sigslot.h

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// sigslot.h: Signal/Slot classes
// 
// Written by Sarah Thompson (sarah@telergy.com) 2002.
//
// License: Public domain. You are free to use this code however you like, with the proviso that
//          the author takes on no responsibility or liability for any use.
//
// QUICK DOCUMENTATION 
//              
//                              (see also the full documentation at http://sigslot.sourceforge.net/)
//
//              #define switches
//                      SIGSLOT_PURE_ISO                        - Define this to force ISO C++ compliance. This also disables
//                                                                                all of the thread safety support on platforms where it is 
//                                                                                available.
//
//                      SIGSLOT_USE_POSIX_THREADS       - Force use of Posix threads when using a C++ compiler other than
//                                                                                gcc on a platform that supports Posix threads. (When using gcc,
//                                                                                this is the default - use SIGSLOT_PURE_ISO to disable this if 
//                                                                                necessary)
//
//                      SIGSLOT_DEFAULT_MT_POLICY       - Where thread support is enabled, this defaults to multi_threaded_global.
//                                                                                Otherwise, the default is single_threaded. #define this yourself to
//                                                                                override the default. In pure ISO mode, anything other than
//                                                                                single_threaded will cause a compiler error.
//
//              PLATFORM NOTES
//
//                      Win32                                           - On Win32, the WIN32 symbol must be #defined. Most mainstream
//                                                                                compilers do this by default, but you may need to define it
//                                                                                yourself if your build environment is less standard. This causes
//                                                                                the Win32 thread support to be compiled in and used automatically.
//
//                      Unix/Linux/BSD, etc.            - If you're using gcc, it is assumed that you have Posix threads
//                                                                                available, so they are used automatically. You can override this
//                                                                                (as under Windows) with the SIGSLOT_PURE_ISO switch. If you're using
//                                                                                something other than gcc but still want to use Posix threads, you
//                                                                                need to #define SIGSLOT_USE_POSIX_THREADS.
//
//                      ISO C++                                         - If none of the supported platforms are detected, or if
//                                                                                SIGSLOT_PURE_ISO is defined, all multithreading support is turned off,
//                                                                                along with any code that might cause a pure ISO C++ environment to
//                                                                                complain. Before you ask, gcc -ansi -pedantic won't compile this 
//                                                                                library, but gcc -ansi is fine. Pedantic mode seems to throw a lot of
//                                                                                errors that aren't really there. If you feel like investigating this,
//                                                                                please contact the author.
//
//              
//              THREADING MODES
//
//                      single_threaded                         - Your program is assumed to be single threaded from the point of view
//                                                                                of signal/slot usage (i.e. all objects using signals and slots are
//                                                                                created and destroyed from a single thread). Behaviour if objects are
//                                                                                destroyed concurrently is undefined (i.e. you'll get the occasional
//                                                                                segmentation fault/memory exception).
//
//                      multi_threaded_global           - Your program is assumed to be multi threaded. Objects using signals and
//                                                                                slots can be safely created and destroyed from any thread, even when
//                                                                                connections exist. In multi_threaded_global mode, this is achieved by a
//                                                                                single global mutex (actually a critical section on Windows because they
//                                                                                are faster). This option uses less OS resources, but results in more
//                                                                                opportunities for contention, possibly resulting in more context switches
//                                                                                than are strictly necessary.
//
//                      multi_threaded_local            - Behaviour in this mode is essentially the same as multi_threaded_global,
//                                                                                except that each signal, and each object that inherits has_slots, all 
//                                                                                have their own mutex/critical section. In practice, this means that
//                                                                                mutex collisions (and hence context switches) only happen if they are
//                                                                                absolutely essential. However, on some platforms, creating a lot of 
//                                                                                mutexes can slow down the whole OS, so use this option with care.
//
//              USING THE LIBRARY
//
//                      See the full documentation at http://sigslot.sourceforge.net/
//
//

#ifndef SIGSLOT_H__
#define SIGSLOT_H__

#include <set>
#include <list>

#if defined(SIGSLOT_PURE_ISO) || (!defined(WIN32) && !defined(__GNUG__) && !defined(SIGSLOT_USE_POSIX_THREADS))
#       define _SIGSLOT_SINGLE_THREADED
#elif defined(WIN32)
#       define _SIGSLOT_HAS_WIN32_THREADS
#       include <windows.h>
#elif defined(__GNUG__) || defined(SIGSLOT_USE_POSIX_THREADS)
#       define _SIGSLOT_HAS_POSIX_THREADS
#       include <pthread.h>
#else
#       define _SIGSLOT_SINGLE_THREADED
#endif

