development

[clear thistle]

damn i should use that

[unique folio]

show me how should it look like

[clear thistle]

im so sick of using my school onedrive

i mean

[unique folio]

because i have link to it

[clear thistle]

its free

[unique folio]

this

one

[nocturne galleon]

https://cdn.discordapp.com/attachments/826435127789748246/826435184953262140/bajamaliknindza.jpg

[midnight wind]

just <img src="http://example.com/image">

although

[unique folio]

ight

[midnight wind]

idk if CORS will interfere

[unique folio]

lets see

[midnight wind]

if it does

[nocturne galleon]

closing >

Pro tip if u ever delete on discord and still want it, change CDN.discordapp.com to media.discordapp.net

[midnight wind]

oh yeah right

[midnight wind]

<img src="http://example.com/image" referrerpolicy="origin-when-cross-origin">

[unique folio]

yeah it works now

[midnight wind]

if it doesn't work try this

ah ok

[unique folio]

let me see

if it works on teams

[nocturne galleon]

Keep the image on a server u own in case mods purge here, and the media.discordapp.net link also doesn't work

[unique folio]

HAHA

fuck yeah it works

hvala za to

means thank you for that if something

[nocturne galleon]

[peak acorn]

thats cool

ftp file system with discord

[nocturne galleon]

Whats the best language

I prefer python

[midnight wind]

there is no best

just like there is no best road vehicle

best in what?

speed?

[nocturne galleon]

True ok well what is your prefered

[midnight wind]

js, cpp are both nice

I want to learn ruby

[warm sleet]

@nocturne galleon there's no best language

different languages for different purposes

[nocturne galleon]

Yep I corrected myself but yea

[peak acorn]

Rust o_O

[tight charm]

Why do you think that? 😉

[midnight wind]

ejs, handlebars, pug, etc. Basically dynamically rendered html

[tight charm]

For side projects I still sometimes write vanilla HTML. At work we write jsx though.

[midnight wind]

yeah sometimes I write html, but very rarely

[tight charm]

My favourite templating engine is LinkedIn’s DustJS

[midnight wind]

never heard of that

[tight charm]

The advantages are that it can be used on server and browser, you can JIT load the templates and cache them, loading and rendering is async so it’s very fast

And is less opinionated about logic

[terse minnow]

Does anyone know 32-bit intel assembly?

[halcyon pond]

I do prefer python. But, I don’t think it’s the best. It may be the best in some areas. But certainly not in all. I like python to do easy input output stuff like discord bots. But I prefer java(also not the best) and C# when doing more (larger) Object Oriented Programming

[halcyon pond]

I’m don’t. I am not even sure if I was even born yet or at least old enough to know anything about computers when 32 bit systems were still a thing.

[clear thistle]

random question re: languages

what languages has the fastest run time

like

least latency/response time

C?

[warm sleet]

@clear thistle that's a nonsensical question

latency and response times are not a property of the language, rather that of the system itself

[clear thistle]

k sorry yeah that was badly worded

what i mean is

whats the most efficient

least overhead

[warm sleet]

that ^ only makes sense if you are arguing over native execution and interpreted

the same program in C would be just as fast as if it were written in Rust or another natively compiled language

since its to be expected that they emit the same machine code

VM languages like Java and C# (all of .NET framework) have an intermediate language that is near machine language

those sit inbetween native and interpreted

@clear thistle if latency and response times are of high priority, the OS itself might be completely different

like an RT Linux, Realtime kernel can act on external stimuli with less latency than a regular kernel

but thats only due to interrupts

[deft sigil]

is there a way to start powershell from cmd without it opening a separate window (so not cmd>start powershell.exe) , so in the same way typing cmd (ps>cmd ) in powershell works?

[ashen sky]

Just typing powershell should do the trick.

[deft sigil]

apparently its not in the default path, or something screwed up my PATH variable pretty bad , als what you say seems to be true , and running it in the powershell folder does work so :

thnx

[warm sleet]

https://i.imgur.com/j9KzRqi.png

wat

[deft sigil]

so indeed it works butt only when i run it form the folder where powershell originates, so the PATH variable (the place where the os looks for executables (the ones you can run without appending.exe or .bat) is in that variable and since it cant find my powershell something messed up that variable i assuem

[warm sleet]

@deft sigil Ill do you one better: https://i.imgur.com/hPdxe7w.png

[deft sigil]

orlly?

[warm sleet]

Linux DESKTOP-E49ULUK 4.4.0-18362-Microsoft #1049-Microsoft Thu Aug 14 12:01:00 PST 2020 x86_64 x86_64 x86_64 GNU/Linux

wait which is it?

MINGW64_NT-10.0-18363 DESKTOP-E49ULUK 3.0.7-338.x86_64 2019-04-30 21:52 UTC x86_64 Msys

WSL 🤢

[deft sigil]

in a vm atm but it also boots from bare metal but im not gonna reboot for a screenshot :p

or : (proud i got this one working with secure boot enabled 😄 )

the bash i got in windows is just the one that is accompanied by GIT for windows , or the one that is accompanied by Cmder , so its a version running on windows (MINGW64) not in WSL

last one i promise 🙂 and worth checking out : laserfast and less vulnerable to shellshocks : ion (written in rust)

[warm sleet]

@deft sigil I'm a zsh fan myself

[deft sigil]

@warm sleet i found ion intresting because its not written in C and therefore should not come with all the hazards that C brings with it , also it comes from a different os https://github.com/redox-os/ion, was easy enough to install and give it a try so , otherwise im just a regular old bash user 🙂 as i tend to break out python anyway if a script gets more complicated as a sequence of comandline statements anyway but i might give zsh a try when i got the time to get in to it as its basicly bash improved 2.0 for what ive heard about it

[warm sleet]

@deft sigil ZSH on its own is just that

but I prefer using it with a community addon

providing many autocomplete features

https://github.com/ohmyzsh/ohmyzsh

https://i.imgur.com/Te2JVdh.png

it doesnt make you a hacker

but makes you look like one

cd as a command is overrated

can just type bare words and it will figure it out

if you feel adventurous https://qntm.org/suicide

[deft sigil]

mm nice , but since my systems always end up being just that little different in a way that totally breaks everything 😛 dunno why even with gentoo half the tools for managing portage dont work because of my stubornness 😄 ps also got the shell prompt form the titus guy? 😄 anyway not the way i wanted it to work entirely but i seem to have ran out of talent on this one but it works so : downloads all vcredist files (includiung the pythonone) to a folder and then installs them one by one in the background (as much as possible) if you ever have to setup a new windows install (or for in a vm to get tem all at once instead of having to search for them every little app or tool you install that doesnt come with them) https://pastebin.com/g9d0AwQN

[warm sleet]

uff

@deft sigil if you want a single config to work for you the next 20 years or more

try NixOS

@deft sigil if you want a single config to work for you the next 20 years or more

entire system installation is declarative

[deft sigil]

for instance if want to use flaggie (tool for managing useflags) on my system it wont work because i decideed to make my make.conf a directory of files instead of a config file :

[warm sleet]

I never quite understood what that is supposed to be

xorg uses similar way of storing config files

01-something.conf

is that execution order?

