fifo1.c

来自「unix环境高级编程的源代码」· C语言 代码 · 共 26 行

#include    <sys/types.h>
#include    <sys/stat.h>
#include    <fcntl.h>
#include    "ourhdr.h"

#define    FIFO    "temp.fifo"

int
main(void)
{
    int        fdread, fdwrite;

    unlink(FIFO);
    if (mkfifo(FIFO, FILE_MODE) < 0)
        err_sys("mkfifo error");

    if ( (fdread = open(FIFO, O_RDONLY | O_NONBLOCK)) < 0)
        err_sys("open error for reading");
    if ( (fdwrite = open(FIFO, O_WRONLY)) < 0)
        err_sys("open error for writing");

    clr_fl(fdread, O_NONBLOCK);

    exit(0);
}