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    eio_mknod

    (PECL eio >= 0.0.1dev)

    eio_mknod — Create a special or ordinary file

    说明

    eio_mknod(
        string $path,
        int $mode,
        int $dev,
        int $pri = EIO_PRI_DEFAULT,
        callable $callback = NULL,
        mixed $data = NULL
    ): resource

    eio_mknod() creates ordinary or special(often) file.

    警告

    本函数还未编写文档，仅有参数列表。

    参数

    path

    Path for the new node(file).

    mode

    Specifies both the permissions to use and the type of node to be created. It should be a combination (using bitwise OR) of one of the file types listed below and the permissions for the new node(e.g. 0640). Possible file types are: EIO_S_IFREG(regular file), EIO_S_IFCHR(character file), EIO_S_IFBLK(block special file), EIO_S_IFIFO(FIFO - named pipe) and EIO_S_IFSOCK(UNIX domain socket). To specify permissions EIO_S_I* constants could be used.

    dev

    If the file type is EIO_S_IFCHR or EIO_S_IFBLK then dev specifies the major and minor numbers of the newly created device special file. Otherwise dev ignored. See mknod(2) man page for details.

    pri

    请求的优先级：EIO_PRI_DEFAULT，EIO_PRI_MIN，EIO_PRI_MAX 或 null。如果是 null，pri 将设为 EIO_PRI_DEFAULT。

    callback

    callback 函数在请求完成时被调用。其应匹配一下原型：

    void callback(mixed $data, int $result[, resource $req]);
    data

    传递给请求的用户数据。

    result

    针对请求的结果的值。通常是相应的系统调用返回的值。

    req

    可选的请求资源，可被 eio_get_last_error() 之类的函数使用。

    data

    Arbitrary variable passed to callback.

    返回值

    eio_mknod() returns request resource on success, 或者在失败时返回 false.

    示例

    示例 #1 eio_mknod() example

    <?php
    // FIFO name
    $temp_filename = "/tmp/eio-temp-fifo";

    /* Is called when eio_mknod() finishes */
    function my_mknod_callback($data, $result) {
    $s = stat($data);
    var_dump($s);

    if (    $result == 0) {
    echo     "eio_mknod_ok";
    }

    @    unlink($data);
    }

    eio_mknod($temp_filename, EIO_S_IFIFO, 0,
    EIO_PRI_DEFAULT, "my_mknod_callback", $temp_filename);
    eio_event_loop();
    ?>

    以上示例的输出类似于：

    array(26) {
  [0]=>
  int(17)
  [1]=>
  int(2337608)
  [2]=>
  int(4096)
  [3]=>
  int(1)
  [4]=>
  int(1000)
  [5]=>
  int(100)
  [6]=>
  int(0)
  [7]=>
  int(0)
  [8]=>
  int(1318241261)
  [9]=>
  int(1318241261)
  [10]=>
  int(1318241261)
  [11]=>
  int(4096)
  [12]=>
  int(0)
  ["dev"]=>
  int(17)
  ["ino"]=>
  int(2337608)
  ["mode"]=>
  int(4096)
  ["nlink"]=>
  int(1)
  ["uid"]=>
  int(1000)
  ["gid"]=>
  int(100)
  ["rdev"]=>
  int(0)
  ["size"]=>
  int(0)
  ["atime"]=>
  int(1318241261)
  ["mtime"]=>
  int(1318241261)
  ["ctime"]=>
  int(1318241261)
  ["blksize"]=>
  int(4096)
  ["blocks"]=>
  int(0)
}
eio_mknod_ok

    参见

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