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+--- Day changed Tue Aug 27 2013
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+19:11 < jtanx> lol
+19:11 < jtanx> the camera that we were using for the soldering lab inserted a bunch of wavy lines/static into the video
+19:12 < sam_moore> It's an effect
+19:14 < jtanx> nah
+19:14 < jtanx> the camera was actually broken
+19:15 < sam_moore> (I figured that)
+19:15 < sam_moore> You could pretend it's supposed to be an 80s style video?
+19:15 < jtanx> yeah that could work
+19:16 < jtanx> have you done it yet?
+19:18 < sam_moore> No :S
+19:20 < jtanx> well
+19:21 < jtanx> according to the manual, you need to connect a wire from R5 on the sensor board to the relay board
+19:21 < jtanx> problem was we already chopped off the lead on R5
+19:22 < jtanx> another group connected the wire to the LEd though
+19:22 < jtanx> seemed to work
+20:02 < jtanx> so are we using clock_gettime?
+20:08 < sam_moore> I think so, we can use CLOCK_MONOTONIC_RAW if we are paranoid about the system time getting changed
+20:08 < sam_moore> Or we can just use CLOCK_REALTIME if we aren't
+20:09 < jtanx> I thought CLOCK_MONOTONIC was supposed to be best, because the RAW version wasn't compensated for temp/other stuff
+20:10 < jtanx> http://stackoverflow.com/questions/3523442/difference-between-clock-realtime-and-clock-monotonic
+20:10 < jtanx> about the FCGI loop blocking
+20:10 < jtanx> you can switch to FCGX_ methods
+20:10 < jtanx> I think
+20:11 < jtanx> but is it really necessary
+20:20 < jtanx> about the valgrind comment in sensors.c
+20:20 < jtanx> this is probably it: http://stackoverflow.com/questions/5844242/valgrind-yells-about-an-uninitialised-bytes
+20:23 < sam_moore> It's probably not necessary to stop the FCGI loop blocking, don't worry about it
+20:25 < sam_moore> Yeah, I didn't initialise the buffers anywhere
+20:25 < jtanx> actually I can't reproduce that message
+20:25 < sam_moore> Hmm
+20:26 < jtanx> about the sensor times
+20:27 < jtanx> what about if you all reference it relative to some point
+20:27 < jtanx> eg
+20:27 < sam_moore> The epoch :P
+20:27 < jtanx> lol
+20:27 < jtanx> I mean
+20:28 < jtanx> when you get sensor data, you store the difference in time between the start of recording and now
+20:28 < sam_moore> Sure, that makes more sense
+20:29 < sam_moore> Just give the client the start of recording time and they can convert it to a time of day / day in the calendar themselves
+20:30 < jtanx> yeah
+20:30 < jtanx> you could have a specific request to return the starting time
+20:30 < jtanx> then it's implicit for all requests
+20:30 < jtanx> btw I submitted a pull request for the nginx configs
+20:32 < sam_moore> Ok
+20:32 < sam_moore> I've added you to collaborators so you can merge them yourself if you need to
+20:33 < jtanx> ok
+20:35 < jtanx> huh
+20:35 < jtanx> http://www.cnx-software.com/2011/09/26/beagleboard-emulator-in-ubuntu-with-qemu/
+20:41 < sam_moore> Nice
+20:42 < sam_moore> "Currently you can not access Ethernet" Not so nice
+20:42 < sam_moore> Although this is dated 2011
+--- Day changed Wed Aug 28 2013
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+16:31 < jtanx> huh
+16:31 < jtanx> firefox's javascript debugger is pretty cool
+16:31 < sam_moore> Firebug? Yeah
+16:35 < jtanx> nah the inbuilt one
+16:35 < jtanx> firebug's good for inspecting html though
+16:35 < jtanx> haven't used firebugs js debugger yet
+16:35 < sam_moore> Oh, I didn't know they had an inbuilt one
+16:36 < jtanx> Ctrl+Shift+K
+16:36 < sam_moore> Of course I normally use Iceweasel, which is currently built as firefox 10.0.2 with a different name
+16:36 < jtanx> well that's about 10 releases behind
+16:36 < sam_moore> That looks pretty similar to firebug anyway
+16:55 < jtanx> inline conditionals in javascript are whack
+16:55 < sam_moore> I haven't done much javascript, but a lot of it does seem whack
+16:56 < sam_moore> jtanx: What are you working on in JavaScript?
