mm/mm.h: add mm_free_delaylist interface

This adds explicit `void mm_free_delaylist(heap)` interface so that
to force freeing the heap's delaylist.

Signed-off-by: Yanfeng Liu <yfliu2008@qq.com>

arch/sim/src/sim/sim_heap.c

@@ -97,7 +97,7 @@ static void mm_add_delaylist(struct mm_heap_s *heap, void *mem)
 #endif
 }
 
-static bool mm_free_delaylist(struct mm_heap_s *heap, bool force)
+static bool free_delaylist(struct mm_heap_s *heap, bool force)
 {
   bool ret = false;
 #if defined(CONFIG_BUILD_FLAT) || defined(__KERNEL__)
@@ -293,6 +293,22 @@ void mm_free(struct mm_heap_s *heap, void *mem)
   mm_delayfree(heap, mem, CONFIG_MM_FREE_DELAYCOUNT_MAX > 0);
 }
 
+/****************************************************************************
+ * Name: mm_free_delaylist
+ *
+ * Description:
+ *   force freeing the delaylist of this heap.
+ *
+ ****************************************************************************/
+
+void mm_free_delaylist(FAR struct mm_heap_s *heap)
+{
+  if (heap)
+    {
+       free_delaylist(heap, true);
+    }
+}
+
 /****************************************************************************
  * Name: mm_realloc
  *
@@ -324,7 +340,7 @@ void *mm_realloc(struct mm_heap_s *heap, void *oldmem,
   int usmblks;
   int newsize;
 
-  mm_free_delaylist(heap, false);
+  free_delaylist(heap, false);
 
   if (size == 0)
     {
@@ -351,7 +367,7 @@ void *mm_realloc(struct mm_heap_s *heap, void *oldmem,
   while (atomic_compare_exchange_weak(&heap->usmblks, &usmblks, uordblks));
 
 #if CONFIG_MM_FREE_DELAYCOUNT_MAX > 0
-  if (mem == NULL && mm_free_delaylist(heap, true))
+  if (mem == NULL && free_delaylist(heap, true))
     {
       return mm_realloc(heap, oldmem, size);
     }
@@ -420,7 +436,7 @@ void *mm_memalign(struct mm_heap_s *heap, size_t alignment, size_t size)
   int uordblks;
   int usmblks;
 
-  mm_free_delaylist(heap, false);
+  free_delaylist(heap, false);
   mem = host_memalign(alignment, size);
 
   if (mem == NULL)
@@ -444,7 +460,7 @@ void *mm_memalign(struct mm_heap_s *heap, size_t alignment, size_t size)
   while (atomic_compare_exchange_weak(&heap->usmblks, &usmblks, uordblks));
 
 #if CONFIG_MM_FREE_DELAYCOUNT_MAX > 0
-  if (mem == NULL && mm_free_delaylist(heap, true))
+  if (mem == NULL && free_delaylist(heap, true))
     {
       return mm_memalign(heap, alignment, size);
     }

include/nuttx/mm/mm.h

@@ -263,6 +263,8 @@ void kmm_addregion(FAR void *heapstart, size_t heapsize);
 
 FAR void *mm_malloc(FAR struct mm_heap_s *heap, size_t size) malloc_like1(2);
 
+void mm_free_delaylist(FAR struct mm_heap_s *heap);
+
 /* Functions contained in kmm_malloc.c **************************************/
 
 #ifdef CONFIG_MM_KERNEL_HEAP

mm/mm_heap/mm_malloc.c

@@ -137,6 +137,22 @@ void mm_mempool_dump_handle(FAR struct mempool_s *pool, FAR void *arg)
  * Public Functions
  ****************************************************************************/
 
+/****************************************************************************
+ * Name: mm_free_delaylist
+ *
+ * Description:
+ *   force freeing the delaylist of this heap.
+ *
+ ****************************************************************************/
+
+void mm_free_delaylist(FAR struct mm_heap_s *heap)
+{
+  if (heap)
+    {
+       free_delaylist(heap, true);
+    }
+}
+
 /****************************************************************************
  * Name: mm_malloc
  *

mm/tlsf/mm_tlsf.c

@@ -1447,3 +1447,19 @@ FAR void *mm_zalloc(FAR struct mm_heap_s *heap, size_t size)
 
   return alloc;
 }
+
+/****************************************************************************
+ * Name: mm_free_delaylist
+ *
+ * Description:
+ *   force freeing the delaylist of this heap.
+ *
+ ****************************************************************************/
+
+void mm_free_delaylist(FAR struct mm_heap_s *heap)
+{
+  if (heap)
+    {
+       free_delaylist(heap, true);
+    }
+}