added stats functions to memory manager, don't use internal members

added simple chunk-based allocation/deallocation strategy (leads to framgentation)

1 files changed, 12 insertions, 2 deletions

diff --git a/src/kernel/memorymanagement.h b/src/kernel/memorymanagement.h
index 299fa4c..6dee417 100644
--- a/src/kernel/memorymanagement.h
+++ b/src/kernel/memorymanagement.h
@@ -2,17 +2,27 @@
 #define MEMORYMANAGEMENT_H
 
 #include <stddef.h>
+#include <stdbool.h>
+
 #include "stdint.h"
 
+typedef struct memory_chunk_t {
+	struct memory_chunk_t *next;
+	struct memory_chunk_t *prev;
+	bool allocated;
+	size_t size;
+} memory_chunk_t;
+
 typedef struct {
 	size_t offset;
 	size_t size;
-	uint32_t prev_ptr;
-	uint32_t free_ptr;
+	memory_chunk_t *first;
 } memory_manager_t;
 
 void memory_manager_init( memory_manager_t *memory_manager, size_t offset, size_t size );
 void *memory_manager_allocate( memory_manager_t *memory_manager, size_t size );
 void memory_manager_deallocate( memory_manager_t *memory_manager, void **p );
+size_t memory_manager_stats_used( memory_manager_t *memory_manager );
+size_t memory_manager_stats_free( memory_manager_t *memory_manager );
 
 #endif // MEMORYMANAGEMENT_H