/*
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* Copyright (C) 2006 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.server.am;
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import android.content.IIntentReceiver;
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import android.content.IntentFilter;
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import android.os.Binder;
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import android.os.IBinder;
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import android.util.PrintWriterPrinter;
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import android.util.Printer;
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import android.util.proto.ProtoOutputStream;
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import com.android.server.IntentResolver;
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import java.io.PrintWriter;
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import java.util.ArrayList;
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/**
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* A receiver object that has registered for one or more broadcasts.
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* The ArrayList holds BroadcastFilter objects.
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*/
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final class ReceiverList extends ArrayList<BroadcastFilter>
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implements IBinder.DeathRecipient {
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final ActivityManagerService owner;
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public final IIntentReceiver receiver;
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public final ProcessRecord app;
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public final int pid;
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public final int uid;
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public final int userId;
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BroadcastRecord curBroadcast = null;
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boolean linkedToDeath = false;
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String stringName;
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ReceiverList(ActivityManagerService _owner, ProcessRecord _app,
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int _pid, int _uid, int _userId, IIntentReceiver _receiver) {
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owner = _owner;
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receiver = _receiver;
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app = _app;
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pid = _pid;
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uid = _uid;
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userId = _userId;
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}
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// Want object identity, not the array identity we are inheriting.
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public boolean equals(Object o) {
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return this == o;
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}
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public int hashCode() {
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return System.identityHashCode(this);
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}
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public void binderDied() {
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linkedToDeath = false;
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owner.unregisterReceiver(receiver);
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}
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public boolean containsFilter(IntentFilter filter) {
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final int N = size();
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for (int i = 0; i < N; i++) {
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final BroadcastFilter f = get(i);
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if (IntentResolver.filterEquals(f, filter)) {
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return true;
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}
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}
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return false;
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}
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void writeToProto(ProtoOutputStream proto, long fieldId) {
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long token = proto.start(fieldId);
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app.writeToProto(proto, ReceiverListProto.APP);
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proto.write(ReceiverListProto.PID, pid);
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proto.write(ReceiverListProto.UID, uid);
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proto.write(ReceiverListProto.USER, userId);
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if (curBroadcast != null) {
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curBroadcast.writeToProto(proto, ReceiverListProto.CURRENT);
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}
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proto.write(ReceiverListProto.LINKED_TO_DEATH, linkedToDeath);
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final int N = size();
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for (int i=0; i<N; i++) {
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BroadcastFilter bf = get(i);
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bf.writeToProto(proto, ReceiverListProto.FILTERS);
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}
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proto.write(ReceiverListProto.HEX_HASH, Integer.toHexString(System.identityHashCode(this)));
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proto.end(token);
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}
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void dumpLocal(PrintWriter pw, String prefix) {
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pw.print(prefix); pw.print("app="); pw.print(app != null ? app.toShortString() : null);
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pw.print(" pid="); pw.print(pid); pw.print(" uid="); pw.print(uid);
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pw.print(" user="); pw.println(userId);
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if (curBroadcast != null || linkedToDeath) {
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pw.print(prefix); pw.print("curBroadcast="); pw.print(curBroadcast);
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pw.print(" linkedToDeath="); pw.println(linkedToDeath);
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}
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}
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void dump(PrintWriter pw, String prefix) {
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Printer pr = new PrintWriterPrinter(pw);
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dumpLocal(pw, prefix);
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String p2 = prefix + " ";
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final int N = size();
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for (int i=0; i<N; i++) {
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BroadcastFilter bf = get(i);
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pw.print(prefix); pw.print("Filter #"); pw.print(i);
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pw.print(": BroadcastFilter{");
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pw.print(Integer.toHexString(System.identityHashCode(bf)));
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pw.println('}');
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bf.dumpInReceiverList(pw, pr, p2);
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}
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}
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public String toString() {
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if (stringName != null) {
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return stringName;
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}
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StringBuilder sb = new StringBuilder(128);
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sb.append("ReceiverList{");
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sb.append(Integer.toHexString(System.identityHashCode(this)));
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sb.append(' ');
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sb.append(pid);
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sb.append(' ');
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sb.append((app != null ? app.processName : "(unknown name)"));
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sb.append('/');
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sb.append(uid);
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sb.append("/u");
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sb.append(userId);
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sb.append((receiver.asBinder() instanceof Binder) ? " local:" : " remote:");
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sb.append(Integer.toHexString(System.identityHashCode(receiver.asBinder())));
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sb.append('}');
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return stringName = sb.toString();
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}
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}
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