DDraceNetwork - developer

DDraceNetwork

Development / developer

Development discussion. Logged to https://ddnet.tw/irclogs/ Connected with DDNet's IRC channel, Matrix room and GitHub repositories — IRC: #ddnet on Quakenet | Matrix: #ddnet-developer:matrix.org GitHub: https://github.com/ddnet

Between 2021-01-09 00:00:00Z and 2021-01-10 00:00:00Z

@Learath2 I fixed the teehistorian2demo tool for 0.7 messages and 64p support

01:32

can you push it to the mod tool?

@heinrich5991 thank you ❤️

[ddnet-maps:master] 1 new commit

6c5be54 M Executive - ddnet-maps

Cheated top1 on "Thomas"?

06:56

or is it. May be legit

07:00

no, don't think so

can we ban him after you confirm its cheated?

legit rank

07:39

why not ban u, i think is better

troll

does tw need a lot of data? i use my phone internet now so i dont lagg but i only have 5GB per month

~10 KB/s

10:41

36 MB/hour (edited)

cant get much less than this i guess

10:42

thanks

playing 4 hours every day u waste 4gb a month more or less

10:43

monkalaugh

well its a lot less that i feared

well

10:46

it doesnt count map download

i just wanna tryhard a map rn thats all

maybe if its a solo map it is even less data

definitely

if u dont see other tees

it didnt lagg for 2 hours but ofc i get a big spike once im a bit further into the map

Image attachment

10:47

just my luck

rip

[ddnet/ddnet] Pull request opened: #3488 Implement network statistics for recvmmsg

!screenshot-20210109@114810

Checklist

[x] Tested the change ingame
[x] Provided screenshots if it is a visual change
[ ] Tested in combination with possibly related configuration options
[ ] Written a unit test if it works standalone, system.c especially
[x] Considered possible null pointers and out of bounds array indexing
[x] Changed no physics that affect existi...

@deen what do u think about moving the debug info below the shields

I think we should remove the shields and hearts

xd

on the map 'Vesper' on solo, there are 2 tiles in the switch layer with weird unused tileflags: 0b00100100 at x=45, y=50 and 0b10101100 at x=46, y=50

11:52

250.74 KB

11:52

fix is reproducible with https://gitlab.com/Patiga/twmap/-/blob/master/src/bin/fix_map.rs

11:53

fix_map --ddnet --zero-unused-tile-parts Vesper.map Vesper-fix.map

11:55

note that only the lower 4 bits of the tileflag byte are used

11:57

-> and of them the third lowest bite (0b0100) is the OPAQUE flag which is only for tiles layers

thanks

Im 'corneum

it didnt lagg for 2 hours but ofc i get a big spike once im a bit further into the map

how do you show these graphs in debug mode HuhChamp

HuhChamp

@NeXus first ctrl+shift+d then ctrl+shift+g (edited)

[ddnet:master] 2 new commits

b5440d7 Implement network statistics for recvmmsg - def- fc2a49d Merge #3488 - bors[bot]

14:06

[ddnet/ddnet] Pull request closed: #3488 Implement network statistics for recvmmsg

What was the command to safe records in a file?

serverside? they're saved to a file by default

[ddnet-discordbot:master] 2 new commits

29371c0 use correct map channel name - 12pm dc1adef remove unused variable - 12pm

yea to sqlite3 files even nowerdays hm?

ye

yo @Trafalgar Law get wire again or join this discord if you want to chat w me https://discord.com/invite/ADhSwpt or find ingame but pls no middle mans :/

can the rank website also show hours instead of minutes?

