October 2003
Intermediate to advanced
1072 pages
24h 21m
English
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Heaps
A heap is a memory region consisting of one or more pages of reserved space that can be suballocated into smaller pieces by the heap manager. Heaps are most useful for allocating large numbers of similarly sized, relatively small objects and structures. You should not use heaps for blocks of 1MB or more; use VirtualAlloc and company for large allocations such as this.
On the plus side, heaps allow you to ignore the system's allocation granularity and page size boundaries. On the negative side, heaps are a bit slower to access and don't provide the same level of control that the virtual memory APIs do. For example, you can't reserve a heap region without also committing it—VirtualAlloc is the only Win32 allocation function that separates ...
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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.