Json::Value json_socket::recv_msg() {
char jsonsize_buf[4];
int s = recv(this->bsock_fd, reinterpret_cast<SOCKET_BUFFER_TYPE>(&jsonsize_buf), 4, 0);
if (s == 0)
throw PeerDisconnected();
else if (s < 0)
throw ConnectionError();
unsigned int jsonsize;
memcpy(&jsonsize, &jsonsize_buf, 4);
jsonsize = ntohl(jsonsize);
char *jsonstr = new char[jsonsize + 1];
int bytes_read = 0;
while (bytes_read < jsonsize) {
s = recv(this->bsock_fd, jsonstr, jsonsize, 0);
if (s <= 0) {
delete[] jsonstr;
if (s == 0)
throw PeerDisconnected();
else
throw ConnectionError();
}
bytes_read += s;
}
jsonstr[jsonsize] = (char)0;
this->last_jsonstr = jsonstr;
Json::Value root;
Json::Reader reader;
bool r = reader.parse(jsonstr, &jsonstr[jsonsize], root);
if(!r) {
cout << "Unable to parse input json: " << reader.getFormatedErrorMessages() << endl;
cout << jsonstr << endl;
delete[] jsonstr;
throw NotParseableJson();
}
delete[] jsonstr;
return root;
}
/*! \class TorcMediaSourcePeer
* \brief A singleton class to interrogate known Torc peers for media files.
*
* New peer connections are signalled by TorcNetworkedContext, at which point a subscription
* request is sent to the remote 'files' service.
*
* \sa TorcMediaSource
* \sa TorcMediaSourceDirectory
* \sa TorcNetworkedContext
* \sa TorcNetworkService
*
* \todo Add state tracking/connection logic (query services, subscribe, unsibscribe...)
* \todo Listen for TorcNetwork events (Torc::NetworkAvailable etc), though investigate why PeerDisconnected not working.
*/
TorcMediaSourcePeer::TorcMediaSourcePeer()
: QObject()
{
setObjectName("TorcMediaSourcePeer");
// listen for peer (dis)connection signals
if (gNetworkedContext)
{
connect(gNetworkedContext, SIGNAL(PeerConnected(QString,QString)), this, SLOT(PeerConnected(QString,QString)));
connect(gNetworkedContext, SIGNAL(PeerDisconnected(QString,QString)), this, SLOT(PeerDisconnected(QString,QString)));
}
else
{
LOG(VB_GENERAL, LOG_ERR, "No TorcNetworkedContext singleton to connect to");
}
}
