October 2002
Intermediate to advanced
430 pages
14h 57m
English
Content preview from Embedded Systems Design, 2nd Edition
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Real-time operating systems 253
behind it are to provide vendor independence, protection from
technical obsolescence, the availability of standard off-the-shelf
applications, the preservation of software investment and to pro-
vide connectivity between computers.
It is based on UNIX but has added a set of real-time
extensions as defined in the POSIX 1003.4 document. These cover
a more sophisticated semaphore system which uses the open() call
to create them. This call is more normally associated with opening
a file. The facilities include persistent semaphores which retain
their binary state after their last use, and the ability to force a task
to wait ...
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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.