==== mg_do_connect()

[source,c]
----
MG_INTERNAL struct mg_connection *mg_do_connect(struct mg_connection *nc,
                                                int proto,
                                                union socket_address *sa);
----
internals that need to be accessible in unit tests 

==== to_wchar()

[source,c]
----
int to_wchar(const char *path, wchar_t *wbuf, size_t wbuf_len);
----
Retur value is the same as for MultiByteToWideChar. 

==== mg_handle_chunked()

[source,c]
----
MG_INTERNAL size_t mg_handle_chunked(struct mg_connection *nc,
                                     struct http_message *hm, char *buf,
                                     size_t blen);
----
Reassemble the content of the buffer (buf, blen) which should be
in the HTTP chunked encoding, by collapsing data chunks to the
beginning of the buffer.

If chunks get reassembled, modify hm->body to point to the reassembled
body and fire MG_EV_HTTP_CHUNK event. If handler sets MG_F_DELETE_CHUNK
in nc->flags, delete reassembled body from the mbuf.

Return reassembled body size.