#include <sys/stat.h>

#include <sys/types.h>

#include <stdio.h>

#include <errno.h>

#include <fcntl.h>

#define MKFIFO "./myfifo"

int main()

{

    int ret;

    ret = mkfifo (MKFIFO,);//创建有名管道文件

    if((ret < )&&errno != EEXIST)

    {

        printf("error\n");

    }

    int fd = open (MKFIFO,O_RDWR);//打开文件

    char buff[] = {};

    ret = read (fd,buff,);//读取内容

    int fd1 = open ("1.c",O_RDWR | O_CREAT | O_TRUNC,);

    write (fd1,buff,ret);

    printf ("recv %s\n",buff);

    close (fd);

    close (fd1);

    return ;

}

#include <sys/stat.h>

#include <sys/types.h>

#include <stdio.h>

#include <errno.h>

#include <fcntl.h>

#define MKFIFO "./myfifo"

int main()

{

    int ret;

    ret = mkfifo(MKFIFO,);//创建管道文件

    if ((ret < ) && errno != EEXIST)

    {

        perror("mkfifo");

        return -;

    }

    int fd;

    fd = open (MKFIFO,O_RDWR);//打开管道文件

    char buff[] = {};

    ret = read (,buff,);//从键盘输入

    ret = write (fd,buff,ret);//写到文件

    printf ("sent a msg:%s\n",buff);

    close (fd);

    return ;

}