Re: How to set IP address for socket?
Hi Rowan Alex, Yes, that ipv6-mapped address made the difference! My tiny PicoLips server is now running at http://demo-project.jkleiser.c9.io/. It probably won't run for a very long time, but I'm very satisfied. ;-) (I obviously have to fix something re. the default file, in doc/, but that's something else.) /Jon On Fri, May 17, 2013 at 02:05:10AM +0300, Rowan Thorpe wrote: you to do, but instead of: : MyIpAddr asciz 127.6.26.129 you put the ipv6-mapped address for it: : MyIpAddr asciz :::127.6.26.129 Thanks Rowan! This sounds like a very reasonable hint! ?? Alex -- UNSUBSCRIBE: mailto:picolisp@software-lab.de?subject=Unsubscribe
Re: How to set IP address for socket?
Hi Jon, Yes, that ipv6-mapped address made the difference! My tiny PicoLips server is now running at http://demo-project.jkleiser.c9.io/. It probably won't run for a very long time, but I'm very satisfied. ;-) Work perfectly! Congratulations! :) ♪♫ Alex -- UNSUBSCRIBE: mailto:picolisp@software-lab.de?subject=Unsubscribe
Re: How to set IP address for socket?
On Sun, May 19, 2013 at 06:27:21PM +0200, Alexander Burger wrote: Work perfectly! Congratulations! :) However, the time is strange. It says It's now 12:44:27 (around here) Is the server not in Norway? I'd expect 19:44:27 then. ♪♫ Alex -- UNSUBSCRIBE: mailto:picolisp@software-lab.de?subject=Unsubscribe
Re: How to set IP address for socket?
On Sun, May 19, 2013 at 06:45:33PM +0200, Alexander Burger wrote: On Sun, May 19, 2013 at 06:27:21PM +0200, Alexander Burger wrote: Work perfectly! Congratulations! :) However, the time is strange. It says It's now 12:44:27 (around here) Is the server not in Norway? I'd expect 19:44:27 then. Taking a closer look, it seems in Canada, right? BTW, if I'd want to make a form with a time-field, which updates its value whenever you press a button: (allowed () !home setTime @lib.css ) (load @lib/http.l @lib/xhtml.l @lib/form.l) (de setTime (H M S) (set (: time) (time H M S)) ) (de home () (app) (action (html 0 Local Time @lib.css NIL (form NIL (gui 'time '(+Lock +TimeField) 10 Local Time) () (gui '(+OnClick +Button) var t = new Date(); return lisp(this.form, 'setTime', t.getHours(), t.getMinutes(), t.getSeconds()) Now! ) ) ) ) ) (de go () (server 8080 !home) ) Started as pil file.l -go + # Debug pil file.l -go -wait # Production ♪♫ Alex -- UNSUBSCRIBE: mailto:picolisp@software-lab.de?subject=Unsubscribe
Re: How to set IP address for socket?
Hi Alex, No, it's not in Norway. Could be in Canada ... It's in the cloud somewhere, Cloud9. ;-) /Jon On Sun, May 19, 2013 at 06:45:33PM +0200, Alexander Burger wrote: On Sun, May 19, 2013 at 06:27:21PM +0200, Alexander Burger wrote: Work perfectly! Congratulations! :) However, the time is strange. It says It's now 12:44:27 (around here) Is the server not in Norway? I'd expect 19:44:27 then. Taking a closer look, it seems in Canada, right? BTW, if I'd want to make a form with a time-field, which updates its value whenever you press a button: (allowed () !home setTime @lib.css ) (load @lib/http.l @lib/xhtml.l @lib/form.l) (de setTime (H M S) (set (: time) (time H M S)) ) (de home () (app) (action (html 0 Local Time @lib.css NIL (form NIL (gui 'time '(+Lock +TimeField) 10 Local Time) () (gui '(+OnClick +Button) var t = new Date(); return lisp(this.form, 'setTime', t.getHours(), t.getMinutes(), t.getSeconds()) Now! ) ) ) ) ) (de go () (server 8080 !home) ) Started as pil file.l -go + # Debug pil file.l -go -wait # Production ?? Alex -- UNSUBSCRIBE: mailto:picolisp@software-lab.de?subject=Unsubscribe
Re: How to set IP address for socket?
