[rtems commit] libcsupport: Have greedy allocations use consume extended memory
Chris Johns
chrisj at rtems.org
Mon Feb 8 06:47:39 UTC 2021
Module: rtems
Branch: master
Commit: 7ca3b283bac78e69f09f6e0e992abf088e7dd16c
Changeset: http://git.rtems.org/rtems/commit/?id=7ca3b283bac78e69f09f6e0e992abf088e7dd16c
Author: Chris Johns <chrisj at rtems.org>
Date: Mon Feb 8 17:27:34 2021 +1100
libcsupport: Have greedy allocations use consume extended memory
- Call the heap extend handler until all memory has been
requested.
Closes #3982
---
cpukit/libcsupport/src/rtems_heap_greedy.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/cpukit/libcsupport/src/rtems_heap_greedy.c b/cpukit/libcsupport/src/rtems_heap_greedy.c
index 4dda398..c02e48d 100644
--- a/cpukit/libcsupport/src/rtems_heap_greedy.c
+++ b/cpukit/libcsupport/src/rtems_heap_greedy.c
@@ -30,8 +30,21 @@ void *rtems_heap_greedy_allocate(
size_t block_count
)
{
+ Heap_Control *heap = RTEMS_Malloc_Heap;
+ size_t size = 128 * 1024 * 1024;
void *opaque;
+ while ( size > 0 ) {
+ opaque = (*rtems_malloc_extend_handler)( heap, size );
+ if ( opaque == NULL ) {
+ size >>= 1;
+ } else {
+ if ( rtems_malloc_dirty_helper != NULL ) {
+ (*rtems_malloc_dirty_helper)( opaque, size );
+ }
+ }
+ }
+
_RTEMS_Lock_allocator();
opaque = _Heap_Greedy_allocate( RTEMS_Malloc_Heap, block_sizes, block_count );
_RTEMS_Unlock_allocator();
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