Method tryInitThreadID

include/brynet/net/EventLoop.hpp:432–438

        mTcpConnections.erase(fd);
    }
    void tryInitThreadID()
    {
        std::call_once(mOnceInitThreadID, [this]() {
            mSelfThreadID = current_thread::tid();
            mSelfThreadIDIsInitialized.store(true);
        });
    }

private:
#ifdef BRYNET_PLATFORM_WINDOWS