73 lines
2.3 KiB
C
73 lines
2.3 KiB
C
/****************************************************************************
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* mm/mm_gran/mm_granfree.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <assert.h>
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#include <debug.h>
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#include <nuttx/mm/gran.h>
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#include "mm_gran/mm_gran.h"
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#include "mm_gran/mm_grantable.h"
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#ifdef CONFIG_GRAN
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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void gran_free(GRAN_HANDLE handle, FAR void *memory, size_t size)
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{
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FAR gran_t *gran = (FAR gran_t *)handle;
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uint ngran;
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size_t posi;
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int ret;
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DEBUGASSERT(gran && memory && size);
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DEBUGASSERT(GRAN_PRODUCT(gran, memory));
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DEBUGASSERT(GRAN_INRANGE(gran, (((uintptr_t)memory) + size - 1)));
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posi = MEM2GRAN(gran, memory);
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ngran = NGRANULE(gran, size);
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graninfo(" heap=%"PRIxPTR" posi=%zu addr=%zx size=%zu n=%d\n",
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gran->heapstart, posi, (size_t)memory, size, ngran);
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do
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{
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ret = gran_enter_critical(gran);
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DEBUGASSERT(ret == OK || ret == -ECANCELED);
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}
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while (ret < 0); /* Retry upon task cancellation */
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/* check double free */
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DEBUGASSERT(gran_match(gran, posi, ngran, 1, NULL));
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gran_clear(gran, posi, ngran);
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gran_leave_critical(gran);
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}
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#endif /* CONFIG_GRAN */
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