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MergedCallbacks.hpp
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#ifndef MERGED_CALLBACKS_HPP
#define MERGED_CALLBACKS_HPP
#include <boost/function.hpp>
#include <boost/bind.hpp>
#include <map>
#include <deque>
#include <string>
#include <cassert>
class MergedCallbacks
{
public:
typedef boost::function<void()> CallbackType;
enum CallbackPriority
{
HIGH=1,
NORMAL,
LOW
};
public:
MergedCallbacks();
void executeCallbackWithPriority( CallbackPriority priority );
/* Static member or functions */
template<typename R>
void registerUniqueCallback( CallbackPriority priority,
boost::_bi::bind_t< R, R (*)(), boost::_bi::list0 > bind_object );
template<typename R, typename B1, typename A1 >
void registerUniqueCallback( CallbackPriority priority,
boost::_bi::bind_t< R, R(*)(B1), boost::_bi::list1<boost::_bi::value<A1> > > bind_object );
template<typename R, typename B1, typename B2, typename A1, typename A2 >
void registerUniqueCallback( CallbackPriority priority,
boost::_bi::bind_t< R, R(*)(B1, B2), boost::_bi::list2<boost::_bi::value<A1>, boost::_bi::value<A2> > > bind_object );
template<typename R, typename B1, typename B2, typename B3, typename A1, typename A2, typename A3 >
void registerUniqueCallback( CallbackPriority priority,
boost::_bi::bind_t< R, R(*)(B1, B2, B3), boost::_bi::list3<boost::_bi::value<A1>, boost::_bi::value<A2>, boost::_bi::value<A3> > > bind_object );
template<typename R, typename B1, typename B2, typename B3, typename B4, typename A1, typename A2, typename A3, typename A4 >
void registerUniqueCallback( CallbackPriority priority,
boost::_bi::bind_t< R, R(*)(B1, B2, B3, B4), boost::_bi::list4<boost::_bi::value<A1>, boost::_bi::value<A2>, boost::_bi::value<A3>, boost::_bi::value<A4> > > bind_object );
template<typename R, typename B1, typename B2, typename B3, typename B4, typename B5, typename A1, typename A2, typename A3, typename A4, typename A5 >
void registerUniqueCallback( CallbackPriority priority,
boost::_bi::bind_t< R, R(*)(B1, B2, B3, B4, B5), boost::_bi::list5<boost::_bi::value<A1>, boost::_bi::value<A2>, boost::_bi::value<A3>, boost::_bi::value<A4>, boost::_bi::value<A5> > > bind_object );
/* Virtual or Member functions */
template<typename R, class T, class A1>
void registerUniqueCallback( CallbackPriority priority,
boost::_bi::bind_t< R, boost::_mfi::mf0<R, T>, boost::_bi::list1<boost::_bi::value<A1*> > > bind_object );
template<typename R, class T, class B1, class A1, class A2>
void registerUniqueCallback( CallbackPriority priority,
boost::_bi::bind_t< R, boost::_mfi::mf1<R, T, B1>, boost::_bi::list2<boost::_bi::value<A1*>, boost::_bi::value<A2> > > bind_object );
template<typename R, class T, class B1, class B2, class A1, class A2, class A3>
void registerUniqueCallback( CallbackPriority priority,
boost::_bi::bind_t< R, boost::_mfi::mf2<R, T, B1, B2>, boost::_bi::list3<boost::_bi::value<A1*>, boost::_bi::value<A2>, boost::_bi::value<A3> > > bind_object );
template<typename R, class T, class B1, class B2, class B3, class A1, class A2, class A3, class A4>
void registerUniqueCallback( CallbackPriority priority,
boost::_bi::bind_t< R, boost::_mfi::mf3<R, T, B1, B2, B3>, boost::_bi::list4<boost::_bi::value<A1*>, boost::_bi::value<A2>, boost::_bi::value<A3>, boost::_bi::value<A4> > > bind_object );
template<typename R, class T,
class B1, class B2, class B3, class B4,
class A1, class A2, class A3, class A4, class A5>