[deft sigil]

if you compile a program you can give it parameters as to how you want to compile it , first for the system its suposed to run on (cpu and other hardware so the c compiler can optimize the program for the things that cpu supports) and also what else is on the system lets say you want to run only on kde and dont ever gonna install gnome you kan add +kde +qt and -gnome - gtk to the make files so every program that has support for both gnome and kde can throw all the code that is in the program for gome and gtk support away and only leave the code for kde support , making a leaner binary in the end. and imagine as the regular distros compile there binaries for the widest possible range of compatibility , these are the flags i have atm so everything with radeon / nouveau / intel graphics support support can trow it a way any suport for openrc aswell but if it can be compiled with support for jack audio kit it wil , a good example to try out is to run IDLE on a distro as many distros choose to compile python without TK suport and idle runs with tk so it wont run

na its just the order in what way the config file make.conf would be put togheter but as it doesnt matter for that config file its just for my personal ease of tab use 😄 ow useflags 9[tab] ow , but im still converting it as i named all of the 00 to begin with 😄 but as long as emerge doesnt care its for after the current emerge -e @world (recompiles the whole system) 😄

[warm sleet]

@deft sigil confusing.

I've been using menuconfig for kernel configuration

but beyond that, not much

[deft sigil]

@warm sleet srry my isp doesnt like me verry much

as you can see in my gentoo screenshot im running my own kernel too (without an initramfs and only 4 modules (the binarydrivers form nvidia) since its not that big and i have a bit of ram so makes for a verry quick boot and the whole kernel is in ram that way 😄

here is a nice one on screeny just made (had to reboot to yet another isntall on my pc :

[nocturne galleon]

how-

[deft sigil]

how? what

how i did it 😄 ?

[warm sleet]

@deft sigil I hacked the ubuntu distro kernel to bits lol

to keep my old ubuntu 16 install going

kernel preempt makes even the shittiest of duo-cores enough for a low latency experience

[deft sigil]

if your gonna install gentoo you might aswell do the whole kernel as a custom job aswell i figured , a day or 2 extra to go over every option in the kernel is nothing in the total scope of installing gentoo 😄 as i decided to go for systemd (gentoo users and there for manuals dont like systemd verry much) while im at it and , since i was feeling adventures i also chose to only run wayland + kde on the proprietary nvidiadriver 😛 its not running yet have some issues with gpsd (wich i dont need but something pulls it in when emerging plasma-meta and im still figuring out what, because i was there on my previous attemt (that i blew because i decided to format my /boot and swap partition and move everything to fat32 for boot and the swap on a file instead and i entered the wrong of= in dd effectively formatting the first gb of my /root 😦

[warm sleet]

@deft sigil nah. let me stop you right there

I got better things to do than recompile libreoffice during a lunchbreak

[midnight wind]

I don't have time to do this type of low level stuff

[warm sleet]

I do

but only if it is worth it

@deft sigil ahh, so you are part of the anti gang

I have mixed feelings about systemd

Have you used this before? https://www.devuan.org/

Debian fork without systemd

[deft sigil]

@nocturne galleon as how yo do it for the two screens : just do these: (for your system adapted ofcourse)
#mount the root of the linx distro to a folder in my case /mnt/gentoo
mount -o rw,acl,active_logs=6,background_gc=on,user_xattr -t f2fs /dev/disk/by-label/GENTOO /mnt/gentoo
#mount all required system folders and rbinds(for systemd)

mount --rbind /sys /mnt/gentoo/sys
mount --make-rslave /mnt/gentoo/sys
mount --rbind /dev /mnt/gentoo/dev
mount --make-rslave /mnt/gentoo/dev ```
#chroot to the partition with the shell of the distro
```chroot /mnt/gentoo /bin/bash
source /etc/profile```
#rename the prompt to remind you on what system your working
```export PS1="(chroot) ${PS1}"```

[nocturne galleon]

Ah okay, thanks

[warm sleet]

tricks

[deft sigil]

a bit mor clear this way i hope , chrooting can come in handy if you have a broken kernel or otherwise system incapable of booting and you want to fix it , by using a live usb or a differnt install that does work , only recuirement for it is that it must allow chrooting (most live distro's will have that option but just saying)

the options behind -o are also only if you use the F2FS (the filesystem for nandflash drives like nvme,or satassds , emmc, sdcards , usbsticks,...)

[violet cipher]

Hey guys, as recently (Thanks to the whole Certified Gamers Program), the pressure to get to a newly uploaded video as quickly as possible got higher than ever.

Combined with the fact that the existing notification systems (Including the notification bell and this server's notification channels) are surprisingly unreliable, and can result in tens of precious minutes of latency between video upload and notification, I was inspired to make a little program to notify me as soon as a video was uploaded.

Less than a day later, I am done and have a script that sends me a ping on Discord within half a minute of a new video getting uploaded to the LTT channel (But works for any channel really).

In the spirit of the program however, I felt that I should share the little advantage / Fix around, so that at least other people that have as little as a Raspberry Pi at home could use it as well.

The code + a brief documentation can be found at https://github.com/Aldenar/YoutubeWatcher

If you have any questions to the setup process, feel free to ask. The project's description doesn't go into every little detail of setting up a python environment and keeping the script running etc.

That said, I'm primarily a Linux user and may not be able to provide all the answers to Windows-related setup.

For example, today, a new video came out around 7:20. Already at 7:20, this program sent me a notification.

In comparison, this server's notification channel only sent a notification at 7:37 - 17 minutes later, when it comes to the Verified Actual Gamers program is a lot (Practically guaranteed to be out by the time one gets to it)

[vast mulch]

did i miss smth?

[frozen elk]

that is vm version supported by Microsoft

[vast mulch]

fml

gonna check if this has some gpu drivers support

so it does not run on openGL

[frozen elk]

Open source insensitive

[vast mulch]

if it works like i think i can erase my dualboot

[vast mulch]

oof

[frozen elk]

I think, AMD works fine, Nvidia still need voodoo magic

[vast mulch]

i think not

https://www.reddit.com/r/bashonubuntuonwindows/comments/md9u82/new_wslnvidia_drivers_live/

[frozen elk]

it's still VM

[midnight wind]

it's not a VM

it's weird

it kinda it

[vast mulch]

it is a translation layer

[midnight wind]

but at the same time

[vast mulch]

but it is not.

[midnight wind]

it's not

[vast mulch]

exactly xD

[frozen elk]

yea, something like that

[midnight wind]

WSL2 is more of a VM whan WSL

[frozen elk]

It's doesn't use latest build of Ubuntu

[vast mulch]

it is that.

[frozen elk]

yea

[midnight wind]

that's fine tbh

I rather stability

[vast mulch]

i just want my vsc and a simple terminal

vsc on windows works weird.

[frozen elk]

I am about that Nvidia driver

[vast mulch]

preview drivers though.

[frozen elk]

maybe it not arrived yet

no, it not there

[rancid nimbus]

Does vsc mean visual studio code?

[vast mulch]

yeah

[violet cipher]

WSL2 is a VM running atop the Hyper-V hypervisor, side by side with Windows.

WSL1 was a translation layer, translating Linux kernel system calls into Windows system calls

Meaning there were things that just weren't possible to implement. WSL2 gets around this and most stuff works.

[rancid nimbus]

I liked it before l. I have not used it recently. Someone "required" me to use visual studio code. They did not realize I did not use it. I used vim and tmux.

[vast mulch]

i have to use vsc cause i am forced by my employer ;D

[midnight wind]

I use vscode because I like it

[rancid nimbus]

Does wsl allow you to mount an ext4 partition in windows? I seen some where that windows has ext4 support, but have not figured out how it is done natively like was claimed.

[vast mulch]

gui works

so i am a happy man already.

over xrdp but good enough

[rancid nimbus]

Programmer calculator?

[vast mulch]

x11 tools

[rancid nimbus]

What is xrdp?

[vast mulch]

just to test it out

[midnight wind]

how? nativly or though X11?