Thanks! The 'make' went fine now. However, when I try to run my web app now, I get IP bind error: Address already in use. ;-) I think I may have to bother C9 Support again. Ah, but perhaps this is (partially) good news, because it seems to have taken the address! :) Just throwing in an observation in case it hasn't already occurred to you - the Address already in use error might well not be a picolisp or C9 problem at all, but that you are reconnecting to the socket without having set the SO_REUSEADDR option (or equivalent). Without it you can't reconnect to an already connected socket, e.g. for about 90 seconds on Linux, or similar duration on other platforms (must wait for OS to release socket based on its own view of things). If that is totally unhelpful or irrelevant then sorry for the line-noise ;-) Rowan Thorpe -- UNSUBSCRIBE: mailto:picolisp@software-lab.de?subject=Unsubscribe
Re: How to set IP address for socket?
Hi Rowan,
Just throwing in an observation in case it hasn't already occurred
to you - the Address already in use error might well not be a picolisp
or C9 problem at all, but that you are reconnecting to the socket
without having set the SO_REUSEADDR option (or equivalent). Without it
you can't reconnect to an already connected socket, e.g. for about 90
seconds on Linux, or similar duration on other platforms (must wait
That's right. But in this case the function in question ('port') does
indeed set this option.
However, it still might be the case that some other service is already
listening at that port, perhaps even some not-yet-terminated instance of
your application.
You can find out the culprit with
$ lsof -i :8080
COMMANDPID USER FD TYPE DEVICE SIZE/OFF NODE NAME
picolisp 20278 app 16u IPv6 2098603 0t0 TCP *:http-alt (LISTEN)
♪♫ Alex
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Re: How to set IP address for socket?
Hi Alex Rowan,
As far as I can see, there is no other process listening on 8080 at the
moment when I get this Address already in use. However, I've just
managed to put together a tiny Ruby server (found something on
stackoverflow) that works. It uses server = TCPServer.open(host, port)
where 'host' is 127.6.26.129 and 'port' is 8080. Right now it's
available here http://demo-project.jkleiser.c9.io/, but not for very
long ...
When I do the lsof -i :8080 now, I get this:
COMMAND PID USER FD TYPE DEVICE SIZE/OFF
NODE NAME
ruby16690 517cfc7750044649680001965u IPv4 21717622 0t0
TCP 127.6.26.129:webcache (LISTEN)
/Jon
On 16-05-13 15:34 , Alexander Burger wrote:
Hi Rowan,
Just throwing in an observation in case it hasn't already occurred
to you - the Address already in use error might well not be a picolisp
or C9 problem at all, but that you are reconnecting to the socket
without having set the SO_REUSEADDR option (or equivalent). Without it
you can't reconnect to an already connected socket, e.g. for about 90
seconds on Linux, or similar duration on other platforms (must wait
That's right. But in this case the function in question ('port') does
indeed set this option.
However, it still might be the case that some other service is already
listening at that port, perhaps even some not-yet-terminated instance of
your application.
You can find out the culprit with
$ lsof -i :8080
COMMANDPID USER FD TYPE DEVICE SIZE/OFF NODE NAME
picolisp 20278 app 16u IPv6 2098603 0t0 TCP *:http-alt (LISTEN)
♪♫ Alex
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Re: How to set IP address for socket?
Hi Jon, stackoverflow) that works. It uses server = TCPServer.open(host, port) where 'host' is 127.6.26.129 and 'port' is 8080. Right now I see. So my proposal of calling inet_pton() was not correct :( I have no idea at the moment. Somebody (me?) must dig into TCP networking (again). Haven't touched that for a while. Anybody who knows a direct solution? ♪♫ Alex -- UNSUBSCRIBE: mailto:picolisp@software-lab.de?subject=Unsubscribe
Re: How to set IP address for socket?
Hi Alex, I'll be off-line for a couple of days. Have a nice weekend! /Jon On 16-05-13 16:38 , Alexander Burger wrote: Hi Jon, stackoverflow) that works. It uses server = TCPServer.open(host, port) where 'host' is 127.6.26.129 and 'port' is 8080. Right now I see. So my proposal of calling inet_pton() was not correct :( I have no idea at the moment. Somebody (me?) must dig into TCP networking (again). Haven't touched that for a while. Anybody who knows a direct solution? ♪♫ Alex -- UNSUBSCRIBE: mailto:picolisp@software-lab.de?subject=Unsubscribe
Re: How to set IP address for socket?
