#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#ifdef __GNUC__
#include <unistd.h>
#endif
#include <time.h>

void startSleep(int second)
{
    while (second)
    {
        printf("%d\n", second);
#ifdef __GNUC__
        sleep(1);
#endif
        --second;
    }
}

void calcMalloc(int count, int size)
{
    double countBackup = count;
    clock_t t1 = clock();
    count = count * 1000;
    while (count--)
    {
        char *buf = (char *)malloc(size);
        free(buf);
    }
    clock_t t2 = clock();
    printf("CLOCKS_PER_SECOND is %d.\n", CLOCKS_PER_SEC);
    printf("cost is %d, average is %f.\n", t2 - t1, (t2 - t1)/countBackup/CLOCKS_PER_SEC);
}

void calcMemset(int count, int size)
{
    double countBackup = count;
    char *buf = (char *)malloc(size);
    clock_t t1 = clock();
    while (count--)
    {
        memset(buf, 0, size);
        memset(buf, 1, size);
    }
    clock_t t2 = clock();
    printf("CLOCKS_PER_SECOND is %d.\n", CLOCKS_PER_SEC);
    printf("cost is %d, average is %f.\n", t2 - t1, (t2 - t1)/countBackup/CLOCKS_PER_SEC);
}

void doMemset(int size)
{
    while (1)
    {
        char *buf = (char *)malloc(size);
        memset(buf, 0, size);
        memset(buf, 1, size);
        free(buf);
    }
}

int main(int argc, char **argv)
{
    int second = atoi(argv[1]);
    int count = atoi(argv[2]);
    int size = atoi(argv[3]);
    printf("second is %d, count is %d, size is %d.\n", second, count, size);
    startSleep(second);
    calcMalloc(count, size);
    calcMemset(count, size);
    doMemset(size);
    return EXIT_SUCCESS;
}