+16:56 < jtanx> unit tests
+16:57 < sam_moore> Cool
+17:01 -!- Callum_ is now known as Callum
+17:18 < jtanx> javascript in general is annoying me though
+17:25 < Callum> when exactly is this soldering lab due? fucking thing.
+17:27 < jtanx> next friday
+17:27 < Callum> it says week 5 on lms
+17:27 < jtanx> sept 6
+17:27 < Callum> where's it say this?
+17:27 < jtanx> yeah he made an announcement
+17:27 < jtanx> that it's wrong
+17:27 < jtanx> somewhere
+17:28 < Callum> sigh. this unit..i swear
+17:28 < Callum> if it really is next week then i'd be so relieved
+17:28 < Callum> wow
+17:28 < Callum> he made an announcement today..
+17:28 < Callum> wait yesterday
+17:29 < jtanx> still got that central plant fbd to do
+17:29 < Callum> why hasnt LMS emailed me a notification? (/end spam)
+17:29 < Callum> yea i know
+17:29 < Callum> which i think i have it pretty much done
+17:29 < Callum> not 100% sure on it though
+17:29 < Callum> and whether to add pumps and shit into it
+17:29 < jtanx> what did you have on it?
+17:30 < Callum> HA as i say that i check my phone and i have the message about the announcement
+17:30 < jtanx> and what did you call the chiller things?
+17:30 < Callum> pretty much just the 4 chillers, a line showing it can go back (they're literally called chillers ahha(
+17:31 < Callum> then i had another part to show the chillers (evaporation/condensor/compressor and cooling tower is connected to condenser)
+17:31 < jtanx> ook
+17:31 < Callum> however
+17:32 < Callum> im not sure about the input/output of the chiller
+17:32 < Callum> because stuff online shows it to be the evaporator
+17:32 < Callum> but isnt it water being pumped?
+17:32 < jtanx> I think there were pumps on the output
+17:33 < jtanx> were there three outputs?
+17:33 < Callum> also not sure if i should/wherte to add the tank (yea ofc theres pumps but not sure to put them in to the diagram, pretty much everything is pumped)
+17:33 < Callum> outputs where?
+17:33 < jtanx> North/Sout/East distribution things
+17:33 < jtanx> iirc
+17:33 < jtanx> yeah not sure whether to add tank or not
+17:34 < Callum> oh that, i didnt bother with that
+17:34 < Callum> just how did the chiller connect with the rest of the plant?
+17:34 < Callum> was the evaporator the input/output?
+17:34 < Callum> because the chiller feeds out to the water tower and the tower feeds back into the chiller (i think)
+17:36 < Callum> also what was the thing called? that allowed water to flow back and forth bypassing the chillers. back something?
+17:36 < Callum> really they should have told us before we went in we had to do this. some lazy fucks like me dont read the outline so i didnt take notes..or try to commit stuff to memory :po
+17:39 < jtanx> the bypass?
+17:39 < jtanx> I haven't gone into detail
+17:39 < jtanx> so I just have chiller
+17:39 < jtanx> and cooling tower
+17:39 < jtanx> maybe I should
+17:40 < Callum> remember how tehre was 4 chillers, and they would only run what was needed.
+17:40 < jtanx> yeah
+17:40 < jtanx> how many cooling towers?