Alexander Burger wrote: I see. So my proposal of calling inet_pton() was not correct :( I have no idea at the moment. Somebody (me?) must dig into TCP networking (again). Haven't touched that for a while. Jon, I think I might have found an explanation for the already bound error, and if it is this, then the error is not very appropriately worded (it might actually be a propagated inet_pton syntax error). On the inet_pton manpage I found this: BUGS: AF_INET6 does not recognize IPv4 addresses. An explicit IPv4-mapped IPv6 address must be supplied in src instead. Hopefully someone will get around to fixing that one day (I would have thought it would be a trivial fix...?!). The ipv6 address space is a (128bit) superset of the (32bit) ipv4 space anyway, so I don't see a reason *against* handling that syntax too... What happens if you do the same steps in the last version Alex told you to do, but instead of: : MyIpAddr asciz 127.6.26.129 you put the ipv6-mapped address for it: : MyIpAddr asciz :::127.6.26.129 ..? -- Rowan Thorpe -- UNSUBSCRIBE: mailto:picolisp@software-lab.de?subject=Unsubscribe
Re: How to set IP address for socket?
On Fri, May 17, 2013 at 02:05:10AM +0300, Rowan Thorpe wrote: you to do, but instead of: : MyIpAddr asciz 127.6.26.129 you put the ipv6-mapped address for it: : MyIpAddr asciz :::127.6.26.129 Thanks Rowan! This sounds like a very reasonable hint! ♪♫ Alex -- UNSUBSCRIBE: mailto:picolisp@software-lab.de?subject=Unsubscribe
Re: How to set IP address for socket?
Hi Alex, On 14-05-13 07:30 , Alexander Burger wrote: Hi Jon, After doing #1, lines 4-7 look like this: # (port ['T] 'cnt|(cnt . cnt) ['var]) - cnt (code 'doPort 2) : MyIpAddr asciz 127.6.26.129 # may work on Cloud9 push X Sorry, no, this is the wrong place. You've put the constant string right into the 'doPort' function definition. That's why there is an Illegal instruction because the string is not executable code. Better try this: : MyIpAddr asciz 127.6.26.129 # (port ['T] 'cnt|(cnt . cnt) ['var]) - cnt (code 'doPort 2) push X push Y ... ♪♫ Alex No, sorry, the 'make' fails: ../picoLisp/src64 (master) $ make x86-64.linux.base.o: In function `.3314': (.text+0x1c29c): undefined reference to `MyIpAddr' collect2: ld returned 1 exit status make: *** [../bin/picolisp] Error 1 /Jon -- UNSUBSCRIBE: mailto:picolisp@software-lab.de?subject=Unsubscribe
Re: How to set IP address for socket?
Hi Jon, (.text+0x1c29c): undefined reference to `MyIpAddr' Oops, sorry. It seems I didn't put a constant string this way since a long time ;-) Probably this string needs to be put into the 'data' section. You could call (data ...), but the easiest is if you insert it into src64/glob.l where most of the other data reside. I would suggest you put it at the end of src64/glob.l, after the System messages. ... : UndefErr asciz Undefined : DlErr asciz [DLL] %s : MyIpAddr asciz 127.6.26.129 ♪♫ Alex -- UNSUBSCRIBE: mailto:picolisp@software-lab.de?subject=Unsubscribe
Re: How to set IP address for socket?
Hi Alex, Thanks! The 'make' went fine now. However, when I try to run my web app now, I get IP bind error: Address already in use. ;-) I think I may have to bother C9 Support again. /Jon On 14-05-13 15:58 , Alexander Burger wrote: Hi Jon, (.text+0x1c29c): undefined reference to `MyIpAddr' Oops, sorry. It seems I didn't put a constant string this way since a long time ;-) Probably this string needs to be put into the 'data' section. You could call (data ...), but the easiest is if you insert it into src64/glob.l where most of the other data reside. I would suggest you put it at the end of src64/glob.l, after the System messages. ... : UndefErr asciz Undefined : DlErr asciz [DLL] %s : MyIpAddr asciz 127.6.26.129 ♪♫ Alex -- UNSUBSCRIBE: mailto:picolisp@software-lab.de?subject=Unsubscribe
Re: How to set IP address for socket?
Hi Jon, Thanks! The 'make' went fine now. However, when I try to run my web app now, I get IP bind error: Address already in use. ;-) I think I may have to bother C9 Support again. Ah, but perhaps this is (partially) good news, because it seems to have taken the address! :) I'm not sure at all if the approach calling inet_pton() is correct. ♪♫ Alex -- UNSUBSCRIBE: mailto:picolisp@software-lab.de?subject=Unsubscribe
Re: How to set IP address for socket?
hey jon, i haven't had a look at c9 for over a year now, so i checked on it today and i see they give a full shell in some kind of chroot on their own servers, then u can deploy to heroku too and finally they can even collaborate thru your own servers via ssh. just out of curiosity, how do u run picolisp on c9? -- tom -- UNSUBSCRIBE: mailto:picolisp@software-lab.de?subject=Unsubscribe
Re: How to set IP address for socket?
