update project structures

[lunaix-os.git] / lunaix-os / includes / lunaix / mm / dmm.h

diff --git a/lunaix-os/includes/lunaix/mm/dmm.h b/lunaix-os/includes/lunaix/mm/dmm.h
index e8c3b6fa43a8697b05d55d0f37e3dff0aef47ffd..22b0539391248ba746236e7f9422f821654c2e68 100644 (file)
--- a/lunaix-os/includes/lunaix/mm/dmm.h
+++ b/lunaix-os/includes/lunaix/mm/dmm.h
@@ -4,20 +4,51 @@
 
 #include <stddef.h>
 
+#define M_ALLOCATED 0x1
+#define M_PREV_FREE 0x2
+
+#define M_NOT_ALLOCATED 0x0
+#define M_PREV_ALLOCATED 0x0
+
+#define CHUNK_S(header) ((header) & ~0x3)
+#define CHUNK_PF(header) ((header)&M_PREV_FREE)
+#define CHUNK_A(header) ((header)&M_ALLOCATED)
+
+#define PACK(size, flags) (((size) & ~0x3) | (flags))
+
+#define SW(p, w) (*((uint32_t*)(p)) = w)
+#define LW(p) (*((uint32_t*)(p)))
+
+#define HPTR(bp) ((uint32_t*)(bp)-1)
+#define BPTR(bp) ((uint8_t*)(bp) + WSIZE)
+#define FPTR(hp, size) ((uint32_t*)(hp + size - WSIZE))
+#define NEXT_CHK(hp) ((uint8_t*)(hp) + CHUNK_S(LW(hp)))
+
+#define BOUNDARY 4
+#define WSIZE 4
+
 #define HEAP_INIT_SIZE 4096
 
+typedef struct 
+{
+    void* start;
+    void* brk;
+    void* max_addr;
+} heap_context_t;
+
+
 int
-dmm_init();
+dmm_init(heap_context_t* heap);
 
 int
-lxsbrk(void* addr);
+lxsbrk(heap_context_t* heap, void* addr);
 void*
-lxbrk(size_t size);
+lxbrk(heap_context_t* heap, size_t size);
 
 void*
-lx_malloc(size_t size);
+lx_malloc_internal(heap_context_t* heap, size_t size);
 
 void
-lx_free(void* ptr);
+lx_free_internal(void* ptr);
 
 #endif /* __LUNAIX_DMM_H */