/services/java/com/android/server/am/ReceiverList.java

  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
 17package com.android.server.am;
 18
 19import android.content.IIntentReceiver;
 20import android.content.Intent;
 21import android.os.Binder;
 22import android.os.Bundle;
 23import android.os.IBinder;
 24import android.os.RemoteException;
 25import android.util.PrintWriterPrinter;
 26import android.util.Printer;
 27
 28import java.io.PrintWriter;
 29import java.util.ArrayList;
 30
 31/**
 32 * A receiver object that has registered for one or more broadcasts.
 33 * The ArrayList holds BroadcastFilter objects.
 34 */
 35final class ReceiverList extends ArrayList<BroadcastFilter>
 36        implements IBinder.DeathRecipient {
 37    final ActivityManagerService owner;
 38    public final IIntentReceiver receiver;
 39    public final ProcessRecord app;
 40    public final int pid;
 41    public final int uid;
 42    public final int userId;
 43    BroadcastRecord curBroadcast = null;
 44    boolean linkedToDeath = false;
 45
 46    String stringName;
 47    
 48    ReceiverList(ActivityManagerService _owner, ProcessRecord _app,
 49            int _pid, int _uid, int _userId, IIntentReceiver _receiver) {
 50        owner = _owner;
 51        receiver = _receiver;
 52        app = _app;
 53        pid = _pid;
 54        uid = _uid;
 55        userId = _userId;
 56    }
 57
 58    // Want object identity, not the array identity we are inheriting.
 59    public boolean equals(Object o) {
 60        return this == o;
 61    }
 62    public int hashCode() {
 63        return System.identityHashCode(this);
 64    }
 65    
 66    public void binderDied() {
 67        linkedToDeath = false;
 68        owner.unregisterReceiver(receiver);
 69    }
 70    
 71    void dumpLocal(PrintWriter pw, String prefix) {
 72        pw.print(prefix); pw.print("app="); pw.print(app != null ? app.toShortString() : null);
 73            pw.print(" pid="); pw.print(pid); pw.print(" uid="); pw.print(uid);
 74            pw.print(" user="); pw.println(userId);
 75        if (curBroadcast != null || linkedToDeath) {
 76            pw.print(prefix); pw.print("curBroadcast="); pw.print(curBroadcast);
 77                pw.print(" linkedToDeath="); pw.println(linkedToDeath);
 78        }
 79    }
 80    
 81    void dump(PrintWriter pw, String prefix) {
 82        Printer pr = new PrintWriterPrinter(pw);
 83        dumpLocal(pw, prefix);
 84        String p2 = prefix + "  ";
 85        final int N = size();
 86        for (int i=0; i<N; i++) {
 87            BroadcastFilter bf = get(i);
 88            pw.print(prefix); pw.print("Filter #"); pw.print(i);
 89                    pw.print(": BroadcastFilter{");
 90                    pw.print(Integer.toHexString(System.identityHashCode(bf)));
 91                    pw.println('}');
 92            bf.dumpInReceiverList(pw, pr, p2);
 93        }
 94    }
 95    
 96    public String toString() {
 97        if (stringName != null) {
 98            return stringName;
 99        }
100        StringBuilder sb = new StringBuilder(128);
101        sb.append("ReceiverList{");
102        sb.append(Integer.toHexString(System.identityHashCode(this)));
103        sb.append(' ');
104        sb.append(pid);
105        sb.append(' ');
106        sb.append((app != null ? app.processName : "(unknown name)"));
107        sb.append('/');
108        sb.append(uid);
109        sb.append("/u");
110        sb.append(userId);
111        sb.append((receiver.asBinder() instanceof Binder) ? " local:" : " remote:");
112        sb.append(Integer.toHexString(System.identityHashCode(receiver.asBinder())));
113        sb.append('}');
114        return stringName = sb.toString();
115    }
116}