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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.app.IActivityManager.ContentProviderHolder;
     20 import android.content.ComponentName;
     21 import android.content.pm.ApplicationInfo;
     22 import android.content.pm.ProviderInfo;
     23 import android.os.Process;
     24 
     25 import java.io.PrintWriter;
     26 import java.util.HashSet;
     27 
     28 class ContentProviderRecord extends ContentProviderHolder {
     29     // All attached clients
     30     final HashSet<ProcessRecord> clients = new HashSet<ProcessRecord>();
     31     final int uid;
     32     final ApplicationInfo appInfo;
     33     final ComponentName name;
     34     int externals;     // number of non-framework processes supported by this provider
     35     ProcessRecord proc; // if non-null, hosting process.
     36     ProcessRecord launchingApp; // if non-null, waiting for this app to be launched.
     37     String stringName;
     38 
     39     public ContentProviderRecord(ProviderInfo _info, ApplicationInfo ai, ComponentName _name) {
     40         super(_info);
     41         uid = ai.uid;
     42         appInfo = ai;
     43         name = _name;
     44         noReleaseNeeded = uid == 0 || uid == Process.SYSTEM_UID;
     45     }
     46 
     47     public ContentProviderRecord(ContentProviderRecord cpr) {
     48         super(cpr.info);
     49         uid = cpr.uid;
     50         appInfo = cpr.appInfo;
     51         name = cpr.name;
     52         noReleaseNeeded = cpr.noReleaseNeeded;
     53     }
     54 
     55     public boolean canRunHere(ProcessRecord app) {
     56         return (info.multiprocess || info.processName.equals(app.processName))
     57                 && (uid == Process.SYSTEM_UID || uid == app.info.uid);
     58     }
     59 
     60     void dump(PrintWriter pw, String prefix) {
     61         pw.print(prefix); pw.print("package=");
     62                 pw.print(info.applicationInfo.packageName);
     63                 pw.print(" process="); pw.println(info.processName);
     64         pw.print(prefix); pw.print("proc="); pw.println(proc);
     65         if (launchingApp != null) {
     66             pw.print(prefix); pw.print("launchingApp="); pw.println(launchingApp);
     67         }
     68         pw.print(prefix); pw.print("uid="); pw.print(uid);
     69                 pw.print(" provider="); pw.println(provider);
     70         pw.print(prefix); pw.print("name="); pw.println(info.authority);
     71         if (info.isSyncable || info.multiprocess || info.initOrder != 0) {
     72             pw.print(prefix); pw.print("isSyncable="); pw.print(info.isSyncable);
     73                     pw.print("multiprocess="); pw.print(info.multiprocess);
     74                     pw.print(" initOrder="); pw.println(info.initOrder);
     75         }
     76         if (externals != 0) {
     77             pw.print(prefix); pw.print("externals="); pw.println(externals);
     78         }
     79         if (clients.size() > 0) {
     80             pw.print(prefix); pw.println("Clients:");
     81             for (ProcessRecord cproc : clients) {
     82                 pw.print(prefix); pw.print("  - "); pw.println(cproc.toShortString());
     83             }
     84         }
     85     }
     86 
     87     public String toString() {
     88         if (stringName != null) {
     89             return stringName;
     90         }
     91         StringBuilder sb = new StringBuilder(128);
     92         sb.append("ContentProviderRecord{");
     93         sb.append(Integer.toHexString(System.identityHashCode(this)));
     94         sb.append(' ');
     95         sb.append(info.name);
     96         sb.append('}');
     97         return stringName = sb.toString();
     98     }
     99 }
    100