[vast mulch]

x11

[midnight wind]

ah

[vast mulch]

but they done a lot of work already lol

for microsoft it's a lot

ignoring that azure does not work after all these years like it should.

first actual ARM macbook

now Windows with WINE-like tool but in reversal.

2021 will be a fun year.

[violet cipher]

I use a vcxserver X11 implementation for Windows then connect to it through a local network to use GUI apps

Works fine

[vast mulch]

that is also a way 😄

did you manage to install KDE or gnome on it?

[midnight wind]

I've been using linux nativly for more than 3 months now

[violet cipher]

I installed xfce but never launched a whole UI, just individual apps.

[vast mulch]

how's the experience?

[midnight wind]

pretty good, some apps don't work but that's expected for course. For webex I just join from browser. We use zoom at school. Main thing that's the most annoying are the X11 visual bugs and the latency

[violet cipher]

It led me do funny stuff like this

[vast mulch]

i am thinking about Linux on Windows on Linux VM inside of Windows

[violet cipher]

I... Am not sure if you can run a VM inside a VM. Would the virtualized CPU support virtualization instructions?

And that is, of course, ignoring the question of "why would you do that" 😄

[vast mulch]

i mean that is what you used to get gpu-support on native linux running windows

gpu-passthrough

so nested virtualization should work

[midnight wind]

nested virtualization works, but it depends

doesn't amazon do that?

[vast mulch]

yep

[violet cipher]

Yea, you can pass some HW through, but without some rather complicated configuration, all you get is a KVM CPU or something inside your VM, not the actual CPU

Well, I mean, Amazon sure does have the time and resources to make their own custom solution to just about any problem 😄

[peak acorn]

huh I remember doing that a long time ago to run a program

ran some XServer or something

[olive stump]

Any rusteceans around?

[fickle kite]

https://stackoverflow.com/q/66903779/13484019

can someone please help me its about java

[warm sleet]

blueJ ew

use maven

@fickle kite the error in that stackoverflow example, is the lack of properly passing libraries to the virtual machine

but idk shit about BlueJ, all I know is that its a horrible IDE to work in

[winter thorn]

It does not, unfortunately. There exist some installable file system drivers to do it for Windows: https://www.howtogeek.com/112888/3-ways-to-access-your-linux-partitions-from-windows/

[warm sleet]

There's no native drivers for ext4

there used to be one for ext2

And the modern variant of ext2fsd

[winter thorn]

Yep, it's a helper program that needs to run in order for it to work. Sadly.

[warm sleet]

can only read ext4, not write.

@winter thorn thanks to windows' shitty filesystem and driver layout yeah

[fickle kite]

@warm sleet
Unfortunatly I have to work with it since this is school and I have to use it, can you help me though with this problem

https://stackoverflow.com/q/66903779/13484019

[warm sleet]

@fickle kite https://unix.stackexchange.com/questions/93359/the-cp-option-to-the-java-command

in this case cp stands for Class Path, which is another location java will search to find the class files as they are needed by the program.

from the stack overflow error: Exception in thread "main" java.lang.UnsatisfiedLinkError: no gluegen-rt in java.library.path

you have to pass -cp /path/to/gluegen-rt.jar to the program

and if you are using JNI, like in that example

[fickle kite]

should i write this in my main class or what?

[warm sleet]

you may have to load the native libraries with System.loadLibrary()

@fickle kite no

-cp is a parameter for the java vm

[fickle kite]

im a newb where do i exactly write it

[warm sleet]

when you launch a java program

you have to pass the library path

usually this would look something like:

java -cp /path/to/libraries com.example.Main

this runs the main function in com.example.Main and has the library path you passed with -cp

[fickle kite]

i use launch4j to wrap the jar into an exe should i write that in the command line args place?

[warm sleet]

idk what launch4j is, but probably yeah

@fickle kite don't you have a teacher??

I mean, blueJ is horrible enough as it is

I expect a teacher to help you out

[fickle kite]

yeah but this is not part of the class i just want to make into a standalone

[warm sleet]

@fickle kite you can make standalone executeable .jar files

all you need to do is provide a manifest

this manifest has the class name of your main class

when you then execute the jar file

the java vm will read the manifest and start executing the main function you point at

not sure what you need launch4j for

[fickle kite]

i just used it so i can see the error messages bc when i open the jar nothing happens

[peak acorn]

Woah

you can just drag txt files and stuff into discord now and u can actually see it

like so

[midnight wind]

yep

[peak acorn]

i just learned about that oday

when did they add it

[midnight wind]

like 2 days ago

[warm sleet]

this is microsoft

suggesting features

for eventual merger

@midnight wind I wonder how it would handle markdown files

boo.

where's my syntax highlighting

[midnight wind]

just text

[warm sleet]

@midnight wind is it? https://i.imgur.com/GuUGnRh.png

[midnight wind]

oh like that

[warm sleet]

it only does like

the basic stuff

[midnight wind]

yep

[warm sleet]

so

Booo

@midnight wind that guide basically set up a bridge network

and has you install influxdb

[midnight wind]

for what?

[warm sleet]

sensor system

for in a car

realtime readouts of the onboard computer

@midnight wind most cars have one of these ports:

[midnight wind]

ah

[warm sleet]

its usually on driver's side under the steering wheel, next to the fusebox

That's called OBD2

and it runs up to two CANbus data lines

This is for example what the cruise control stick uses to signal the engine to speed up

but you can read all kinds of diagnostics from this

we were only interested in speed

we had installed accelerometers in the car

and the idea was to calibrate the system

so you could detect if the car's suspension was worn out

from how rough it drives

but its basically this:

one guy driving, the other on his laptop with a raspberry pi xD

that was during development

[fleet geyser]

anyone knows SQL here?

[peak acorn]

I hate doing anything that isnt just the most basic possible queries

[dim lava]

pop quiz:
VHDL is a language that uses end X; to end blocks. If blocks are ended with end if;, case blocks are ended with end case;, process blocks are ended with end process;, architecture blocks are ended with end architecture;

Guess what for blocks end with?

[peak acorn]

im gonna guess end loop; cos its obviously not end for;

[dim lava]

that's it actually

it's so frustrating though

VHDL is so awfully inconsistent in little things like that and big things

it's worse than JS

the left shift sign extends the LSB

like WHAT

[peak acorn]

it kind of makes sense I guess because (hopefully) there is also while loop, and possible others

[wheat cobalt]

rate pls. Btw I'm noob so factor than in when you rate. Ping me when you got an answer, I tend to to forget messages :P

[storm plume]

ok boys i need some big brain people in webdev to help me

so basically im trying to get the data from material ui's textfield without using onchange or oninput because sometimes i have data filled in from querystrngs

and if the user doesnt tap on the prefilled data, then the data isnt stored in react's state

i need help someone ping me if they can help, thanks

[warm sleet]

@wheat cobalt what element is that? webkit or the buit in IE browser?

I know .NET has a "Webpage" UI element

[violet cipher]

I know SQL from a sysadmin's point of view.

[warm sleet]

@fleet geyser sup

OracleDB, MSSQL and MySQL

[hollow basalt]

people still ask to ask

[fleet geyser]

i already solved the issue

[warm sleet]

F

[hollow basalt]

F

[violet cipher]

Huh, I always wondered - How different is Oracle from the "mainstream" of MySQL / MariaDB?

[pliant siren]

Completely. Syntax is at times barely compatible once you go past very basic statements.

