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linux ÏÂmkfifo £¬¶Á¹ÜµÀ£¬ËùµÃ×Ö·û´®×ÜÊÇÂÒÂë

#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <string.h>
#define FIFO "/mnt/hgfs/ShareFiles/lab3/fifo"
int main()
{
    char *buf;
    int fd;
    unlink( FIFO );
    mkfifo( FIFO, 0777 );

    if ( fork() > 0 )
    {
        char *s = "HelloWorld";
        fd = open( FIFO, O_WRONLY );
        write( fd, s, strlen(s)+1 );
        close( fd );
    }
    else
    {
        fd = open( FIFO, O_RDONLY );
        read( fd, buf, sizeof(buf) );
        printf(" %s\n", buf );
        close( fd );
    }

    return 0;
}
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