On 16.11.2005, at 11:36, Wilfried Goesgens wrote:
On Tue, Nov 15, 2005 at 04:03:30PM +0100, Andreas Fink wrote:
As a side note:
Kannel (to be exact gwlib) on MacOS X does not seem to run into
the 2GB barrier as it does on Linux.
which is a 64-bit architecture?
MacOS X is a 32bit architecture kernel on a 64bit memory space and
with 64bit operations available since a long long time.
You can compile 64bit applications on MacOS X but all the gui
environment is 32bit and will stay like this. There's no real benefit
of having it compiled in 64bit if you use a PowerPC G5 cpu. So unless
you really need to address more than 4GB of memory, there's no point
switching to 64bits on the application side. What I'm trying to say
here is that kannel was compiled out of the box without any -arch
ppc64 flags being passed and the file size dont have those problems.
The odd on the Linux size is that the problem once was that files
actually couldnt grow over 2GB or 4GB but todays kernels and
filesystem has no problem having files growing larger than 4GB but
kannel still has problems writing after 4GB. This limitation has
never existed under MacOS X.
(Read http://developer.apple.com/documentation/Darwin/Conceptual/
64bitPorting/index.html for a few interesting facts about why 64bit
or why not)
Probably the problem (under linux) comes from some wrong typecast
assuming size_t/pos_t/off_t/pointer to be the same as int or 32bit
which is not the case.
Andreas Fink
Fink Consulting GmbH
---------------------------------------------------------------
Tel: +41-61-6666332 Fax: +41-61-6666331 Mobile: +41-79-2457333
Address: Clarastrasse 3, 4058 Basel, Switzerland
E-Mail: [EMAIL PROTECTED]
Homepage: http://www.finkconsulting.com
---------------------------------------------------------------
ICQ: 101946485 MSN: [EMAIL PROTECTED] AIM: smsrelay Skype: andreasfink
Yahoo: finkconsulting SMS: +41792457333
PGP9: 0714 DF2B A189 A760 6201 5CBD D040 3E71 4DAF 68BB
