1 files changed, 124 insertions, 0 deletions
diff --git a/qdb/hostmessages.cpp b/qdb/hostmessages.cpp
new file mode 100644
index 0000000..9fda389
--- /dev/null
+++ b/qdb/hostmessages.cpp
@@ -0,0 +1,124 @@
+/******************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the Qt Debug Bridge.
+**
+** $QT_BEGIN_LICENSE:COMM$
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://www.qt.io/contact-us.
+**
+** $QT_END_LICENSE$
+**
+******************************************************************************/
+#include "hostmessages.h"
+
+const QString responseField = "response";
+const QString requestField = "request";
+const QString versionField = "_version";
+
+void setVersionField(QJsonObject &obj)
+{
+    obj[versionField] = qdbHostMessageVersion;
+}
+
+bool checkHostMessageVersion(const QJsonObject &obj)
+{
+    return obj[versionField].toInt() == qdbHostMessageVersion;
+}
+
+QByteArray createRequest(const RequestType &type)
+{
+    QJsonObject obj;
+    setVersionField(obj);
+    obj[requestField] = requestTypeString(type);
+    return QJsonDocument{obj}.toJson(QJsonDocument::Compact).append('\n');
+}
+
+RequestType requestType(const QJsonObject &obj)
+{
+    const auto fieldValue = obj[requestField];
+    if (fieldValue == requestTypeString(RequestType::Devices))
+        return RequestType::Devices;
+    if (fieldValue == requestTypeString(RequestType::WatchDevices))
+        return RequestType::WatchDevices;
+    if (fieldValue == requestTypeString(RequestType::StopServer))
+        return RequestType::StopServer;
+
+    return RequestType::Unknown;
+}
+
+QString requestTypeString(const RequestType &type)
+{
+    switch (type) {
+    case RequestType::Devices:
+        return "devices";
+    case RequestType::WatchDevices:
+        return "watch-devices";
+    case RequestType::StopServer:
+        return "stop-server";
+    case RequestType::Unknown:
+        break;
+    }
+    qFatal("Tried to use unknown request type as a value in requestTypeString");
+}
+
+QJsonObject initializeResponse(const ResponseType &type)
+{
+    QJsonObject obj;
+    setVersionField(obj);
+    obj[responseField] = responseTypeString(type);
+    return obj;
+}
+
+ResponseType responseType(const QJsonObject &obj)
+{
+    const auto fieldValue = obj[responseField];
+    if (fieldValue == responseTypeString(ResponseType::Devices))
+        return ResponseType::Devices;
+    if (fieldValue == responseTypeString(ResponseType::NewDevice))
+        return ResponseType::NewDevice;
+    if (fieldValue == responseTypeString(ResponseType::DisconnectedDevice))
+        return ResponseType::DisconnectedDevice;
+    if (fieldValue == responseTypeString(ResponseType::Stopping))
+        return ResponseType::Stopping;
+    if (fieldValue == responseTypeString(ResponseType::InvalidRequest))
+        return ResponseType::InvalidRequest;
+    if (fieldValue == responseTypeString(ResponseType::UnsupportedVersion))
+        return ResponseType::UnsupportedVersion;
+
+    return ResponseType::Unknown;
+}
+
+QString responseTypeString(const ResponseType &type)
+{
+    switch (type) {
+    case ResponseType::Devices:
+        return "devices";
+    case ResponseType::NewDevice:
+        return "new-device";
+    case ResponseType::DisconnectedDevice:
+        return "disconnected-device";
+    case ResponseType::Stopping:
+        return "stopping";
+    case ResponseType::InvalidRequest:
+        return "invalid-request";
+    case ResponseType::UnsupportedVersion:
+        return "unsupported-version";
+    case ResponseType::Unknown:
+        break;
+    }
+    qFatal("Tried to use unknown response type as a value in responseTypeString");
+}
+
+QByteArray serialiseResponse(const QJsonObject &obj)
+{
+    return QJsonDocument{obj}.toJson(QJsonDocument::Compact).append('\n');
+}