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eio_statvfs

(PECL eio >= 0.0.1dev)

eio_statvfsGet file system statistics

说明

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

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

参数

path

Pathname of any file within the mounted file system

pri

请求的优先级:EIO_PRI_DEFAULTEIO_PRI_MINEIO_PRI_MAXnull。如果是 nullpri 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_statvfs() returns request resource on success, 或者在失败时返回 false. On success assigns result argument of callback to an array.

示例

示例 #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();
?>

以上示例的输出类似于:

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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