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authorSebastian Huber <sebastian.huber@embedded-brains.de>2013-06-25 12:09:50 +0200
committerSebastian Huber <sebastian.huber@embedded-brains.de>2013-06-25 17:03:22 +0200
commitd0d357edeb8527becced15e2784b92790d2b22c1 (patch)
tree64985dad8d48fe6b888a7d4faaf3b3cc18c6c7d5 /cpukit/score/include
parentheap: Free all delayed blocks during resize (diff)
downloadrtems-d0d357edeb8527becced15e2784b92790d2b22c1.tar.bz2
heap: Add _Heap_Greedy_allocate_all_except_largest
Add rtems_workspace_greedy_allocate_all_except_largest() and rtems_heap_greedy_allocate_all_except_largest().
Diffstat (limited to 'cpukit/score/include')
-rw-r--r--cpukit/score/include/rtems/score/heap.h16
1 files changed, 15 insertions, 1 deletions
diff --git a/cpukit/score/include/rtems/score/heap.h b/cpukit/score/include/rtems/score/heap.h
index 2937490896..bea9f3ec25 100644
--- a/cpukit/score/include/rtems/score/heap.h
+++ b/cpukit/score/include/rtems/score/heap.h
@@ -595,7 +595,7 @@ void _Heap_Iterate(
/**
* @brief Greedy allocate that empties the heap.
*
- * Afterward the heap has at most @a block_count allocateable blocks of sizes
+ * Afterwards the heap has at most @a block_count allocatable blocks of sizes
* specified by @a block_sizes. The @a block_sizes must point to an array with
* @a block_count members. All other blocks are used.
*
@@ -608,6 +608,20 @@ Heap_Block *_Heap_Greedy_allocate(
);
/**
+ * @brief Greedy allocate all blocks except the largest free block.
+ *
+ * Afterwards the heap has at most one allocatable block. This block is the
+ * largest free block if it exists. The allocatable size of this block is
+ * stored in @a allocatable_size. All other blocks are used.
+ *
+ * @see _Heap_Greedy_free().
+ */
+Heap_Block *_Heap_Greedy_allocate_all_except_largest(
+ Heap_Control *heap,
+ uintptr_t *allocatable_size
+);
+
+/**
* @brief Frees blocks of a greedy allocation.
*
* The @a blocks must be the return value of _Heap_Greedy_allocate().