March 2013
Intermediate to advanced
516 pages
15h 11m
English
Content preview from ZeroMQBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Chapter 2. Sockets and Patterns
In Chapter 1 we took ØMQ for a drive, with some basic examples of the main ØMQ patterns: request-reply, publish-subscribe, and pipeline. In this chapter, we’re going to get our hands dirty and start to learn how to use these tools in real programs.
We’ll cover:
How to create and work with ØMQ sockets
How to send and receive messages on sockets
How to build your apps around ØMQ’s asynchronous I/O model
How to handle multiple sockets in one thread
How to handle fatal and nonfatal errors properly
How to handle interrupt signals like Ctrl-C
How to shut down a ØMQ application cleanly
How to check a ØMQ application for memory leaks
How to send and receive multipart messages
How to forward messages across networks
How to build a simple message queuing broker
How to write multithreaded applications with ØMQ
How to use ØMQ to signal between threads
How to use ØMQ to coordinate a network of nodes
How to create and use message envelopes for publish-subscribe
How to use the high-water mark (HWM) to protect against memory overflows
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.