Re: [Chicken-users] set-file-position! only works with fixnums
John Cowan co...@ccil.org writes: Thomas Bushnell BSG scripsit: I think this is a mistake, but fixing it is harder than it seems. Really, this is totally non-schemey. The criterion should be an exact integer, just as it is for arrays. Instead of allowing inexact integers to be file positions, how about extending the hierarchy to handle these cases directly? Well, in order for that to work you have to persuade Felix to incorporate bignums in the core, and they can't be GMP bignums either because of the licensing -- that would make Chicken as a whole GPL, and that's not gonna happen. Making all that happen is what is harder than it seems. Uhm, GMP is LGPL, so Chicken can use whatever license it likes, even if it would start to use GMP. Regards, Rotty -- Andreas Rottmann -- http://rotty.yi.org/ ___ Chicken-users mailing list Chicken-users@nongnu.org http://lists.nongnu.org/mailman/listinfo/chicken-users
Re: [Chicken-users] confusion tracking down memory leak
Thomas Bushnell BSG t...@becket.net writes: I have a memory leak in a long-running program; I can easily provoke it. (It's quite complex; too complex to post here.) The program involves lots of FFI interfaces to Linux syscalls, and other stuff. The memory leak is *not* in Scheme; this is verified by the fact that (memory-statistics) while it's running shows bounded memory consumption. Yet the heap usage is growing without limit. There's bad malloc going on somewhere. Are there any convenient tools to try and figure out malloc usage in Chicken Scheme? Dunno specifically about Chicken Scheme (and convinient ;-), but given the fact that your leak is in C code, you might be able to make sense from Valgrind[0] output -- for C/C++ this works great, usually. [0] http://valgrind.org/ Regards, Rotty -- Andreas Rottmann -- http://rotty.yi.org/ ___ Chicken-users mailing list Chicken-users@nongnu.org http://lists.nongnu.org/mailman/listinfo/chicken-users
Re: [Chicken-users] Clojure
Peter Bex peter@xs4all.nl writes: On Thu, Jul 02, 2009 at 01:42:16PM -0700, Shawn Rutledge wrote: If you want real Scheme (rather than just lisp-like) you could try Kawa. I have not tried either one, though. Actually, I think SISC is the canonical Scheme-on-Java. Not sure why, possibly because it's better maintained or implements Scheme more completely? IIRC, SISC is a complete implementation of R5RS, while Kawa punts on continuations (it has only escape continuations) and proper tail calls[0]. [0] http://www.gnu.org/software/kawa/internals/complications.html Regards, Rotty ___ Chicken-users mailing list Chicken-users@nongnu.org http://lists.nongnu.org/mailman/listinfo/chicken-users
Re: [Chicken-users] Cryptographic eggs
Peter Bex peter@xs4all.nl writes: On Sun, Feb 08, 2009 at 08:00:55PM +, Alaric Snell-Pym wrote: VOTE! :-) I don't find S3 all that exciting, while SFTP is very nifty to have. So I vote for SFTP. +1 Cheers, Rotty ___ Chicken-users mailing list Chicken-users@nongnu.org http://lists.nongnu.org/mailman/listinfo/chicken-users
[Chicken-users] GPG support?
Hi! I'm considering switching to ugarit (from a home-made C program driving afio/tar/gpg) for my backup needs (a few Linux boxes), and would really appreciate: - GPG support (e.g. generate a random AES key/IV, and store it, encrypted via GPG, in the archive). This would do away with the need to store the AES key in plaintext in a config file. - .ugarit-ignore file support (as already on the list of planned features); this is in fact the itch I scratched with my custom-made backup tool, as I couldn't find a backup solution that offered that feature. Keep up the good work! Regards, Rotty ___ Chicken-users mailing list Chicken-users@nongnu.org http://lists.nongnu.org/mailman/listinfo/chicken-users
Re: [Chicken-users] Slow unix-sockets?
Harri Haataja [EMAIL PROTECTED] writes: On 20/09/2007, Peter Busser [EMAIL PROTECTED] wrote: Is it possible that writing to/reading from UNIX domain sockets using the unix-sockets egg is very very slow? When I connect the two programs using a normal UNIX pipe, then it takes less than 0.6 seconds for a 100k message. But it takes more than 4 seconds when I do the same over a UNIX domain socket. That is a difference of a factor 8 or so. It runs on a 1G Pentium III machine. Has anyone of you experienced this too? I wonder if you could give a small test program people could try in different environments? Another idea: doing an strace(1) can maybe shed some light on this... Regards, Rotty -- Andreas Rottmann | [EMAIL PROTECTED] | [EMAIL PROTECTED] | [EMAIL PROTECTED] http://rotty.uttx.net| GnuPG Key: http://rotty.uttx.net/gpg.asc Fingerprint | C38A 39C5 16D7 B69F 33A3 6993 22C8 27F7 35A9 92E7 v2sw7MYChw5pr5OFma7u7Lw2m5g/l7Di6e6t5BSb7en6g3/5HZa2Xs6MSr1/2p7 hackerkey.com 09 f9 11 02 9d 74 e3 5b d8 41 56 c5 63 56 88 c0 ___ Chicken-users mailing list Chicken-users@nongnu.org http://lists.nongnu.org/mailman/listinfo/chicken-users
Re: [Chicken-users] syntax-case modules questions
felix winkelmann [EMAIL PROTECTED] writes: On 5/25/07, Andreas Rottmann [EMAIL PROTECTED] wrote: Since Chicken lacks a built-in module system, I'm playing with the syntax-case egg. I want to take an extension (say SRFI-39) and make that (or parts of it) available as a syntax-case module. It seems I have to use EXPORT-TOPLEVEL instead of the export list, since this doesn't work: (module foo (append!) (require-extension srfi-1)) === Error: missing definition for export(s): (append!) The module form expects source forms to define the exported identifiers. require-extension just loads compiled code, basically. So there is no way to package extensions as syntax-case modules? This works: (module foo () (require-extension srfi-1) (export-toplevel append!)) Not really: it makes append! available under an (unqualified) name append!, not as an identifier specific to the module foo. Oh, I see. :-/ BTW, no need to CC me, I read the list. Regards, Rotty -- Andreas Rottmann | [EMAIL PROTECTED] | [EMAIL PROTECTED] | [EMAIL PROTECTED] http://rotty.uttx.net| GnuPG Key: http://rotty.uttx.net/gpg.asc Fingerprint | C38A 39C5 16D7 B69F 33A3 6993 22C8 27F7 35A9 92E7 v2sw7MYChw5pr5OFma7u7Lw2m5g/l7Di6e6t5BSb7en6g3/5HZa2Xs6MSr1/2p7 hackerkey.com Software Patents: Where do you want to stifle innovation today? ___ Chicken-users mailing list Chicken-users@nongnu.org http://lists.nongnu.org/mailman/listinfo/chicken-users
