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From: | Archie Cobbs |
Subject: | Re: [cp-patches] RFC: misc NIO fixes |
Date: | Tue, 19 Jul 2005 09:12:43 -0500 |
User-agent: | Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.7.3) Gecko/20041129 |
Casey Marshall wrote:
Attached is a patch I'd like to get some comments on, before I check it in, especially if anyone can spot holes in my C. This patch
+ /* FIXME: I'd bet dollars for donuts the compiler optimizes this + away. How can we load memory into core??? */ + for (i = 0; i < size; i += pagesize) + { + foo += ((int *) address)[i]; + } } You can force the memory to be accessed e.g. like this: for (i = 0; ... ) *((volatile int *)address + i; Otherwise looks good after a quick scan. -Archie __________________________________________________________________________ Archie Cobbs * CTO, Awarix * http://www.awarix.com
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