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Well, it's windows. (I know, "what kind of answer
is that?")
On a linux system that I maintain we have several
hundred connections per second and there isn't any problem. Of course, that's
linux/apache.
The overhead you will be fighting won't be mfc or
isapi dlls. It will be the windows tcp stack, the windows kernel, and
IIS.
I think you'll be OK, the biggest thing you have
going in your favor is you are writing C/C++ code which will compile to be
pretty fast.
There are some write mechanisms that you may be
able to take advantage of if you are sending back files. You can basically end
your handling of a connection by calling a "SendFile" type of function (forgot
the name, it's been about 4-5 years) that will transmit the specified file using
the fastest IO mechanism in windows.
Whatever you write, write a "shim" class that
your mfc isapi calls into and that whenever your code needs any information
about the connection, the user, the server, etc, it calls that same shim class
to get it. Also, any data storage format that you use, make it generic, like
flat files.
If you run into a problem and IIS isn't fast
enough we can take that shim and re-write it for receiving calls from apache and
getting information from apache about the server, user, connection, etc. and all
the rest of your code can stay the same. Then we just compile it as an apache
module and you can uninstall that virus from your dual p4 and put linux/apache
on there and run with that.
I've wrote a couple of apache modules since doing
the isapi stuff and will be happy to help you out in the area.
----- Original Message -----
Sent: Friday, November 11, 2005 9:22
PM
Subject: Re: [msvc] ISAPI
programming
Thanks for your reply, cheers.
Can it handle hundreds of connections at a time?
We are planning to use P4 dual precessors, 1GB ram, XP or 2000
server
Neil
----- Original Message -----
Sent: Saturday, November 12, 2005 1:10
AM
Subject: Re: [msvc] ISAPI
programming
I used mfc without a problem.
everything was fine. I used the mfc classes
to do the hooks and filters and then called into my own code to do my own
stuff.
----- Original Message -----
Sent: Friday, November 11, 2005 4:36
PM
Subject: Re: [msvc] ISAPI
programming
Hi,
did you use MFC? or do you advice to stay
away from using it?
Neil
----- Original Message -----
Sent: Friday, November 11, 2005
10:15 PM
Subject: Re: [msvc] ISAPI
programming
I wrote quite a bit of isapi back 6 years
ago and never ran into any significant problems. it always did exactly
what I wanted and needed it to do.
----- Original Message -----
Sent: Friday, November 11, 2005
2:50 AM
Subject: [msvc] ISAPI
programming
Hi,
I am about to start
writing an ISAPI project. I am going to be using MFC , and the
book I am using mentions that there are some problems with MFC. The
book is quite old, and dont know if the problems have been solved in
XP and 2000.
I am using VC++ 6.0, can anyone give me
any good tips and problems they have come across ?
Many thanks
Neil
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