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Diffstat (limited to 'cpukit/score/macros/rtems/score/heap.inl')
| -rw-r--r-- | cpukit/score/macros/rtems/score/heap.inl | 221 |
1 files changed, 221 insertions, 0 deletions
diff --git a/cpukit/score/macros/rtems/score/heap.inl b/cpukit/score/macros/rtems/score/heap.inl new file mode 100644 index 0000000000..78accba6b1 --- /dev/null +++ b/cpukit/score/macros/rtems/score/heap.inl @@ -0,0 +1,221 @@ +/* heap.inl + * + * This file contains the macro implementation of the inlined + * routines from the heap handler. + * + * COPYRIGHT (c) 1989-1999. + * On-Line Applications Research Corporation (OAR). + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.rtems.com/license/LICENSE. + * + * $Id$ + */ + +#ifndef _RTEMS_SCORE_HEAP_INL +#define _RTEMS_SCORE_HEAP_INL + +/* + * WARNING: this file is only visually checked against + * '../../../inline/rtems/score/heap.inl'. Use those file for reference + * if you encounter problems. + */ + +#include <rtems/score/address.h> + +/*PAGE + * + * _Heap_Head + */ + +#define _Heap_Head( _the_heap ) (&(_the_heap)->free_list) + +/*PAGE + * + * _Heap_Tail + */ + +#define _Heap_Tail( _the_heap ) (&(_the_heap)->free_list) + +/*PAGE + * + * _Heap_First + */ + +#define _Heap_First( _the_heap ) (_Heap_Head(_the_heap)->next) + +/*PAGE + * + * _Heap_Last + */ + +#define _Heap_Last( _the_heap ) (_Heap_Tail(_the_heap)->prev) + +/*PAGE + * + * _Heap_Block_remove + * + */ + +#define _Heap_Block_remove( _the_block ) \ + do { \ + Heap_Block *block = (_the_block); \ + Heap_Block *next = block->next; \ + Heap_Block *prev = block->prev; \ + prev->next = next; \ + next->prev = prev; \ + } while(0) + +/*PAGE + * + * _Heap_Block_replace + * + */ + +#define _Heap_Block_replace( _old_block, _new_block ) \ + do { \ + Heap_Block *block = (_old_block); \ + Heap_Block *next = block->next; \ + Heap_Block *prev = block->prev; \ + block = (_new_block); \ + block->next = next; \ + block->prev = prev; \ + next->prev = prev->next = block; \ + } while(0) + +/*PAGE + * + * _Heap_Block_insert_after + * + */ + +#define _Heap_Block_insert_after( _prev_block, _the_block ) \ + do { \ + Heap_Block *prev = (_prev_block); \ + Heap_Block *block = (_the_block); \ + Heap_Block *next = prev->next; \ + block->next = next; \ + block->prev = prev; \ + next->prev = prev->next = block; \ + } while(0) + +/*PAGE + * + * _Heap_Is_aligned + */ + +#define _Heap_Is_aligned( _value, _alignment ) \ + (((_value) % (_alignment)) == 0) + +/*PAGE + * + * _Heap_Align_up + */ + +#define _Heap_Align_up( _value, _alignment ) \ + do { \ + uint32_t v = *(_value); \ + uint32_t a = (_alignment); \ + uint32_t r = v % a; \ + *(_value) = r ? v - r + a : v; \ + } while(0) + +/*PAGE + * + * _Heap_Align_down + */ + +#define _Heap_Align_down( _value, _alignment ) \ + do { \ + uint32_t v = *(_value); \ + *(_value) = v - (v % (_alignment)); \ + } while(0) + +/*PAGE + * + * _Heap_Is_aligned_ptr + */ + +#define _Heap_Is_aligned_ptr( _ptr, _alignment ) \ + ((_H_p2u(_ptr) % (_alignment)) == 0) + +/*PAGE + * + * _Heap_Align_up_uptr + */ + +#define _Heap_Align_up_uptr( _value, _alignment ) \ + do { \ + _H_uptr_t v = *(_value); \ + uint32_t a = (_alignment); \ + _H_uptr_t r = v % a; \ + *(_value) = r ? v - r + a : v; \ + } while(0) + +/*PAGE + * + * _Heap_Align_down_uptr + */ + +#define _Heap_Align_down_uptr( _value, _alignment ) \ + do { \ + _H_uptr_t v = *(_value); \ + *(_value) = v - (v % (_alignment)); \ + } while(0) + +/*PAGE + * + * _Heap_Block_at + */ + +#define _Heap_Block_at( _base, _offset ) \ + ( (Heap_Block *) _Addresses_Add_offset( (_base), (_offset) ) ) + +/*PAGE + * + * _Heap_User_area + */ + +#define _Heap_User_area( _the_block ) \ + ((void *) _Addresses_Add_offset( (_the_block), HEAP_BLOCK_USER_OFFSET )) + +/*PAGE + * + * _Heap_Start_of_block + */ + +#define _Heap_Start_of_block( _the_heap, _base, _the_block_ptr ) \ + do { \ + _H_uptr_t addr = _H_p2u(_base); \ + _Heap_Align_down( &addr, (_the_heap)->page_size ); \ + *(_the_block_ptr) = (Heap_Block *)(addr - HEAP_BLOCK_USER_OFFSET); \ + } while(0) + +/*PAGE + * + * _Heap_Is_prev_used + */ + +#define _Heap_Is_prev_used( _the_block ) \ + ((_the_block)->size & HEAP_PREV_USED) + +/*PAGE + * + * _Heap_Block_size + */ + +#define _Heap_Block_size( _the_block ) \ + ((_the_block)->size & ~HEAP_PREV_USED) + +/*PAGE + * + * _Heap_Is_block_in + */ + +#define _Heap_Is_block_in( _the_heap, _the_block ) \ + ( _Addresses_Is_in_range( (_the_block), \ + (_the_heap)->start, (_the_heap)->final ) ) + +#endif +/* end of include file */ |