componentbase.hxx

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 *   Licensed to the Apache Software Foundation (ASF) under one or more
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#ifndef INCLUDED_COMPHELPER_COMPONENTBASE_HXX
#define INCLUDED_COMPHELPER_COMPONENTBASE_HXX
 
#include <comphelper/comphelperdllapi.h>
#include <cppuhelper/interfacecontainer.h>
 
 
namespace comphelper
{
 
 
    //= ComponentBase
 
    class COMPHELPER_DLLPUBLIC ComponentBase
    {
    protected:
        ComponentBase( ::cppu::OBroadcastHelper& _rBHelper )
            :m_rBHelper( _rBHelper )
            ,m_bInitialized( false )
        {
        }
 
        struct NoInitializationNeeded { };
 
        ComponentBase( ::cppu::OBroadcastHelper& _rBHelper, NoInitializationNeeded )
            :m_rBHelper( _rBHelper )
            ,m_bInitialized( true )
        {
        }
 
        ~ComponentBase() COVERITY_NOEXCEPT_FALSE {}
 
        void setInitialized()    { m_bInitialized = true; }
 
    public:
        struct GuardAccess { friend class ComponentMethodGuard; private: GuardAccess() { } };
 
        ::osl::Mutex&   getMutex( GuardAccess )                 { return getMutex(); }
        void                    checkDisposed( GuardAccess ) const;
        void                    checkInitialized( GuardAccess ) const;
 
    protected:
        ::cppu::OBroadcastHelper&   getBroadcastHelper()    { return m_rBHelper; }
        ::osl::Mutex&               getMutex()              { return m_rBHelper.rMutex; }
        bool                        impl_isDisposed() const { return m_rBHelper.bDisposed; }
 
        bool
                impl_isInitialized_nothrow() const { return m_bInitialized; }
 
        static css::uno::Reference< css::uno::XInterface >
                getComponent();
 
    private:
        ::cppu::OBroadcastHelper&   m_rBHelper;
        bool                        m_bInitialized;
    };
 
    class ComponentMethodGuard
    {
    public:
        enum class MethodType
        {
            Default,
            WithoutInit
 
        };
 
        ComponentMethodGuard( ComponentBase& _rComponent, const MethodType _eType = MethodType::Default )
            :m_aMutexGuard( _rComponent.getMutex( ComponentBase::GuardAccess() ) )
        {
            if ( _eType != MethodType::WithoutInit )
                _rComponent.checkInitialized( ComponentBase::GuardAccess() );
            _rComponent.checkDisposed( ComponentBase::GuardAccess() );
        }
 
        void clear()
        {
            m_aMutexGuard.clear();
        }
 
    private:
        osl::ClearableMutexGuard m_aMutexGuard;
    };
 
 
} // namespace ComponentBase
 
 
#endif // INCLUDED_COMPHELPER_COMPONENTBASE_HXX
 
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