ptr->hosts[server_key].write_buffer_offset= 0;
ptr->hosts[server_key].read_buffer_length= 0;
ptr->hosts[server_key].read_ptr= ptr->hosts[server_key].read_buffer;
ptr->hosts[server_key].write_buffer_offset= 0;
ptr->hosts[server_key].read_buffer_length= 0;
ptr->hosts[server_key].read_ptr= ptr->hosts[server_key].read_buffer;