From 27e75d248baf04bf6c1c012efd446ea5cae1d5dd Mon Sep 17 00:00:00 2001
From: anna_schlittenhardt <anna.schlittenhardt@stud.uni-due.de>
Date: Sun, 24 Jan 2021 18:08:02 +0100
Subject: [PATCH] Added new function add_free()

---
 mm.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/mm.c b/mm.c
index 86f9c80..e3b4924 100644
--- a/mm.c
+++ b/mm.c
@@ -130,6 +130,12 @@ static void* extend_heap(size_t words);
 ////////////////////////////////////////////////////////////////////////////////
 /////////////////////////////// HELPER FUNCTIONS /////////////////////////////// 
 ////////////////////////////////////////////////////////////////////////////////
+static void add_free(void* ptr, size_t size)
+{
+  int szClass = getSzClass(size);
+  void* classPtr = seg_list[szClass];
+}
+
 static void place(void *bp, size_t asize)
 {
   size_t csize = GET_SIZE(HDRP(bp));
@@ -152,7 +158,7 @@ static int getSzClass(size_t asize) {
       return i;
     }
   }
-  return LISTSIZE;
+  return LISTSIZE-1;
 }
 
 static void* best_fit(void* ptr, size_t asize) {
@@ -313,6 +319,7 @@ void *mm_malloc(size_t size)
 void mm_free(void *ptr)
 {
   size_t size = GET_SIZE(HDRP(ptr));
+  add_free(ptr, size);
   PUT(HDRP(ptr), PACK(size, 0));
   PUT(FTRP(ptr), PACK(size, 0));