RE: Updated Windows mmap() wrapper

The critical question on the windows side of the equation is going to be
whether you can get optimal performance. Presumably, you could look at the
source of the MinGW support and see what they do as a reference.

You are correct that documentation on this is a bit hard to come be. One of
the problem on windows is that you have a lot of options and a lot of
variation of the operating system in the field. It is certain that the
situation on Win95 is going to be quite different the on Server 2003. How do
intend to deal with sussing out all the real issues?

-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Bob
Friesenhahn
Sent: Sunday, January 18, 2004 9:24 PM
To: GraphicsMagick Core
Subject: [GM-core] Updated Windows mmap() wrapper

I have re-written the Windows mmap() wrapper function so that it
supports more features. 64-bit file offsets are now supported,
although GraphicsMagick doesn't make use of this yet.  One feature
that I have not tried yet is using it to allocate anonymous memory
from the system paging area (similar to malloc).  From the
description, it seems like this should work similar to Unix.  The
Windows documentation is very poor so it is not even clear if new
pages are zero-filled.

Let me know if you observe anything behaving oddly as a result of my
updates.

As of this evening, the MinGW build works properly again and the test
suite is passing under MinGW.

Bob
======================================
Bob Friesenhahn
[email protected]
http://www.simplesystems.org/users/bfriesen



-------------------------------------------------------
The SF.Net email is sponsored by EclipseCon 2004
Premiere Conference on Open Tools Development and Integration
See the breadth of Eclipse activity. February 3-5 in Anaheim, CA.
http://www.eclipsecon.org/osdn
_______________________________________________
Graphicsmagick-core mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/graphicsmagick-core


-------------------------------------------------------
The SF.Net email is sponsored by EclipseCon 2004
Premiere Conference on Open Tools Development and Integration
See the breadth of Eclipse activity. February 3-5 in Anaheim, CA.
http://www.eclipsecon.org/osdn