74 lines
1.5 KiB
C
74 lines
1.5 KiB
C
/*
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* Copyright (c) 2018 Intel Corporation
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <kernel_structs.h>
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#include <cmsis_os.h>
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#define TIME_OUT 100
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/**
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* @brief Create and Initialize a memory pool.
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*/
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osPoolId osPoolCreate(const osPoolDef_t *pool_def)
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{
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if (k_is_in_isr()) {
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return NULL;
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}
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return (osPoolId)pool_def;
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}
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/**
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* @brief Allocate a memory block from a memory pool.
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*/
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void *osPoolAlloc(osPoolId pool_id)
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{
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osPoolDef_t *osPool = (osPoolDef_t *)pool_id;
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void *ptr;
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if (k_mem_slab_alloc((struct k_mem_slab *)(osPool->pool),
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&ptr, TIME_OUT) == 0) {
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return ptr;
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} else {
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return NULL;
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}
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}
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/**
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* @brief Allocate a memory block from a memory pool and set it to zero.
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*/
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void *osPoolCAlloc(osPoolId pool_id)
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{
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osPoolDef_t *osPool = (osPoolDef_t *)pool_id;
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void *ptr;
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if (k_mem_slab_alloc((struct k_mem_slab *)(osPool->pool),
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&ptr, TIME_OUT) == 0) {
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(void)memset(ptr, 0, osPool->item_sz);
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return ptr;
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} else {
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return NULL;
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}
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}
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/**
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* @brief Return an allocated memory block back to a specific memory pool.
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*/
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osStatus osPoolFree(osPoolId pool_id, void *block)
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{
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osPoolDef_t *osPool = (osPoolDef_t *)pool_id;
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/* Note: Below 2 error codes are not supported.
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* osErrorValue: block does not belong to the memory pool.
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* osErrorParameter: a parameter is invalid or outside of a
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* permitted range.
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*/
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k_mem_slab_free((struct k_mem_slab *)(osPool->pool), (void *)&block);
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return osOK;
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}
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