Re: problem/bug/limitation in uw-client-library

On Thu, 15 Oct 2009, Volker Schwicking wrote:
> Obviously someone named Tom from Alcatel Lucent created a patch that
> makes uw-imap use poll() instead of select() about 2 years ago.
> Mark, did you ever receive that patch mentioned? Do you still have it?

Changing select() to poll() in the UW IMAP distribution was a non-starter. 
There were -- and still are -- sites that use UW IMAP on platforms that do 
not have a poll() call.

Now, kewl d00dz may not care about those platforms.  But I did.  I had to.

It staggers me that you would even think of applying a patch of this 
complexity rather than the ONE LINE change to a system include file.

If, as you imply, you don't know much about the C programming language and 
thus have no way to audit the patch, it is even more staggering.

Apparently, it does not suffice to tell people like you what you need to 
know in order to work out the solution.  Instead, you have to have the 
solution spelled out for you in step-by-step detail.  Very well.  Here is 
the solution:

[1] Find the following two system include files:
 	/usr/include/bits/typesizes.h
 	/usr/include/bits/posix_types.h

[2] In each of those files, locate the line that reads:
 	#define	__FD_SETSIZE	1024

[3] Change that line in each file so that it reads:
 	#define	__FD_SETSIZE	8192

[4] File a report with the developers of glibc that this change needs to 
be made.

[5] Rebuild the software.

[6] Congratulate yourself for being a Meisterhacker.

[7] Drink beer.

-- Mark --

http://panda.com/mrc
Democracy is two wolves and a sheep deciding what to eat for lunch.
Liberty is a well-armed sheep contesting the vote.
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