Separated Architecture independent thread controll into the root of the tree

[tpg/acess2.git] / Kernel / heap.c

diff --git a/Kernel/heap.c b/Kernel/heap.c
index 90b7256..6823918 100644 (file)
--- a/Kernel/heap.c
+++ b/Kernel/heap.c
@@ -359,6 +359,23 @@ void *realloc(void *__ptr, size_t __size)
        return NULL;
 }
 
+/**
+ * \fn int IsHeap(void *Ptr)
+ * \brief Checks if an address is a heap address
+ */
+int IsHeap(void *Ptr)
+{
+       tHeapHead       *head;
+       if((Uint)Ptr < (Uint)gHeapStart)        return 0;
+       if((Uint)Ptr > (Uint)gHeapEnd)  return 0;
+       
+       head = (void*)( (Uint)Ptr - sizeof(tHeapHead) );
+       if(head->Magic != MAGIC_USED && head->Magic != MAGIC_FREE)
+               return 0;
+       
+       return 1;
+}
+
 #if WARNINGS
 void Heap_Dump()
 {