mirror of
https://github.com/saitohirga/WSJT-X.git
synced 2024-12-24 11:40:31 -05:00
Make UDP message handling version mismatch tolerant
By providing safe defaults for expected input fields that are not present in messages from older version senders, it is now possible to mix versions of clients and servers. This relies on fields never changing meaning or content, new fields may be safely added to the end of existing messages. Merged from the wsjtx-1.5 branch. git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@5338 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
This commit is contained in:
parent
2e08443d08
commit
0c56d22796
@ -38,11 +38,13 @@ public:
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closedown ();
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closedown ();
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}
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}
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enum StreamStatus {Fail, Short, OK};
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void parse_message (QByteArray const& msg);
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void parse_message (QByteArray const& msg);
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void pending_datagrams ();
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void pending_datagrams ();
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void heartbeat ();
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void heartbeat ();
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void closedown ();
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void closedown ();
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bool check_status (QDataStream const&) const;
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StreamStatus check_status (QDataStream const&) const;
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Q_SLOT void host_info_results (QHostInfo);
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Q_SLOT void host_info_results (QHostInfo);
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@ -91,7 +93,7 @@ void MessageClient::impl::parse_message (QByteArray const& msg)
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//
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//
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NetworkMessage::Reader in {msg};
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NetworkMessage::Reader in {msg};
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if (id_ == in.id ()) // for us
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if (OK == check_status (in) && id_ == in.id ()) // OK and for us
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{
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{
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//
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//
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// message format is described in NetworkMessage.hpp
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// message format is described in NetworkMessage.hpp
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@ -108,7 +110,7 @@ void MessageClient::impl::parse_message (QByteArray const& msg)
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QByteArray mode;
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QByteArray mode;
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QByteArray message;
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QByteArray message;
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in >> time >> snr >> delta_time >> delta_frequency >> mode >> message;
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in >> time >> snr >> delta_time >> delta_frequency >> mode >> message;
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if (check_status (in))
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if (check_status (in) != Fail)
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{
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{
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Q_EMIT self_->reply (time, snr, delta_time, delta_frequency
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Q_EMIT self_->reply (time, snr, delta_time, delta_frequency
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, QString::fromUtf8 (mode), QString::fromUtf8 (message));
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, QString::fromUtf8 (mode), QString::fromUtf8 (message));
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@ -117,23 +119,25 @@ void MessageClient::impl::parse_message (QByteArray const& msg)
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break;
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break;
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case NetworkMessage::Replay:
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case NetworkMessage::Replay:
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if (check_status (in))
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if (check_status (in) != Fail)
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{
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{
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Q_EMIT self_->replay ();
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Q_EMIT self_->replay ();
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}
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}
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break;
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break;
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case NetworkMessage::HaltTx:
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case NetworkMessage::HaltTx:
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if (check_status (in))
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{
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{
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bool auto_only {false};
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bool auto_only;
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in >> auto_only;
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in >> auto_only;
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if (check_status (in) != Fail)
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Q_EMIT self_->halt_tx (auto_only);
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{
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}
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Q_EMIT self_->halt_tx (auto_only);
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}
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}
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break;
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break;
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case NetworkMessage::FreeText:
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case NetworkMessage::FreeText:
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if (check_status (in))
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if (check_status (in) != Fail)
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{
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{
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QByteArray message;
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QByteArray message;
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in >> message;
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in >> message;
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@ -163,7 +167,7 @@ void MessageClient::impl::heartbeat ()
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{
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{
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QByteArray message;
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QByteArray message;
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NetworkMessage::Builder hb {&message, NetworkMessage::Heartbeat, id_};
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NetworkMessage::Builder hb {&message, NetworkMessage::Heartbeat, id_};
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if (check_status (hb))
