September 2002
Intermediate to advanced
1272 pages
31h 12m
English
Content preview from Cocoa® Programming
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Locking
When writing multithreaded programs, it is often necessary to find ways to ensure that certain resources or code sections can only be used by one thread at any given time. A special term, critical section, is used to refer to segments of code that require this special protection. For example, if two threads both attempt to do Application Kit drawing at the same time, the drawing commands sent to Quartz will be coming from both threads and could interleaved with each other. The resulting drawing will be an utter mess.
The use of Distributed Objects to isolate threads can provide a partial answer to this need, but it is not a complete solution. DO causes requests sent to a given thread to be serialized because the requests will be queued ...
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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.
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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.