anchor.diff:  These functions are intended for use with HTTP server applications.
   
   |===
  -| <<nng_http_handler_alloc#,nng_http_handler_alloc(3)>>|allocate HTTP server handler
  -| <<nng_http_handler_free#,nng_http_handler_free(3)>>|free HTTP server handler
  -| <<nng_http_handler_get_data#,nng_http_handler_get_data(3)>>|return extra data for HTTP handler
  -| <<nng_http_handler_set_data#,nng_http_handler_set_data(3)>>|set extra data for HTTP handler
  -| <<nng_http_handler_set_host#,nng_http_handler_set_host(3)>>|set host for HTTP handler
  -| <<nng_http_handler_set_method#,nng_http_handler_set_method(3)>>|set HTTP handler method
  -| <<nng_http_handler_set_tree#,nng_http_handler_set_tree(3)>>|set HTTP handler to match trees
  -| <<nng_http_hijack#,nng_http_hijack(3)>>|hijack HTTP server connection
  -| <<nng_http_server_add_handler#,nng_http_server_add_handler(3)>>|add HTTP server handler
  -| <<nng_http_server_del_handler#,nng_http_server_del_handler(3)>>|delete HTTP server handler
  -| <<nng_http_server_get_tls#,nng_http_server_get_tls(3)>>|get HTTP server TLS configuration
  -| <<nng_http_server_hold#,nng_http_server_get_tls(3)>>|get and hold HTTP server instance
  -| <<nng_http_server_release#,nng_http_server_get_tls(3)>>|release HTTP server instance
  -| <<nng_http_server_set_tls#,nng_http_server_set_tls(3)>>|set HTTP server TLS configuration
  -| <<nng_http_server_start#,nng_http_server_start(3)>>|start HTTP server
  -| <<nng_http_server_stop#,nng_http_server_stop(3)>>|stop HTTP server
  +|<<nng_http_handler_alloc#,nng_http_handler_alloc(3)>>|allocate HTTP server handler
  +|<<nng_http_handler_free#,nng_http_handler_free(3)>>|free HTTP server handler
  +|<<nng_http_handler_get_data#,nng_http_handler_get_data(3)>>|return extra data for HTTP handler
  +|<<nng_http_handler_set_data#,nng_http_handler_set_data(3)>>|set extra data for HTTP handler
  +|<<nng_http_handler_set_host#,nng_http_handler_set_host(3)>>|set host for HTTP handler
  +|<<nng_http_handler_set_method#,nng_http_handler_set_method(3)>>|set HTTP handler method
  +|<<nng_http_handler_set_tree#,nng_http_handler_set_tree(3)>>|set HTTP handler to match trees
  +|<<nng_http_hijack#,nng_http_hijack(3)>>|hijack HTTP server connection
  +|<<nng_http_server_add_handler#,nng_http_server_add_handler(3)>>|add HTTP server handler
  +|<<nng_http_server_del_handler#,nng_http_server_del_handler(3)>>|delete HTTP server handler
  +|<<nng_http_server_get_tls#,nng_http_server_get_tls(3)>>|get HTTP server TLS configuration
  +|<<nng_http_server_hold#,nng_http_server_get_tls(3)>>|get and hold HTTP server instance
  +|<<nng_http_server_release#,nng_http_server_get_tls(3)>>|release HTTP server instance
  +|<<nng_http_server_set_tls#,nng_http_server_set_tls(3)>>|set HTTP server TLS configuration
  +|<<nng_http_server_start#,nng_http_server_start(3)>>|start HTTP server
  +|<<nng_http_server_stop#,nng_http_server_stop(3)>>|stop HTTP server
   |===
   
   === TLS Configuration Objects
  
positive.code: with TLS support.
  
  |===
  | <<nng_tls_config_auth_alloc#,nng_tls_config_alloc(3)>>|allocate TLS configuration
  | <<nng_tls_config_auth_mode#,nng_tls_config_auth_mode(3)>>|set authentication mode
  | <<nng_tls_config_ca_chain#,nng_tls_config_ca_chain(3)>>|set certificate authority chain
  | <<nng_tls_config_ca_file#,nng_tls_config_ca_file(3)>>|load certificate authority from file
  | <<nng_tls_config_cert_key_file#,nng_tls_config_cert_key_file_cert(3)>>|load own certificate and key from file
  | <<nng_tls_config_own_cert#,nng_tls_config_own_cert(3)>>|set own certificate and key
  | <<nng_tls_config_free#,nng_tls_config_free(3)>>|free TLS configuration
  | <<nng_tls_config_server_name#,nng_tls_config_server_name(3)>>|set remote server name
  |===
  
  
  
negative.code: 
  |===
  |<<nng_alloc#,nng_alloc(3)>>|allocate memory
  |<<nng_free#,nng_free(3)>>|free memory
  |<<nng_strerror#,nng_strerror(3)>>|return an error description
  |===
  