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/*
* Copyright (C) 2006 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.content.IIntentReceiver;
import android.content.IntentFilter;
import android.os.Binder;
import android.os.IBinder;
import android.util.PrintWriterPrinter;
import android.util.Printer;
import android.util.proto.ProtoOutputStream;
import com.android.server.IntentResolver;
import java.io.PrintWriter;
import java.util.ArrayList;
/**
* A receiver object that has registered for one or more broadcasts.
* The ArrayList holds BroadcastFilter objects.
*/
final class ReceiverList extends ArrayList<BroadcastFilter>
implements IBinder.DeathRecipient {
final ActivityManagerService owner;
public final IIntentReceiver receiver;
public final ProcessRecord app;
public final int pid;
public final int uid;
public final int userId;
BroadcastRecord curBroadcast = null;
boolean linkedToDeath = false;
String stringName;
ReceiverList(ActivityManagerService _owner, ProcessRecord _app,
int _pid, int _uid, int _userId, IIntentReceiver _receiver) {
owner = _owner;
receiver = _receiver;
app = _app;
pid = _pid;
uid = _uid;
userId = _userId;
}
// Want object identity, not the array identity we are inheriting.
public boolean equals(Object o) {
return this == o;
}
public int hashCode() {
return System.identityHashCode(this);
}
public void binderDied() {
linkedToDeath = false;
owner.unregisterReceiver(receiver);
}
public boolean containsFilter(IntentFilter filter) {
final int N = size();
for (int i = 0; i < N; i++) {
final BroadcastFilter f = get(i);
if (IntentResolver.filterEquals(f, filter)) {
return true;
}
}
return false;
}
void writeToProto(ProtoOutputStream proto, long fieldId) {
long token = proto.start(fieldId);
app.writeToProto(proto, ReceiverListProto.APP);
proto.write(ReceiverListProto.PID, pid);
proto.write(ReceiverListProto.UID, uid);
proto.write(ReceiverListProto.USER, userId);
if (curBroadcast != null) {
curBroadcast.writeToProto(proto, ReceiverListProto.CURRENT);
}
proto.write(ReceiverListProto.LINKED_TO_DEATH, linkedToDeath);
final int N = size();
for (int i=0; i<N; i++) {
BroadcastFilter bf = get(i);
bf.writeToProto(proto, ReceiverListProto.FILTERS);
}
proto.write(ReceiverListProto.HEX_HASH, Integer.toHexString(System.identityHashCode(this)));
proto.end(token);
}
void dumpLocal(PrintWriter pw, String prefix) {
pw.print(prefix); pw.print("app="); pw.print(app != null ? app.toShortString() : null);
pw.print(" pid="); pw.print(pid); pw.print(" uid="); pw.print(uid);
pw.print(" user="); pw.println(userId);
if (curBroadcast != null || linkedToDeath) {
pw.print(prefix); pw.print("curBroadcast="); pw.print(curBroadcast);
pw.print(" linkedToDeath="); pw.println(linkedToDeath);
}
}
void dump(PrintWriter pw, String prefix) {
Printer pr = new PrintWriterPrinter(pw);
dumpLocal(pw, prefix);
String p2 = prefix + " ";
final int N = size();
for (int i=0; i<N; i++) {
BroadcastFilter bf = get(i);
pw.print(prefix); pw.print("Filter #"); pw.print(i);
pw.print(": BroadcastFilter{");
pw.print(Integer.toHexString(System.identityHashCode(bf)));
pw.println('}');
bf.dumpInReceiverList(pw, pr, p2);
}
}
public String toString() {
if (stringName != null) {
return stringName;
}
StringBuilder sb = new StringBuilder(128);
sb.append("ReceiverList{");
sb.append(Integer.toHexString(System.identityHashCode(this)));
sb.append(' ');
sb.append(pid);
sb.append(' ');
sb.append((app != null ? app.processName : "(unknown name)"));
sb.append('/');
sb.append(uid);
sb.append("/u");
sb.append(userId);
sb.append((receiver.asBinder() instanceof Binder) ? " local:" : " remote:");
sb.append(Integer.toHexString(System.identityHashCode(receiver.asBinder())));
sb.append('}');
return stringName = sb.toString();
}
}
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