Changeset 493e405 in rtems for cpukit/score/src/heap.c

Timestamp:

Sep 12, 2007, 8:11:33 PM (13 years ago)

Author:

Joel Sherrill <joel.sherrill@…>

Branches:

4.10, 4.11, 4.8, 4.9, 5, master

Children:

98e398cb

Parents:

8393f3a

Message:

2007-09-12 Sergei Organov <osv@…>

PR 1258/rtems

• cpukit/score/src/heapallocatealigned.c (block_allocate): New routine.
• cpukit/score/src/heapallocatealigned.c (_Heap_Allocate_aligned): Use block_allocate() instead of _Heap_Block_allocate(). Replace _Heap_Head(the_heap)->next with equivalent _Heap_First(the_heap).
• cpukit/score/src/heap.c (_Heap_Allocate): fix comments according to changed block split strategy in _Heap_Allocate_aligned().

File:

• cpukit/score/src/heap.c (modified) (1 diff)

cpukit/score/src/heap.c

@@ -66 +66 @@
  *            +--------------------------------+ <- end = begin + size
  *
- *  This is what a heap looks like after first allocation of SIZE bytes.
- *  BSIZE stands for SIZE + 4 aligned up on 'page_size' boundary if allocation
- *  has been performed by _Heap_Allocate(). If allocation has been performed
- *  by _Heap_Allocate_aligned(), the block size BSIZE is defined differently
- *  (see 'heapallocatealigned.c' for details).
+ *  Below is what a heap looks like after first allocation of SIZE bytes using
+ *  _Heap_allocate(). BSIZE stands for SIZE + 4 aligned up on 'page_size'
+ *  boundary.
+ *  [NOTE: If allocation were performed by _Heap_Allocate_aligned(), the
+ *  block size BSIZE is defined differently, and previously free block will
+ *  be split so that upper part of it will become used block (see
+ *  'heapallocatealigned.c' for details).]
  *
  *            +--------------------------------+ <- begin = starting_address