Gambit-list Juillet 2005

gambit-list@iro.umontreal.ca

9 participants
12 discussions

Gambit 4.0 under MS Windows
by Mark H. Shirley 12 Jul '05

12 Jul '05

Hello, Is anyone compiling the recent Gambit 4.0 betas under MS windows? I'm interested in trying to use it (integrating it with some other software) and I don't want to reinvent the wheel wrt the make files or visual studio project files. Thank you, Mark Shirley

1 0

md5 module, bug(?) in read-subu8vector, and some questions
by Christian 11 Jul '05

11 Jul '05

Hello I've put up a new version of my chjmodule on http://scheme.mine.nu/gambit/chjmodule which, besides some other modules and changes, now contains an md5 module compatible with the chicken one. You can also look at the latter (and it's dependencies) at http://scheme.mine.nu/gambit/chjmodule/from-chjmodule-20050711/ There is one serious problem with the md5 module, though: if you feed md5:digest a port which is delivering more than 1024 bytes, it will only digest the first 1024. It seems this is a problem in read-subu8vector, which returns with length 0 after the first 1024 bytes. I'm using gambit 4.0 beta 13 (on Debian ppc). I also have some questions: - the documentation on read-subu8vector doesn't explicitely say how to reliably find out whether eof has been reached (as opposed to a timeout). What's the correct usage? - how can I (pre-)allocate datastructure *per thread*? I'm currently caching buffers to save gc overhead, but that's surely not thread safe. I could try using parameters, but then how do I find out if the current content of a parameter stems from a previous thread or not? (short of saving the current thread id in the parameter as well, which starts looking complicated) md5.scm is also missing better error handling in in ___BEGIN_CFUN_u8vector_to_pointer better: one should add argpos to the error (how?), and use "the" correct error message (___STOC_U8_ERR is clearly not right) or create a new one (hm). I'm also not sure atm whether C checks arguments like "uint8 a[16]" for the correct length. If so, it would be nice if the FFI would allow to define C types with the length - I can't see how to do that currently, given that only one string can be fed to c-define-type. Cheers Christian.

1 0

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

Gambit-list Juillet 2005