(PECL eio >= 0.0.1dev)
Cancels a request
void eio_cancel ( resource $req )
eio_cancel() cancels a request specified by req
Parameters:
req
The request resource
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