Martin Sustrik, one of the co-creators of ZeroMQ, has been working on a new messaging library called Nanomsg to surpass the lightweight power of ZeroMQ. You could almost think about Nanomsg as ZeroMQ–the sequel.
nanomsg library is a high-performance implementation of several "scalability protocols". Scalability protocol's job is to define how multiple applications communicate to form a single distributed application. Implementation of following scalability protocols is available at the moment:
• PAIR - simple one-to-one communication
• BUS - simple many-to-many communication
• REQREP - allows to build clusters of stateless services to process user requests
• PUBSUB - distributes messages to large sets of interested subscribers
• FANIN - aggregates messages from multiple sources
• FANOUT - load balances messages among many destinations
• SURVEY - allows to query state of multiple applications in a single go
This week, Sustrik introduced the very first public release of Nanomsg – alpha version 0.1.
Nanomsg supports INPROC, IPC and TCP protocols. It is also released under the more permissive MIT-license, which is a big part of why Sustrik wanted to break off from the ZeroMQ project.
Check out his announcement on freelists.org, which outlines the new features compared to ZeroMQ.