mirror of https://github.com/YTVanced/VancedMicroG
141 lines
4.3 KiB
Java
141 lines
4.3 KiB
Java
/*
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* Copyright (C) 2013-2017 microG Project Team
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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 org.microg.gms.gcm;
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import static org.microg.gms.gcm.McsConstants.MCS_VERSION_CODE;
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import static org.microg.gms.gcm.McsConstants.MSG_OUTPUT;
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import static org.microg.gms.gcm.McsConstants.MSG_OUTPUT_DONE;
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import static org.microg.gms.gcm.McsConstants.MSG_OUTPUT_ERROR;
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import static org.microg.gms.gcm.McsConstants.MSG_OUTPUT_READY;
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import static org.microg.gms.gcm.McsConstants.MSG_TEARDOWN;
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import android.os.Handler;
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import android.os.Looper;
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import android.util.Log;
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import com.squareup.wire.Message;
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import java.io.Closeable;
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import java.io.IOException;
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import java.io.OutputStream;
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public class McsOutputStream extends Thread implements Handler.Callback, Closeable {
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private static final String TAG = "GmsGcmMcsOutput";
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private final OutputStream os;
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private boolean initialized;
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private int version = MCS_VERSION_CODE;
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private int streamId = 0;
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private final Handler mainHandler;
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private Handler myHandler;
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private volatile boolean closed = false;
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public McsOutputStream(OutputStream os, Handler mainHandler) {
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this(os, mainHandler, false);
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}
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public McsOutputStream(OutputStream os, Handler mainHandler, boolean initialized) {
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this.os = os;
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this.mainHandler = mainHandler;
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this.initialized = initialized;
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setName("McsOutputStream");
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}
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public int getStreamId() {
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return streamId;
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}
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@Override
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public void run() {
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Looper.prepare();
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myHandler = new Handler(this);
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mainHandler.dispatchMessage(mainHandler.obtainMessage(MSG_OUTPUT_READY));
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Looper.loop();
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}
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@Override
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public boolean handleMessage(android.os.Message msg) {
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switch (msg.what) {
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case MSG_OUTPUT:
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try {
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Log.d(TAG, "Outgoing message: " + msg.obj);
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writeInternal((Message) msg.obj, msg.arg1);
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mainHandler.dispatchMessage(mainHandler.obtainMessage(MSG_OUTPUT_DONE, msg.arg1, msg.arg2, msg.obj));
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} catch (IOException e) {
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if (closed) {
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Log.d(TAG, "We were closed already. Ignoring IOException");
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} else {
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mainHandler.dispatchMessage(mainHandler.obtainMessage(MSG_OUTPUT_ERROR, e));
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}
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}
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return true;
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case MSG_TEARDOWN:
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try {
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os.close();
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} catch (IOException ignored) {
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}
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try {
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Looper.myLooper().quit();
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} catch (Exception ignored) {
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}
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return true;
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}
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return false;
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}
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@Override
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public void close() {
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if (!closed) {
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closed = true;
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myHandler.getLooper().quit();
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interrupt();
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}
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}
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private synchronized void writeInternal(Message message, int tag) throws IOException {
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if (!initialized) {
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Log.d(TAG, "Write MCS version code: " + version);
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os.write(version);
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initialized = true;
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}
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os.write(tag);
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byte[] bytes = message.encode();
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writeVarint(os, bytes.length);
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os.write(bytes);
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os.flush();
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streamId++;
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}
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private void writeVarint(OutputStream os, int value) throws IOException {
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while (true) {
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if ((value & ~0x7FL) == 0) {
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os.write(value);
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return;
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} else {
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os.write((value & 0x7F) | 0x80);
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value >>>= 7;
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}
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}
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}
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public Handler getHandler() {
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return myHandler;
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}
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}
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