(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
callback
function is called when the request is done. It should match the following prototype:
void callback(mixed $data, int $result[, resource $req]);
data
Arbitrary variable passed to callback
.
Returns:
No value is returned.
Examples:
eio_cancel() example
<?php /* Is called when eio_nop() finished */ function my_nop_cb($data, $result) { echo "my_nop ", $data, "\n"; } // This eio_nop() call will be cancelled $req = eio_nop(EIO_PRI_DEFAULT, "my_nop_cb", "1"); var_dump($req); eio_cancel($req); // This time eio_nop() will be processed eio_nop(EIO_PRI_DEFAULT, "my_nop_cb", "2"); // Process requests eio_event_loop(); ?>
The above example will output something similar to:
resource(4) of type (EIO Request Descriptor) my_nop 2
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