Re: sending data over udp
Thank you for the answer and the suggestions. I will look into them furthe=
r.
- dan
On Sat, Aug 14, 2010 at 11:28 AM, Alexander Burger a...@software-lab.de wr=
ote:
Hi Dan,
You mean, for example, by sending a list of numbers representing bytes=
?
e.g.
=3DA0 (udp Host Port (1 2 3 4 5 6 7))
Yes, but without the extra bytes for the list data structure.
Unfortunately, the existing 'udp' function cannot do that. It can handle
only Lisp data.
You could make your own custom function, e.g. with inline-C using 'gcc'
=A0 (load @lib/gcc.l)
=A0 (gcc net NIL 'rawUdp)
=A0 any rawUdp(any ex) {
=A0 =A0 =A0...
=A0 =A0 =A0byte buf[UDPMAX];
=A0 =A0 =A0...
=A0 =A0 =A0fill 'buf' with bytes
=A0 =A0 =A0sd =3D socket(AF_INET, SOCK_DGRAM, 0)
=A0 =A0 =A0sendto(sd, buf, ...)
=A0 =A0 =A0close(sd);
=A0 }
=A0 /**/
but this is rather tedious, manipulating the buffer and byte data.
I don't know any really easy way at the moment. How about writing raw
bytes to a pipe or temp file, and using an external tool like 'nc' to
actually transfer the data?
Cheers,
- Alex
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sending data over udp
A few weeks ago I asked about sending data over TCP. Well, my program must now use UDP and it appears that UDP simply sends PicoLisp data structures. Prior to this, I was simply creating a list of byte-sized numbers and using wr to send them via TCP. Is there any way to do something similar using UDP? By the way, this question is somewhat time sensitive. Thank you. - dan -- UNSUBSCRIBE: mailto:picol...@software-lab.de?subject=unsubscribe
Re: PL vs. BSD License
Hello. Does the GPL affect code that I write that runs on PicoLisp, or just changes to the PicoLisp interpreter? If only changes to the interpreter are affected, than GPL is the way to go as far as I am concerned. However, I should add that many large companies (at least in the US) are irrationally terrified of anything GPL. It is very annoying. - dan On Mon, Aug 2, 2010 at 3:50 AM, Mansur Mamkin mmam...@mail.ru wrote: Hi all, Hi all, as this discussion popped up recently and in the past, and will surely pop up in the future: What do you think if PicoLisp were released under the BSD license instead of GPL? Why not? It would be great to see PicoLisp under BDS license Oops, sorry, I mean BSD -- UNSUBSCRIBE: mailto:picol...@software-lab.de?subject=unsubscribe -- UNSUBSCRIBE: mailto:picol...@software-lab.de?subject=unsubscribe
Fwd: PicoLisp Browser GUI example error
Didn't see the mailing list until after I sent this email. Any ideas? -- Forwarded message -- From: Daniel Elliott danelliotts...@gmail.com Date: Tue, Jul 27, 2010 at 8:45 AM Subject: PicoLisp Browser GUI example error To: a...@software-lab.de, josef.ba...@2bartl.de Mr. Burger and Mr. Bartl, Thank you for your work on PicoLisp. =A0It is absolutely perfect for an important portion of a agricultural system prototype my startup is building. =A0We want to use PicoLisp on a device running OpenWRT. =A0We have already successfully built and installed PicoLisp on the device with the help of Jeronimo Pellegrini's package. However, I am having difficulty with the Browser GUI example. =A0When I run picolisp this is what I get: r...@openwrt:/usr/share/picolisp# pico dbg.l lib/http.l lib/xhtml.l lib/form.l -'server 8080 ~/helloworldhttp.l' tput: can't exec tput: can't exec [/usr/bin/../share/picolisp/lib/debug.l:147] !? (in l...@lib/tags (while (read) (let Sym @ (if (get Sym '*Dbg) (set @ (read)) (put Sym '*Dbg (cons (read))) /usr/bin/../share/picolisp/lib/tags open: No such file or directory Is it looking for a tags.l file in the lib? =A0If so, it is not present. Thanks, again, for your work on this language. =A0We are hopeful we will be able to use it for other parts of our system (perhaps in place of common Lisp) but are starting with running it on an embedded device. By the way, is there a better place to post this question? Thank you. - dan elliott -- UNSUBSCRIBE: mailto:picol...@software-lab.de?subject=unsubscribe
Re: PicoLisp Browser GUI example error
Thanks! That got me over the hump. I put a tags file in lib. It turns out the ht library was also missing from the package. I will let Jeronimo Pellegrini know. Once I added those two things, I was able to run the first couple lines of the example. - dan On Tue, Jul 27, 2010 at 9:25 AM, Alexander Burger a...@software-lab.de wro= te: Hi Dan, Didn't see the mailing list until after I sent this email. =A0Any ideas? No problem. In general it is better to ask such questions in the mailing list, though, as other people might also benefit then. Next time then ;) Thank you for your work on PicoLisp. =A0It is absolutely perfect for an important portion of a agricultural system prototype my startup is Hehe, that's interesting :-) Josef Bartl an me initially also worked on agricultural systems (warehoses) when we first met (almost 20 years ago). building. =A0We want to use PicoLisp on a device running OpenWRT. =A0We have already successfully built and installed PicoLisp on the device with the help of Jeronimo Pellegrini's package. OK However, I am having difficulty with the Browser GUI example. =A0When I run picolisp this is what I get: r...@openwrt:/usr/share/picolisp# pico dbg.l lib/http.l lib/xhtml.l lib/form.l -'server 8080 ~/helloworldhttp.l' tput: can't exec tput: can't exec I see. The 'tput' command seems not available on OpenWRT. This makes sense, as this is not very useful in such an environment. I would suggest to remove the whole expression (when (sys TERM) ..) from lib/dbg.l. It is not important, it only sets the '*Tsm' console mode (the transient symbol markup, which underlines transient symbols (strings)). [/usr/bin/../share/picolisp/lib/debug.l:147] !? (in l...@lib/tags (while (read) (let Sym @ (if (get Sym '*Dbg) (set @ (read)) (put Sym '*Dbg (cons (read))) /usr/bin/../share/picolisp/lib/tags open: No such file or directory Is it looking for a tags.l file in the lib? =A0If so, it is not present. Yeah, it seems it didn't get included into the distribution. It is rather large, and only needed for source access during debugging. I would suggest to create an empty file lib/tags. Please let me know how you get along, and don't hesitate to ask! :-) Cheers, - Alex -- UNSUBSCRIBE: mailto:picol...@software-lab.de?subject=unsubscribe
threading in PicoLisp
Hello again, I have my HTTP-based GUI but my process is going to do a bunch of stuff and it would be nice if the web server were still responsive. The GUI will only display information about the status of the program and will be able to display information from the DB. Would this be best handled by threading or through sharing a PicoLisp database? How is threading handled in PicoLisp? - dan elliott -- UNSUBSCRIBE: mailto:picol...@software-lab.de?subject=unsubscribe