[warm sleet]

ANSI queries are fine in Oracle

but the schema definition Oracle is far more complicated

@violet cipher MySQL sucks

It barely supports ANSI Sql

MySQL lacks CHECK constraints, (Maria does add them)
The trigger and event mechanism was designed by morons. You can only have a single trigger on an event type

and the PL-SQL language extension is serviceable at best.

[violet cipher]

Okay, let me clarify, I still consider MariaDB to be MySQL. I mostly deal with that, and seeing how Maria is supposed to be fully compatible with the original MySQL server, only adding stuff atop, it feels like an almost the same thing.

[warm sleet]

Its not.

Most mundane things work. MySQL can accept CHECK constraints ,but doesnt enforce them

Maria does. but is incompatible with workbench tools.
And with every version of maria DB they move further away from MySQL

[violet cipher]

Its exactly why it exists - To fix stuff that MySQL did bad. To make it better. A sort of "I'll make my own RDBMS, with blackjack and hookers!"

[warm sleet]

Just ditch MySQL.

And use postgres or something

[violet cipher]

I'm not a programmer really, rather, a sysadmin. And man, there are still a ton of people that run on MySQL 5.6 and PHP 5

[warm sleet]

@violet cipher fire those people

if you are still running PHP 5.

[violet cipher]

It is slowly getting better. But still, many a people do.

Content development is more important than platform upgrade for them.

[warm sleet]

@violet cipher some of the more interesting things in Oracle is customized sequences

so instead of a PK that iterates from 1, 2, 3, etc

you can create your own sequence generator

[violet cipher]

Huh. Okay, I can imagine that being nifty.

What table engine does Oracle use? Something custom, or does it also use like... InnoDB?

[warm sleet]

I also know that Oracle has some powerful tools when it comes to scaling

[violet cipher]

Maria does too. Not so sure about MySQL.

[warm sleet]

maria uses a modified version of InnoDB

InnoDB is fast, can enforce PK and FK's and UNIQUE's

but cannot enforce CHECKs

if you want a blazing fast full text engine

you can use MyISAM

old engine of mysql

its supa fast

for binary search

but doesnt enforce any constraints.

[violet cipher]

Shh, we don't say that word out loud. Anytime we do, one huge table in that engine crashes and takes ages to check.

Its another thing that angers me - Customers who have their whole databases in myisam, then get angry when the main log table crashes and takes the next hour to become available, meaning their app cannot insert into it, and comes to a halt.

[warm sleet]

I only use MyISAM for logging purposes

where you dont really care about the data

[violet cipher]

And although innodb doesn't crash nearly as easily... When it does crash, it crashes hard. And is a total pain to restore 😄

[warm sleet]

just that its stored.

[violet cipher]

Yeah, that's what I'd use it for, too

[warm sleet]

@violet cipher I started using redis more and more xD

even more fine grained control over your data

and unrivalled by speed

duo core craptop can do 100k queries/second

its a hash database, completely in memory

[violet cipher]

Redis is amazing for key-value storage. And is blazing fast, that is true. But can easily eat up a ton of memory, and isn't too fit for huge datasets as it keeps all the values in memory.

traditional rdbms have no issue with loading data off disk.

[warm sleet]

@violet cipher you know what is even faster? :D

https://keydb.dev/

[violet cipher]

Hmm...

Huh, okay, didn't hear about this one.

[warm sleet]

Compatible with redis

they made some of the routines multithreaded

simple lookups are orders of magnitude faster

@violet cipher who needs caching amirite? :D

[violet cipher]

Yeah, like, who cares about a CDN with a complicated 3-level caching. My origin server can handle the whole of global traffic lol

[warm sleet]

You can always do clustering

[violet cipher]

Or loadbalancing. A single IP can lead to a lot of different machines.

BGP is your friend.

[warm sleet]

mhm

@violet cipher honestly though, I need strong data integrity and quality in my DB

I would probably be using MS-SQL

Oracle requires me to sell one of my kidneys

and MS-SQL Server for linux runs on docker just fine

[violet cipher]

MS-SQL is something I never really dealt with. As it's a predominantly Windows thing.

[warm sleet]

Yeah, but it is actually a very nice database

Queries are sane

and you can easily write complicated constructs

there's no "Gotchas"

[naive terrace]

is there a way I can detect my phones proximity to my bed?

and if my phone is at home as a whole?

(iphone). I'm thinking I can use bluetooth to detect if home, since wifi pings are iffy when the screen is locked. Don't know how to do proximity to my bed though

[naive terrace]

I'd go for postgres if I I wanted SQL, otherwise i'm personally a fan of mongo

[warm sleet]

@naive terrace Mongo

That's the database in my nightmares

[naive terrace]

https://www.youtube.com/watch?v=b2F-DItXtZs yes I get the memes

[warm sleet]

Document storage the slowest of its kind

lol 'impotence mismatch'

I recently looked into graph db's

[naive terrace]

I haven't really had issues with it. But I still try to avoid MS-SQL and would go for something like postgres over it

[warm sleet]

Graph DBs are pretty cool

they are ACID compliant

and non relational

[naive terrace]

I tried neo4j once

it's.... very different

[warm sleet]

yep

but it is transactional, atomic and consistent

and scales by sharding

doesnt really matter what node is on what cluster

[naive terrace]

influxdb is pretty cool too to work with stuff like grafana

[warm sleet]

Ah yes

if your primary key is time

influx is your friend

[naive terrace]

yep

[warm sleet]

@naive terrace I've used influx as a frontend for data analysis before lol

I worked for a company that did telemetry

and these devs wrote a nice little graph module for the frontend

but they did all their calculations such as "average"

on the browser (frontend)

[naive terrace]

got any ideas on how I can do this? 😛

[warm sleet]

So I argued with them, that downloading 1.5million measurepoints is stupid

[naive terrace]

oof yeah

[warm sleet]

@naive terrace BLE

@naive terrace yeah not only

1080p screens

can at most display 1080 points.

1920

[naive terrace]

well I figured they did client-side calcs and averages, did they not?

[warm sleet]

if you want to be technical

@naive terrace yeah.... because they just did a SELECT from the measurements table in SQL

which returned a whole series for 1 measurepoint

the objects we had telemetry for

often had, 20 or even 30 measurepoints

with 15 minute intervals

[naive terrace]

also I can get bluetooth strength? I figured that, but that'll only detect distance from the rpi I've got, can't really position the phone in a specific region

[warm sleet]

@naive terrace BLE can estimate distance

you can also use wifi signal strength

[naive terrace]

that's still a radius though isn't it?

[warm sleet]

if you sniff for MACs

[naive terrace]

no I can't use wifi because iphones suck 😆

[warm sleet]

@naive terrace walls would make your measurements inaccurate

@naive terrace my solution btw for their problem.

[naive terrace]

if my iphone isn't unlocked it will only sometimes (like 5% of the time) respond

[warm sleet]

When the user opens the graph viewer

the backend pushes the entire dataset into influx

and exposes a backend URL to the frontend can use to query directly from influx (through a proxy)

[naive terrace]

that's still a lot of data to be pushed somewhere

[warm sleet]

Mh not really

[naive terrace]

or is influx constantly updated as the backend gets more data?

[warm sleet]

data ingest is once/day

on a schedule

no, they didnt want to move away from SQL

[naive terrace]

ok so influx is updated w/ that ingest

[warm sleet]

so instead, I use influx as a cache

[naive terrace]

I see ok

[warm sleet]

and let influx do the average calculations

the result was, 5-10kb response blocks, instead of 150MB of json

the graph viewer would use around 2GB ram

xD

[naive terrace]

geez

[warm sleet]

yeppers

[naive terrace]

no thanks

[warm sleet]

Influx is fast in that regard

ever try to do rolling average calculations in SQL?

with scalable resolution?

