private synchronized void closeConnection() {
stopBuffersThreads();
if (connectedThread != null) {
connectedThread.cancel();
connectedThread.interrupt();
connectedThread = null;
}
boolean isConnected;
synchronized (isConnectedLock) {
isConnected = this.isConnected;
this.isConnected = false;
}
if (callbacksTimeout != null) callbacksTimeout.stopTimer();
if (exitingCallbacksThread != null && exitingCallbacksThread.isAlive())
exitingCallbacksThread.interrupt();
if (enteringCallbacksThread != null && enteringCallbacksThread.isAlive())
enteringCallbacksThread.interrupt();
queuedFrames.clear();
synchronized (arduinoCallbacksLock) {
isInACallback = false;
}
if (isConnected) {
Log.d("Device " + this.name + ": Device disconnected.");
onDisconnect();
}
}
private void callbackExited() {
synchronized (arduinoCallbacksLock) {
isInACallback = false;
lastTimeCallbacksExited = SystemClock.elapsedRealtime();
}
if (callbacksTimeout != null && !callbacksTimeout.isAlive()) callbacksTimeout.stopTimer();
if (exitingCallbacksThread != null && exitingCallbacksThread.isAlive()) return;
exitingCallbacksThread =
new Thread(
new Runnable() {
@Override
public void run() {
boolean sent;
while (!queuedFrames.isEmpty()) {
sent = false;
synchronized (arduinoCallbacksLock) {
if (!isInACallback
&& lastTimeCallbacksExited != 0
&& (SystemClock.elapsedRealtime() - lastTimeCallbacksExited > 200)) {
sendFrame(queuedFrames.poll());
sent = true;
}
}
if (sent)
try {
Thread.sleep(200);
} catch (InterruptedException ignored) {
}
}
}
});
exitingCallbacksThread.start();
}
private byte readByteFromSerialBuffer() throws InterruptedException, ShieldFrameNotComplete {
if (ShieldFrameTimeout != null && ShieldFrameTimeout.isTimeout())
throw new ShieldFrameNotComplete();
isSerialBufferWaiting = true;
byte temp = serialBuffer.take();
if (ShieldFrameTimeout != null) ShieldFrameTimeout.resetTimer();
return temp;
}