Php/docs/function.eio-poll

• PHP Manual
• Eio 函数
• Can be to be called whenever there are pending requests that need finishing

eio_poll

(PECL eio >= 0.0.1dev)

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

说明

eio_poll ( ) : int

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.

参数

此函数没有参数。

返回值

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

范例

Example #1 eio_poll() example

<?phpfunction 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();}?>

以上例程的输出类似于：

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

参见

• eio_nreqs() - Returns number of requests to be processed