#ifndef SIGSLOT_DEFAULT_MT_POLICY
#       ifdef _SIGSLOT_SINGLE_THREADED
#               define SIGSLOT_DEFAULT_MT_POLICY single_threaded
#       else
#               define SIGSLOT_DEFAULT_MT_POLICY multi_threaded_local
#       endif
#endif


namespace sigslot {
    
        class single_threaded
        {
        public:
                single_threaded()
                {
                        ;
                }
        
                virtual ~single_threaded()
                {
                        ;
                }
        
                void lock()
                {
                        ;
                }
        
                void unlock()
                {
                        ;
                }
        };
    
#ifdef _SIGSLOT_HAS_WIN32_THREADS
        // The multi threading policies only get compiled in if they are enabled.
        class multi_threaded_global
        {
        public:
                multi_threaded_global()
                {
                        static bool isinitialised = false;
            
                        if(!isinitialised)
                        {
                                InitializeCriticalSection(get_critsec());
                                isinitialised = true;
                        }
                }
        
                multi_threaded_global(const multi_threaded_global&)
                {
                        ;
                }
        
                virtual ~multi_threaded_global()
                {
                        ;
                }
        
                void lock()
                {
                        EnterCriticalSection(get_critsec());
                }
        
                void unlock()
                {
                        LeaveCriticalSection(get_critsec());
                }
        
        private:
                CRITICAL_SECTION* get_critsec()
                {
                        static CRITICAL_SECTION g_critsec;
                        return &g_critsec;
                }
        };
    
        class multi_threaded_local
        {
        public:
                multi_threaded_local()
                {
                        InitializeCriticalSection(&m_critsec);
                }
        
                multi_threaded_local(const multi_threaded_local&)
                {
                        InitializeCriticalSection(&m_critsec);
                }
        
                virtual ~multi_threaded_local()
                {
                        DeleteCriticalSection(&m_critsec);
                }
        
                void lock()
                {
                        EnterCriticalSection(&m_critsec);
                }
        
                void unlock()
                {
                        LeaveCriticalSection(&m_critsec);
                }
        
        private:
                CRITICAL_SECTION m_critsec;
        };
#endif // _SIGSLOT_HAS_WIN32_THREADS
    
#ifdef _SIGSLOT_HAS_POSIX_THREADS
        // The multi threading policies only get compiled in if they are enabled.
        class multi_threaded_global
        {
        public:
                multi_threaded_global()
                {
                        pthread_mutex_init(get_mutex(), NULL);
                }
        
                multi_threaded_global(const multi_threaded_global&)
                {
                        ;
                }
        
                virtual ~multi_threaded_global()
                {
                        ;
                }
        
                void lock()
                {
                        pthread_mutex_lock(get_mutex());
                }
        
                void unlock()
                {
                        pthread_mutex_unlock(get_mutex());
                }
        
        private:
                pthread_mutex_t* get_mutex()
                {
                        static pthread_mutex_t g_mutex;
                        return &g_mutex;
                }
        };
    
        class multi_threaded_local
        {
        public:
                multi_threaded_local()
                {
                        pthread_mutex_init(&m_mutex, NULL);
                }
        
                multi_threaded_local(const multi_threaded_local&)
                {
                        pthread_mutex_init(&m_mutex, NULL);
                }
        
        virtual ~multi_threaded_local()
                {
                        pthread_mutex_destroy(&m_mutex);
                }
        
                void lock()
                {
                        pthread_mutex_lock(&m_mutex);
                }
        
                void unlock()
                {
                        pthread_mutex_unlock(&m_mutex);
                }
        
        private:
                pthread_mutex_t m_mutex;
        };
#endif // _SIGSLOT_HAS_POSIX_THREADS
    
        template<class mt_policy>
        class lock_block
        {
        public:
                mt_policy *m_mutex;
        
                lock_block(mt_policy *mtx)
        : m_mutex(mtx)
                {
                        m_mutex->lock();
                }
        
