PHP
处理控制 | Process Control

eio_poll

eio_poll

(PECL eio >= 0.0.1dev)

eio_poll — Can be to be called whenever there are pending requests that need finishing.

Description

int eio_poll ( void )

eio_poll() can be used to implement special event loop. For this eio_nreqs() could be used to test if there are unprocessed requests.

Note: Applicable only when implementing userspace event loop.

Parameters

This function has no parameters.

Return Values

If any request invocation returns a non-zero value, returns that value. Otherwise, it returns 0.

Examples

Example #1 eio_poll() example

<?php function res_cb($data, $result) {     var_dump($data     var_dump($result } eio_nop(EIO_PRI_DEFAULT, "res_cb", "1" eio_nop(EIO_PRI_DEFAULT, "res_cb", "2" eio_nop(EIO_PRI_DEFAULT, "res_cb", "3" while (eio_nreqs()) {     // Some specific IPC or so     eio_poll( } ?>

The above example will output something similar to:

string(1) "1" int(0) string(1) "3" int(0) string(1) "2" int(0)

See Also

  • eio_nreqs

← eio_open

eio_read →

© 1997–2017 The PHP Documentation Group

Licensed under the Creative Commons Attribution License v3.0 or later.

https://secure.php.net/manual/en/function.eio-poll.php