private void nextChannel(int currentChannel, Time currentTime) throws IllegalActionException {
System.out.println("NEXT CHANNEL at" + currentTime);
removeFromQueue(currentChannel);
channelQueue.add(currentChannel);
nextChannel = channelQueue.peek();
changeChan = true;
getDirector().fireAt(this, currentTime.add(0.0000001));
}
/**
* State machine responsable by receiving the traffic from the data_in port, disassembly the
* pcredit_outage and send its flits to the output ports (file). If the data_in does not have a
* token, suspend firing and return.
*
* @exception IllegalActionException If there is no director.
*/
public void fire() throws IllegalActionException {
super.fire();
if (_debugging) _debug("fire current_time: " + getDirector().getModelTime());
// getting current Time
current_time = getDirector().getModelTime();
compare_time = current_time.getDoubleValue();
// if(firstSend.compareTo(compare_time) == 0.0){
if (compare_time == init_tim) {
send_msg.send(0, new IntToken("1"));
if (_debugging) _debug("FIRST sent at: " + compare_time);
if (compare_time <= stop_time) {
new_send = ((DoubleToken) interval.getToken()).doubleValue();
nextSend = current_time.add(new_send);
getDirector().fireAt(this, nextSend);
if (_debugging) _debug("after first send at: " + nextSend);
// Requests to the director to be fire() at the window sample
}
} else if (compare_time < init_tim) {
firstSend = current_time.add(init_tim);
getDirector().fireAt(this, firstSend);
if (_debugging) _debug("init_tim at: " + init_tim + " first send at " + firstSend);
} else if (current_time.getDoubleValue() == nextSend.getDoubleValue()) {
nextSend = nextSend.add(new_send);
send_msg.send(0, new IntToken("2"));
if (_debugging) _debug("msg sent at: " + compare_time);
if (_debugging) _debug("NEXT SEND AT: " + nextSend);
getDirector().fireAt(this, nextSend);
} else if (current_time.getDoubleValue() != nextSend.getDoubleValue()) {
if (_debugging) _debug("NAO ROLOU " + compare_time);
}
} // end public
public void initialize() throws IllegalActionException {
super.initialize();
init_tim = ((DoubleToken) initial_time.getToken()).doubleValue();
current_time = getDirector().getModelTime();
firstSend = current_time.add(init_tim);
getDirector().fireAt(this, firstSend);
// Get the simulation Stop time
DEstop_time = getDirector().getModelStopTime();
stop_time = DEstop_time.getDoubleValue();
if (_debugging) _debug("GET STOP TIME: ");
}
/**
* Generate an exponential random number and schedule the next firing.
*
* @exception IllegalActionException If the director throws it when scheduling the next firing, or
* if the director does not agree to fire the actor at the specified time.
*/
@Override
public boolean postfire() throws IllegalActionException {
boolean result = super.postfire();
Time currentTime = getDirector().getModelTime();
if (_outputProduced) {
$ASSIGN$_outputProduced(false);
$ASSIGN$SPECIAL$_nextOutputIndex(11, _nextOutputIndex);
if (_nextOutputIndex >= _length) {
$ASSIGN$_nextOutputIndex(0);
}
$ASSIGN$_nextFiringTime(currentTime.add(_current));
_fireAt(_nextFiringTime);
} else if (currentTime.compareTo(_nextFiringTime) >= 0) {
_fireAt(currentTime);
}
if (currentTime.compareTo(_stopTime) >= 0) {
return false;
}
return result;
}
// NOTE: No clone() method, so don't clone this.
public void fire() throws IllegalActionException {
super.fire();
double increment = 0.0;
if ((input.getWidth() > 0) && input.hasToken(0)) {
DoubleToken in = (DoubleToken) input.get(0);
increment = in.doubleValue();
}
output.broadcast(new DoubleToken(value + increment));
value += 1.0;
Director director = getDirector();
Time time = director.getModelTime();
count++;
if (count >= 5) {
director.fireAt(this, time.add(1.0));
count = 0;
} else {
director.fireAt(this, time);
}
}
public void fire() throws IllegalActionException {
Time currentTime =
getDirector().getModelTime(); // Get the model time to be used for various calculations
if (changeChan) { // Check if we need to change the channel in this fire period
setChannel(nextChannel); // Change to the next required channel
changeChan = false; // Return to normal operation upon the next fire
if (input.hasToken(
0)) { // If this fire was initiated by a token on the input, consume it to avoid loops
input.get(0);
}
} else if (input.hasToken(0)) { // Wireless token has been received f
SinkData channel =
channelStore.get(currentChannel); // Retrieve the information for the current channel
switch (channel.state) { // Determine what stage of the system we are at
case FIRSTRX: // Stage one, we will be receiving the first synchronisation packet
handleFirstRX(channel, currentTime);
break;
case SECONDRX: // Stage two, we will be receiving the second synchronisation packet
handleSecondRX(channel, currentTime);
break;
case NCALC: // Stage 4, we will be receiving the first synchronisation packet of the
// sequence to ascertain the n value
handleNCalc(channel, currentTime);
break;
default: // We are in a state that does not require an input token, so we discard it
input.get(0);
break;
}
} else { // No token has been received so it is a fire initiated by the source and not a token
// on the input
SinkData channel = null; // Initialise a channel to be used later
int desiredChannelNum =
currentChannel; // Initialise a variable to store the channel required for this firing
for (int channelNum :
channelStore
.keySet()) { // We need to find the channel that has caused the actor to be fired in
// this time period
channel =
channelStore.get(channelNum); // Retrieve the information for the channel being checked
if (channel.nextFireTime != null
&& channel.state
!= states.FINISHED) { // If we have a valid firing time, that has been initialised
