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This document uses PHP Chinese website manual Release
(PECL eio >= 0.0.1dev)
eio_statvfs — Get file system statistics
$path
, int $pri
, callable $callback
[, mixed $data
] ) eio_statvfs() returns file system statistics information in
result
argument of callback
path
Pathname of any file within the mounted file system
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
.
eio_statvfs() returns request resource on success or
FALSE
on error. On success assigns result
argument of
callback
to an array.
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 ();
?>
以上例程的输出类似于:
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) }