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53 lines
995 B
C
53 lines
995 B
C
/*
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* Copyright (c) 2006-2022, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2018-08-24 yangjie the first version
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* 2020-10-17 Meco Man translate to English comment
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*/
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/*
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* Demo: heap
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*
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* This demo demonstrates allocating memory from the heap
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*
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*/
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#include <FreeRTOS.h>
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// Set to 1 if using heap_5.c
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#define USE_HEAP_5 0
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#if USE_HEAP_5 == 1
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rt_uint8_t heap[512];
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HeapRegion_t heap_regions[] =
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{
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{heap, 512},
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{NULL, 0}
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};
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#endif
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int heap_sample(void)
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{
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#if USE_HEAP_5 == 1
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vPortDefineHeapRegions(heap_regions);
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#endif
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rt_uint8_t *ptr = pvPortMalloc(128);
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if (ptr == RT_NULL)
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{
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rt_kprintf("Memory allocation failed.\n");
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return -1;
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}
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for (rt_uint8_t i = 0; i < 128; i++)
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{
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ptr[i] = i;
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}
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vPortFree(ptr);
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return 0;
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}
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MSH_CMD_EXPORT(heap_sample, heap sample);
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