php man page for eio_poll

EIO_POLL(3)								 1							       EIO_POLL(3)

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

SYNOPSIS
       int eio_poll (void  )

DESCRIPTION
       eio_poll(3) can be used to implement special event loop. For this eio_nreqs(3) 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(3) 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.
PHP Documentation Group 													       EIO_POLL(3)