Beej’s Guide to Unix Interprocess Communication. Version (May). Intro. You know what’s easy? fork() is easy. You can fork off new processes all. I owe my career to Beej. I was getting burnt out of web development and his guides (along with Jesse Storimer’s books) made programming fun. Beejs Guide to Unix IPCBrian “Beej Jorgensen” [email protected] This guide is written in XML using the vim editor on a Slackware.

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Has it paid off with an increase in enjoyment? Whether that works for your use case or not you’ll have to see. Here, the need for low latency dictated the design.

Making a group specific to the message sending can help.

Depending on your permissions requirements[1], and if you really only need a signaling flag, have you considered the filesystem? One writer writes and multiple readers can observe.

Beej’s Guide to Unix IPC

You’d probably have to declare this using the ‘volatile’ keyword. You can actually implement a basic pubsub both one-to-many and many-to-many mechanism using FIFOs and file system permissions in a particular fashion known as a fifodir: I have been doing systems programming for the past 7 years and have been thinking about beeej over to JS based web development for the past few months.

Ha ha ha, that’s great! Compiler could separate the update as multiple instructions and say, increment the lower part of the beejj, then the upper part. Hacker News new comments show ask jobs submit.


Its amazing how we think the grass is greener.

Beej’s Guide to Unix Interprocess Communication

I’ve often consulted this particular guide and the companion piece for networks as well. You can poll a directory that will normally be empty without much CPU load the directory inode will be cached most of the time.

Any good options on Linux, other than writing my own socket server? From a little searching it looks like it’s very capable but geared towards clusters, and is overkill for my use case. The main part of memory layout geej something like this: The solution for this kind of problem will depend heavily on what type of messages you’re trying to send.

I did this for both low latency and throughput reasons. Signals can coalesce, but you should bfej drop any. I quite enjoy programming in C, so hopefully that helps. Only the lucky few get to hack on databases, hypervisors and file systems for a living!

If we are sent to programmer purgatory, at least we’ll have each other. I’ve printed this book out and have it sitting in a binder on my bookshelf. Only some clients icp up. On OS X there’s notify 3 which is very nice. My use case is very simple: Or, as troglobit said, TIPC. Thanks for reminding me, I really need to put this into practice, so much great stuff in here.

Beej’s Guide to Unix IPC () | Hacker News

I would probably just wrap something generic using UNIX domain jpc up into a library and re-use that as needed. She’s a remarkably smart person, so I was predisposed to think “BeeJ” would know what he’s talking about and it turns out he did. And some operating systems let you watch the files for changes. Those events can be received either in a simple blocking style by letting poll 2 wake-up your process.


Actually both of you are right.

For something that requires very low latency e. Also check out his guide to C programming [0] and his guide to network programming [1] [0] http: I was getting burnt out of web development and his guides along with Jesse Storimer’s books made programming fun for me again. If drops are fine, TIPC is probably overkill.

This has an advantage of centralizing any messaging complexity and lets you manage any multi-message state easily. I haven’t tried it directly.

Some file operations can be atomics renaming a file. That’s why I like inotify in blocking mode – the call to poll is just to wake up the process I think you could just blocking-read the inotify file handle? This is a total abuse of FIFOs, but it’s proven to be much simpler than trying to manage a separate server.