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