Do I really need a circle ci account to see what the style checker doesn't like about my pr? https://github.com/AntennaPod/AntennaPod/pull/4848 (edited)

[ERROR] /home/circleci/AntennaPod/./app/src/main/java/de/danoeh/antennapod/fragment/preferences/PlaybackPreferencesFragment.java:55: 'if' construct must use '{}'s. [NeedBraces]
[ERROR] /home/circleci/AntennaPod/./app/src/main/java/de/danoeh/antennapod/fragment/preferences/PlaybackPreferencesFragment.java:55:25: 'typecast' is not followed by whitespace. [WhitespaceAfter]
[ERROR] /home/circleci/AntennaPod/./app/src/main/java/de/danoeh/antennapod/fragment/preferences/PlaybackPreferencesFragment.java:60: 'if' construct must use '{}'s. [NeedBraces]
[ERROR] /home/circleci/AntennaPod/./app/src/main/java/de/danoeh/antennapod/fragment/preferences/PlaybackPreferencesFragment.java:60:25: 'typecast' is not followed by whitespace. [WhitespaceAfter]

16:39

@timakro ^

So the answer is yes? xD

16:41

Thanks

yes

16:41

I happened to have one

I just was about to commit this xD

16:41

guessed it

also the typecast thing? oO

16:41

I can see the {} thing

No

16:42

What is that

'typecast' is not followed by whitespace.

16:42

(Boolean) abc

Eww

yikers got a few system crashes today and now even teeworlds is affected :/ zlib randomly fails to load mapres and sometimes some mapres are in these rainbow colors xd

16:44

its getting worse and worse seems like i have to burn my system with fire soon

16:45

any known places where i could have files that i forgot to backup? I feel like i have 0 files on my device that i need to backup but im not sure

have you tried gdb?

me?

16:45

on what exactly

the programs that crash

16:45

or on the coredumps they produce

gdbing firefox sounds hard

gdb firefox

also debugging the whole system sounds out of my scope

then check some coredumps

u sure i can just run gdb firefox

This is a great and super short gdb guide https://beej.us/guide/bggdb/

i know gdb :)

16:47

i also know beej he is cool guy

I continued with my embedded quadcopter project and finally learned a little bit of gdb

nice

The only thing I knew before was gdb blabla then run, wait for the crash bt

well for simple exectuable thats the case

that's all ChillerDragon needs to know for debugging a random program on his computer

when u start to debug things like firefox the kenrnel or ur wm its a bit more setup to do

16:49

gdb -ex=run firefox doesnt work as i expected

maybe firefox is special due to its multi-process architecture

ye

You can do fancy stuff like showing the disassembled instructions in tui mode layout asm and stepping through them si

firefox keeps running even if it crashes or only invididual tabs crash etc

16:50

ye ik

wait -ex just runs the command after startup?

i wonder if there is anything simpler i can debug but all the things that make trouble are so nasty

16:50

ye

oh i need that actually

teeworlds can simply be put into gdb

i use it to create automatic backtrace logs and restart tw server

16:51

ye tw doesnt crash yet just a few random failures in zlib

i'm constantly typing arm-none-eabi-gdb and then target extended-remote localhost:3333 to connect to openocd

use .gdbinit

but can you tell me why you completely ignore my advice to look for coredumps?

16:51

coredumpctl

yea cuz idk how to search or active them

then say that, not ignore me, please

sry xd

16:52

i expected something like google it as answer

what does coredumpctl?

16:52

say?

show a list

16:52

Embedded image

does it coincide with crashes you remember?

16:53

especially those with corefile != missing

ye loosk good

16:53

Embedded image

get the coredump out of coredumpctl (check --help) and debug it with gdb

https://wiki.archlinux.org/index.php/Core_dump#Examining_a_core_dump

ah nice there is even auto start debugger with "debug"

Now I know what a coredump is ^^

Embedded image

useful for debugging after the fact @timakro

but yikers firefox coredumps

Is coredumpctl systemd?

think so

yes, but coredumps are linux

you can either create a file in current dir or send it to a application like coredumpctl

Yep, the kernel writes them obviously

sysctl -w kernel.core_pattern=core

16:58

creates files directly with the name core instead of using coredumpctl as far as i understood

can you list all threads?

