qbluetoothserver_p.h

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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
#ifndef QBLUETOOTHSERVER_P_H
#define QBLUETOOTHSERVER_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 <QtGlobal>
#include <QList>
#include <QtBluetooth/QBluetoothSocket>
#include "qbluetoothserver.h"
#include "qbluetooth.h"
 
#if QT_CONFIG(bluez)
QT_FORWARD_DECLARE_CLASS(QSocketNotifier)
#endif
 
#ifdef QT_ANDROID_BLUETOOTH
#include <QtCore/QJniEnvironment>
#include <QtCore/QJniObject>
#include <QtBluetooth/QBluetoothUuid>
 
class ServerAcceptanceThread;
#endif
 
#ifdef QT_WINRT_BLUETOOTH
#include <QtCore/QMutex>
 
#include <wrl.h>
// No forward declares because QBluetoothServerPrivate::listener does not work with them
#include <windows.networking.sockets.h>
#endif
 
#ifdef QT_OSX_BLUETOOTH
 
#include "darwin/btdelegates_p.h"
#include "darwin/btraii_p.h"
 
#include <QtCore/QMutex>
 
#endif // QT_OSX_BLUETOOTH
 
QT_BEGIN_NAMESPACE
 
class QBluetoothAddress;
class QBluetoothSocket;
class QBluetoothServer;
 
class QBluetoothServerPrivate
#ifdef QT_OSX_BLUETOOTH
        : public DarwinBluetooth::SocketListener
#endif
{
    Q_DECLARE_PUBLIC(QBluetoothServer)
 
public:
    QBluetoothServerPrivate(QBluetoothServiceInfo::Protocol serverType, QBluetoothServer *parent);
    ~QBluetoothServerPrivate();
 
#if QT_CONFIG(bluez)
    void _q_newConnection();
    void setSocketSecurityLevel(QBluetooth::SecurityFlags requestedSecLevel, int *errnoCode);
    QBluetooth::SecurityFlags socketSecurityLevel() const;
    static QBluetoothSocket *createSocketForServer(
                QBluetoothServiceInfo::Protocol socketType = QBluetoothServiceInfo::RfcommProtocol);
#endif
 
public:
    QBluetoothSocket *socket = nullptr;
 
    int maxPendingConnections = 1;
    QBluetooth::SecurityFlags securityFlags = QBluetooth::Security::NoSecurity;
    QBluetoothServiceInfo::Protocol serverType;
 
protected:
    QBluetoothServer *q_ptr;
 
private:
    QBluetoothServer::Error m_lastError = QBluetoothServer::NoError;
#if QT_CONFIG(bluez)
    QSocketNotifier *socketNotifier = nullptr;
#elif defined(QT_ANDROID_BLUETOOTH)
    ServerAcceptanceThread *thread;
    QString m_serviceName;
    QBluetoothUuid m_uuid;
public:
    bool isListening() const;
    bool initiateActiveListening(const QBluetoothUuid& uuid, const QString &serviceName);
    bool deactivateActiveListening();
#elif defined(QT_WINRT_BLUETOOTH)
    EventRegistrationToken connectionToken {-1};
 
    mutable QMutex pendingConnectionsMutex;
    QList<Microsoft::WRL::ComPtr<ABI::Windows::Networking::Sockets::IStreamSocket>>
            pendingConnections;
 
    Microsoft::WRL::ComPtr<ABI::Windows::Networking::Sockets::IStreamSocketListener> socketListener;
    HRESULT handleClientConnection(ABI::Windows::Networking::Sockets::IStreamSocketListener *listener,
                                   ABI::Windows::Networking::Sockets::IStreamSocketListenerConnectionReceivedEventArgs *args);
 
public:
    bool isListening() const;
    Microsoft::WRL::ComPtr<ABI::Windows::Networking::Sockets::IStreamSocketListener> listener() { return socketListener; }
    bool initiateActiveListening(const QString &serviceName);
    bool deactivateActiveListening();
#endif
 
#ifdef QT_OSX_BLUETOOTH
 
public:
 
    friend class QBluetoothServer;
    friend class QBluetoothServiceInfoPrivate;
 
private:
    bool startListener(quint16 realPort);
    void stopListener();
    bool isListening() const;
 
    // SocketListener (delegate):
    void openNotifyRFCOMM(void *channel) override;
    void openNotifyL2CAP(void *channel) override;
 
    // Either a "temporary" channelID/PSM assigned by QBluetoothServer::listen,
    // or a real channelID/PSM returned by IOBluetooth after we've registered
    // a service.
    quint16 port;
 
    DarwinBluetooth::StrongReference listener;
 
    // These static functions below
    // deal with differences between bluetooth sockets
    // (bluez and QtBluetooth's API) and IOBluetooth, where it's not possible
    // to have a real PSM/channelID _before_ a service is registered,
    // the solution - "fake" ports.
    // These functions require external locking - using channelMapMutex.
    static QMutex &channelMapMutex();
 
    static bool channelIsBusy(quint16 channelID);
    static quint16 findFreeChannel();
 
    static bool psmIsBusy(quint16 psm);
    static quint16 findFreePSM();
 
    static void registerServer(QBluetoothServerPrivate *server, quint16 port);
    static QBluetoothServerPrivate *registeredServer(quint16 port, QBluetoothServiceInfo::Protocol protocol);
    static void unregisterServer(QBluetoothServerPrivate *server);
 
    using PendingConnection = DarwinBluetooth::StrongReference;
    QList<PendingConnection> pendingConnections;
 
#endif // QT_OSX_BLUETOOTH
};
 
QT_END_NAMESPACE
 
#endif