+17:40 < Callum> and if they had more than they needed there was a pipe to flow back, or if they had some chilled water from the tanks or w.e it bypassed chillers
+17:40 < Callum> i dont know, but im not sure how to show it all
+17:40 < Callum> im sure what iv got is somewhat decent
+17:41 < jtanx> I used visio and I ended up spending so much time trying to get the lines rihgt
+17:41 < jtanx> probably would have been faster to hand draw it
+17:41 < jtanx> still not finished too
+17:41 < Callum> haha im fiarly sure i read somewhere it was hand drawn :p
+17:41 < jtanx> meh I suck at drawing
+17:42 < Callum> maybe not. "This is to be drawn and annotated on single A4 page"
+17:42 < Callum> i dont think they'll be picky
+17:42 < jtanx> and there's lines everywhere
+17:42 < Callum> really? how do you have lines everywhere?
+17:42 < jtanx> ok so chiller
+17:42 < Callum> it's a fairly simple system. unless i'v done it wrong :s
+17:43 < jtanx> has warm chilled water (1), chilled coolant (2), hot coolant (3), chilled chilled water(4), control line (5), (maybe) sensor back to controller (6)
+17:43 < jtanx> that's ~5 lines in/out of one box?
+17:44 < Callum> hmm. havent included coolant or control/sensor
+17:44 < Callum> maybe i should :S
+17:44 < jtanx> and an operator
+17:44 < jtanx> to the controller
+17:45 < Callum> thing is it asked for a high level FBD though
+17:45 < Callum> which means not very detailed
+17:45 < Callum> or maybe it didnt?
+17:45 < jtanx> yeah, so do you need to show condensor/evaporator
+17:45 < jtanx> I just have a chiller box
+17:46 < jtanx> anyway... afk ~10 mins
+17:46 < Callum> the condensor/evaporater is part of the chiller isnt it?
+17:46 < Callum> ok
+18:10 < Callum> anyone finished reading chapter 4 of the notes?
+18:11 < jtanx> what's that
+18:11 < Callum> sensors
+18:12 < Callum> so dull :l
+18:12 < Callum> and pretty much no chance to remember enough of it. quiz tomorrow is going to be fun..
+18:12 < jtanx> oh
+18:13 < jtanx> shit
+18:13 < jtanx> have to study for that
+18:13 < Callum> rofl
+18:14 < jtanx> :/
+18:15 < Callum> gonna just have to wing most of them again like last time most likely.
+18:15 < jtanx> probably
+18:15 < jtanx> Well, the unit testing thing works http://mctx.us.to:8080/unit-tests/
+18:15 < jtanx> now what unit tests should there be
+18:18 < Callum> not sure.
+18:25 < Callum> brilliant! the notes show a false colour image built from a black and white image...while printed in black and white.
+18:34 < jtanx> :P
+19:50 < jtanx> um
+19:50 < jtanx> did we get around to doing the sparkplus thing
+19:54 < jtanx> we need to do it before the end of the week
+19:54 < Callum> umm.
+19:54 < Callum> actually justin already set up the group
+19:54 < Callum> so you need to hurry up and join before we have to recreate the group :P
+19:54 < jtanx> nah it expired
+19:54 < Callum> wait already?
+19:54 < Callum> zzz
+19:55 < jtanx> 5 hr deadline
+19:55 < Callum> and adrian said it was 24Hr, whats with this 5 hour shit
+19:55 < jtanx> so... we need to try again
+19:55 < jtanx> when everyone's available
+--- Day changed Thu Aug 29 2013
+09:16 < jtanx> firefox blocks ajax calls if you try to run the file locally :/
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+14:25 < james__> Hey Jeremy. Is there a way to find my login hash key if i am already logged into the api?
+14:28 < jtanx> um
+14:28 < jtanx> right now you should store it
+14:29 < jtanx> just declare a global variable and set it to the hash
+14:30 < jtanx> or if you have made a class
+14:30 < jtanx> just make it an element
+14:31 < james__> I'm still logged in from ages ago and i can't logout so i can get a different key that works
+14:31 < jtanx> that
+14:31 < jtanx> ok
+14:31 < james__> Possibly a bug that needs fixing?
