malloc_example.cpp

malloc_example.cpp

#include "mbed.h"

void *array[1000];

int main()
{
    void *data = NULL;

    int count = 0;
    int size = 100;
    printf("*** main begin ***\r\n");
    printf("\r\n");

    printf("*** test begin ***\r\n");

    int loop = 10;
    while(loop)
    {
        void *tmp_data = malloc(size);
        if (NULL != tmp_data)
        { 
            data = tmp_data; 
            array[count++] = tmp_data;
            memset((void *)data, 0x10, size);
            printf("%d. malloc data: %p size = %d \n", loop, data, size);
            size += 2000;
            if (size > 10000) {
                size %= 127;
            }
        } else {
            for (int i = 0; i < count; i++) 
            {
                printf("free data: %p \n", array[i]);
                free(array[i]);
                array[i] = NULL;
            }
            loop--;
            count = 0;
            size += 300;
            continue;
        }
    }
    printf("*** test end ***\r\n\r\n");
    printf("\r\n");
}