[naive terrace]

nope

[warm sleet]

have fun with timestamps

in influx, you can just say: I want a 5 minute average from X to Y

and a step size of 30 minutes

so you get measurements every 30 minutes, of a 5 minute rolling average

this way you can look at year's worth of data to analyze, without blowing up your PC

@naive terrace they had other issues, such as data ingest with synchronous SQL queries.

If the DB timed out or locked up, data ingest would loose data.

I got rid of that. replaced it with AMQP.
The ingest creates batches and sends them to the exchange

then, another worker process takes these batches and processes them

only when it is confirmed that the insert succeeded, does it remove the batch

if an error occurred, the system pushes the message to another queue, for the developer to look at

the developer fixes the issues, and moves the messages back to the main queue to be processed again

https://zeromq.org/

[naive terrace]

Yep makes sense

[violet cipher]

I want to officially thank you for bringing this video to my attention. I've been laughing here like mad.

[fleet geyser]

anyone here knows how to setup calamares installer on ubuntu 20.04 lts?

i tried but i can't seem to find any kind of guide on setting it up, the offical docs has guides on deployment, compiling and end-user guide

[naive terrace]

but mongodb is web scale.

[warm sleet]

@naive terrace nice buzzwords

whats next? we all have to use blockchain? xD

[fleet geyser]

probably 😂

[warm sleet]

https://www.youtube.com/watch?v=bzkRVzciAZg

[naive terrace]

hope you saw the video otherwise i'll look stupid xD. uhhh yes. blockchain on web scale sharded nosql database using machine learning AI deepfake uhhh i'm out of words

[warm sleet]

Apache is still garbage.

There's no reason to run apache

[fleet geyser]

yee

[warm sleet]

use nginx ffs

[fleet geyser]

nginx is better than apache

[naive terrace]

nginx ❤️

[fleet geyser]

its a fact

[warm sleet]

its web scale

[fleet geyser]

tho more websites still use apache

boomer time

[warm sleet]

most people that run apache

[naive terrace]

WeLL i UsE iis!!

[warm sleet]

just want a LAMPP stack

to run wordpress

[naive terrace]

I hate wordpress, but yes that sounds accurate

[fleet geyser]

i use Microsoft Web Server

🤣

2003

😂

[naive terrace]

isn't iis microsoft web server?

[warm sleet]

IIS yes

Internet information server

[fleet geyser]

idk i'm just kidding xddd

[warm sleet]

IIS' config is a mess

[naive terrace]

xD I've never touched it, never wanted to touch it

[warm sleet]

its pseudogarbage GUI crap + web.xml

if you are using .NET use kestrel.

big application servers to host your apps in are a bit old fashioned

[naive terrace]

with .NET... .never used it never want to touch it. However I have had the pleasure of working with it by building pipelines for clients 😦

[warm sleet]

@naive terrace C# is actually a very fine language

its just the standard library and the package ecosystem that stinks imo

[naive terrace]

yeah C# itself is fine

I just strongly dislike the ecosystem

[warm sleet]

I just got used to maven

and nothing beats maven

[naive terrace]

yes! thank you!

java stinks but i'll take java / maven over C# for this reason

[warm sleet]

reactor projects, automatic dependency tree building

fucking love it

I tried hosting a nuget server

literally impossible

[naive terrace]

I've heard you can use maven w/ C# but never looked into it

[warm sleet]

either artifacts work, and you dont get debug symbols

[naive terrace]

I don't know how mature those plugins etc are either

[warm sleet]

or artifacts work + debug symbols work

but now debug symbols for stdlib are missing

[naive terrace]

I haven't dived into nuget enough to know, but it looks a mess

[warm sleet]

@naive terrace Plexus compiler in maven supports like 10+ languages lol

There are C++ projects built with maven

https://i.imgur.com/SQW1NI6.png

https://codehaus-plexus.github.io/plexus-compiler/

[naive terrace]

i'll have to look into it. I've only used maven w/ java

My main language though is python

I only use java when doing minecraft plugins

[warm sleet]

hehe

@naive terrace I actually started at young age, doing C#

implemented RSA encryption

crude implementation

and then I stumbled on minecraft modding

and went hardcore into java

[naive terrace]

heh

[warm sleet]

the C# stuff was just to play around

@naive terrace eventually the whole plugin building got a bit out of control
https://i.imgur.com/1QoTKDt.png

Thats a full suite to run a synchronized multiserver instance with bungee & spigot

synchronized profiles and chat across

with backend API and user lookup features xD

[naive terrace]

nice, I've started on one myself, not super mature yet

[warm sleet]

@naive terrace https://api.knockturnmc.com/online

:D

[naive terrace]

I mean sure but then it's not me building it 🙂

[warm sleet]

@naive terrace inventory saving is relatively easy.

you can use the BukkitObjectOutputStream to turn things like ItemStack[] (inventory) into a byte[]

Chat was implemented with redis

[naive terrace]

mine is geared towards minigames / adventure games so inv saving isn't as big of a thing for me

[warm sleet]

Ahh yes

so thats why I wrote this project

[naive terrace]

menu's however 😄

[warm sleet]

so other devs can use the roleplay data from our database

without knowing how 2 sql

[naive terrace]

haha yep. I plan on having a web console too

[warm sleet]

if you let noobs write sql

noobs that have no idea about asynchronous code

you end up with people doing queries in the event loop

crashing a server

[naive terrace]

neither does minecraft 😆

[warm sleet]

https://i.imgur.com/0xljqM6.png

Quite proud of the amount of APIs that we have now ^

[naive terrace]

if you do allow them to do anything of that sort you thread it and return a future or something

[warm sleet]

@naive terrace all the profile data is loaded from SQL, and saved on logout

anything they need to push to DB immediately, they HAVE to do asynchronously

the SQL connection pool does a thread check before it hands out a connection

if the thread = main thread

it raises exception

[naive terrace]

for loading data I stole an idea from hypixel where I use limbo 🙂

[warm sleet]

limbo

?

[naive terrace]

player connects, proxy puts them in a limbo, does all the connection details / profile async

then redirects to final destination

[warm sleet]

That's what I do too

I call it the voidworld

if you move between two servers

it sticks you in void, until the server has saved

it gives a go-ahead to the proxy

and then it moves the player to their destination

[naive terrace]

yep. Limbo also doubles if a connection fails or a fallback etc... many uses

so I load up a small map there too

[warm sleet]

lol

its just a bedrock box in our case

[naive terrace]

you should never be connected long enough to see it

but if you do you get a nice msg telling you to do /lobby

[warm sleet]

oh

it disconnects you if you are in there longer than 5 seconds lol

[naive terrace]

oh. I hold onto the connection lol

usually if a backend service dies or a server isn't loaded up and there's no alternative

[warm sleet]

we have a hub server as fallback

the void worlds are a nessesary evil, because the profiles used to be single-server

[naive terrace]

if there's an infraction or the profile can't load on first join thenyes it kicks

[warm sleet]

and only saved on logout, so I needed a placeholder server

[naive terrace]

I've thought about building a git-like structure for saving profile data so it can have saves from different games / states at the "same time" which eh... but what I really want are the branches / be able to see a profile history

[warm sleet]

@naive terrace there are specialized event databases for this

where you can have a data aggregate through time

[naive terrace]

that'd be cool, i'll have to look into it

if you really hate yourself player.yml and use actual git 😆

[warm sleet]

https://ksqldb.io/

Such as this ^

[naive terrace]

oooh i'll have to look into this

[warm sleet]

@naive terrace this is the kind of DB you'd use for things like parcel tracking

https://i.imgur.com/n1IQYQ7.png

[naive terrace]

I do like event-driven processes

[warm sleet]

@naive terrace if you like java and event driven

you should have a look at scala, with Akka

[naive terrace]

no no I like python and tolerate java 😄

[warm sleet]

https://pykka.readthedocs.io/en/stable/

Akka for python ^

Its an actor model

for event driven programming

[naive terrace]

ooh

and I assume I can interrupt events and have the events react to interrupts?

