浅析mkfifo创建pipe通信管道文件

#include <stdio.h>
#include <fcntl.h>
int main(void)
{
    const char *pipe_name = ".luther.gliethtttp.0";
    int fd;

    unlink(pipe_name);
    mkfifo(pipe_name, 0666);

    fd = open (pipe_name, O_RDWR | O_NDELAY);
    if (fd < 0) {
        printf("Error to open pipe!\n");
        return -1;
    }

    for (;;) {
        static int count = 0;
        char buf[20];
        int len;
        len = sprintf(buf, "%d\n", count++);
        write(fd , buf, len);
        sleep(1);
    }
    return 0;
}

luther@gliethttp:/vobs/tmp$ gcc mkfifo_pipe.c
luther@gliethttp:/vobs/tmp$ ./a.out
打开另一个terminal,运行cat读取.
luther@gliethttp:/vobs/tmp$ cat .luther.gliethtttp.0   // 读取.luther.gliethtttp.0管道发过来的数据.
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