Method setNumThreads

src/LinearMath/btThreads.cpp:670–695

		return m_numThreads;
	}
	virtual void setNumThreads(int numThreads) BT_OVERRIDE
	{
		// capping the thread count for PPL due to a thread-index issue
		const int maxThreadCount = (std::min)(int(BT_MAX_THREAD_COUNT), 31);
		m_numThreads = (std::max)(1, (std::min)(maxThreadCount, numThreads));
		using namespace concurrency;
		if (CurrentScheduler::Id() != -1)
		{
			CurrentScheduler::Detach();
		}
		SchedulerPolicy policy;
		{
			// PPL seems to destroy threads when threadpool is shrunk, but keeps reusing old threads
			// force it to destroy old threads
			policy.SetConcurrencyLimits(1, 1);
			CurrentScheduler::Create(policy);
			CurrentScheduler::Detach();
		}
		policy.SetConcurrencyLimits(m_numThreads, m_numThreads);
		CurrentScheduler::Create(policy);
		m_savedThreadCounter = 0;
		if (m_isActive)
		{
			btResetThreadIndexCounter();
		}
	}
	struct ForBodyAdapter
	{
		const btIParallelForBody* mBody;