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if (OK == check_status (hb))
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{
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{
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writeDatagram (message, server_, server_port_);
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writeDatagram (message, server_, server_port_);
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}
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}
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@ -176,20 +180,22 @@ void MessageClient::impl::closedown ()
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{
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{
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QByteArray message;
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QByteArray message;
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NetworkMessage::Builder out {&message, NetworkMessage::Close, id_};
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NetworkMessage::Builder out {&message, NetworkMessage::Close, id_};
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if (check_status (out))
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if (OK == check_status (out))
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{
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{
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writeDatagram (message, server_, server_port_);
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writeDatagram (message, server_, server_port_);
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}
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}
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}
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}
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}
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}
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bool MessageClient::impl::check_status (QDataStream const& stream) const
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auto MessageClient::impl::check_status (QDataStream const& stream) const -> StreamStatus
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{
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{
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auto stat = stream.status ();
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auto stat = stream.status ();
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StreamStatus result {Fail};
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switch (stat)
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switch (stat)
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{
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{
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case QDataStream::ReadPastEnd:
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case QDataStream::ReadPastEnd:
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Q_EMIT self_->error ("Message serialization error: read failed");
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qDebug () << __PRETTY_FUNCTION__ << " warning: short UDP message received.";
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result = Short;
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break;
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break;
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case QDataStream::ReadCorruptData:
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case QDataStream::ReadCorruptData:
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@ -201,9 +207,10 @@ bool MessageClient::impl::check_status (QDataStream const& stream) const
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break;
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break;
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default:
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default:
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result = OK;
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break;
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break;
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}
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}
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return QDataStream::Ok == stat;
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return result;
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}
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}
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MessageClient::MessageClient (QString const& id, QString const& server, port_type server_port, QObject * self)
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MessageClient::MessageClient (QString const& id, QString const& server, port_type server_port, QObject * self)
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@ -262,10 +269,14 @@ void MessageClient::status_update (Frequency f, QString const& mode, QString con
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NetworkMessage::Builder out {&message, NetworkMessage::Status, m_->id_};
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NetworkMessage::Builder out {&message, NetworkMessage::Status, m_->id_};
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out << f << mode.toUtf8 () << dx_call.toUtf8 () << report.toUtf8 () << tx_mode.toUtf8 ()
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out << f << mode.toUtf8 () << dx_call.toUtf8 () << report.toUtf8 () << tx_mode.toUtf8 ()
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<< tx_enabled << transmitting;
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<< tx_enabled << transmitting;
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if (m_->check_status (out))
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if (impl::OK == m_->check_status (out))
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{
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{
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m_->writeDatagram (message, m_->server_, m_->server_port_);
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m_->writeDatagram (message, m_->server_, m_->server_port_);
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}
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}
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else
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{
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Q_EMIT error ("Error creating UDP message");
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}
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}
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}
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}
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}
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@ -277,10 +288,14 @@ void MessageClient::decode (bool is_new, QTime time, qint32 snr, float delta_tim
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QByteArray message;
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QByteArray message;
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NetworkMessage::Builder out {&message, NetworkMessage::Decode, m_->id_};
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NetworkMessage::Builder out {&message, NetworkMessage::Decode, m_->id_};
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out << is_new << time << snr << delta_time << delta_frequency << mode.toUtf8 () << message_text.toUtf8 ();
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out << is_new << time << snr << delta_time << delta_frequency << mode.toUtf8 () << message_text.toUtf8 ();
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if (m_->check_status (out))
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if (impl::OK == m_->check_status (out))
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{
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{
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m_->writeDatagram (message, m_->server_, m_->server_port_);
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m_->writeDatagram (message, m_->server_, m_->server_port_);
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}
