Polling an unconnected or listening PTP socket for SEND took the PDP
path in postoffice_can_send. For an opened connection that created a
PDP session and stored it as the socket's handle, so its sends and
receives failed afterwards (pspautotests net/adhoc/pair/ptppoll). A PTP
socket that isn't established now just isn't writable.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
RelayTransport, with the aemu_postoffice helpers only it uses, goes to
AdhocTransportRelay.cpp, and P2PTransport to AdhocTransportP2P.cpp. The
helpers they share with sceNetAdhoc.cpp are declared in
AdhocTransport.h. Moved as they were.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
