gc/ogc/lwp_heap.h

   1 #ifndef __LWP_HEAP_H__
   2 #define __LWP_HEAP_H__
   3
   4 #include <gctypes.h>
   5 #include <asm.h>
   6
   7 #define HEAP_BLOCK_USED                                 1
   8 #define HEAP_BLOCK_FREE                                 0
   9
  10 #define HEAP_DUMMY_FLAG                                 (0+HEAP_BLOCK_USED)
  11
  12 #define HEAP_OVERHEAD                                   (sizeof(u32)*2)
  13 #define HEAP_BLOCK_USED_OVERHEAD                (sizeof(void*)*2)
  14 #define HEAP_MIN_SIZE                                   (HEAP_OVERHEAD+sizeof(heap_block))
  15
  16 #ifdef __cplusplus
  17 extern "C" {
  18 #endif
  19
  20 typedef struct _heap_block_st heap_block;
  21 struct _heap_block_st {
  22         u32 back_flag;
  23         u32 front_flag;
  24         heap_block *next;
  25         heap_block *prev;
  26 };
  27
  28 typedef struct _heap_iblock_st {
  29         u32 free_blocks;
  30         u32 free_size;
  31         u32 used_blocks;
  32         u32 used_size;
  33 } heap_iblock;
  34
  35 typedef struct _heap_cntrl_st {
  36         heap_block *start;
  37         heap_block *final;
  38
  39         heap_block *first;
  40         heap_block *perm_null;
  41         heap_block *last;
  42         u32 pg_size;
  43         u32 reserved;
  44 } heap_cntrl;
  45
  46 u32 __lwp_heap_init(heap_cntrl *theheap,void *start_addr,u32 size,u32 pg_size);
  47 void* __lwp_heap_allocate(heap_cntrl *theheap,u32 size);
  48 BOOL __lwp_heap_free(heap_cntrl *theheap,void *ptr);
  49 u32 __lwp_heap_getinfo(heap_cntrl *theheap,heap_iblock *theinfo);
  50
  51 #ifdef LIBOGC_INTERNAL
  52 #include <libogc/lwp_heap.inl>
  53 #endif
  54
  55 #ifdef __cplusplus
  56         }
  57 #endif
  58
  59 #endif