void registerUniqueCallback( CallbackPriority priority,
boost::_bi::bind_t< R, boost::_mfi::mf4<R, T, B1, B2, B3, B4>,
boost::_bi::list5<boost::_bi::value<A1*>, boost::_bi::value<A2>, boost::_bi::value<A3>, boost::_bi::value<A4>, boost::_bi::value<A5> > > bind_object );
template<typename R, class T,
class B1, class B2, class B3, class B4, class B5,
class A1, class A2, class A3, class A4, class A5, class A6>
void registerUniqueCallback( CallbackPriority priority,
boost::_bi::bind_t< R, boost::_mfi::mf5<R, T, B1, B2, B3, B4, B5>,
boost::_bi::list6<boost::_bi::value<A1*>, boost::_bi::value<A2>, boost::_bi::value<A3>, boost::_bi::value<A4>, boost::_bi::value<A5>, boost::_bi::value<A6> > > bind_object );
private:
typedef std::deque< CallbackType > CallbackContainer;
typedef std::map< CallbackPriority, CallbackContainer > PriorityCallbackType;
typedef std::map< const CallbackType*, unsigned int > AccountingType;
private:
template<typename R, typename F, typename L>
bool hasFunction( CallbackPriority priority, const boost::_bi::bind_t<R, F, L>& external_func );
void registerCallback( CallbackPriority priority, CallbackType callback );
MergedCallbacks( const MergedCallbacks& );
MergedCallbacks& operator=( const MergedCallbacks& );
private:
AccountingType accounting_;
PriorityCallbackType callbacks_;
};
template<typename R, typename F, typename L>
inline bool MergedCallbacks::hasFunction( CallbackPriority priority, const boost::_bi::bind_t<R, F, L>& external_func )
{
typedef const boost::_bi::bind_t<R, F, L> basic_type;
CallbackContainer& callbacks = callbacks_[ priority ];
for( CallbackContainer::iterator itr = callbacks.begin(); itr != callbacks.end(); ++itr )
{
basic_type * internal_func = itr->target<basic_type>();
if (internal_func == NULL)
{
continue;
}
if( external_func.compare( *internal_func ) )
{
accounting_[ &(*itr) ] += 1;
return true;
}
}
return false;
}
/* Static member or functions */
template<typename R>
inline void MergedCallbacks::registerUniqueCallback( CallbackPriority priority,
boost::_bi::bind_t< R, R (*)(), boost::_bi::list0 > bind_object )
{
if( hasFunction( priority, bind_object ) )
return;
registerCallback( priority, bind_object );
}
template<typename R, typename B1, typename A1 >
inline void MergedCallbacks::registerUniqueCallback( CallbackPriority priority,
boost::_bi::bind_t< R, R(*)(B1), boost::_bi::list1<boost::_bi::value<A1> > > bind_object )
{
if( hasFunction( priority, bind_object ) )
return;
registerCallback( priority, bind_object );
}
template<typename R, typename B1, typename B2, typename A1, typename A2 >
inline void MergedCallbacks::registerUniqueCallback( CallbackPriority priority,
boost::_bi::bind_t< R, R(*)(B1, B2), boost::_bi::list2<boost::_bi::value<A1>, boost::_bi::value<A2> > > bind_object )
{
if( hasFunction( priority, bind_object ) )
return;
registerCallback( priority, bind_object );
}
template<typename R, typename B1, typename B2, typename B3, typename A1, typename A2, typename A3 >
inline void MergedCallbacks::registerUniqueCallback( CallbackPriority priority,
boost::_bi::bind_t< R, R(*)(B1, B2, B3), boost::_bi::list3<boost::_bi::value<A1>, boost::_bi::value<A2>, boost::_bi::value<A3> > > bind_object )
{
if( hasFunction( priority, bind_object ) )
return;
registerCallback( priority, bind_object );
}
template<typename R, typename B1, typename B2, typename B3, typename B4, typename A1, typename A2, typename A3, typename A4 >
inline void MergedCallbacks::registerUniqueCallback( CallbackPriority priority,