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}
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else
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{
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Q_EMIT error ("Error creating UDP message");
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}
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}
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}
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}
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}
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@ -290,10 +305,14 @@ void MessageClient::clear_decodes ()
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{
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{
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QByteArray message;
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QByteArray message;
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NetworkMessage::Builder out {&message, NetworkMessage::Clear, m_->id_};
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NetworkMessage::Builder out {&message, NetworkMessage::Clear, m_->id_};
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if (m_->check_status (out))
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if (impl::OK == m_->check_status (out))
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{
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{
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m_->writeDatagram (message, m_->server_, m_->server_port_);
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m_->writeDatagram (message, m_->server_, m_->server_port_);
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}
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}
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else
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{
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Q_EMIT error ("Error creating UDP message");
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}
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}
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}
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}
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}
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@ -308,9 +327,13 @@ void MessageClient::qso_logged (QDateTime time, QString const& dx_call, QString
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NetworkMessage::Builder out {&message, NetworkMessage::QSOLogged, m_->id_};
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NetworkMessage::Builder out {&message, NetworkMessage::QSOLogged, m_->id_};
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out << time << dx_call.toUtf8 () << dx_grid.toUtf8 () << dial_frequency << mode.toUtf8 ()
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out << time << dx_call.toUtf8 () << dx_grid.toUtf8 () << dial_frequency << mode.toUtf8 ()
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<< report_sent.toUtf8 () << report_received.toUtf8 () << tx_power.toUtf8 () << comments.toUtf8 () << name.toUtf8 ();
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<< report_sent.toUtf8 () << report_received.toUtf8 () << tx_power.toUtf8 () << comments.toUtf8 () << name.toUtf8 ();
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if (m_->check_status (out))
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if (impl::OK == m_->check_status (out))
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{
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{
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m_->writeDatagram (message, m_->server_, m_->server_port_);
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m_->writeDatagram (message, m_->server_, m_->server_port_);
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}
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}
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else
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{
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Q_EMIT error ("Error creating UDP message");
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}
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}
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}
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}
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}
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@ -34,12 +34,14 @@ public:
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clock_->start (NetworkMessage::pulse * 1000);
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clock_->start (NetworkMessage::pulse * 1000);
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}
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}
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enum StreamStatus {Fail, Short, OK};
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void leave_multicast_group ();
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void leave_multicast_group ();
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void join_multicast_group ();
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void join_multicast_group ();
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void parse_message (QHostAddress const& sender, port_type sender_port, QByteArray const& msg);
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void parse_message (QHostAddress const& sender, port_type sender_port, QByteArray const& msg);
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void tick ();
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void tick ();
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void pending_datagrams ();
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void pending_datagrams ();
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bool check_status (QDataStream const&) const;
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StreamStatus check_status (QDataStream const&) const;
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MessageServer * self_;
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MessageServer * self_;
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port_type port_;
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port_type port_;
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@ -110,104 +112,111 @@ void MessageServer::impl::parse_message (QHostAddress const& sender, port_type s
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NetworkMessage::Reader in {msg};
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NetworkMessage::Reader in {msg};
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auto id = in.id ();
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auto id = in.id ();
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bool new_client {false};
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if (OK == check_status (in))
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if (!clients_.contains (id))
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{
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{
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new_client = true;
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bool new_client {false};
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}
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if (!clients_.contains (id))
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clients_[id] = {sender, sender_port, QDateTime::currentDateTime ()};
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if (new_client)
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{
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Q_EMIT self_->client_opened (id);
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}
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//
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// message format is described in NetworkMessage.hpp
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//
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switch (in.type ())
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{
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case NetworkMessage::Heartbeat:
