+
+ while (!fifo.isEmpty()) {
+ AbstractBlock* block = fifo.takeFirst();
+
+ if (block->getPatternComputed()) continue; // block has already been processed
+
+ cout << "computing compat and output for " << qPrintable(block->getName()) << endl;
+
+
+ try {
+ block->checkInputPatternCompatibility();
+ }
+ catch(Exception e) {
+ cout << qPrintable(block->getName()) << " is not compatible with its input pattern" << endl;
+ throw(e);
+ }
+
+ try {
+ block->computeOutputPattern();
+ }
+ catch(Exception e) {
+ cout << "cannot finalize output pattern computation of " << qPrintable(block->getName()) << endl;
+ throw(e);
+ }
+ canCompute = true;
+ block->setPatternComputed(true);
+ /* add other blocks connected from block to the fifo but only if
+ all their connected inputs are connected to blocks that have
+ a traversalLevel >=0
+ */
+ foreach(AbstractInterface* iface, block->getControlOutputs()) {
+ ConnectedInterface* conn = (ConnectedInterface*)iface;
+ foreach(ConnectedInterface* connTo, conn->getConnectedTo()) {
+
+ AbstractBlock* block1 = connTo->getOwner();
+ cout << "testing if " << qPrintable(block1->getName()) << " has all connected inputs connected to already processed blocks" << endl;
+ bool addIt = true;
+ int maxLevel = 0;
+
+ foreach(AbstractInterface* iface, block1->getControlInputs()) {
+ //cout << qPrintable(iface->getName()) << " of " << qPrintable(iface->getOwner()->getName()) << " connected to " << endl;
+ ConnectedInterface* connFrom = ((ConnectedInterface*)iface)->getConnectedFrom();
+ //cout << qPrintable(connFrom->getName()) << " of " << qPrintable(connFrom->getOwner()->getName()) << endl;
+
+ if ((connFrom != NULL) && (connFrom->getOwner()->getPatternComputed() == false)) {
+ addIt = false;
+ break;
+ }
+ else {
+ if (connFrom->getOwner()->getTraversalLevel() > maxLevel) maxLevel = connFrom->getOwner()->getTraversalLevel();
+ }
+ }
+
+ if (addIt) {
+ cout << "adding " << qPrintable(block1->getName()) << " to the FIFO" << endl;
+ block1->setTraversalLevel(maxLevel+1); // level 0 = first blocks to be evaluated
+ fifo.append(block1);
+ }
+ }
+ }
+ }
+
+ if (canCompute) {
+ foreach(AbstractInterface* iface, getControlOutputs()) {
+ ConnectedInterface* connIface = AI_TO_CON(iface);
+ QList<char>* pattern = new QList<char>(*(connIface->getConnectedFrom()->getOutputPattern()));
+ connIface->setOutputPattern(pattern);
+ }
+ setPatternComputed(true);
+ }
+