tqthreadstorage.h Include File

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# tqthreadstorage.h

This is the verbatim text of the tqthreadstorage.h include file. It is provided only for illustration; the copyright remains with Trolltech.

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    ** $Id: qt/tqthreadstorage.h   3.3.8   edited Jan 11 14:46 $
    **
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    ** Copyright (C) 2005-2007 Trolltech ASA.  All rights reserved.
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    #ifndef TQTHREADSTORAGE_H
    #define TQTHREADSTORAGE_H

    #ifdef TQT_THREAD_SUPPORT

    #ifndef QT_H
    #include "tqglobal.h"
    #endif // QT_H

    class TQ_EXPORT TQThreadStorageData
    {
    public:
        TQThreadStorageData( void (*func)(void *) );
        ~TQThreadStorageData();

        void** get() const;
        void** set( void* p );

        static void finish( void** );
        int id;
    };

    template <class T>
    class TQThreadStorage
    {
    private:
        TQThreadStorageData d;

    #if defined(TQ_DISABLE_COPY)
        // disable copy constructor and operator=
        TQThreadStorage( const TQThreadStorage & );
        TQThreadStorage &operator=( const TQThreadStorage & );
    #endif // TQ_DISABLE_COPY

        static void deleteData( void *x ) { delete (T)x; }

    public:
        inline TQThreadStorage() : d( deleteData ) {  }
        inline ~TQThreadStorage() { }

        inline bool hasLocalData() const
        { return d.get() != 0; }

        inline T& localData()
        { void **v = d.get(); if ( !v ) v = d.set( 0 ); return *(T*)v; }

        inline T localData() const
        { void **v = d.get(); return ( v ? *(T*)v : 0 ); }

        inline void setLocalData( T t )
        { (void) d.set( t ); }
    };

    #endif // TQT_THREAD_SUPPORT

    #endif // TQTHREADSTORAGE_H