                ~lock_block()
                {
                        m_mutex->unlock();
                }
        };
    
        template<class mt_policy>
        class has_slots;
    
        template<class mt_policy>
        class _connection_base0
        {
        public:
        virtual ~_connection_base0() { }
                virtual has_slots<mt_policy>* getdest() const = 0;
                virtual void emit() = 0;
                virtual _connection_base0* clone() = 0;
                virtual _connection_base0* duplicate(has_slots<mt_policy>* pnewdest) = 0;
        };
    
        template<class arg1_type, class mt_policy>
        class _connection_base1
        {
        public:
        virtual ~_connection_base1() { }
                virtual has_slots<mt_policy>* getdest() const = 0;
                virtual void emit(arg1_type) = 0;
                virtual _connection_base1<arg1_type, mt_policy>* clone() = 0;
                virtual _connection_base1<arg1_type, mt_policy>* duplicate(has_slots<mt_policy>* pnewdest) = 0;
        };
    
        template<class arg1_type, class arg2_type, class mt_policy>
        class _connection_base2
        {
        public:
        virtual ~_connection_base2() { }
                virtual has_slots<mt_policy>* getdest() const = 0;
                virtual void emit(arg1_type, arg2_type) = 0;
                virtual _connection_base2<arg1_type, arg2_type, mt_policy>* clone() = 0;
                virtual _connection_base2<arg1_type, arg2_type, mt_policy>* duplicate(has_slots<mt_policy>* pnewdest) = 0;
        };
    
        template<class arg1_type, class arg2_type, class arg3_type, class mt_policy>
        class _connection_base3
        {
        public:
        virtual ~_connection_base3() { }
                virtual has_slots<mt_policy>* getdest() const = 0;
                virtual void emit(arg1_type, arg2_type, arg3_type) = 0;
                virtual _connection_base3<arg1_type, arg2_type, arg3_type, mt_policy>* clone() = 0;
                virtual _connection_base3<arg1_type, arg2_type, arg3_type, mt_policy>* duplicate(has_slots<mt_policy>* pnewdest) = 0;
        };
    
        template<class arg1_type, class arg2_type, class arg3_type, class arg4_type, class mt_policy>
        class _connection_base4
        {
        public:
        virtual ~_connection_base4() { }
                virtual has_slots<mt_policy>* getdest() const = 0;
                virtual void emit(arg1_type, arg2_type, arg3_type, arg4_type) = 0;
                virtual _connection_base4<arg1_type, arg2_type, arg3_type, arg4_type, mt_policy>* clone() = 0;
                virtual _connection_base4<arg1_type, arg2_type, arg3_type, arg4_type, mt_policy>* duplicate(has_slots<mt_policy>* pnewdest) = 0;
        };
    
        template<class arg1_type, class arg2_type, class arg3_type, class arg4_type,
        class arg5_type, class mt_policy>
        class _connection_base5
        {
        public:
        virtual ~_connection_base5() { }
                virtual has_slots<mt_policy>* getdest() const = 0;
                virtual void emit(arg1_type, arg2_type, arg3_type, arg4_type, 
                          arg5_type) = 0;
                virtual _connection_base5<arg1_type, arg2_type, arg3_type, arg4_type,
        arg5_type, mt_policy>* clone() = 0;
                virtual _connection_base5<arg1_type, arg2_type, arg3_type, arg4_type,
        arg5_type, mt_policy>* duplicate(has_slots<mt_policy>* pnewdest) = 0;
        };
    
        template<class arg1_type, class arg2_type, class arg3_type, class arg4_type,
        class arg5_type, class arg6_type, class mt_policy>
        class _connection_base6
        {
        public:
        virtual ~_connection_base6() { }
                virtual has_slots<mt_policy>* getdest() const = 0;
                virtual void emit(arg1_type, arg2_type, arg3_type, arg4_type, arg5_type,
                          arg6_type) = 0;
                virtual _connection_base6<arg1_type, arg2_type, arg3_type, arg4_type,
        arg5_type, arg6_type, mt_policy>* clone() = 0;
                virtual _connection_base6<arg1_type, arg2_type, arg3_type, arg4_type,
        arg5_type, arg6_type, mt_policy>* duplicate(has_slots<mt_policy>* pnewdest) = 0;
        };
    