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//nothing to do here as time out handling deals with lifetime
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break;
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case NetworkMessage::Clear:
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Q_EMIT self_->clear_decodes (id);
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break;
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case NetworkMessage::Status:
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{
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// unpack message
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Frequency f;
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QByteArray mode;
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QByteArray dx_call;
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QByteArray report;
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QByteArray tx_mode;
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bool tx_enabled;
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bool transmitting;
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in >> f >> mode >> dx_call >> report >> tx_mode >> tx_enabled >> transmitting;
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if (check_status (in))
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{
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Q_EMIT self_->status_update (id, f, QString::fromUtf8 (mode), QString::fromUtf8 (dx_call)
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, QString::fromUtf8 (report), QString::fromUtf8 (tx_mode)
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, tx_enabled, transmitting);
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}
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}
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break;
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case NetworkMessage::Decode:
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{
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// unpack message
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bool is_new;
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QTime time;
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qint32 snr;
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float delta_time;
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quint32 delta_frequency;
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QByteArray mode;
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QByteArray message;
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in >> is_new >> time >> snr >> delta_time >> delta_frequency >> mode >> message;
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if (check_status (in))
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{
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Q_EMIT self_->decode (is_new, id, time, snr, delta_time, delta_frequency
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, QString::fromUtf8 (mode), QString::fromUtf8 (message));
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}
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}
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break;
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case NetworkMessage::QSOLogged:
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{
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QDateTime time;
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QByteArray dx_call;
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QByteArray dx_grid;
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Frequency dial_frequency;
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QByteArray mode;
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QByteArray report_sent;
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QByteArray report_received;
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QByteArray tx_power;
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QByteArray comments;
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QByteArray name;
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in >> time >> dx_call >> dx_grid >> dial_frequency >> mode >> report_sent >> report_received
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>> tx_power >> comments >> name;
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if (check_status (in))
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{
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Q_EMIT self_->qso_logged (id, time, QString::fromUtf8 (dx_call), QString::fromUtf8 (dx_grid)
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, dial_frequency, QString::fromUtf8 (mode), QString::fromUtf8 (report_sent)
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, QString::fromUtf8 (report_received), QString::fromUtf8 (tx_power)
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, QString::fromUtf8 (comments), QString::fromUtf8 (name));
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}
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}
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break;
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case NetworkMessage::Close:
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if (check_status (in))
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{
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{
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Q_EMIT self_->client_closed (id);
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new_client = true;
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clients_.remove (id);
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}
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}
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break;
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clients_[id] = {sender, sender_port, QDateTime::currentDateTime ()};
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if (new_client)
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{
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Q_EMIT self_->client_opened (id);
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}
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//
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// message format is described in NetworkMessage.hpp
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//
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switch (in.type ())
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{
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case NetworkMessage::Heartbeat:
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//nothing to do here as time out handling deals with lifetime
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break;
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default:
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case NetworkMessage::Clear:
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// Ignore
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Q_EMIT self_->clear_decodes (id);
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break;
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break;
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case NetworkMessage::Status:
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{
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// unpack message
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Frequency f;
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QByteArray mode;
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QByteArray dx_call;
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QByteArray report;
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QByteArray tx_mode;
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bool tx_enabled {false};
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bool transmitting {false};
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in >> f >> mode >> dx_call >> report >> tx_mode >> tx_enabled >> transmitting;
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if (check_status (in) != Fail)