16:58

ChillerDragon

16:58

(idk how)

Embedded image

16:59

oh vscode doesnt start at all maybe i can debug that boi

16:59

ye too bad gdb code doesnt work either

Is this firefox?

ye

file $(which code)

17:02

for me, /usr/bin/firefox is a shell script

17:02

hence gdb won't work

ah ye same w code

check what it calls and call it manually I guess

electron wrpapper

17:03

its running js

17:03

im not sure where to slap gdb here xd https://zillyhuhn.com/cs/.1610211610.png

Embedded image

after exec

well i guess i can try running electron with gdb and this js arg

17:03

yea

17:03

lemme try

17:04

LMAO

17:04

it works with gdb attached

17:04

xd

here's your fix

ah nvm crashed

hm

no stack

17:05

hmm

no stack?!?

17:05

did it crash in a subprocess? :/

maybe electron yea

check coredumpctl

its there

debug it

if i knew how to get it xd

didn't you just do it with firefox? ^^

i passed "debug" option to debug the first present one

17:06

ah it takes matches

17:06

maybe "debug electron"

17:06

hackerman

17:07

also libthread

17:07

Embedded image

17:07

its getting better an better xd

17:07

Embedded image

17:08

oof

Where do the debug symbols even come from? Do distros compile their stuff with -g?

relwithdeb

@timakro function names are always there

17:11

debug symbols give you line, variable name information

ah

these function names are used for dynamic linking. everything that's not declared static in C is there

ahh, right, has to be

ChillerDragon: is info proc mappings available for coredumps?

yes its there but is a lot

check in which library it crashed I guess

i thought it is libpthreads

where do you see that?

when the coredump is loaded

17:16

ah nvm

17:16

read wrong

17:16

i never used proc mappings what am i searching

it says what memory areas are mapped

17:17

check where your execution is and check in which area it is

Embedded image

17:20

hmm so the mapping starts at 0x555555554000 but the crash is already in 0x000055555ab2942d ?

17:20

i guess thats why it says in () in the backtrace becuase its not mapped?

isn't it in the second mapped region?

17:22

6 < a < c

ah lol sure me brainded

17:22

ah ye so electron crashed in electron

17:23

so far so good

good to know

ikr

you know it's easier with a microcontroller where my binary is <1k and the only library is newlib

also debugging tw is easier

17:24

sometimes

17:25

seems like i have to buy a new arch linux

I'm trying since 1h to talk to the bluetooth chip on my drone but it's not answering! And I can't check if the serial connection even works because the connection is just hardwired on the board

Embedded image

18:19

yea but this is libpthread for sure

why is sendmsg in libpthread? ^^

like sending a msg to a thread idk?

18:21

or do you think it is networking stuff that crashes multithreaded?

man sendmsg

18:21

sendmsg — send a message on a socket using a message structure

oof why do u have a man i dont?

18:23

Embedded image

18:23

wait so its a syscall right does that mean it crashed in my kernel?

$ pacman -Qo /usr/share/man/man3/sendmsg.3p.gz
/usr/share/man/man3/sendmsg.3p.gz is owned by man-pages 5.09-2

so userland gdb wont even catch it?

it's not crashing in the kernel

18:23

that would be a kernel oops or a kernel panic

nice packet ima dl it

nothing that would generate a coredump

heinrich5991

@timakro function names are always there

only functions that have external linkage btw

heinrich5991

these function names are used for dynamic linking. everything that's not declared static in C is there

these are those that are not marked with static

oh missed your follow-up

do you know where the mod tool is hosted and could update teehistorian2demo?

ddnet.tw

19:18

I can update it later tonight

nice

@heinrich5991 is the mod tool closed source?

@Ryozuki idk. it's essentially a frontend for downloading teehistorians and piping them through teehistorian2demo

it just pipes the download of teehistorian to teehistorian2demo

20:01

it's also awfully coded but I can add that to ddnet-web too if you want

without the link to my home server maybe, but othewise yes

it doesn't expose your ip in the script

but a host name?

