eio_fstatvfs

(PECL eio >= 0.0.1dev)

eio_fstatvfs — Get file system statistics

resource eio_fstatvfs ( int $fd , int $pri , callable $callback [, mixed $data ] )

eio_fstatvfs() returns file system statistics in result of callback.

fd

A file descriptor of a file within the mounted file system.

pri

请求的优先级: EIO_PRI_DEFAULT, EIO_PRI_MIN, EIO_PRI_MAX, or NULL. 如果是 NULL , pri 将设为 EIO_PRI_DEFAULT.

callback

callback 函数将在请求结束时被调用. 必须符合此原型:


void callback($data, $result);

$data 是传给该请求的特定数据. $result 包含特定请求的结果值, 通常是相应的系统调用的返回值.

data

Arbitrary variable passed to callback.

eio_fstatvfs() returns request resource on success or FALSE on error.