        template<class arg1_type, class arg2_type, class arg3_type, class arg4_type,
        class arg5_type, class arg6_type, class arg7_type, class mt_policy>
        class _connection_base7
        {
        public:
        virtual ~_connection_base7() { }
                virtual has_slots<mt_policy>* getdest() const = 0;
                virtual void emit(arg1_type, arg2_type, arg3_type, arg4_type, arg5_type,
                          arg6_type, arg7_type) = 0;
                virtual _connection_base7<arg1_type, arg2_type, arg3_type, arg4_type,
        arg5_type, arg6_type, arg7_type, mt_policy>* clone() = 0;
                virtual _connection_base7<arg1_type, arg2_type, arg3_type, arg4_type,
        arg5_type, arg6_type, arg7_type, mt_policy>* duplicate(has_slots<mt_policy>* pnewdest) = 0;
        };
    
        template<class arg1_type, class arg2_type, class arg3_type, class arg4_type,
        class arg5_type, class arg6_type, class arg7_type, class arg8_type, class mt_policy>
        class _connection_base8
        {
        public:
        virtual ~_connection_base8() { }
                virtual has_slots<mt_policy>* getdest() const = 0;
                virtual void emit(arg1_type, arg2_type, arg3_type, arg4_type, arg5_type,
                          arg6_type, arg7_type, arg8_type) = 0;
                virtual _connection_base8<arg1_type, arg2_type, arg3_type, arg4_type,
        arg5_type, arg6_type, arg7_type, arg8_type, mt_policy>* clone() = 0;
                virtual _connection_base8<arg1_type, arg2_type, arg3_type, arg4_type,
        arg5_type, arg6_type, arg7_type, arg8_type, mt_policy>* duplicate(has_slots<mt_policy>* pnewdest) = 0;
        };
    
        template<class mt_policy>
        class _signal_base : public mt_policy
        {
        public:
                virtual void slot_disconnect(has_slots<mt_policy>* pslot) = 0;
                virtual void slot_duplicate(const has_slots<mt_policy>* poldslot, has_slots<mt_policy>* pnewslot) = 0;
        };
    
        template<class  mt_policy = SIGSLOT_DEFAULT_MT_POLICY>
        class has_slots : public mt_policy 
        {
        private:
                typedef typename std::set<_signal_base<mt_policy> *> sender_set;
                typedef typename sender_set::const_iterator const_iterator;
        
        public:
                has_slots()
                {
                        ;
                }
        
                has_slots(const has_slots& hs)
        : mt_policy(hs)
                {
                        lock_block<mt_policy> lock(this);
                        const_iterator it = hs.m_senders.begin();
                        const_iterator itEnd = hs.m_senders.end();
            
                        while(it != itEnd)
                        {
                                (*it)->slot_duplicate(&hs, this);
                                m_senders.insert(*it);
                                ++it;
                        }
                } 
        
                void signal_connect(_signal_base<mt_policy>* sender)
                {
                        lock_block<mt_policy> lock(this);
                        m_senders.insert(sender);
                }
        
                void signal_disconnect(_signal_base<mt_policy>* sender)
                {
                        lock_block<mt_policy> lock(this);
                        m_senders.erase(sender);
                }
        
                virtual ~has_slots()
                {
                        disconnect_all();
                }
        
                void disconnect_all()
                {
                        lock_block<mt_policy> lock(this);
                        const_iterator it = m_senders.begin();
                        const_iterator itEnd = m_senders.end();
            
                        while(it != itEnd)
                        {
                                (*it)->slot_disconnect(this);
                                ++it;
                        }
            
                        m_senders.erase(m_senders.begin(), m_senders.end());
                }
        
        private:
                sender_set m_senders;
        };
    
        template<class mt_policy>
        class _signal_base0 : public _signal_base<mt_policy>
        {
        public:
                typedef typename std::list<_connection_base0<mt_policy> *>  connections_list;
                typedef typename connections_list::const_iterator const_iterator;
                typedef typename connections_list::iterator iterator;
        
                _signal_base0()
                {
                        ;
                }
        
                _signal_base0(const _signal_base0& s)
        : _signal_base<mt_policy>(s)
                {
                        lock_block<mt_policy> lock(this);
                        const_iterator  it = s.m_connected_slots.begin();
                        const_iterator itEnd = s.m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                (*it)->getdest()->signal_connect(this);
                                m_connected_slots.push_back((*it)->clone());
                