Hi Herman, On 13-05-13 14:29 , Tamas Herman wrote: hey jon, i haven't had a look at c9 for over a year now, so i checked on it today and i see they give a full shell in some kind of chroot on their own servers, then u can deploy to heroku too and finally they can even collaborate thru your own servers via ssh. just out of curiosity, how do u run picolisp on c9? This far, I've only done, in the C9 Terminal, exactly the same as I do on my Mac, except on C9 I use 64-bit PicoLisp. To be able to access my toy web app from the outside, however, I'll probably have to set the IP to which the socket should bind, to 127.6.26.129. That's what they do in their node.js example ... http.createServer(...).listen(process.env.PORT, process.env.IP); // the IP env. variable is (normally) 127.6.26.129. I'll see if I can manage something similar in PicoLisp ... ;-) /Jon -- UNSUBSCRIBE: mailto:picolisp@software-lab.de?subject=Unsubscribe
Re: How to set IP address for socket?
Hi Jon, Cloud9 IDE Support, I have to set the IP to which the socket (port 8080) should bind, to 127.6.26.129. How do I set this IP in PicoLisp? ... At the moment, modifying src64/net.l sounds like the easiest way to get a web app running on Cloud9. However, I'm not familiar with the (assembly) language used in that file. Do you have any idea of how a tweek to that file would look? Hmm, just an _idea_. I'm absolutely unsure whether I'm on the right track with that. No guarantee! :) My guess is: 1. Put the line : MyIpAddr asciz 127.6.26.129 somehere into src64/net.l, e.g. before or after 'doPort'. 2. Change line 36 of src64/net.l mset (Addr SIN6_ADDR) 16 # :: (16 null-bytes) to cc inet_pton(AF_INET6 MyIpAddr (Addr SIN6_ADDR)) Does this work? ♪♫ Alex -- UNSUBSCRIBE: mailto:picolisp@software-lab.de?subject=Unsubscribe
Re: How to set IP address for socket?
Hi Alex, Hi Jon, Cloud9 IDE Support, I have to set the IP to which the socket (port 8080) should bind, to 127.6.26.129. How do I set this IP in PicoLisp? ... At the moment, modifying src64/net.l sounds like the easiest way to get a web app running on Cloud9. However, I'm not familiar with the (assembly) language used in that file. Do you have any idea of how a tweek to that file would look? Hmm, just an _idea_. I'm absolutely unsure whether I'm on the right track with that. No guarantee! :) My guess is: 1. Put the line : MyIpAddr asciz 127.6.26.129 somehere into src64/net.l, e.g. before or after 'doPort'. 2. Change line 36 of src64/net.l mset (Addr SIN6_ADDR) 16 # :: (16 null-bytes) to cc inet_pton(AF_INET6 MyIpAddr (Addr SIN6_ADDR)) Does this work? ?? Alex After doing #1, lines 4-7 look like this: # (port ['T] 'cnt|(cnt . cnt) ['var]) - cnt (code 'doPort 2) : MyIpAddr asciz 127.6.26.129 # may work on Cloud9 push X .. and then I did change #2. Then I went into src63 and did a make clean and then a make, and then cd ... However, when I tried to start my web.l, I got this: Starting server using port 8080 Illegal instruction .. so it's not exactly working yet. ;-) /Jon -- UNSUBSCRIBE: mailto:picolisp@software-lab.de?subject=Unsubscribe
Re: How to set IP address for socket?
Hi Jon, After doing #1, lines 4-7 look like this: # (port ['T] 'cnt|(cnt . cnt) ['var]) - cnt (code 'doPort 2) : MyIpAddr asciz 127.6.26.129 # may work on Cloud9 push X Sorry, no, this is the wrong place. You've put the constant string right into the 'doPort' function definition. That's why there is an Illegal instruction because the string is not executable code. Better try this: : MyIpAddr asciz 127.6.26.129 # (port ['T] 'cnt|(cnt . cnt) ['var]) - cnt (code 'doPort 2) push X push Y ... ♪♫ Alex -- UNSUBSCRIBE: mailto:picolisp@software-lab.de?subject=Unsubscribe
