i am a newbie with kamailio dev, with my circumstance, I need some approaches for notify inter-process what happend. 

for example, my module need invoke thrift interface for some operation use tcp long connection.  when tcp disconnected, I don't want connect thrift server direct in tcp receiver process, because connect operation will block process. I have more than one thrift serveres, my module can use other connection when one of them going down. but I need some approaches that told tcp receive process to reconnect thrift server in exactly time. maybe I can use slow-timer process to attempt connect thrift server. how to notify my module ?

thanks for any advises.