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radio medium reporting transfers only after they have succeded

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This commit is contained in:
fros4943 2006-10-06 13:32:45 +00:00
parent e4611dc912
commit 24b2944c36
1 changed files with 84 additions and 32 deletions
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116
tools/cooja/java/se/sics/cooja/radiomediums/StandardRadioMedium.java
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@ -26,7 +26,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: StandardRadioMedium.java,v 1.5 2006/10/05 14:51:35 fros4943 Exp $
* $Id: StandardRadioMedium.java,v 1.6 2006/10/06 13:32:45 fros4943 Exp $
*/
package se.sics.cooja.radiomediums;
@ -69,8 +69,9 @@ public class StandardRadioMedium extends RadioMedium {
private Vector<Position> registeredPositions = new Vector<Position>();
private Vector<Radio> registeredRadios = new Vector<Radio>();
private Vector<Position> newSendingPositions = new Vector<Position>();
private Vector<Radio> newSendingRadios = new Vector<Radio>();
private Vector<Position> transmissionStartedPositions = new Vector<Position>();
private Vector<Radio> transmissionStartedRadios = new Vector<Radio>();
private Vector<Radio> transmissionEndedRadios = new Vector<Radio>();
private static RadioMedium myRadioMedium;
@ -316,64 +317,111 @@ public class StandardRadioMedium extends RadioMedium {
private static double INTERFERENCE_RANGE = 100;
private class RadioMediumObservable extends Observable {
private void transmissionStarted() {
private void setRadioMediumChanged() {
setChanged();
notifyObservers();
}
private void radiosChanged() {
setChanged();
notifyObservers();
}
}
private RadioMediumObservable radioMediumObservable = new RadioMediumObservable();
private RadioConnection[] lastTickConnections = null;
private Vector<RadioConnection> pendingConnections = new Vector<RadioConnection>();
private ConnectionLogger myLogger = null;
private Observer radioDataObserver = new Observer() {
public void update(Observable radio, Object obj) {
// Something, let tick loop notify observers
radioMediumObservable.setRadioMediumChanged();
if (((Radio) radio).getLastEvent() == Radio.RadioEvent.TRANSMISSION_STARTED) {
// If obj is the position, use it directly (speeds up things)
// Otherwise we must search for the position ourselves
Position sendingPosition = (Position) obj;
if (sendingPosition == null) {
Position startingPosition = (Position) obj;
if (startingPosition == null) {
if (!registeredRadios.contains(radio)) {
logger.fatal("Sending radio not registered, skipping packet");
return;
}
sendingPosition = registeredPositions.get(registeredRadios.indexOf(radio));
startingPosition = registeredPositions.get(registeredRadios.indexOf(radio));
}
if (!newSendingRadios.contains(radio)) {
newSendingPositions.add(sendingPosition);
newSendingRadios.add((Radio) radio);
if (!transmissionStartedRadios.contains(radio)) {
transmissionStartedPositions.add(startingPosition);
transmissionStartedRadios.add((Radio) radio);
}
} else {
radioMediumObservable.radiosChanged();
}
if (((Radio) radio).getLastEvent() == Radio.RadioEvent.TRANSMISSION_FINISHED) {
transmissionEndedRadios.add((Radio) radio);
}
}
};
private Observer tickObserver = new Observer() {
public void update(Observable obs, Object obj) {
RadioConnection[] oldTickConnections = lastTickConnections;
if (lastTickConnections != null)
radioMediumObservable.setRadioMediumChanged();
// Reset last tick connections
lastTickConnections = null;
if (newSendingPositions.size() > 0) {
final int numberSending = newSendingPositions.size();
lastTickConnections = new RadioConnection[numberSending];
// Log finished connections if any
Vector<RadioConnection> updatedPendingConnections = new Vector<RadioConnection>();
if (transmissionEndedRadios.size() > 0) {
final int numberFinished = transmissionEndedRadios.size();
Vector<RadioConnection> newTickConnections = new Vector<RadioConnection>();
// Loop through all radios that finished transmitting data
for (int recvNr = 0; recvNr < numberFinished; recvNr++) {
Radio transmittingRadio = transmissionEndedRadios.get(recvNr);
for (RadioConnection pendingConnection: pendingConnections) {
// Log finished connection
if (pendingConnection.getSourceRadio() == transmittingRadio) {
for (Radio destRadio: pendingConnection.getDestinationRadios()) {
if (destRadio.getLastEvent() != Radio.RadioEvent.RECEPTION_FINISHED) {
// Radio was interfered
pendingConnection.removeDestination(destRadio);
}
}
newTickConnections.add(pendingConnection);
}
// Remove connection if old (don't keep)
if (pendingConnection.getSourceRadio().isTransmitting())
updatedPendingConnections.add(pendingConnection);
}
}
lastTickConnections = new RadioConnection[newTickConnections.size()];
for (int i=0; i < lastTickConnections.length; i++)
lastTickConnections[i] = newTickConnections.get(i);
transmissionEndedRadios.clear();
pendingConnections = updatedPendingConnections;
// Radio medium has changed, notifing below
radioMediumObservable.setRadioMediumChanged();
}
// Start new transmissions
if (transmissionStartedPositions.size() > 0) {
final int numberSending = transmissionStartedPositions.size();
// Loop through all new sending radios
for (int sendNr = 0; sendNr < numberSending; sendNr++) {
Radio sendingRadio = newSendingRadios.get(sendNr);
Radio sendingRadio = transmissionStartedRadios.get(sendNr);
byte[] dataToSend = sendingRadio.getLastPacketTransmitted();
lastTickConnections[sendNr] = new RadioConnection();
lastTickConnections[sendNr].setSource(newSendingRadios.get(sendNr),
newSendingPositions.get(sendNr), dataToSend);
RadioConnection newConnection = new RadioConnection();
pendingConnections.add(newConnection);
newConnection.setSource(transmissionStartedRadios.get(sendNr),
transmissionStartedPositions.get(sendNr), dataToSend);
// Loop through all radios that are listening
for (int listenNr = 0; listenNr < registeredPositions.size(); listenNr++) {
@ -382,7 +430,7 @@ public class StandardRadioMedium extends RadioMedium {
// If not the sending radio..
if (sendingRadio != listeningRadio) {
double distance = newSendingPositions.get(sendNr).getDistanceTo(
double distance = transmissionStartedPositions.get(sendNr).getDistanceTo(
registeredPositions.get(listenNr));
// Fetch current output power indicator (scale with as percent)
@ -393,10 +441,9 @@ public class StandardRadioMedium extends RadioMedium {
double moteTransmissionRange = TRANSMITTING_RANGE
* (0.01 * (double) sendingRadio
.getCurrentOutputPowerIndicator());
if (distance <= moteTransmissionRange) {
lastTickConnections[sendNr].addDestination(registeredRadios
newConnection.addDestination(registeredRadios
.get(listenNr), registeredPositions.get(listenNr),
dataToSend);
@ -416,17 +463,22 @@ public class StandardRadioMedium extends RadioMedium {
}
}
}
newSendingPositions.clear();
newSendingRadios.clear();
transmissionStartedPositions.clear();
transmissionStartedRadios.clear();
if (myLogger != null) {
for (RadioConnection conn : lastTickConnections)
myLogger.logConnection(conn);
}
// Radio medium has changed, notifing below
radioMediumObservable.setRadioMediumChanged();
}
if (lastTickConnections != oldTickConnections)
radioMediumObservable.transmissionStarted();
// Notify observers (if anything has changed)
radioMediumObservable.notifyObservers();
}
};