(PECL eio >= 0.0.1dev)
eio_syncfs — Calls Linux' syncfs syscall, if available
$fd
,$pri
= EIO_PRI_DEFAULT,$callback
= NULL,$data
= NULL
fd
File descriptor
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_syncfs() returns request resource on success, 或者在失败时返回 false
.
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