Imap IDLE in Zend Framework

I am searching for the IMAP IDLE function in the Zend Framework. I would either like to know whether it is integrated or if it could be done. I have read 开发者_运维知识库that the IlohaMail library seems to have implemented the function - at least in a modified version used in roundcube.

Zend Framework supports issuing the "NOOP" - No operation - command to the IMAP servers to renew the connection.

According to http://www.isode.com/whitepapers/imap-idle.html, this resembles the IMAP IDLE process.