                                ++it;
                        }
                }
        
                ~_signal_base0()
                {
                        disconnect_all();
                }
        
                void disconnect_all()
                {
                        lock_block<mt_policy> lock(this);
                        const_iterator it  = m_connected_slots.begin();
                        const_iterator itEnd = m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                (*it)->getdest()->signal_disconnect(this);
                                delete *it;
                
                                ++it;
                        }
            
                        m_connected_slots.erase(m_connected_slots.begin(), m_connected_slots.end());
                }
        
                void disconnect(has_slots<mt_policy>* pclass)
                {
                        lock_block<mt_policy> lock(this);
                        iterator it = m_connected_slots.begin();
                        iterator itEnd = m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                if((*it)->getdest() == pclass)
                                {
                                        delete *it;
                                        m_connected_slots.erase(it);
                                        pclass->signal_disconnect(this);
                                        return;
                                }
                
                                ++it;
                        }
                }
        
                void slot_disconnect(has_slots<mt_policy>* pslot)
                {
                        lock_block<mt_policy> lock(this);
                        iterator it = m_connected_slots.begin();
                        iterator itEnd = m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                iterator itNext = it;
                                ++itNext;
                
                                if((*it)->getdest() == pslot)
                                {
                    delete *it;
                                        m_connected_slots.erase(it);
                                }
                
                                it = itNext;
                        }
                }
        
                void slot_duplicate(const has_slots<mt_policy>* oldtarget, has_slots<mt_policy>* newtarget)
                {
                        lock_block<mt_policy> lock(this);
                        iterator it = m_connected_slots.begin();
                        iterator itEnd = m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                if((*it)->getdest() == oldtarget)
                                {
                                        m_connected_slots.push_back((*it)->duplicate(newtarget));
                                }
                
                                ++it;
                        }
                }
        
        protected:
                connections_list m_connected_slots;   
        };
    
        template<class arg1_type, class mt_policy>
        class _signal_base1 : public _signal_base<mt_policy>
        {
        public:
                typedef typename std::list<_connection_base1<arg1_type, mt_policy> *>  connections_list;
                typedef typename connections_list::const_iterator const_iterator;
                typedef typename connections_list::iterator iterator;
        
                _signal_base1()
                {
                        ;
                }
        
                _signal_base1(const _signal_base1<arg1_type, mt_policy>& s)
        : _signal_base<mt_policy>(s)
                {
                        lock_block<mt_policy> lock(this);
                        const_iterator it = s.m_connected_slots.begin();
                        const_iterator itEnd = s.m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                (*it)->getdest()->signal_connect(this);
                                m_connected_slots.push_back((*it)->clone());
                
                                ++it;
                        }
                }
        
                void slot_duplicate(const has_slots<mt_policy>* oldtarget, has_slots<mt_policy>* newtarget)
                {
                        lock_block<mt_policy> lock(this);
                        iterator it = m_connected_slots.begin();
                        iterator itEnd = m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                if((*it)->getdest() == oldtarget)
                                {
                                        m_connected_slots.push_back((*it)->duplicate(newtarget));
                                }
                
                                ++it;
                        }
                }
        
                ~_signal_base1()
                {
                        disconnect_all();
                }
        
                void disconnect_all()
                {
                        lock_block<mt_policy> lock(this);
                        const_iterator it = m_connected_slots.begin();
                        const_iterator itEnd = m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                (*it)->getdest()->signal_disconnect(this);
                                delete *it;
                
                                ++it;
                        }
            
                        m_connected_slots.erase(m_connected_slots.begin(), m_connected_slots.end());
                }
        
                void disconnect(has_slots<mt_policy>* pclass)
                {
                        lock_block<mt_policy> lock(this);
                        iterator it = m_connected_slots.begin();
                        iterator itEnd = m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                if((*it)->getdest() == pclass)
                                {
                                        delete *it;
                                        m_connected_slots.erase(it);
                                        pclass->signal_disconnect(this);
                                        return;
                                }
                
