method

fileno

v2_4_6 - Show latest stable - 0 notes - Class: Dir

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fileno() public

Returns the file descriptor used in dir.

d = Dir.new("..")
d.fileno   #=> 8

This method uses dirfd() function defined by POSIX 2008. NotImplementedError is raised on other platforms, such as Windows, which doesn’t provide the function.

Show source

static VALUE
dir_fileno(VALUE dir)
{
    struct dir_data *dirp;
    int fd;

    GetDIR(dir, dirp);
    fd = dirfd(dirp->dir);
    if (fd == -1)
        rb_sys_fail("dirfd");
    return INT2NUM(fd);
}

fileno

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