boost::_bi::bind_t< R, R(*)(B1, B2, B3, B4), boost::_bi::list4<boost::_bi::value<A1>, boost::_bi::value<A2>, boost::_bi::value<A3>, boost::_bi::value<A4> > > bind_object )
{
if( hasFunction( priority, bind_object ) )
return;
registerCallback( priority, bind_object );
}
template<typename R, typename B1, typename B2, typename B3, typename B4, typename B5, typename A1, typename A2, typename A3, typename A4, typename A5 >
inline void MergedCallbacks::registerUniqueCallback( CallbackPriority priority,
boost::_bi::bind_t< R, R(*)(B1, B2, B3, B4, B5), boost::_bi::list5<boost::_bi::value<A1>, boost::_bi::value<A2>, boost::_bi::value<A3>, boost::_bi::value<A4>, boost::_bi::value<A5> > > bind_object )
{
if( hasFunction( priority, bind_object ) )
return;
registerCallback( priority, bind_object );
}
/* Virtual or Member functions */
template<typename R, class T, class A1>
inline void MergedCallbacks::registerUniqueCallback( CallbackPriority priority,
boost::_bi::bind_t< R, boost::_mfi::mf0<R, T>, boost::_bi::list1<boost::_bi::value<A1*> > > bind_object )
{
if( hasFunction( priority, bind_object ) )
return;
registerCallback( priority, bind_object );
}
template<typename R, class T, class B1, class A1, class A2>
inline void MergedCallbacks::registerUniqueCallback( CallbackPriority priority,
boost::_bi::bind_t< R, boost::_mfi::mf1<R, T, B1>, boost::_bi::list2<boost::_bi::value<A1*>, boost::_bi::value<A2> > > bind_object )
{
if( hasFunction( priority, bind_object ) )
return;
registerCallback( priority, bind_object );
}
template<typename R, class T, class B1, class B2, class A1, class A2, class A3>
inline void MergedCallbacks::registerUniqueCallback( CallbackPriority priority,
boost::_bi::bind_t< R, boost::_mfi::mf2<R, T, B1, B2>, boost::_bi::list3<boost::_bi::value<A1*>, boost::_bi::value<A2>, boost::_bi::value<A3> > > bind_object )
{
if( hasFunction( priority, bind_object ) )
return;
registerCallback( priority, bind_object );
}
template<typename R, class T, class B1, class B2, class B3, class A1, class A2, class A3, class A4>
inline void MergedCallbacks::registerUniqueCallback( CallbackPriority priority,
boost::_bi::bind_t< R, boost::_mfi::mf3<R, T, B1, B2, B3>, boost::_bi::list4<boost::_bi::value<A1*>, boost::_bi::value<A2>, boost::_bi::value<A3>, boost::_bi::value<A4> > > bind_object )
{
if( hasFunction( priority, bind_object ) )
return;
registerCallback( priority, bind_object );
}
template<typename R, class T,
class B1, class B2, class B3, class B4,
class A1, class A2, class A3, class A4, class A5>
inline void MergedCallbacks::registerUniqueCallback( CallbackPriority priority,
boost::_bi::bind_t< R, boost::_mfi::mf4<R, T, B1, B2, B3, B4>,
boost::_bi::list5<boost::_bi::value<A1*>, boost::_bi::value<A2>, boost::_bi::value<A3>, boost::_bi::value<A4>, boost::_bi::value<A5> > > bind_object )
{
if( hasFunction( priority, bind_object ) )
return;
registerCallback( priority, bind_object );
}
template<typename R, class T,
class B1, class B2, class B3, class B4, class B5,
class A1, class A2, class A3, class A4, class A5, class A6>
inline void MergedCallbacks::registerUniqueCallback( CallbackPriority priority,
boost::_bi::bind_t< R, boost::_mfi::mf5<R, T, B1, B2, B3, B4, B5>,
boost::_bi::list6<boost::_bi::value<A1*>, boost::_bi::value<A2>, boost::_bi::value<A3>, boost::_bi::value<A4>, boost::_bi::value<A5>, boost::_bi::value<A6> > > bind_object )
{
if( hasFunction( priority, bind_object ) )
return;
registerCallback( priority, bind_object );
}
#endif