text: /****************************************************************************
  **
  ** Copyright (C) 2018 The Qt Company Ltd.
  ** Contact: https://www.qt.io/licensing/
  **
  ** This file is part of the QtBluetooth module of the Qt Toolkit.
  **
  ** $QT_BEGIN_LICENSE:LGPL$
  ** Commercial License Usage
  ** Licensees holding valid commercial Qt licenses may use this file in
  ** accordance with the commercial license agreement provided with the
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  **
  ** GNU Lesser General Public License Usage
  ** Alternatively, this file may be used under the terms of the GNU Lesser
  ** General Public License version 3 as published by the Free Software
  ** Foundation and appearing in the file LICENSE.LGPL3 included in the
  ** packaging of this file. Please review the following information to
  ** ensure the GNU Lesser General Public License version 3 requirements
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  **
  ** GNU General Public License Usage
  ** Alternatively, this file may be used under the terms of the GNU
  ** General Public License version 2.0 or (at your option) the GNU General
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  ****************************************************************************/
  
  #ifndef QBLUETOOTHSOCKETBASEPRIVATE_P_H
  #define QBLUETOOTHSOCKETBASEPRIVATE_P_H
  
  //
  //  W A R N I N G
  //  -------------
  //
  // This file is not part of the Qt API.  It exists purely as an
  // implementation detail.  This header file may change from version to
  // version without notice, or even be removed.
  //
  // We mean it.
  //
  
  #include <qglobal.h>
  #include <QObject>
  #include <QtBluetooth/qbluetoothsocket.h>
  
  #if defined(QT_ANDROID_BLUETOOTH)
  #include <QtAndroidExtras/QAndroidJniObject>
  #endif
  
  #if defined(QT_WINRT_BLUETOOTH)
  #include <QtCore/QMutex>
  
  #include <wrl.h>
  
  namespace ABI {
      namespace Windows {
          namespace Networking {
              namespace Sockets {
                  struct IStreamSocket;
              }
          }
          namespace Foundation {
              struct IAsyncAction;
              enum class AsyncStatus;
          }
      }
  }
  #endif // QT_WINRT_BLUETOOTH
  
  #ifndef QPRIVATELINEARBUFFER_BUFFERSIZE
  #define QPRIVATELINEARBUFFER_BUFFERSIZE Q_INT64_C(16384)
  #endif
  #include "qprivatelinearbuffer_p.h"
  
  QT_FORWARD_DECLARE_CLASS(QSocketNotifier)
  QT_FORWARD_DECLARE_CLASS(QBluetoothServiceDiscoveryAgent)
  
  QT_BEGIN_NAMESPACE
  
  class QBluetoothSocketBasePrivate : public QObject
  {
      Q_OBJECT
  
  public:
      explicit QBluetoothSocketBasePrivate(QObject *parent = nullptr);
      virtual ~QBluetoothSocketBasePrivate();
  
      virtual bool ensureNativeSocket(QBluetoothServiceInfo::Protocol type) = 0;
  
      virtual QString localName() const = 0;
      virtual QBluetoothAddress localAddress() const = 0;
      virtual quint16 localPort() const = 0;
  
      virtual QString peerName() const = 0;
      virtual QBluetoothAddress peerAddress() const = 0;
      virtual quint16 peerPort() const = 0;
  
      virtual void abort() = 0;
      virtual void close() = 0;
  
      virtual qint64 writeData(const char *data, qint64 maxSize) = 0;
      virtual qint64 readData(char *data, qint64 maxSize) = 0;
  
      virtual qint64 bytesAvailable() const = 0;
      virtual bool canReadLine() const = 0;
      virtual qint64 bytesToWrite() const = 0;
  
      virtual bool setSocketDescriptor(int socketDescriptor, QBluetoothServiceInfo::Protocol socketType,
                               QBluetoothSocket::SocketState socketState = QBluetoothSocket::ConnectedState,
                               QBluetoothSocket::OpenMode openMode = QBluetoothSocket::ReadWrite) = 0;
  
  
  #if defined(QT_ANDROID_BLUETOOTH)
      virtual void connectToServiceHelper(const QBluetoothAddress &address, const QBluetoothUuid &uuid,
                            QIODevice::OpenMode openMode) = 0;
  #else
      virtual void connectToServiceHelper(const QBluetoothAddress &address, quint16 port,
                                    QIODevice::OpenMode openMode) = 0;
  #endif
      virtual void connectToService(const QBluetoothServiceInfo &service,
                                    QIODevice::OpenMode openMode) = 0;
      virtual void connectToService(const QBluetoothAddress &address, const QBluetoothUuid &uuid,
                                    QIODevice::OpenMode openMode) = 0;
      virtual void connectToService(const QBluetoothAddress &address, quint16 port,
                                    QIODevice::OpenMode openMode) = 0;
  
  #ifdef QT_ANDROID_BLUETOOTH
      virtual bool setSocketDescriptor(const QAndroidJniObject &socket, QBluetoothServiceInfo::Protocol socketType,
                               QBluetoothSocket::SocketState socketState = QBluetoothSocket::ConnectedState,
                               QBluetoothSocket::OpenMode openMode = QBluetoothSocket::ReadWrite) = 0;
  #elif defined(QT_WINRT_BLUETOOTH)
      virtual bool setSocketDescriptor(Microsoft::WRL::ComPtr<ABI::Windows::Networking::Sockets::IStreamSocket> socket,
                               QBluetoothServiceInfo::Protocol socketType,
                               QBluetoothSocket::SocketState socketState = QBluetoothSocket::ConnectedState,
                               QBluetoothSocket::OpenMode openMode = QBluetoothSocket::ReadWrite) = 0;
  #endif
  
  public:
      QPrivateLinearBuffer buffer;
      QPrivateLinearBuffer txBuffer;
      int socket = -1;
      QBluetoothServiceInfo::Protocol socketType = QBluetoothServiceInfo::UnknownProtocol;
      QBluetoothSocket::SocketState state = QBluetoothSocket::UnconnectedState;
      QBluetoothSocket::SocketError socketError = QBluetoothSocket::NoSocketError;
      QSocketNotifier *readNotifier = nullptr;
      QSocketNotifier *connectWriteNotifier = nullptr;
      bool connecting = false;
  
      QBluetoothServiceDiscoveryAgent *discoveryAgent = nullptr;
      QBluetoothSocket::OpenMode openMode;
      QBluetooth::SecurityFlags secFlags;
  
      QString errorString;
  
  protected:
      Q_DECLARE_PUBLIC(QBluetoothSocket)
      QBluetoothSocket *q_ptr;
  
  #if QT_CONFIG(bluez)
  public:
      quint8 lowEnergySocketType = 0;
  #endif
  };
  
  static inline void convertAddress(const quint64 from, quint8 (&to)[6])
  {
      to[0] = (from >> 0) & 0xff;
      to[1] = (from >> 8) & 0xff;
      to[2] = (from >> 16) & 0xff;
      to[3] = (from >> 24) & 0xff;
      to[4] = (from >> 32) & 0xff;
      to[5] = (from >> 40) & 0xff;
  }
  
  static inline quint64 convertAddress(const quint8 (&from)[6], quint64 *to = nullptr)
  {
      const quint64 result = (quint64(from[0]) << 0) |
           (quint64(from[1]) << 8) |
           (quint64(from[2]) << 16) |
           (quint64(from[3]) << 24) |
           (quint64(from[4]) << 32) |
           (quint64(from[5]) << 40);
      if (to)
          *to = result;
      return result;
  }
  
  QT_END_NAMESPACE
  
  #endif // QBLUETOOTHSOCKETBASE_P_H
  