[warm sleet]

https://pykka.readthedocs.io/en/stable/quickstart/#the-actor-implementations

The idea is that you pass a message to an actor

and the actor then acts on it

it can either emit another message

[naive terrace]

ok yep

[warm sleet]

or terminate

https://i.imgur.com/pG4GUAP.png

Its a pretty useful construct

Its a spin on functional event driven programming.

[naive terrace]

I will look into this as well, for some iot stuff i've sort of built my own with threading & interrupts

this is less event driven though and more task-based

[warm sleet]

@naive terrace the cool thing about actors

is that you can tell them to do something

in two ways

Either: Call and forget

or Call, and wait for callback

in Pykka

they call this tell and ask

[naive terrace]

can I call, and if another event is triggered interrupt a named event?

[warm sleet]

Asking, will return a future

telling will return nothing

[naive terrace]

e.g. i've got a event that's a loop that's cycling a neopixel for example, and if a config updates, I want to interrupt it so the event will die or refresh the config

[warm sleet]

you're using python to control a neopixel?

shouldnt that be some MCU code?

[naive terrace]

lol yeah. I've also got some phillips hue bulbs

so I can do both from the same application 😛

[warm sleet]

@naive terrace event loops should only really be on your control station

it takes incoming requests

and fires off some actor to deal with it

done.

so you can then soley focus on the actor implementation

[naive terrace]

yes this makes sense for the mc network code stuff

not sure if event driven is what I want for the lights

although if I can schedule events I might move to that model

[warm sleet]

event driven in terms of lights

[naive terrace]

and figure out the loop based tasks

[warm sleet]

would be

someone presses a button

thats an event.

some actor handles this

[naive terrace]

yep or hour before sunset

[warm sleet]

that's a timer

another event

[naive terrace]

but a task or an actor might be blink the light bulb forever

dumb example, but same idea

forever or until interrupted

[warm sleet]

yeah, so you'd have an actor that first decodes the instruction, like you press a button

and it looks at what that has to do

then signals another actor, this other actor then sends idk, a network message to your bulb?

So you have an actor that is specialized in switching hue bulbs

and another that can drive your neo pixels

[naive terrace]

so each actor is sort of like a function

[warm sleet]

Yeah, its a functional paradigm

you only pass messages

so for example Event<Button1 was pressed> goes to some UserActor

[naive terrace]

yep makes sense I get that part

[warm sleet]

okok

:)

[naive terrace]

curious how I'd do infinite loops

[warm sleet]

You don't :)

[naive terrace]

where one loop might take 2-3 minutes

[warm sleet]

the actors themselves are part of a threadpool

and they halt execution if no job is available

the idea is that its concurrent and completely in paralel

so if some kiddo decides to spam the remote

it will not block until the hue bulb changed color

[naive terrace]

I mean the bulb will be freaking out a bit

[warm sleet]

Yeah, but think of it this way

the round-trip time

[naive terrace]

could I do cooldowns on the button press?

say 1 second

[warm sleet]

from button press, to decision, to signalling the Hue, and done.

if you do that sequentially

you're blocking the button input

because it is still waiting for the hue

this is why you'd have an interrupt loop on the button

and the actor that acts for the button press, is asynchronous

[naive terrace]

yeah what youre describing is basically concurrency lol

that part isn't hard even with just python threading

[warm sleet]

That's the whole premise of the actor model :)

yeah, but actors help if you have a large scale system

[naive terrace]

but yes I do like the actor model overall and I want to use it 🙂

[warm sleet]

If anything, it is good practice.

[naive terrace]

going to look a pykka for sure

[warm sleet]

in scala you can use akka, and it has specialized syntax :D

[naive terrace]

I just don't know how i'm going to fit in 1 or 2 things into this model

everything else would work so much better with this

[warm sleet]

so you can do actor!someFunction()

or actor?someFunction()

tell/ask

@naive terrace if you want to take this actor and message construct to the next level:

https://www.erlang.org/

this is what is often used for realtime communication systems and such

that have to be incredibly reliable and high throughput

erlang's own philosophy when dealing with errors: let it crash

which took me about 2 weeks of practice to understand. And then I threw erlang in the trash. Because my brain does not understand the functional paradigm

[naive terrace]

lol

I think i'll start with pykka

[vast mulch]

uhm

do you guys think sql injection testing a random website may be illegal?

whitehat style to inform them their site is not secure.

[dreamy herald]

Yes, absolutely

Actual whitehats get permission first.

You could get in serious trouble in the US doing that to an organization that doesn't have a sense of humor.

And many other nations too, I'm sure.

[violet cipher]

Absolutely, but people still do that. Or rather, bots do.

Its like asking if it'd be illegal to pick random people's locks to let them know afterward that their locks are weak.

Unless a company has a bug bounty program

[rancid nimbus]

There was a story where this hacker decided to hack the US president. He successfully gained access to his Twitter and proved it to authorities and he didn't get in trouble. He did not get in trouble because his intentions were "good". https://darknetdiaries.com/episode/88/

[dreamy herald]

Oh, people definitely do it. I just want to make sure anyone thinking of it knows the risks first.

Just because some people get off doesn't mean you definitely will.

[rancid nimbus]

I am with you that just because it can be done and not get in trouble doesn't mean it is good. At the same time if you run into a suspected security vulnerability doing nothing is not the right thing either. At that point it is like if you see a building burning down should you report it.

[violet cipher]

It's one thing to just stumble upon a bug, and something entirely different to go out of your way and attack an app to see if it breaks

I work in a server hosting and management company. We were once actually contacted by a freelance hacker asking if we had any bug bounty programs. We did, in the end, offer to cooperate, but before he began working, he did ask us. That was nice of him.

[rancid nimbus]

I am not saying that trying to find exploit is good, but showing what the court of law thought since legal stuff can end up being case based. It might not work that way in the UK where he in the story was from. What you described with asking the company if you can try attacking and only attack with properly authorized permission, is the best solution.

[warm sleet]

@rancid nimbus Yeah 2nd dutch person to break into that lol

the first one got in by accident

he was also dutch

yourefired isnt exactly a good pw

[nocturne galleon]

how do you optimize a python program to spend less time?

[dire carbon]

anyone know a library for C to accept the "∩" character?

[warm sleet]

isnt that just unicode?

you can do those literals

https://www.compart.com/en/unicode/U+2229

UTF-8 equivalent is: 0xE2 0x88 0xA9

@dire carbon http://www.cogsci.ed.ac.uk/~richard/utf-8.cgi?input=0xE2+0x88+0xA9&mode=bytes

Its just character encoding

and thus in code you can use this: https://en.wikipedia.org/wiki/C_string_handling#Constants_and_types

[dire carbon]

the thing I was trying was to print this in conosle, but how I can do what you are talking?

[warm sleet]

@dire carbon what is the output of that program then?

