redis是怎么存储数据的

参考我下面的程序， 可以通过修改宏定义 M 来修改发送的数字 M

#include 

 
#include 
 


  #define M 6

int main()
{
    int pipefd[2];
    int pid;
    int m;

    if (pipe(pipefd) < 0)
    {
        printf("Unable to create pipe!\n");
        return 1;
    }

    pid = fork();

    if (pid > 0) //parent
    {
        m = M;
        close(pipefd[0]); //close read end
        write(pipefd[1], &m, sizeof(int)); //write M
        wait(NULL); // wait for child complete
        close(pipefd[1]);
    }
    else if (pid == 0)
    {
        close(pipefd[1]);
        read(pipefd[0], &m, sizeof(int)); //read M
        while(m>0)
        {
            printf("Hello world.\n");
            m--;
        }
        close(pipefd[0]);
    }
    else
    {
        printf("Unable to fork!\n");
        return 1;
    }

    return 0;
}