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| ****************************************************************************/ |
| |
| #ifndef QHOSTINFO_H |
| #define QHOSTINFO_H |
| |
| #include <QtNetwork/qtnetworkglobal.h> |
| #include <QtCore/qlist.h> |
| #include <QtCore/qscopedpointer.h> |
| #include <QtNetwork/qhostaddress.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| |
| class QObject; |
| class QHostInfoPrivate; |
| |
| class Q_NETWORK_EXPORT QHostInfo |
| { |
| public: |
| enum HostInfoError { |
| NoError, |
| HostNotFound, |
| UnknownError |
| }; |
| |
| explicit QHostInfo(int lookupId = -1); |
| QHostInfo(const QHostInfo &d); |
| QHostInfo(QHostInfo &&other) noexcept : d_ptr(qExchange(other.d_ptr, nullptr)) {} |
| QHostInfo &operator=(const QHostInfo &d); |
| QHostInfo &operator=(QHostInfo &&other) noexcept { swap(other); return *this; } |
| ~QHostInfo(); |
| |
| void swap(QHostInfo &other) noexcept { qSwap(d_ptr, other.d_ptr); } |
| |
| QString hostName() const; |
| void setHostName(const QString &name); |
| |
| QList<QHostAddress> addresses() const; |
| void setAddresses(const QList<QHostAddress> &addresses); |
| |
| HostInfoError error() const; |
| void setError(HostInfoError error); |
| |
| QString errorString() const; |
| void setErrorString(const QString &errorString); |
| |
| void setLookupId(int id); |
| int lookupId() const; |
| |
| static int lookupHost(const QString &name, QObject *receiver, const char *member); |
| static void abortHostLookup(int lookupId); |
| |
| static QHostInfo fromName(const QString &name); |
| static QString localHostName(); |
| static QString localDomainName(); |
| |
| #ifdef Q_CLANG_QDOC |
| template<typename Functor> |
| static int lookupHost(const QString &name, Functor functor); |
| template<typename Functor> |
| static int lookupHost(const QString &name, const QObject *context, Functor functor); |
| #else |
| // lookupHost to a QObject slot |
| template <typename Func> |
| static inline int lookupHost(const QString &name, |
| const typename QtPrivate::FunctionPointer<Func>::Object *receiver, |
| Func slot) |
| { |
| typedef QtPrivate::FunctionPointer<Func> SlotType; |
| |
| typedef QtPrivate::FunctionPointer<void (*)(QHostInfo)> SignalType; |
| Q_STATIC_ASSERT_X(int(SignalType::ArgumentCount) >= int(SlotType::ArgumentCount), |
| "The slot requires more arguments than the signal provides."); |
| Q_STATIC_ASSERT_X((QtPrivate::CheckCompatibleArguments<typename SignalType::Arguments, |
| typename SlotType::Arguments>::value), |
| "Signal and slot arguments are not compatible."); |
| Q_STATIC_ASSERT_X((QtPrivate::AreArgumentsCompatible<typename SlotType::ReturnType, |
| typename SignalType::ReturnType>::value), |
| "Return type of the slot is not compatible " |
| "with the return type of the signal."); |
| |
| auto slotObj = new QtPrivate::QSlotObject<Func, typename SlotType::Arguments, void>(slot); |
| return lookupHostImpl(name, receiver, slotObj); |
| } |
| |
| // lookupHost to a callable (without context) |
| template <typename Func> |
| static inline typename std::enable_if<!QtPrivate::FunctionPointer<Func>::IsPointerToMemberFunction && |
| !std::is_same<const char *, Func>::value, int>::type |
| lookupHost(const QString &name, Func slot) |
| { |
| return lookupHost(name, nullptr, std::move(slot)); |
| } |
| |
| // lookupHost to a functor or function pointer (with context) |
| template <typename Func1> |
| static inline typename std::enable_if<!QtPrivate::FunctionPointer<Func1>::IsPointerToMemberFunction && |
| !std::is_same<const char*, Func1>::value, int>::type |
| lookupHost(const QString &name, QObject *context, Func1 slot) |
| { |
| typedef QtPrivate::FunctionPointer<Func1> SlotType; |
| |
| Q_STATIC_ASSERT_X(int(SlotType::ArgumentCount) <= 1, |
| "The slot must not require more than one argument"); |
| |
| auto slotObj = new QtPrivate::QFunctorSlotObject<Func1, 1, |
| typename QtPrivate::List<QHostInfo>, |
| void>(std::move(slot)); |
| return lookupHostImpl(name, context, slotObj); |
| } |
| #endif // Q_QDOC |
| |
| private: |
| QHostInfoPrivate *d_ptr; |
| Q_DECLARE_PRIVATE(QHostInfo) |
| |
| static int lookupHostImpl(const QString &name, |
| const QObject *receiver, |
| QtPrivate::QSlotObjectBase *slotObj); |
| }; |
| |
| Q_DECLARE_SHARED_NOT_MOVABLE_UNTIL_QT6(QHostInfo) |
| |
| QT_END_NAMESPACE |
| |
| Q_DECLARE_METATYPE(QHostInfo) |
| |
| #endif // QHOSTINFO_H |