changed fifo scheduler to strictly keep the order

dram/resources/configs/memconfigs/fifo.xml

@@ -8,5 +8,4 @@
   <Capsize value="5" />
   <PowerDownMode value="Staggered" />
   <PowerDownTimeout value="100" />
-  <DatabaseRecordingEnabled value="1" />
 </memconfig>

dram/resources/simulations/sim-batch.xml

@@ -5,7 +5,7 @@
 
  <memconfigs>
   <!--   <memconfig>fr_fcfs.xml</memconfig>
-   -->  <memconfig>fr_fcfs.xml</memconfig>
+   -->  <memconfig>fifo.xml</memconfig>
   </memconfigs>
  <trace-setups>
 

dram/src/controller/scheduler/Fifo.cpp

@@ -17,35 +17,32 @@ bool Fifo::hasPayloads()
 
 void Fifo::schedule(gp* payload)
 {
-    buffer[DramExtension::getExtension(payload).getBank()].push_back(payload);
+    buffer.push_back(payload);
 }
 
 gp* Fifo::getNextPayload()
 {
-    for(Bank bank: controllerCore.getFreeBanks())
+    if(!buffer.empty())
     {
-        if(!buffer[bank].empty())
+        DramExtension& frontRequest = DramExtension::getExtension(buffer.front());
+        vector<Bank> freeBanks = controllerCore.getFreeBanks();
+        if(std::find(freeBanks.begin(),freeBanks.end(),frontRequest.getBank()) != freeBanks.end())
         {
-            return buffer[bank].front();
+            return buffer.front();
         }
     }
 
     return NULL;
 }
 
-void Fifo::removePayload(gp* payload)
+void Fifo::removePayload(gp* /*payload*/)
 {
-    buffer[DramExtension::getExtension(payload).getBank()].pop_front();
+    buffer.pop_front();
 }
 
 unsigned int Fifo::getNumberOfQueuedPayloads()
 {
-    unsigned int numberOfQueuedPayloads = 0;
-    for(auto& bufferElement : buffer)
-    {
-        numberOfQueuedPayloads += bufferElement.second.size();
-    }
-    return numberOfQueuedPayloads;
+    return buffer.size();
 }
 
 } /* namespace scheduler */

dram/src/controller/scheduler/Fifo.h

@@ -30,7 +30,7 @@ public:
     virtual void removePayload(gp* payload) override;
 
 private:
-    std::map<Bank, std::deque<gp*>> buffer;
+    std::deque<gp*> buffer;
     core::ControllerCore &controllerCore;
     unsigned int getNumberOfQueuedPayloads();
 };