if (!channel.nextFireTime.equals(
currentTime)) { // We are on an incorrect channel, continue searching
continue;
} else { // We have found the correct channel
desiredChannelNum = channelNum; // Set the desired channel to the channel we have found
break;
}
}
}
if (currentChannel == desiredChannelNum) { // If we are on the channel that we desire
System.out.println(
channel.nextFireTime.getDoubleValue() <= currentTime.getDoubleValue() + 0.4);
if (channel.nextFireTime.getDoubleValue()
<= currentTime.getDoubleValue() + 0.4) { // If we are not too early for the firing time
switch (channel.state) { // Determine what stage of the system we are at
case FIRSTTX: // Stage 3, we are in the receive period for the channels sink so we can
// transmit a packet
handleFirstTX(channel, currentTime);
changeChan = true; // Change back to the channel back to what we had previously
getDirector().fireAt(this, currentTime.add(0.000001));
break;
case SECONDTX: // Stage 5, we are in the receive period for the second time, so we can
// transmit a packet
handleSecondTX(channel, currentTime);
changeChan = true; // Change back to the channel back to what we had previously
getDirector().fireAt(this, currentTime.add(0.000001));
break;
}
}
} else if (desiredChannelNum
!= 0) { // We are not on the desired channel, so we have to change to it
// System.out.println(currentChannel + " : " + desiredChannelNum);
nextChannel =
currentChannel; // Set the channel we will change back to after the transmit to our
// current channel
setChannel(desiredChannelNum); // Set the channel to the desired channel
channel.nextFireTime =
currentTime.add(
0.0000001); // Set the channels fire time to when we are firing it so we can detect
// which channel fired
getDirector()
.fireAt(
this,
currentTime.add(0.0000001)); // Fire the actor again so we can process the transmit
}
}
}
/**
* If a new message is available at the inputs, record it in the list indexed with the time that
* the message shall be completed, and loop through the list to check whether there is collision.
* If the current time matches one of the times that we have previously recorded as the completion
* time for a transmission, then output the received message to the <i>received</i> output port if
* it is not lost to a collision; otherwise, output it to the <i>collided</i> output port.
*
* @exception IllegalActionException If an error occurs reading or writing inputs or outputs.
*/
public void fire() throws IllegalActionException {
super.fire();
Time currentTime = getDirector().getModelTime();
if (_debugging) {
_debug("---------------------------------");
_debug("Current time is: " + currentTime);
}
if (message.hasToken(0) && power.hasToken(0) && duration.hasToken(0)) {
double powerValue = ((DoubleToken) power.get(0)).doubleValue();
if (_debugging) {
_debug("Received message with power: " + powerValue);
}
if (powerValue < _powerThreshold) {
// The signal it too weak to be detected, simply drop it.
message.get(0);
duration.get(0);
if (_debugging) {
_debug("Message power is below threshold. Ignoring.");
}
} else {
// Record the reception.
Reception reception = new Reception();
reception.data = message.get(0);
reception.power = powerValue;
reception.arrivalTime = currentTime.getDoubleValue();
reception.collided = false;
reception.duration = ((DoubleToken) duration.get(0)).doubleValue();
if (_debugging) {
_debug("Message is above threshold and has duration: " + reception.duration);
}
// Update the total power density.
_totalPower = _totalPower + reception.power;
// Put the new reception into the list of prior receptions.
Time time = currentTime.add(reception.duration);
reception.expiration = time.getDoubleValue();
_receptions.add(reception);
// Schedule this actor to be fired at the end of
// the duration of the message.
_fireAt(time);
}
}
// Loop through the prior receptions (and the new one)
// to mark whether a message is collided according to the new total
// power density. Also, any prior receptions that are now
// expiring are sent to one of the two outputs.
Iterator priorReceptions = _receptions.listIterator();
while (priorReceptions.hasNext()) {
Reception priorReception = (Reception) priorReceptions.next();
if (_debugging) {
_debug("Checking reception with arrival time: " + priorReception.arrivalTime);
}
// If the reception is now expiring, send it to one of the two
// output ports.
if (priorReception.expiration == currentTime.getDoubleValue()) {
if (_debugging) {
_debug(
"Current time matches expiration "
+ "time of a prior message that arrived at: "
+ priorReception.arrivalTime);
}
// The time matches a pending reception.
priorReceptions.remove();
// Update the total power.
_totalPower = _totalPower - priorReception.power;
// Quantization errors may take this negative. Do not allow.
if (_totalPower < 0.0) {
_totalPower = 0.0;
}
if (!priorReception.collided) {
received.send(0, priorReception.data);
if (_debugging) {
_debug("Message has been received: " + priorReception.data);
}
} else {
collided.send(0, priorReception.data);
if (_debugging) {
_debug("Message has been lost: " + priorReception.data);
}
}
continue;
}
// Check the snr to see whether to mark this prior reception
// collided.
double powerWithoutThisOne = _totalPower - priorReception.power;
// Quantization errors may make this negative.
if (powerWithoutThisOne < 0.0) {
powerWithoutThisOne = 0.0;
}
double snr = priorReception.power / powerWithoutThisOne;
if (!priorReception.collided && (snr <= _SNRThresholdInDB)) {
priorReception.collided = true;
if (_debugging) {
_debug(
"Message now has a collision. SNR is: " + snr + ". Total power is: " + _totalPower);
}
}
}
}