                                ++it;
                        }
                }
        
                void slot_disconnect(has_slots<mt_policy>* pslot)
                {
                        lock_block<mt_policy> lock(this);
                        iterator it = m_connected_slots.begin();
                        iterator itEnd = m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                iterator itNext = it;
                                ++itNext;
                
                                if((*it)->getdest() == pslot)
                                {
                    delete *it;
                                        m_connected_slots.erase(it);
                                }
                
                                it = itNext;
                        }
                }
        
        
        protected:
                connections_list m_connected_slots;   
        };
    
        template<class arg1_type, class arg2_type, class mt_policy>
        class _signal_base2 : public _signal_base<mt_policy>
        {
        public:
                typedef typename std::list<_connection_base2<arg1_type, arg2_type, mt_policy> *>
        connections_list;
        typedef typename connections_list::const_iterator const_iterator;
        typedef typename connections_list::iterator iterator;
        
                _signal_base2()
                {
                        ;
                }
        
                _signal_base2(const _signal_base2<arg1_type, arg2_type, mt_policy>& s)
        : _signal_base<mt_policy>(s)
                {
                        lock_block<mt_policy> lock(this);
                        const_iterator it = s.m_connected_slots.begin();
                        const_iterator itEnd = s.m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                (*it)->getdest()->signal_connect(this);
                                m_connected_slots.push_back((*it)->clone());
                
                                ++it;
                        }
                }
        
                void slot_duplicate(const has_slots<mt_policy>* oldtarget, has_slots<mt_policy>* newtarget)
                {
                        lock_block<mt_policy> lock(this);
                        iterator it = m_connected_slots.begin();
                        iterator itEnd = m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                if((*it)->getdest() == oldtarget)
                                {
                                        m_connected_slots.push_back((*it)->duplicate(newtarget));
                                }
                
                                ++it;
                        }
                }
        
                ~_signal_base2()
                {
                        disconnect_all();
                }
        
                void disconnect_all()
                {
                        lock_block<mt_policy> lock(this);
                        const_iterator it = m_connected_slots.begin();
                        const_iterator itEnd = m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                (*it)->getdest()->signal_disconnect(this);
                                delete *it;
                
                                ++it;
                        }
            
                        m_connected_slots.erase(m_connected_slots.begin(), m_connected_slots.end());
                }
        
                void disconnect(has_slots<mt_policy>* pclass)
                {
                        lock_block<mt_policy> lock(this);
                        iterator it = m_connected_slots.begin();
                        iterator itEnd = m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                if((*it)->getdest() == pclass)
                                {
                                        delete *it;
                                        m_connected_slots.erase(it);
                                        pclass->signal_disconnect(this);
                                        return;
                                }
                
                                ++it;
                        }
                }
        
                void slot_disconnect(has_slots<mt_policy>* pslot)
                {
                        lock_block<mt_policy> lock(this);
                        iterator it = m_connected_slots.begin();
                        iterator itEnd = m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                iterator itNext = it;
                                ++itNext;
                
                                if((*it)->getdest() == pslot)
                                {
                    delete *it;
                                        m_connected_slots.erase(it);
                                }
                
                                it = itNext;
                        }
                }
        
        protected:
                connections_list m_connected_slots;   
        };
    
        template<class arg1_type, class arg2_type, class arg3_type, class mt_policy>
        class _signal_base3 : public _signal_base<mt_policy>
        {
        public:
                typedef std::list<_connection_base3<arg1_type, arg2_type, arg3_type, mt_policy> *>
        connections_list;
        
        typedef typename connections_list::const_iterator const_iterator;
        typedef typename connections_list::iterator iterator;
                _signal_base3()
                {
                        ;
                }
        
                _signal_base3(const _signal_base3<arg1_type, arg2_type, arg3_type, mt_policy>& s)
        : _signal_base<mt_policy>(s)
                {
                        lock_block<mt_policy> lock(this);
                        const_iterator it = s.m_connected_slots.begin();
                        const_iterator itEnd = s.m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                (*it)->getdest()->signal_connect(this);
                                m_connected_slots.push_back((*it)->clone());
                
                                ++it;
                        }
                }
        
                void slot_duplicate(const has_slots<mt_policy>* oldtarget, has_slots<mt_policy>* newtarget)
                {
                        lock_block<mt_policy> lock(this);
                        iterator it = m_connected_slots.begin();
                        iterator itEnd = m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                if((*it)->getdest() == oldtarget)
                                {
                                        m_connected_slots.push_back((*it)->duplicate(newtarget));
                                }
                
