int
marshall(const Msg& inm, mutable_buffer<char> inb)
{
int newlen=inb.len()-HEAD_SIZE;
if(newlen<=0)
throw std::runtime_error("marshalling:: provided buffer is too small");
auto it = m_map.find(inm.type());
if(it==m_map.end())
throw std::runtime_error("marshalling:: message type not supported");
*(reinterpret_cast<int*>(inb.addr())) = htonl(inm.type());
int m_len = it->second->marshall(inm,mutable_buffer<char>(inb.addr()+HEAD_SIZE,newlen));
*(reinterpret_cast<unsigned int*>(inb.addr()+sizeof(int))) = htonl(m_len);
return m_len+HEAD_SIZE;
}
const_buffer(const mutable_buffer<Tp> &other)
: m_addr(other.addr()), m_len(other.len())
{}