nem0

// LLM one-shots a deadlock - https://github.com/nem0/LumixEngine/issues/1534
// Claude Opus 4.5.

User: When I add a dynamic point light with shadows to a scene with a few objects and move the camera and objects for a while, the editor freezes. All worker threads are in this callstack
 	[External Code]	
>	studio.exe!Lumix::ConditionVariable::sleep(Lumix::Mutex & mutex) Line 54	C++
 	studio.exe!Lumix::Thread::sleep(Lumix::Mutex & mutex) Line 149	C++
 	studio.exe!Lumix::jobs::popWork(Lumix::jobs::Work & work, Lumix::jobs::WorkerTask * worker) Line 401	C++
 	studio.exe!Lumix::jobs::manage(void * data) Line 561	C++
 	[External Code]	

nem0

	bool pop(T& obj) {
		for (;;) {
			const i32 pos = rd;
			Item* j = &objects[pos % CAPACITY];
			const i32 seq = j->seq;
			if (seq < pos + 1) {
				// nothing to pop
				return false;
			}
			else if (seq == pos + 1) {

nem0

#include <urlmon.h>
#pragma comment(lib, "urlmon.lib")

bool download(const char* url, OutputMemoryStream& blob) {
	IStream* stream = nullptr;
	if (S_OK != URLOpenBlockingStream(nullptr, url, &stream, 0, nullptr)) {
		return false;
	}
	char buffer[4096];
	ULONG read = 0;

nem0

// only handles coplexity on top level, if you have a node with 1M children, you are out of luck
// changes in clipped parts are not detected, so if somebody deleted nodes in clipped, scrollbar is not updated until user actually scrolls
// scrolling and changes refresh the clipper == that part is as slow as no clipping at all
// only single list in BeginChild/EndChild is tested
struct TreeViewClipper {
	// persist
	float cursor_end = 0;
	float cursor_visible_start = 0;
	uint first_visible_index = 0;
	float last_scroll = 0;

nem0

void radixSort2(u64* _keys, u64* _values, int size) {
	enum { WORKERS = 10 };

	PROFILE_FUNCTION();
	profiler::pushInt("count", size);
	if (size == 0) return;

	Array<u64>& tmp_mem = allocRadixTmp();

	u64* keys = _keys;

nem0

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
using System.Runtime.InteropServices;
using System.Runtime.InteropServices.ComTypes;
using System.Text.RegularExpressions;
using System.Diagnostics;
 

nem0

 template <typename F>
    static void measure(float& avg, float& med, float& min, float& max, F&& func) {
      LARGE_INTEGER b, e, f;

      enum { ITERS = 10 };
      LONGLONG dur[ITERS];
      LONGLONG sum = 0;
      for (int i = 0; i < 5; ++i) {
        func();
      }

nem0

#include <cstdio>


template <typename T>
class Nullable
{
public:
	Nullable(T* _val) : value(_val) {}
	void operator=(const Nullable<T>& rhs) { value = rhs.value; }