rt-thread/examples/kernel/heap_realloc.c

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/*
* Copyright (c) 2006-2021, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
*
*/
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#include <rtthread.h>
#include "tc_comm.h"
/*
* This is an example for heap malloc
*/
static rt_bool_t mem_check(rt_uint8_t *ptr, rt_uint8_t value, rt_uint32_t len)
{
while (len)
{
if (*ptr != value) return RT_FALSE;
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ptr ++;
len --;
}
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return RT_TRUE;
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}
static void heap_realloc_init()
{
rt_uint8_t res = TC_STAT_PASSED;
rt_uint8_t *ptr1, *ptr2, *ptr3, *ptr4, *ptr5;
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ptr1 = rt_malloc(1);
ptr2 = rt_malloc(13);
ptr3 = rt_malloc(31);
ptr4 = rt_malloc(127);
ptr5 = rt_malloc(0);
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memset(ptr1, 1, 1);
memset(ptr2, 2, 13);
memset(ptr3, 3, 31);
memset(ptr4, 4, 127);
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if (mem_check(ptr1, 1, 1) == RT_FALSE)
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{
res = TC_STAT_FAILED;
goto _free;
}
if (mem_check(ptr2, 2, 13) == RT_FALSE)
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{
res = TC_STAT_FAILED;
goto _free;
}
if (mem_check(ptr3, 3, 31) == RT_FALSE)
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{
res = TC_STAT_FAILED;
goto _free;
}
if (mem_check(ptr4, 4, 127) == RT_FALSE)
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{
res = TC_STAT_FAILED;
goto _free;
}
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ptr1 = rt_realloc(ptr1, 13);
ptr2 = rt_realloc(ptr2, 31);
ptr3 = rt_realloc(ptr3, 127);
ptr4 = rt_realloc(ptr4, 1);
ptr5 = rt_realloc(ptr5, 0);
if (ptr5)
{
rt_kprintf("realloc(ptr, 0) should return NULL\n");
res = TC_STAT_FAILED;
}
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if (mem_check(ptr1, 1, 1) == RT_FALSE)
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res = TC_STAT_FAILED;
if (mem_check(ptr2, 2, 13) == RT_FALSE)
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res = TC_STAT_FAILED;
if (mem_check(ptr3, 3, 31) == RT_FALSE)
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res = TC_STAT_FAILED;
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if (mem_check(ptr4, 4, 1) == RT_FALSE)
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res = TC_STAT_FAILED;
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_free:
rt_free(ptr4);
rt_free(ptr3);
rt_free(ptr2);
rt_free(ptr1);
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tc_done(res);
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}
#ifdef RT_USING_TC
int _tc_heap_realloc()
{
heap_realloc_init();
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return 0;
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}
FINSH_FUNCTION_EXPORT(_tc_heap_realloc, a heap re-malloc test);
#else
int rt_application_init()
{
heap_realloc_init();
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return 0;
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}
#endif