+14:31 < jtanx> so the way it works right now is there's a 3 minute timeout on the key
+14:31 < jtanx> no
+14:31 < jtanx> there's actually two layers
+14:32 < jtanx> the password that you enter first (mctxadmin) is what's called HTTP basic authentication
+14:32 < jtanx> this lets you gain access to /api/login
+14:32 < james__> Well i tried loging in again and its saying i am already logged in
+14:32 < jtanx> when you reach /api/login you get the access key
+14:32 < jtanx> there's a three minute timeout on the key
+14:32 < jtanx> if you wish to invalidate the key
+14:33 < jtanx> you call
+14:33 < jtanx> /api/login?end
+14:34 < jtanx> you can force getting a key by also calling /api/login?force
+14:34 < james__> right. well it worked this time
+14:34 < james__> Thats weird
+14:34 < jtanx> so the only thing that the key prevents is stopping accidental concurrent use
+14:34 < james__> Fair enough
+14:35 < jtanx> Calling /api/login?force will force a new key to be generated and the old one to be invalidated
+14:35 < james__> Okay
+14:35 < jtanx> btw as I was working on unit testing
+14:35 < jtanx> I did a function to retrieve the json data
+14:36 < jtanx> http://mctx.us.to:8080/unit-tests/unit-tests.js
+14:37 < james__> I will have a look. I have some buttons working and stuff. Working on putting them in a seperate script file for easier editing etc
+14:37 < james__> They don't seem to be playing nice at the moment
+14:37 < jtanx> ok
+14:38 < jtanx> how come it takes so much effort to get some buttons working
+14:39 < james__> Getting the css to mesh with the js
+14:40 < james__> I have buttons fine
+14:40 < james__> And they work
+14:40 < jtanx> maybe you should get the functionality to work first
+14:40 < jtanx> with the ajax queries
+14:40 < jtanx> before worrying about styling them
+14:40 < james__> I have the functionality pretty much working
+14:41 < jtanx> so the querying works?
+14:41 < james__> But i want the styling to work before we scale it up
+14:41 < james__> That way its less hassle to fix it later
+14:41 < jtanx> could you post it to git?
+14:41 < jtanx> it'd be cool to have a look
+14:45 < james__> The way i am thinking about having it set out is having a central index.html which just imports all the js. The js will contain all the functionlity seperated in to similar functions. Ie. all the buttons in one script
+14:46 < jtanx> right
+14:46 < james__> That should allow for ease of scaling and editing
+14:46 < james__> Also changing id's and stuff
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+17:06 < jtanx> say you want to perform a command
+17:06 < jtanx> eg move an actuator
+17:07 < jtanx> and suppose checks have to be made against other sensors to ensure that this command is good to go
+17:07 < jtanx> how are those checks going to be made?
+18:10 < sam_moore> The Actuator Handler will call some sanity check against the most recent sensor data
+18:11 < sam_moore> If they aren't, it will respond with some appropriate JSON or HTTP status code
+18:11 < sam_moore> eg: "Try again later when the pressure is in the right range", or "Don't do that you silly person"
+18:15 < jtanx> ._.
+18:21 < jtanx> I wonder if there's a way to pull from your git repository without creating the 'merge branch master from...' commits
+18:22 < sam_moore> I don't think so
+18:22 < jtanx> I tried playing with rebasing but it doesn't work out so well
+18:40 < jtanx> ok so I've committed some stuff to my repository that changes the handling of controls/actuators/login
+18:41 < jtanx> I'm not sure if it's the best way to do it
+18:41 < jtanx> though
+18:41 < jtanx> What I did was get rid of /api/login
+18:41 < jtanx> and instead have /api/control
+18:41 < jtanx> All of the control code (eg actuators but may be other controls? Start/stop the whole thing?) has been moved to controls.c
+18:42 < jtanx> You still need to supply username and password to access /api/control
+18:42 < jtanx> and what was previously called the 'authorization key' is now the control key (ie who has control)
+19:00 < sam_moore> Ok, I'll take a look at it later
+19:01 < sam_moore> Don't worry about the merge messages, it's not a big deal
+19:06 < jtanx> ok thanks
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git.ucc.asn.au / matches / MCTX3420.git / blobdiff
UCC git Repository :: git.ucc.asn.au