Expanding out ideas on Simulator 2... trying to get everything working

Sim02/simulator.c

@@ -1,6 +1,72 @@
 #include "configops.h"
 #include "metadataops.h"
 #include "StandardConstants.h"
+#include "simulator.h"
+
+/*
+Name: createProcessList
+Process: reads through the opcode struct to fill out the linked list of PCBs
+Function Input/Parameters: metadata (OpCodeType *)
+Function Output/Parameters: none
+Function Output/Returned: head pointer to the PCBs
+Device Input/Device: none
+Device Output/Device: none
+Dependencies: malloc, sizeof, ???
+*/
+ProcessControlBlockLL *createProcessList(OpCodeType *metadataPtr)
+{
+    // allocate and create the ProcessControlBlockLL using malloc and size of
+    ProcessControlBlockLL *headBlock;
+    headBlock = malloc(sizeof(ProcessControlBlockLL));
+    // set the head pointer to NULL
+    headBlock->headPtr = NULL;
+    // return headBlock
+    return headBlock;
+}
+
+/*
+Name: destroyProcessList
+Process: deallocates memory used for the linked list struct
+Function Input/Parameters: head pointer to linked list (ProcessControlBlockLL *)
+Function Output/Parameters: none
+Function Output/Returned: NULL
+Device Input/Device: none
+Device Output/Device: none
+Dependencies: free, destroyProcessListHelper, ???
+*/
+ProcessControlBlockLL *destroyProcessList(ProcessControlBlockLL *linkedListPtr)
+{
+    // call the first destroyProcessListHelper
+    destroyProcessListHelper(linkedListPtr->headPtr);
+    // free the rest of the struct
+    free(linkedListPtr);
+    // return null
+    return NULL;
+}
+
+/*
+Name: destroyProcessListHelper
+Process: recursively clears the PCB linked list struct, freeing the struct
+Function Input/Parameters: head pointer to linked list (ProcessControlBlockLL *)
+Function Output/Parameters: none
+Function Output/Returned: NULL
+Device Input/Device: none
+Device Output/Device: none
+Dependencies: free, destroyProcessListHelper(recursively), ???
+*/
+ProcessControlBlock *destroyProcessListHelper(ProcessControlBlock *nodePtr)
+{
+    // check to see if the next pointer is NOT null
+    if(nodePtr->nextPtr != NULL)
+    {
+        // if not null, move to the next pointer (recurse)
+        nodePtr->nextPtr = destroyProcessListHelper(nodePtr->nextPtr);
+    }
+    // free the 'parent' node
+    free(nodePtr);
+    // return null
+    return NULL;
+}
 
 /*
 Name: runSim