20:03

that resolves?

no we proxy it

20:03

it doesn't resolve

good

20:05

btw, I think we're using an unencrypted connection between the servers and the database server

20:06

might want to tunnel that through wireguard or so, maybe I'll set that up if no one minds

doesn't mysql support tls?

20:06

sounds easier than wireguard

20:06

like this: https://mariadb.com/kb/en/secure-connections-overview/

Secure Connections Overview

Data can be encrypted in transit using the TLS protocol.

everyone

greenthing

1

20:07

@

sounds easier indeed

is everyone not fixed yet?

it is

wireguard is so cool

20:36

but tls is much much easier

have you set up a wireguard already? I found it quite straightforward

20:38

I used it for reverse-proxying something from the server to my home PC

20:41

I even played a round of AoE2 over wireguard

that was fun, it just worked out of the box

I finally got rid of openvpn a month or so ago

21:02

maybe even 2 months now

21:02

works perfectly

[ddnet/ddnet] Pull request opened: #3489 Port some refactor from teeworlds-0.7

Hi, devs. I'm considering options to rebase another mod on the DDNet code and I found a lot of missing API. I also think that it would be simpler for you to cherry-pick patches if DDNet will provide and use a similar API. If you're OK with such changes maybe I'll try to also backport commit https://github.com/teeworlds/teeworlds/commit/de5859b3717406f9f0e728506ad0ef15d4e87337 (change API from CConfiguration g_Config to IConfig *Config(), @heinrich5991 seems to be familiar with that...

Hello, devs. What is your opinion on work with other mod-makers? Teeworlds 0.6 has some base for mod development, but 0.7 is less and less moddable, so nowadays it makes sense to consider DDNet as the base for mods instead of any version of the upstream Teeworlds.

there are already mods based on ddnet, some guy with his infection server, the thing is, they die cuz no one plays them

The issue is that DDNet (like probably all other mods) do the job in base classes instead of subclassing. I understand — the reason for that is that Teeworlds API is not extendable. Classes are not subclassable, etc.

Ryozuki

there are already mods based on ddnet, some guy with his infection server, the thing is, they die cuz no one plays them

Oh, they're basing on DDNet. That explains a lot of things

i mean, the game being fully open source makes the devs (of teeworlds) not really look much into "modding support" as you mean, the only thing u have to keep in mind generally when making a mod is keeping it compatible with the most used clients

21:38

there isnt a api like forge for minecraft for modding cuz the game itself is already open source

21:38

idk

For me, it looks like they're doing a game, and not doing the software. It always helps to have a good architecture with a clear separation between different levels of logic and implementation.

@Learath2 whats your vpn provider? (edited)

@timakro me myself and I

22:21

@Kaffeine it makes sense but this is just a huge bowl of spaghetti made over 10 years or so. It's not the result of design

you yourself and u?

22:21

monkalaugh

I was 12 when I made my first commit

i was 15

Learath2

@Kaffeine it makes sense but this is just a huge bowl of spaghetti made over 10 years or so. It's not the result of design

Absolutely true. But we can do some design step-by-step.

people just added things over the years not really thinking of the future at all

to be fair nobody expected this game to live so long

I can't agree more

@Kaffeine certainly. There is a great place to start too, turning IGameController in 0.7 into an abstract base clasee

22:23

class*

I stopped playing in 2011. And three years ago I got to know that the game still exists!

I started rewriting ddnet trying to keep the modifications into vanilla as little as possible, but since IGameController is just pretending to be an I it's really hard to avoid it

Learath2

I started rewriting ddnet trying to keep the modifications into vanilla as little as possible, but since IGameController is just pretending to be an I it's really hard to avoid it

I started to rewrite some mode trying to keep the modification as little as possible too! I'm managed to have 32 insertions(+), 9 deletions(-) to the upstream code (except CMakeLists) and working very basic gameplay (I'm re-engineering InfClass).

