You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
162 lines
5.2 KiB
162 lines
5.2 KiB
/*
|
|
* Copyright (C) 2006 The Android Open Source Project
|
|
* Copyright (c) 2017 m2049r
|
|
*
|
|
* 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.m2049r.xmrwallet.service;
|
|
|
|
import android.os.Handler;
|
|
import android.os.Looper;
|
|
import android.os.Message;
|
|
import android.os.Process;
|
|
|
|
|
|
/**
|
|
* Handy class for starting a new thread that has a looper. The looper can then be
|
|
* used to create handler classes. Note that start() must still be called.
|
|
* The started Thread has a stck size of STACK_SIZE (=5MB)
|
|
*/
|
|
public class MoneroHandlerThread extends Thread {
|
|
// from src/cryptonote_config.h
|
|
static public final long THREAD_STACK_SIZE = 5 * 1024 * 1024;
|
|
private int mPriority;
|
|
private int mTid = -1;
|
|
private Looper mLooper;
|
|
|
|
public MoneroHandlerThread(String name) {
|
|
super(null, null, name, THREAD_STACK_SIZE);
|
|
mPriority = Process.THREAD_PRIORITY_DEFAULT;
|
|
}
|
|
|
|
/**
|
|
* Constructs a MoneroHandlerThread.
|
|
*
|
|
* @param name
|
|
* @param priority The priority to run the thread at. The value supplied must be from
|
|
* {@link android.os.Process} and not from java.lang.Thread.
|
|
*/
|
|
MoneroHandlerThread(String name, int priority) {
|
|
super(null, null, name, THREAD_STACK_SIZE);
|
|
mPriority = priority;
|
|
}
|
|
|
|
/**
|
|
* Call back method that can be explicitly overridden if needed to execute some
|
|
* setup before Looper loops.
|
|
*/
|
|
|
|
private void onLooperPrepared() {
|
|
}
|
|
|
|
@Override
|
|
public void run() {
|
|
mTid = Process.myTid();
|
|
Looper.prepare();
|
|
synchronized (this) {
|
|
mLooper = Looper.myLooper();
|
|
notifyAll();
|
|
}
|
|
Process.setThreadPriority(mPriority);
|
|
onLooperPrepared();
|
|
Looper.loop();
|
|
mTid = -1;
|
|
}
|
|
|
|
/**
|
|
* This method returns the Looper associated with this thread. If this thread not been started
|
|
* or for any reason is isAlive() returns false, this method will return null. If this thread
|
|
* has been started, this method will block until the looper has been initialized.
|
|
*
|
|
* @return The looper.
|
|
*/
|
|
Looper getLooper() {
|
|
if (!isAlive()) {
|
|
return null;
|
|
}
|
|
|
|
// If the thread has been started, wait until the looper has been created.
|
|
synchronized (this) {
|
|
while (isAlive() && mLooper == null) {
|
|
try {
|
|
wait();
|
|
} catch (InterruptedException e) {
|
|
}
|
|
}
|
|
}
|
|
return mLooper;
|
|
}
|
|
|
|
/**
|
|
* Quits the handler thread's looper.
|
|
* <p>
|
|
* Causes the handler thread's looper to terminate without processing any
|
|
* more messages in the message queue.
|
|
* </p><p>
|
|
* Any attempt to post messages to the queue after the looper is asked to quit will fail.
|
|
* For example, the {@link Handler#sendMessage(Message)} method will return false.
|
|
* </p><p class="note">
|
|
* Using this method may be unsafe because some messages may not be delivered
|
|
* before the looper terminates. Consider using {@link #quitSafely} instead to ensure
|
|
* that all pending work is completed in an orderly manner.
|
|
* </p>
|
|
*
|
|
* @return True if the looper looper has been asked to quit or false if the
|
|
* thread had not yet started running.
|
|
* @see #quitSafely
|
|
*/
|
|
public boolean quit() {
|
|
Looper looper = getLooper();
|
|
if (looper != null) {
|
|
looper.quit();
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Quits the handler thread's looper safely.
|
|
* <p>
|
|
* Causes the handler thread's looper to terminate as soon as all remaining messages
|
|
* in the message queue that are already due to be delivered have been handled.
|
|
* Pending delayed messages with due times in the future will not be delivered.
|
|
* </p><p>
|
|
* Any attempt to post messages to the queue after the looper is asked to quit will fail.
|
|
* For example, the {@link Handler#sendMessage(Message)} method will return false.
|
|
* </p><p>
|
|
* If the thread has not been started or has finished (that is if
|
|
* {@link #getLooper} returns null), then false is returned.
|
|
* Otherwise the looper is asked to quit and true is returned.
|
|
* </p>
|
|
*
|
|
* @return True if the looper looper has been asked to quit or false if the
|
|
* thread had not yet started running.
|
|
*/
|
|
public boolean quitSafely() {
|
|
Looper looper = getLooper();
|
|
if (looper != null) {
|
|
looper.quitSafely();
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Returns the identifier of this thread. See Process.myTid().
|
|
*/
|
|
public int getThreadId() {
|
|
return mTid;
|
|
}
|
|
}
|