August 2011
Intermediate to advanced
552 pages
23h 48m
English
Content preview from Advanced Mac OS X Programming: The Big Nerd Ranch GuideBecome 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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CFHost
Virtually all network-orientated applications require host name lookup, such as with gethostbyname2() described in Chapter 14: Network Programming With Sockets. Unfortunately, the standard Unix domain name lookup functions are blocking, which causes the same problems with GUI unresponsiveness and application termination as discussed earlier.
The Core Services framework provides CFHost which does runloop-based host name lookup. You can use CFHost to look up addresses (mapping hostnames to an IP address) or names (mapping an IP address to a set of hostnames). You look up addresses by creating a CFHost and giving it the hostname you are interested in. Then set the “client,” which is a callback function and a context block like the socket ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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.