Method init

core/object/worker_thread_pool.cpp:815–854

#endif

void WorkerThreadPool::init(int p_thread_count, float p_low_priority_task_ratio) {
	ERR_FAIL_COND(threads.size() > 0);

	runlevel = RUNLEVEL_NORMAL;

	if (p_thread_count < 0) {
		p_thread_count = OS::get_singleton()->get_default_thread_pool_size();
	}

	max_low_priority_threads = CLAMP(p_thread_count * p_low_priority_task_ratio, 1, p_thread_count - 1);

	print_verbose(vformat("WorkerThreadPool: %d threads, %d max low-priority.", p_thread_count, max_low_priority_threads));

#ifdef THREADS_ENABLED
	// Reserve 5 threads in case we need separate threads for 1) 2D physics 2) 3D physics 3) rendering 4) GPU texture compression, 5) all other tasks.
	// We cannot safely increase the Vector size at runtime, so reserve enough up front, but only launch those needed.
	threads.reserve(5);
#endif
	threads.resize(p_thread_count);

	Thread::Settings settings;
#ifdef __APPLE__
	// The default stack size for new threads on Apple platforms is 512KiB.
	// This is insufficient when using a library like SPIRV-Cross,
	// which can generate deep stacks and result in a stack overflow.
#ifdef DEV_ENABLED
	// Debug builds need an even larger stack size.
	settings.stack_size = 2 * 1024 * 1024; // 2 MiB
#else
	settings.stack_size = 1 * 1024 * 1024; // 1 MiB
#endif
#endif

	for (uint32_t i = 0; i < threads.size(); i++) {
		threads[i].index = i;
		threads[i].pool = this;
		threads[i].thread.start(&WorkerThreadPool::_thread_function, &threads[i], settings);
		thread_ids.insert(threads[i].thread.get_id(), i);
	}
}

void WorkerThreadPool::exit_languages_threads() {
	if (threads.is_empty()) {