@programminginc - страница 2488

Till

Hi monkeys

Nohello

Anonymous

Hi monkeys

/warn toxic

Till

It's not code

Vlad

It isn't code

Till

Yes

Vlad

It's some bs from the terminal, kek

Till

@unterumarmung I feel tired about man's screenshots

Vlad

And what it is supposed to do?

Anonymous

@waldo336 Please share code via paste.ubuntu.com

Vlad

How?) Synchronized methods are too mainstream I guess.

Vlad

Or mutexes for that matter

Till

Wtf, I don't want download files on my perfect device

Till

Sorry, but I don't know JNI 😒, I really want help you, but I can't, oh sorry

olli

potential race condition? given the code I can't reproduce your issue

Anonymous

Sorry, but I don't know JNI 😒, I really want help you, but I can't, oh sorry

Till, stop lulzing

Vlad

potential race condition? given the code I can't reproduce your issue

It is explicitly told that you may not call jni interface from more than one thread at a time.

Vlad

Hope he's gonna get it))

olli

It is explicitly told that you may not call jni interface from more than one thread at a time.

It was a wild guess, since we can't reproduce the issue given the information we have. It would be fairly easy to test tho

Vlad

It was a wild guess, since we can't reproduce the issue given the information we have. It would be fairly easy to test tho

Yeah. You can just put locks and see if it works.

Vlad

This error could be anything really. But what it says is that you do smth like this: int& getInt() { int a; .... // some actions with a return a; // UB because you wiil access a variable with ended lifetime }

Vlad

You know it's easy to check. What if you will not get errors with locks?

olli

It is explicitly told that you may not call jni interface from more than one thread at a time.

where does it state this btw? I don't see how a reentrant function can't be executed multiple times concurrently...

Vlad

std::mutex jni_mut; .... void callNative() { // synchronized call { std::lock_guard<std::mutex> lock(jni_mut); jmethodID methodID = env->GetMethodID(surfaceClass, "mWTBStart", "()V"); if (methodID == nullptr) return; env->CallVoidMethod(surfaceObject, methodID); } }

Vlad

Formatting got funky but you got the point

Till

std::mutex jni_mut; .... void callNative() { // synchronized call { std::lock_guard<std::mutex> lock(jni_mut); jmethodID methodID = env->GetMethodID(surfaceClass, "mWTBStart", "()V"); if (methodID == nullptr) return; env->CallVoidMethod(surfaceObject, methodID); } }

Yeh, global mutex, so impressive

Vlad

Yeh, global mutex, so impressive

idgaf it's an example

Vlad

Is it your class?

Vlad

If so then make a gd operator

Vlad

Oh you're trying to copy a mutex?

Till

It's seem like you try copy mutex, incredible

Vlad

It's seem like you try copy mutex, incredible

fantastic

Vlad

Also are you sure that mutex should be in an object?

Vlad

I guess what it says that you must be attached also

Vlad

Also get rid of deleted local reference abuse

Till

Object was destroyed before👍

Till

Yeah, pls watch life time of yours objects

Vlad

How does creating an object makes you use a deleted reference?

Till

I can't recognize text on photo, sorry, but I don't read it

Till

It's another text ...

Vlad

It says that it couldn't find your gd class. Doncha see?

Till

Just rewrite code

Vlad

It says that it couldn't find your gd class. Doncha see?

Have you tried including your package and stuff?

Till

You need to pay attention to lifetime objects

Till

I think we can't help you enough

Till

Just debugging help you

Vlad

printf"s for the rescue

四只老虎化黃油

Is it important for a c++ programmer to know how to use gdb?

Vlad

"Whatever bs that outputs to the console"

Vlad

Is it important for a c++ programmer to know how to use gdb?

It isn't a rocket science. But debugging you will for sure.

四只老虎化黃油

It isn't a rocket science. But debugging you will for sure.

Okk thanks

V01D

I spent 10 min trying to fix a compile error, turns out I missed the semicolon for the function declarition in the header file. Sucks to suck 😂

Anonymous

I feel you😂😂

V01D

And all gcc says is: use a '=', ':', ';', or attribute before void main - Like REALLY?

klimi

Cool?

klimi

I just like the document structure...

Accel

Cool?

🤔

Vlad

What's that?

klimi

What's that?

Looks like some magazine

Accel

export module nice

四只老虎化黃油

After overloading operator + for a class, do we automatically get operator += working?

Vlad

After overloading operator + for a class, do we automatically get operator += working?

No. They are semantically different.

四只老虎化黃油

get it, thanks!

Vlad

Thx for clarifying

Vlad

So it was yours user code fault after all?

Dima

lol

Xam

ZZ ‘BG ZZ🥱🥱🤓1n'21'221kh k'2h

Anonymous