a little suggest about busybee

[李俊良]

#ifdef BUSYBEE_SINGLETHREADED
void
CLASSNAME :: reset()
{
    typedef e::nwf_hash_map<uint64_t, uint64_t, hash> chanmap_t;
    m_channels = new channel[m_channels_sz];

As reset, it's used to destructing before constructing which is m_channels need check not null and delete before new channel[].