pkgList.put(info.packageName, ps);
    625                 if (ps != baseProcessTracker) {
    626                     ps.makeActive();
    627                 }
    628             }
    629         } else if (N != 1) {
    630             pkgList.clear();
    631             pkgList.put(info.packageName, null);
    632         }
    633     }
    634 
    635     public String[] getPackageList() {
    636         int size = pkgList.size();
    637         if (size == 0) {
    638             return null;
    639         }
    640         String list[] = new String[size];
    641         for (int i=0; i<pkgList.size(); i++) {
    642             list[i] = pkgList.keyAt(i);
    643         }
    644         return list;
    645     }
    646 }
    647