22:27

Basically I just turned some private to protected and added some virtual here and there.

that pr looks fine, but if we are gonna change all variable reads to getters we are in for a big diff xd, putting those packets into its own methods is nice

encapsulation is overrated

Ryozuki

that pr looks fine, but if we are gonna change all variable reads to getters we are in for a big diff xd, putting those packets into its own methods is nice

I replaced all m_Pos reads with GetPos() — it is about 130 lines. But we also have some writes and there is no SetPos() method in the upstream API. So I kept it as-is for now.

it won't give us much moddability at all, especially while there is a lot of actual abstraction that needs doing

i meant in the future, if we are going to others too

like IGameController and CGameContext being too interconnected

to change others*

Learath2

encapsulation is overrated

It feels like you're a software developer, are you? I mean your "paid" work.

Learath2

like IGameController and CGameContext being too interconnected

I still have no idea what is the idea behind those two. It seems that both do everything.

No, I'm a student still, one that probably won't graduate and become a burger flipper instead

feelsbadman

oof

Learath2

No, I'm a student still, one that probably won't graduate and become a burger flipper instead

I think you're kidding.

OTOH some known developers quit university. Mark Zukenberg, Steven Jobs, Bill Gates, etc. You name it

(edited)

I'm just not good at the classical engineering stuff like analysis and signal theory

Learath2

I'm just not good at the classical engineering stuff like analysis and signal theory

Your commits look better than do half of my colleagues. You won't become a burger flipper if you don't want to.

do you study electronics engineering?

and I'm not lucky enough to be born in a decade where basically every idea you get was new so dropping out will instead make me one of many bottom dwellers of society

22:41

Computer Engineering

ok, didnt realize they also have those things

@Learath2 ur in italy still right

yes

here most tech jobs dont require u the uni title

22:42

they require a technical title

trml

ok, didnt realize they also have those things

I didn't realize I was signing up to become an artillery or communications engineer in the german army circa ww2 either

idk the name it varies from country to country

22:44

but ur in 3rd year right

22:44

i quit at 1st year, but quitting at 3rd is another thing

I've already wasted 3 years, by the time I switch over to a tech degree and finish it I'll be too old to be hirable in the softwaresphere

xd

Maybe I'll be qualified enough to become a drug addict living under a bridge

oh, in my country some of the CS/"informatics" studies seem pretty light on math (edited)

I probably could finish this, but my brain doesn't really want to cooperate, I'm awake like 3 hours a day

22:46

Doomed to failure by my own brain chemistry

u should probs be less here

22:46

and more there

22:46

but im not someone to say anything

22:46

xd

I'm only here at night anyway, I'm too tired to study at this hour

u tried freelancing? i tried but i never got a client ever, its full of cheap devs with more skill in marketing than in developing

I have a window of 3-4 hours between 1000-1400 where I'm awake enough to retain any information

and im 2 lazy to do any marketing

22:48

xdddd

It's just the way it is, I can't do anything if my brain just plain refuses to do it

22:52

I get about 200mg of caffeine a day so I can atleast stay a bit focused, it makes my hands jittery as hell, but at least I'm a little productive in those 3-4 hours

Ryozuki

u tried freelancing? i tried but i never got a client ever, its full of cheap devs with more skill in marketing than in developing

Indeed, it seems to be very hard to do some freelance. It is much easier to get a usual job :). I started to work for my professor and after a few years, it is not a problem to find a job anymore. (edited)

freelance is such unstable income

Learath2

freelance is such unstable income

And it is also more about marketing indeed.

[ddnet/ddnet] Issue opened: #3490 Can't log into rcon after timeout protection used, still shown as logged in

Can be reproduced by logging into rcon before using timeout protection to get the timed out tee.

Exported 335 message(s)