98 lines
3.0 KiB
C
98 lines
3.0 KiB
C
|
/****************************************************************************
|
||
|
|
* mm/mm_heap/mm_foreach.c
|
||
|
|
*
|
||
|
|
* Licensed to the Apache Software Foundation (ASF) under one or more
|
||
|
|
* contributor license agreements. See the NOTICE file distributed with
|
||
|
|
* this work for additional information regarding copyright ownership. The
|
||
|
|
* ASF licenses this file to you under the Apache License, Version 2.0 (the
|
||
|
|
* "License"); you may not use this file except in compliance with the
|
||
|
|
* License. You may obtain a copy of the License at
|
||
|
|
*
|
||
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
||
|
|
*
|
||
|
|
* Unless required by applicable law or agreed to in writing, software
|
||
|
|
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
||
|
|
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
||
|
|
* License for the specific language governing permissions and limitations
|
||
|
|
* under the License.
|
||
|
|
*
|
||
|
|
****************************************************************************/
|
||
|
|
|
||
|
|
/****************************************************************************
|
||
|
|
* Included Files
|
||
|
|
****************************************************************************/
|
||
|
|
|
||
|
|
#include <nuttx/config.h>
|
||
|
|
|
||
|
|
#include <assert.h>
|
||
|
|
#include <debug.h>
|
||
|
|
|
||
|
|
#include <nuttx/mm/mm.h>
|
||
|
|
|
||
|
|
#include "mm_heap/mm.h"
|
||
|
|
|
||
|
|
/****************************************************************************
|
||
|
|
* Public Functions
|
||
|
|
****************************************************************************/
|
||
|
|
|
||
|
|
/****************************************************************************
|
||
|
|
* Name: mm_foreach
|
||
|
|
*
|
||
|
|
* Description:
|
||
|
|
* Visit each node to run handler in heap.
|
||
|
|
*
|
||
|
|
****************************************************************************/
|
||
|
|
|
||
|
|
void mm_foreach(FAR struct mm_heap_s *heap, mmchunk_handler_t handler,
|
||
|
|
FAR void *arg)
|
||
|
|
{
|
||
|
|
FAR struct mm_allocnode_s *node;
|
||
|
|
FAR struct mm_allocnode_s *prev;
|
||
|
|
#if CONFIG_MM_REGIONS > 1
|
||
|
|
int region;
|
||
|
|
#else
|
||
|
|
# define region 0
|
||
|
|
#endif
|
||
|
|
|
||
|
|
DEBUGASSERT(handler);
|
||
|
|
|
||
|
|
/* Visit each region */
|
||
|
|
|
||
|
|
#if CONFIG_MM_REGIONS > 1
|
||
|
|
for (region = 0; region < heap->mm_nregions; region++)
|
||
|
|
#endif
|
||
|
|
{
|
||
|
|
prev = NULL;
|
||
|
|
|
||
|
|
/* Visit each node in the region
|
||
|
|
* Retake the semaphore for each region to reduce latencies
|
||
|
|
*/
|
||
|
|
|
||
|
|
DEBUGVERIFY(mm_takesemaphore(heap));
|
||
|
|
|
||
|
|
for (node = heap->mm_heapstart[region];
|
||
|
|
node < heap->mm_heapend[region];
|
||
|
|
node = (FAR struct mm_allocnode_s *)
|
||
|
|
((FAR char *)node + node->size))
|
||
|
|
{
|
||
|
|
minfo("region=%d node=%p size=%u preceding=%u (%c)\n",
|
||
|
|
region, node, (unsigned int)node->size,
|
||
|
|
(unsigned int)(node->preceding & ~MM_ALLOC_BIT),
|
||
|
|
(node->preceding & MM_ALLOC_BIT) ? 'A' : 'F');
|
||
|
|
|
||
|
|
handler(node, arg);
|
||
|
|
|
||
|
|
DEBUGASSERT(prev == NULL ||
|
||
|
|
prev->size == (node->preceding & ~MM_ALLOC_BIT));
|
||
|
|
prev = node;
|
||
|
|
}
|
||
|
|
|
||
|
|
minfo("region=%d node=%p heapend=%p\n",
|
||
|
|
region, node, heap->mm_heapend[region]);
|
||
|
|
DEBUGASSERT(node == heap->mm_heapend[region]);
|
||
|
|
|
||
|
|
mm_givesemaphore(heap);
|
||
|
|
}
|
||
|
|
#undef region
|
||
|
|
}
|