[dire carbon]

the stadistic formula with the 3 char

[warm sleet]

char *mbs = "£100 π";

You have to make sure that your locale is set to LC_ALL

setlocale(LC_ALL, "");

printf prints bytes

so what you can do instead

is a literal char array: wprintf(L"ο Δικαιοπολις εν αγρω εστιν\n");

note the capital L in front of the string

[dire carbon]

but then I should search for a thing to insert in that ""?

[warm sleet]

setLocale just configures the character encoding

and characters like the one you are trying

are multibyte characters

normal ASCII characters are 1 byte (original ansi was actually 7 bits)

if the 8th bit is high, then you can attach some more bytes at the end

to extend your character encoding

this is what UTF-8 is.

its backwards compatible with ASCII.

@dire carbon it is up to the program that interprets the data, on how to display it. in this case your shell. which is configured by the locale

and wprintf can interpret multibyte characters

@dire carbon explained on a napkin: https://www.youtube.com/watch?v=MijmeoH9LT4

This pretty much takes you through the history of how it all works

[violet cipher]

Guys? A little shot in the dark, but are any android experts here? I could use a few pointers - I'm trying to dump the complete ROM image of my phone, but as Android went to a dynamic partition scheme from 10 onwards, I'm kinda stuck.

I managed to dump the super image, but no idea how to extract it now...

[dire carbon]

I understand the theoretical part that you are explaining, and I think I understand what you are trying to tell me, but I do not know how, sry if I sound so noob in this

[warm sleet]

@dire carbon have you never programmed before?

Because C might not be the best language to start with

Its very near the hardware and doesnt really do anything for you

You really need to know what you are doing

[violet cipher]

I'd just recommend avoiding special characters and sticking with just ascii chars. Doesn't much matter what language one uses, unicode is just extra hassle in every language.

[warm sleet]

yeah but if you want to print a math expression

you kinda want UTF-8

[dire carbon]

pointers, funtions, structs and dinamic memory is what I know for now, and the use of some lib

[violet cipher]

Oh... Yeah.

[warm sleet]

@dire carbon basically, printf just interprets that was single byte characters

but wprintf prints wide characters too

like the couple thousands of characters that exist

in languages like C#

all strings are UTF-16 by default

aka Unicode

That even does emoji's

https://www.emojicode.org/

^ 🤣

[dire carbon]

well, so I think I'll research a bit, thanks for the help

[violet cipher]

...I'd take brainfuck anyday over... that

[warm sleet]

https://github.com/justinmeza/httpd.lol/blob/master/httpd.lol

I like how the line ending of a statement is MKAY

[warm sleet]

@dire carbon did you include locale.h ?

[dire carbon]

nope

now yes and I have 2 new erros

[warm sleet]

cool

and they are ?

[warm sleet]

wat

im booting my laptop

inb4 this is some windows bullshit

[dire carbon]

so if I do it in Linux that's it? (I have it also)

[warm sleet]

Yeah, well I dont know how C on windows handles this lol

I've only ever done C on linux

[dire carbon]

a wise man

[warm sleet]

Like, windows to me is consumer shit that you cannot develop on sanely.

I write enterprise stuff, not games

[dire carbon]

well

I have it right now

now it works well, thanks a lot men

[warm sleet]

/home/crystal/Projects/untitled/cmake-build-debug/untitled
magic character: ∩
Process finished with exit code 0

#include <locale.h>
#include <wchar.h>

int main(int argc, char *argv[]) {

    setlocale(LC_ALL, "");
    wprintf(L"magic character: ∩");
}

@dire carbon for reference ^

[dire carbon]

thanks

now I have another problem, the ∪ character does not appear

[warm sleet]

What's with the %c ?

are you interpolating strings?

[dire carbon]

the 3 chars

yes, the idea when I get this funtioning is making a funtion that with the imput of 3 chars, prints the formula

[warm sleet]

/home/crystal/Projects/untitled/cmake-build-debug/untitled
magic character: A∩
Process finished with exit code 0

#include <locale.h>
#include <wchar.h>

int main(int argc, char *argv[]) {
    setlocale(LC_ALL, "");
    
    char a = 'A';

    wprintf(L"magic character: %s∩", &a);
}

pointerssss

this is why I dont use C most of the time xD

once you start building data structures, your brain just crashes

[dire carbon]

but the & is not necesary in a print right? only when is a scan

[warm sleet]

if you just do a its a value

but if you look at the method signature

https://i.imgur.com/c4gCAPM.png

it expects a pointer ^

so you can grab the pointer of a by prefixing it with &

[dire carbon]

well, so I think I have to change that

[warm sleet]

you can add your own behavior with a function, but this is how printf works

you just tell it where in memory the interpolated string is

with a pointer

otherwise, it would copy it to the stack

this is because of strings.

[dire carbon]

so bizarre because the program prints it well without &

[warm sleet]

you can give it a pointer to a char[]

and it happily substitutes strings too

char* is just the universal string pointer

usually NULL terminated

wchar_t is for wide characters

[dire carbon]

okey

[warm sleet]

@dire carbon I think..

you are using %c

and I was using %s

char and string

[dire carbon]

could be

[blazing agate]

Anyone have any experience with serialization? There is a javascript library that can turn a serialized array like this:

[246,11,105,96,7,39,8,53,119,89,0,0,0,0,1,0,0,0,0,0,234,48,85,0,0,63,42,27,166,162,74,1,0,0,0,0,72,195,1,2,0,0,0,0,168,237,50,50,49,0,0,0,0,72,195,1,2,0,0,0,0,72,195,1,2,0,0,0,0,0,0,0,0,8,87,65,88,0,0,0,0,0,225,245,5,0,0,0,0,8,87,65,88,0,0,0,0,0,0]

Into this:

{
    "expiration": "2021-04-04T00:44:38.000",
    "ref_block_num": 9991,
    "ref_block_prefix": 1500984584,
    "max_net_usage_words": 0,
    "max_cpu_usage_ms": 0,
    ...

And I have no idea how it does it, I'm trying to make a equivalent in PHP but I can't get the same results.
I think someone out there has already done it, but they are selling the code for £50 on a Chinese site and I cant buy it lol

[rancid nimbus]

You could write your own code to do that.

What format is that?

[blazing agate]

I've gone through the original js code in the eosjs library and the deserializeTransactionWithActions() function that does this, but I haven't been able to figure out exactly what is going on to be able to rewrite it in PHP.

[dim lava]

AES Galois-Counter Mode works in the very first test case I had 😎

This was the test case. C and T were the final answers

[blazing agate]

So I've figured out the main function that does the heavy lifting.
https://github.com/EOSIO/eosjs/blob/master/src/eosjs-serialize.ts#L685-L700
and it uses createInitialTypes function to get the initial list of types for it to decode, and each has its own deserialize function.

Hopefully I'll figure it all out given enough weekends 😆

[hollow basalt]

yea

better to understand the protocol than someone else's code

[blazing agate]

All of the docs for EOSIO for deserialization reference and point to eosjs

I'm sure I'll figure it out eventually or find a way to buy the code from that Chinese site, price isn't the issue its I don't have AliPay or WeChat

[blazing agate]

omg I'm getting it.
So the first attribute is type time_point_sec which uses getUint32() and passes it to a function to convert seconds since epoch to a date.
getUint32 uses the first 4 elements from the array and does left shifting. this.get() gets the next in the array each time.

    public getUint32() {
        let v = 0;
        v |= this.get() << 0;
        v |= this.get() << 8;
        v |= this.get() << 16;
        v |= this.get() << 24;
        return v >>> 0;
    }

246, 11, 105, 96
= 1617497078

export const timePointSecToDate = (sec: number) => {
    const s = (new Date(sec * 1000)).toISOString();
    return s.substr(0, s.length - 1);
};

= 2021-04-04T00:44:38.000

Now that I've figured out the what and the how, this makes so much more sense now.

