Implement ReadyBatch class

# Explain what has been changed

# Explain why this change is being made

# Provide links to any relevant tickets, articles or other resources

DRAMSys/simulator/src/controller/scheduler/ReadyBatch.cpp

@@ -1 +1,43 @@
 #include "ReadyBatch.h"
+
+ReadyBatch::ReadyBatch()
+{
+  fifosize = Configuration::getInstance().ReadyBatchSize;
+  thresholdAge(Configuration::getInstance().ReadyBatchThresholdAge, SC_NS);
+}
+
+unsigned int ReadyBatch::getNumRequests()
+{
+  return readybatch.size();
+}
+
+Row ReadyBatch::getRow()
+{
+  return DramExtension::getExtension(readybatch.front()).getRow();
+}
+
+sc_time ReadyBatch::getTimeOfOldestRequest()
+{
+  sc_time oldestTime = sc_time_stamp();
+  for (auto reqPayload = readybatch.begin(); reqPayload != readybatch.end(); reqPayload++)
+  {
+    sc_time requestTimeOfGeneration = GenerationExtension::getExtension(*reqPayload).TimeOfGeneration();
+    if (requestTimeOfGeneration < oldestTime)
+    {
+      oldestTime = requestTimeOfGeneration;
+    }
+  }
+  return oldestTime;
+}
+
+bool ReadyBatch::addTransaction(gp* payload)
+{
+  sc_time currentAge = sc_time_stamp() - getTimeOfOldestRequest();
+  Row newRow = DramExtension::getExtension(payload).getRow();
+  if (getNumRequests == fifosize || currentAge >= thresholdAge || newRow != getRow()) {
+    return false;
+  } else {
+    readybatch.emplace_back(payload);
+    return true;
+  }
+}

DRAMSys/simulator/src/controller/scheduler/ReadyBatch.h

@@ -3,6 +3,7 @@
 
 #include "tlm.h"
 #include "../../common/dramExtension.h"
+#include "../core/configuration/Configuration.h"
 
 typedef tlm::tlm_generic_payload gp;
 
@@ -11,11 +12,12 @@ using namespace std;
 class ReadyBatch
 {
 public:
-    ReadyBatch(unsigned int fifosize) : fifosize(fifosize){}
+    ReadyBatch();
     bool addTransaction(gp* payload);
 private:
     std::deque<gp*> readybatch;
     unsigned int fifosize;
+    sc_time thresholdAge;
 
     Row getRow();
     sc_time getTimeOfOldestRequest();