                                ++it;
                        }
                }
        
                ~_signal_base3()
                {
                        disconnect_all();
                }
        
                void disconnect_all()
                {
                        lock_block<mt_policy> lock(this);
                        const_iterator it = m_connected_slots.begin();
                        const_iterator itEnd = m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                (*it)->getdest()->signal_disconnect(this);
                                delete *it;
                
                                ++it;
                        }
            
                        m_connected_slots.erase(m_connected_slots.begin(), m_connected_slots.end());
                }
        
                void disconnect(has_slots<mt_policy>* pclass)
                {
                        lock_block<mt_policy> lock(this);
                        iterator it = m_connected_slots.begin();
                        iterator itEnd = m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                if((*it)->getdest() == pclass)
                                {
                                        delete *it;
                                        m_connected_slots.erase(it);
                                        pclass->signal_disconnect(this);
                                        return;
                                }
                
                                ++it;
                        }
                }
        
                void slot_disconnect(has_slots<mt_policy>* pslot)
                {
                        lock_block<mt_policy> lock(this);
                        iterator it = m_connected_slots.begin();
                        iterator itEnd = m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                iterator itNext = it;
                                ++itNext;
                
                                if((*it)->getdest() == pslot)
                                {
                    delete *it;
                                        m_connected_slots.erase(it);
                                }
                
                                it = itNext;
                        }
                }
        
        protected:
                connections_list m_connected_slots;   
        };
    
        template<class arg1_type, class arg2_type, class arg3_type, class arg4_type, class mt_policy>
        class _signal_base4 : public _signal_base<mt_policy>
        {
        public:
                typedef std::list<_connection_base4<arg1_type, arg2_type, arg3_type,
        arg4_type, mt_policy> *>  connections_list;
        typedef typename connections_list::const_iterator const_iterator;
        typedef typename connections_list::iterator iterator;
        
                _signal_base4()
                {
                        ;
                }
        
                _signal_base4(const _signal_base4<arg1_type, arg2_type, arg3_type, arg4_type, mt_policy>& s)
        : _signal_base<mt_policy>(s)
                {
                        lock_block<mt_policy> lock(this);
                        const_iterator it = s.m_connected_slots.begin();
                        const_iterator itEnd = s.m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                (*it)->getdest()->signal_connect(this);
                                m_connected_slots.push_back((*it)->clone());
                
                                ++it;
                        }
                }
        
                void slot_duplicate(const has_slots<mt_policy>* oldtarget, has_slots<mt_policy>* newtarget)
                {
                        lock_block<mt_policy> lock(this);
                        iterator it = m_connected_slots.begin();
                        iterator itEnd = m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                if((*it)->getdest() == oldtarget)
                                {
                                        m_connected_slots.push_back((*it)->duplicate(newtarget));
                                }
                
                                ++it;
                        }
                }
        
                ~_signal_base4()
                {
                        disconnect_all();
                }
        
                void disconnect_all()
                {
                        lock_block<mt_policy> lock(this);
                        const_iterator it = m_connected_slots.begin();
                        const_iterator itEnd = m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                (*it)->getdest()->signal_disconnect(this);
                                delete *it;
                
                                ++it;
                        }
            
                        m_connected_slots.erase(m_connected_slots.begin(), m_connected_slots.end());
                }
        
                void disconnect(has_slots<mt_policy>* pclass)
                {
                        lock_block<mt_policy> lock(this);
                        iterator it = m_connected_slots.begin();
                        iterator itEnd = m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                if((*it)->getdest() == pclass)
                                {
                                        delete *it;
                                        this->m_connected_slots.erase(it);
                                        pclass->signal_disconnect(this);
                                        return;
                                }
                
                                ++it;
                        }
                }
        
                void slot_disconnect(has_slots<mt_policy>* pslot)
                {
                        lock_block<mt_policy> lock(this);
                        iterator it = m_connected_slots.begin();
                        iterator itEnd = m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                iterator itNext = it;
                                ++itNext;
                
                                if((*it)->getdest() == pslot)
                                {
                    delete *it;
                                        m_connected_slots.erase(it);
                                }
                
