November 2007
Intermediate to advanced
848 pages
27h 15m
English
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Changing Protection Attributes
Although the practice is rare, it is possible to change the protection attributes associated with a page or pages of committed physical storage. For example, say you’ve developed code to manage a linked list, the nodes of which you are keeping in a reserved region. You could design the functions that process the linked list so that they change the protection attributes of the committed storage to PAGE_READWRITE at the start of each function and then back to PAGE_NOACCESS just before each function terminates.
By doing this, you protect your linked-list data from other bugs hiding in your program. If any other code in your process has a stray pointer that attempts to access your linked-list data, an access violation ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
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.