[arctic tusk]

Quartus? are using VHDL or Verilog?

[arctic tusk]

it looks like you are running ModelSim

[dim lava]

Modelsim and Verilog + SystemVerilog. And yeah i use Quartus to program it to the fpga and for the rtl viewer

Although i also use a lot of VHDL in other contexts

[arctic tusk]

@dim lava What dev board are you usin?

[dim lava]

DE-10 and also i have another MAX10 @arctic tusk

[dim lava]

the second one is made by a local company so you'll almost certainly have never heard of it lol

[nocturne galleon]

hey can someone help me make a button in html/css clickable? ive tried like 4 things but the button isnt clickable i want it to redirect to a link

[warm sleet]

https://www.w3schools.com/tags/ref_eventattributes.asp

[violet cipher]

<input type="button" value="Button text" onclick="window.location.href='url'">

[wide cave]

You can also just wrap the button in an anchor tag.

[last lance]

Python has a super powerful system for sorting through strings, so you could take text like this 2/4/2020 and turn it into

Today is day 4 of February in 2020

Discord style rank card made using python with variables and system to aromatically prevent it breaking

I used pygame to generate it and used the image.save() function

[clear thistle]

damn
i didnt even know that lol
i should look into that
wouldve been helpful for me if id known that about 9 months ago
wouldve saved me heaps of time

[rancid nimbus]

Can it convert the time format to the local time format automatically? As in date formating translation. In different countries there standards put the date time text in different orders. I have seen this done in a c program before (likely a library too).

[warm sleet]

@rancid nimbus https://pypi.org/project/python-dateutil/

standard library for handling datetime/timezones/timespans, including the most common variant: ISO 8601

[hollow basalt]

i still use datetime

[arctic tusk]

Nice. I have DE0 Nano and DE10-Lite

[last lance]

I'm not super technical with it, I don't know

[last lance]

I can send some example code if you need me to

`#modcolocko's PNG Generator
import pygame

#File Settings
filename = "Filename"

#Color Settings
background = (35, 39, 42)

#Image Settings
width = 100
height = 100

#Draw Window
win = pygame.display.set_mode((width, height))
win.fill(background)
pygame.init()

#Draw Objects

filename = f"{filename}.png"
pygame.image.save(win, filename)
print(f"file {filename} has been saved")
pygame.quit()`

Dm me if you need any help

[languid minnow]

Have at it lads,
https://github.com/Yorisoft/puppet-purchase

[warm sleet]

@languid minnow Scalper's tools ?

[last lance]

fuck python, now c is my best friend.

hey guys check out the new version of the python vector generator https://github.com/ModcoLocko/Vector-Graphics-Generator

[languid minnow]

Now available for normies

[hollow basalt]

Normies but you sent it to #development

[peak acorn]

imo its better that the tools scalpers use are open source and available

if automated scalping is going to happen no matter what, its better that everyone has access to safe copies of the code.

[stray jacinth]

@languid minnow they're in stock here, but hella expensive! I guess one way to combat scalpers is to just raise the retail price to scalper levels 🤷‍♂️

I could get a 3090 right now, but it'd cost 2700 euros, 1000 more than what the same model went for at launch. Not paying that.

[ebon viper]

I built something that I like using Python, is there anyway I can put it on an app or website?

given that apps are in swift or java, and websites are in javascript

[warm sleet]

@ebon viper depends

You can create web applications with python justfine

but in this context, your python process would be running on a server, exposing HTTP

[midnight wind]

There are python web frameworks

Flask I think

Django

[native helm]

hey, I'm pretty new to docker, but am messing around a bit with it and is wondering, in a docker-compose I plan to setup 2 mariadb services and 1 phpmyadmin to manage both, but which of the two MYSQL_ROOT_PASSWORDs will it use in something like this:

db_private:
  image: mariadb:latest
  environment:
    MYSQL_ROOT_PASSWORD: somepassword

db_public:
  image: mariadb:latest
  environment:
    MYSQL_ROOT_PASSWORD: someotherpassword

pma:
  image: phpmyadmin:latest
  environment:
    PMA_HOSTS: db_private, db_public

Or have I misunderstood the docs? To me it sounds like phpMyAdmin needs the root credentials on this page (Credentials section): https://hub.docker.com/_/phpmyadmin

[warm sleet]

@native helm my question to you is, why are you using phpmyadmin

[native helm]

testing purposes. quicker to troubleshoot wordpress development with phpmyadmin than console. but I rarely use it anyway, but just for testing stuff rn

[warm sleet]

@native helm are you sure it even supports multiple servers?

[native helm]

it does

[warm sleet]

@native helm oddly enough

their documentation specify multiple hosts and ports

but only a single user and pass combination

[native helm]

yeah

[rare dagger]

r

[warm sleet]

@rare dagger let me quickly whip up something

[rare dagger]

I want it to stay at 1-3 files

[warm sleet]

I can just create a .NET executable

powershell is really just that

its a small scripting language to run bits of .NET code

[rare dagger]

dude

like what?

for /f "tokens=1,2,3,4 delims=/ " %%a in ('sc queryex ServiceName ^|FIND "PID"') do set PID=%%c
taskkill /pid %PID% /t /f

This is 1 bit of code from internet

[warm sleet]

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Management;
using System.Text;
using System.Threading.Tasks;

namespace FindProcess {
class Program {
    public static IEnumerable<Process> GetChildProcesses(Process process) {
        var children = new List<Process>();
        var mos = new ManagementObjectSearcher(
            $"Select * From Win32_Process Where ParentProcessID={process.Id}");

        foreach (var mo in mos.Get()) {
            children.Add(Process.GetProcessById(Convert.ToInt32(mo["ProcessID"])));
        }

        return children;
    }

    static void Main(string[] args) {
        var children = GetChildProcesses(Process.GetProcessById(int.Parse(args[0])));
        foreach (var child in children) {
            Console.WriteLine(child);
        }
    }
}
}

🤣

[rare dagger]

aaa

wut

[warm sleet]

C# program

you pass it an ID, and prints all children

[rare dagger]

Hm. And can i use powershell for it

[warm sleet]

lemme see if it works

@rare dagger no, this API is a stupid mess

its written by idiots for idiots

[rare dagger]

ok wtf. i wanna feel how death feels like

(jk)

I didnt know that it would use different pid

each time

but ok

[warm sleet]

hold on

testing xD

[rare dagger]

What will happen after 1 minute i wonder

[warm sleet]

@rare dagger works..

sort of

E:\FindProcess\FindProcess\bin\Debug>FindProcess 4
System.Diagnostics.Process (Registry)
System.Diagnostics.Process (smss)
System.Diagnostics.Process (Memory Compression)

[rare dagger]

ehm

[warm sleet]

just need it to print only the ID

4 = system

has three children

[rare dagger]

idk what to do with thaat code

[warm sleet]

@rare dagger I can just compile it and give you an .exe if that's ok ? I can also provide you with the C# code

https://i.imgur.com/kjn8SG9.png

ngh is this waht you want?

[rare dagger]

I want it to get 1 PID and save it like %pidx%

so i can use it in cmd like idk kill

[warm sleet]

does it accept a list PIDs?

cus I can make it return a single line with commas

[rare dagger]

I need only 1 pid

[warm sleet]

yeah the code will return multiple

because its a list