PHP Manual
Eio Funktionen
Create a special or ordinary file

eio_mknod

(PECL eio >= 0.0.1dev)

eio_mknod — Create a special or ordinary file

Beschreibung

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.

Warnung

Diese Funktion ist bis jetzt nicht dokumentiert. Es steht nur die Liste der Argumente zur Verfügung.

Parameter-Liste

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

The request priority: EIO_PRI_DEFAULT, EIO_PRI_MIN, EIO_PRI_MAX, or null. If null passed, pri internally is set to EIO_PRI_DEFAULT.

callback

callback function is called when the request is done. It should match the following prototype:


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

data: is custom data passed to the request.
result: request-specific result value; basically, the value returned by corresponding system call.
req: is optional request resource which can be used with functions like eio_get_last_error()

data

Arbitrary variable passed to callback.

Rückgabewerte

eio_mknod() returns request resource on success,Bei einem Fehler wird false zurückgegeben..

Beispiele

Beispiel #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();
?>

Das oben gezeigte Beispiel erzeugt eine ähnliche Ausgabe wie:

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