Memory guard, how to do it?

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1 total messages Started by tinyabs Tue, 12 Dec 2006 01:07

#2859

Author: tinyabs
Date: Tue, 12 Dec 2006 01:07

16 lines
1474 bytes

The scenario is like this:

I have allocated memory buffer and like to mark none read/write/execute at 
the beginning and end of the buffer.

0x00600000-4K size [None-read/write/execute]
0x00601000-256K size [valid memory buffer]
0x00641000-4K size [none read/write/execute]

I'm doing this because I have a graphics engine that uses assembly language 
to read and write to the buffer. I want an access violation exception when I 
access memory outside of buffer.

My idea is to use VirtualAlloc to allocate the memory and then use 
VirtualProtect to change the attributes. Is this a viable way to do it or is 
there a shortcut?

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