eio_custom executes custom function specified by execute processing it just like any other eio_* call.
Specifies the request function that should match the following prototype: callback is event completion callback that should match the following prototype: data is the data passed to execute via data argument without modifications result value returned by execute
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 function is called when the request is done. It should match the following prototype:
void callback(mixed $data, int $result[, resource $req]);
is custom data passed to the request.
request-specific result value; basically, the value returned by corresponding system call.
is optional request resource which can be used with functions like eio_get_last_error
Arbitrary variable passed to callback.
eio_custom returns request resource on success, or false on failure.