async
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7a5b2d72ca
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@ -9,11 +9,20 @@ import org.json.JSONObject;
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public class AsyncHandler implements Runnable {
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private List<Task> tasks = new LinkedList<>();
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private Thread asynchandlerthread = null;
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private Thread[] asynchandlerthread;
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private int threadsRunning = 0;
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private TelegramAPI api;
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private static final String THREADPREFIX = "AsyncTgHandler-";
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//just use 1 async thread
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public AsyncHandler(TelegramAPI api) {
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this(api, 1);
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}
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//allow as many as threadCount threads to handle Async Tasks
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public AsyncHandler(TelegramAPI api, int threadCount) {
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this.api = api;
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asynchandlerthread = new Thread[threadCount];
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}
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public void enque(Task t) {
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@ -31,19 +40,34 @@ public class AsyncHandler implements Runnable {
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}
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}
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//make sure its running
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if(asynchandlerthread == null) {
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asynchandlerthread = new Thread(this, "AsyncHandler");
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asynchandlerthread.start();
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} else if(!asynchandlerthread.isAlive()) {
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asynchandlerthread = null;
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}
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//muss nicht im syncronized liegen, weil es nur ein read ist
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ensureThreads(tasks.size());
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}
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public void enque(String request, String parameters) {
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enque(new Task(request, parameters));
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}
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//makes sure, that at least count Threads are running
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private void ensureThreads(int count) {
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if(count < 1) count = 1;
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synchronized (asynchandlerthread) {
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if(threadsRunning >= count) return; //mus im syncronized liegen, damit es nicht zu problemen kommt, wenn diese funktion parallel aufgerufen wird
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//alle threads durchgehen und leere (null) mit neuen Threads füllen
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for(int i = 0; i < asynchandlerthread.length && count > 0; i++) {
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if(asynchandlerthread[i] == null) {
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//spawn a thread
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asynchandlerthread[i] = new Thread(this, THREADPREFIX + i);
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asynchandlerthread[i].start();
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threadsRunning++;
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}
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count --;
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}
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}
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}
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@Override
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public void run() {
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int failed = 0;
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@ -68,7 +92,7 @@ public class AsyncHandler implements Runnable {
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// throw new Exception("Callbacktype missmatch! Got " + obj.getClass().getSimpleName() + " Wanted: " + wanted.getSimpleName() );
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}
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failed = 0;
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} catch(UnknownHostException ex) {//host(api.telegram.org) is good -> bad inet
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} catch(UnknownHostException ex) { //host(api.telegram.org) is good -> bad inet
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failed ++;
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if(failed > 10)
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try {
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@ -87,7 +111,13 @@ public class AsyncHandler implements Runnable {
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t.printStackTrace();
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}
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}
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asynchandlerthread = null;
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int threadid = Integer.parseInt(Thread.currentThread().getName().substring(THREADPREFIX.length()));
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synchronized (asynchandlerthread) {
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threadsRunning --;
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asynchandlerthread[threadid] = null; //delete thread
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}
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}
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public static class Task {
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