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{
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Q_EMIT self_->status_update (id, f, QString::fromUtf8 (mode), QString::fromUtf8 (dx_call)
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, QString::fromUtf8 (report), QString::fromUtf8 (tx_mode)
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, tx_enabled, transmitting);
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}
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}
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break;
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|
|
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case NetworkMessage::Decode:
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{
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// unpack message
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bool is_new {true};
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QTime time;
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qint32 snr;
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float delta_time;
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quint32 delta_frequency;
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QByteArray mode;
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QByteArray message;
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in >> is_new >> time >> snr >> delta_time >> delta_frequency >> mode >> message;
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if (check_status (in) != Fail)
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{
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Q_EMIT self_->decode (is_new, id, time, snr, delta_time, delta_frequency
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, QString::fromUtf8 (mode), QString::fromUtf8 (message));
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}
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}
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break;
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case NetworkMessage::QSOLogged:
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{
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QDateTime time;
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QByteArray dx_call;
|
||||||
|
QByteArray dx_grid;
|
||||||
|
Frequency dial_frequency;
|
||||||
|
QByteArray mode;
|
||||||
|
QByteArray report_sent;
|
||||||
|
QByteArray report_received;
|
||||||
|
QByteArray tx_power;
|
||||||
|
QByteArray comments;
|
||||||
|
QByteArray name;
|
||||||
|
in >> time >> dx_call >> dx_grid >> dial_frequency >> mode >> report_sent >> report_received
|
||||||
|
>> tx_power >> comments >> name;
|
||||||
|
if (check_status (in) != Fail)
|
||||||
|
{
|
||||||
|
Q_EMIT self_->qso_logged (id, time, QString::fromUtf8 (dx_call), QString::fromUtf8 (dx_grid)
|
||||||
|
, dial_frequency, QString::fromUtf8 (mode), QString::fromUtf8 (report_sent)
|
||||||
|
, QString::fromUtf8 (report_received), QString::fromUtf8 (tx_power)
|
||||||
|
, QString::fromUtf8 (comments), QString::fromUtf8 (name));
|
||||||
|
}
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
|
||||||
|
case NetworkMessage::Close:
|
||||||
|
if (check_status (in) != Fail)
|
||||||
|
{
|
||||||
|
Q_EMIT self_->client_closed (id);
|
||||||
|
clients_.remove (id);
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
|
||||||
|
default:
|
||||||
|
// Ignore
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
Q_EMIT self_->error ("MessageServer warning: invalid UDP message received");
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
catch (std::exception const& e)
|
catch (std::exception const& e)
|
||||||
@ -234,13 +243,15 @@ void MessageServer::impl::tick ()
|
|||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
bool MessageServer::impl::check_status (QDataStream const& stream) const
|
auto MessageServer::impl::check_status (QDataStream const& stream) const -> StreamStatus
|
||||||
{
|
{
|
||||||
auto stat = stream.status ();
|
auto stat = stream.status ();
|
||||||
|
StreamStatus result {Fail};
|
||||||
switch (stat)
|
switch (stat)
|
||||||
{
|
{
|
||||||
case QDataStream::ReadPastEnd:
|
case QDataStream::ReadPastEnd:
|
||||||
Q_EMIT self_->error ("Message serialization error: read failed");
|
qDebug () << __PRETTY_FUNCTION__ << " warning: short UDP message received.";
|
||||||
|
result = Short;
|
||||||
break;
|
break;
|
||||||
|
|
||||||
case QDataStream::ReadCorruptData:
|
case QDataStream::ReadCorruptData:
|
||||||
@ -252,9 +263,10 @@ bool MessageServer::impl::check_status (QDataStream const& stream) const
|
|||||||
break;
|
break;
|
||||||
|
|
||||||
default:
|
default:
|
||||||
|
result = OK;
|
||||||
break;
|
break;
|
||||||
}
|
}
|
||||||
return QDataStream::Ok == stat;
|
return result;
|
||||||
}
|
}
|
||||||
|
|
||||||
MessageServer::MessageServer (QObject * parent)
|
MessageServer::MessageServer (QObject * parent)
|
||||||
@ -296,10 +308,14 @@ void MessageServer::reply (QString const& id, QTime time, qint32 snr, float delt
|
|||||||
QByteArray message;
|
QByteArray message;
|
||||||
NetworkMessage::Builder out {&message, NetworkMessage::Reply, id};
|
NetworkMessage::Builder out {&message, NetworkMessage::Reply, id};
|
||||||
out << time << snr << delta_time << delta_frequency << mode.toUtf8 () << message_text.toUtf8 ();
|
out << time << snr << delta_time << delta_frequency << mode.toUtf8 () << message_text.toUtf8 ();
|
||||||
if (m_->check_status (out))
|
if (impl::OK == m_->check_status (out))
|
||||||
{
|
{
|
||||||
m_->writeDatagram (message, iter.value ().sender_address_, (*iter).sender_port_);
|
m_->writeDatagram (message, iter.value ().sender_address_, (*iter).sender_port_);
|
||||||
}
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
Q_EMIT error ("Error creating UDP message");
|
||||||
|
}
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
@ -310,10 +326,14 @@ void MessageServer::replay (QString const& id)
|
|||||||
{
|
{
|
||||||
QByteArray message;
|
QByteArray message;
|
||||||
NetworkMessage::Builder out {&message, NetworkMessage::Replay, id};
|
NetworkMessage::Builder out {&message, NetworkMessage::Replay, id};
|
||||||
if (m_->check_status (out))
|
if (impl::OK == m_->check_status (out))
|
||||||
{
|
{
|
||||||
m_->writeDatagram (message, iter.value ().sender_address_, (*iter).sender_port_);
|
m_->writeDatagram (message, iter.value ().sender_address_, (*iter).sender_port_);
|
||||||
}
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
Q_EMIT error ("Error creating UDP message");
|
||||||
|
}
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
@ -325,10 +345,14 @@ void MessageServer::halt_tx (QString const& id, bool auto_only)
|
|||||||
QByteArray message;
|
QByteArray message;
|
||||||
NetworkMessage::Builder out {&message, NetworkMessage::HaltTx, id};
|
NetworkMessage::Builder out {&message, NetworkMessage::HaltTx, id};
|
||||||
out << auto_only;
|
out << auto_only;
|
||||||
if (m_->check_status (out))
|
if (impl::OK == m_->check_status (out))
|
||||||
{
|
{
|
||||||
m_->writeDatagram (message, iter.value ().sender_address_, (*iter).sender_port_);
|
m_->writeDatagram (message, iter.value ().sender_address_, (*iter).sender_port_);
|
||||||
}
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
Q_EMIT error ("Error creating UDP message");
|
||||||
|
}
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
@ -340,9 +364,13 @@ void MessageServer::free_text (QString const& id, QString const& text)
|
|||||||
QByteArray message;
|
QByteArray message;
|
||||||
NetworkMessage::Builder out {&message, NetworkMessage::FreeText, id};
|
NetworkMessage::Builder out {&message, NetworkMessage::FreeText, id};
|
||||||
out << text.toUtf8 ();
|
out << text.toUtf8 ();
|
||||||
if (m_->check_status (out))
|
if (impl::OK == m_->check_status (out))
|
||||||
{
|
{
|
||||||
m_->writeDatagram (message, iter.value ().sender_address_, (*iter).sender_port_);
|
m_->writeDatagram (message, iter.value ().sender_address_, (*iter).sender_port_);
|
||||||
}
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
Q_EMIT error ("Error creating UDP message");
|
||||||
|
}
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
Loading…
Reference in New Issue
Block a user