Get file system statistics

# eio_statvfs

(PECL eio >= 0.0.1dev)

eio_statvfs — Get file system statistics

### Description

eio_statvfs(
string `$path`,
int `$pri`,
callable `$callback`,
mixed `$data` = ?
): resource

eio_statvfs() returns file system statistics information in `result` argument of `callback`

### Parameters

`path`
  Pathname of any file within the mounted file system
`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`.

### Return Values

eio_statvfs() returns request resource on success, or `false` on failure. On success assigns `result` argument of `callback` to an array.

### Examples

Example #1 eio_statvfs() example

`<?php
$tmp_filename = '/tmp/eio-file.tmp';
touch($tmp_filename);
function my_statvfs_callback($data, $result) {
var_dump($data);
var_dump($result);
@unlink($data);
}
eio_statvfs($tmp_filename, EIO_PRI_DEFAULT, "my_statvfs_callback", $tmp_filename);
eio_event_loop();
?>`

The above example will output something similar to:

    string(17) "/tmp/eio-file.tmp"
    array(11) {
      ["f_bsize"]=>
      int(4096)
      ["f_frsize"]=>
      int(4096)
      ["f_blocks"]=>
      int(262144)
      ["f_bfree"]=>
      int(262111)
      ["f_bavail"]=>
      int(262111)
      ["f_files"]=>
      int(1540815)
      ["f_ffree"]=>
      int(1540743)
      ["f_favail"]=>
      int(1540743)
      ["f_fsid"]=>
      int(0)
      ["f_flag"]=>
      int(4102)
      ["f_namemax"]=>
      int(255)
    }

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