libogc/lwp_heap.inl

   1 #ifndef __LWP_HEAP_INL__
   2 #define __LWP_HEAP_INL__
   3
   4 static __inline__ heap_block* __lwp_heap_head(heap_cntrl *theheap)
   5 {
   6         return (heap_block*)&theheap->start;
   7 }
   8
   9 static __inline__ heap_block* __lwp_heap_tail(heap_cntrl *heap)
  10 {
  11         return (heap_block*)&heap->final;
  12 }
  13
  14 static __inline__ heap_block* __lwp_heap_prevblock(heap_block *block)
  15 {
  16         return (heap_block*)((char*)block - (block->back_flag&~HEAP_BLOCK_USED));
  17 }
  18
  19 static __inline__ heap_block* __lwp_heap_nextblock(heap_block *block)
  20 {
  21         return (heap_block*)((char*)block + (block->front_flag&~HEAP_BLOCK_USED));
  22 }
  23
  24 static __inline__ heap_block* __lwp_heap_blockat(heap_block *block,u32 offset)
  25 {
  26         return (heap_block*)((char*)block + offset);
  27 }
  28
  29 static __inline__ heap_block* __lwp_heap_usrblockat(void *ptr)
  30 {
  31         u32 offset = *(((u32*)ptr)-1);
  32         return __lwp_heap_blockat(ptr,-offset+-HEAP_BLOCK_USED_OVERHEAD);
  33 }
  34
  35 static __inline__ bool __lwp_heap_prev_blockfree(heap_block *block)
  36 {
  37         return !(block->back_flag&HEAP_BLOCK_USED);
  38 }
  39
  40 static __inline__ bool __lwp_heap_blockfree(heap_block *block)
  41 {
  42         return !(block->front_flag&HEAP_BLOCK_USED);
  43 }
  44
  45 static __inline__ bool __lwp_heap_blockused(heap_block *block)
  46 {
  47         return (block->front_flag&HEAP_BLOCK_USED);
  48 }
  49
  50 static __inline__ u32 __lwp_heap_blocksize(heap_block *block)
  51 {
  52         return (block->front_flag&~HEAP_BLOCK_USED);
  53 }
  54
  55 static __inline__ void* __lwp_heap_startuser(heap_block *block)
  56 {
  57         return (void*)&block->next;
  58 }
  59
  60 static __inline__ bool __lwp_heap_blockin(heap_cntrl *heap,heap_block *block)
  61 {
  62         return ((u32)block>=(u32)heap->start && (u32)block<=(u32)heap->final);
  63 }
  64
  65 static __inline__ bool __lwp_heap_pgsize_valid(u32 pgsize)
  66 {
  67         return (pgsize!=0 && ((pgsize%PPC_ALIGNMENT)==0));
  68 }
  69
  70 static __inline__ u32 __lwp_heap_buildflag(u32 size,u32 flag)
  71 {
  72         return (size|flag);
  73 }
  74
  75 #endif