void operator()(msgpack::object::with_zone& o, const std::unordered_multimap<K, V, Hash, Compare, Alloc>& v) const {
o.type = msgpack::type::MAP;
if(v.empty()) {
o.via.map.ptr = nullptr;
o.via.map.size = 0;
} else {
uint32_t size = checked_get_container_size(v.size());
msgpack::object_kv* p = static_cast<msgpack::object_kv*>(o.zone.allocate_align(sizeof(msgpack::object_kv)*size));
msgpack::object_kv* const pend = p + size;
o.via.map.ptr = p;
o.via.map.size = size;
typename std::unordered_multimap<K, V, Hash, Compare, Alloc>::const_iterator it(v.begin());
do {
p->key = msgpack::object(it->first, o.zone);
p->val = msgpack::object(it->second, o.zone);
++p;
++it;
} while(p < pend);
}
}
~GlobalAttributeDispatcher() {
//Make sure that all callbacks are de-registered.
assert(mCallbacks.empty());
}