                                it = itNext;
                        }
                }
        
        protected:
                connections_list m_connected_slots;   
        };
    
        template<class arg1_type, class arg2_type, class arg3_type, class arg4_type,
        class arg5_type, class mt_policy>
        class _signal_base5 : public _signal_base<mt_policy>
        {
        public:
                typedef std::list<_connection_base5<arg1_type, arg2_type, arg3_type,
        arg4_type, arg5_type, mt_policy> *>  connections_list;
        typedef typename connections_list::const_iterator const_iterator;
        typedef typename connections_list::iterator iterator;
        
                _signal_base5()
                {
                        ;
                }
        
                _signal_base5(const _signal_base5<arg1_type, arg2_type, arg3_type, arg4_type,
                      arg5_type, mt_policy>& s)
        : _signal_base<mt_policy>(s)
                {
                        lock_block<mt_policy> lock(this);
                        const_iterator it = s.m_connected_slots.begin();
                        const_iterator itEnd = s.m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                (*it)->getdest()->signal_connect(this);
                                m_connected_slots.push_back((*it)->clone());
                
                                ++it;
                        }
                }
        
                void slot_duplicate(const has_slots<mt_policy>* oldtarget, has_slots<mt_policy>* newtarget)
                {
                        lock_block<mt_policy> lock(this);
                        iterator it = m_connected_slots.begin();
                        iterator itEnd = m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                if((*it)->getdest() == oldtarget)
                                {
                                        m_connected_slots.push_back((*it)->duplicate(newtarget));
                                }
                
                                ++it;
                        }
                }
        
                ~_signal_base5()
                {
                        disconnect_all();
                }
        
                void disconnect_all()
                {
                        lock_block<mt_policy> lock(this);
                        const_iterator it = m_connected_slots.begin();
                        const_iterator itEnd = m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                (*it)->getdest()->signal_disconnect(this);
                                delete *it;
                
                                ++it;
                        }
            
                        m_connected_slots.erase(m_connected_slots.begin(), m_connected_slots.end());
                }
        
                void disconnect(has_slots<mt_policy>* pclass)
                {
                        lock_block<mt_policy> lock(this);
                        iterator it = m_connected_slots.begin();
                        iterator itEnd = m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                if((*it)->getdest() == pclass)
                                {
                                        delete *it;
                                        m_connected_slots.erase(it);
                                        pclass->signal_disconnect(this);
                                        return;
                                }
                
                                ++it;
                        }
                }
        
                void slot_disconnect(has_slots<mt_policy>* pslot)
                {
                        lock_block<mt_policy> lock(this);
                        iterator it = m_connected_slots.begin();
                        iterator itEnd = m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                iterator itNext = it;
                                ++itNext;
                
                                if((*it)->getdest() == pslot)
                                {
                    delete *it;
                                        m_connected_slots.erase(it);
                                }
                
                                it = itNext;
                        }
                }
        
        protected:
                connections_list m_connected_slots;   
        };
    
        template<class arg1_type, class arg2_type, class arg3_type, class arg4_type,
        class arg5_type, class arg6_type, class mt_policy>
        class _signal_base6 : public _signal_base<mt_policy>
        {
        public:
                typedef std::list<_connection_base6<arg1_type, arg2_type, arg3_type, 
        arg4_type, arg5_type, arg6_type, mt_policy> *>  connections_list;
        typedef typename connections_list::const_iterator const_iterator;
        typedef typename connections_list::iterator iterator;
        
                _signal_base6()
                {
                        ;
                }
        
                _signal_base6(const _signal_base6<arg1_type, arg2_type, arg3_type, arg4_type,
                      arg5_type, arg6_type, mt_policy>& s)
        : _signal_base<mt_policy>(s)
                {
                        lock_block<mt_policy> lock(this);
                        const_iterator it = s.m_connected_slots.begin();
                        const_iterator itEnd = s.m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                (*it)->getdest()->signal_connect(this);
                                m_connected_slots.push_back((*it)->clone());
                
                                ++it;
                        }
                }
        
                void slot_duplicate(const has_slots<mt_policy>* oldtarget, has_slots<mt_policy>* newtarget)
                {
                        lock_block<mt_policy> lock(this);
                        iterator it = m_connected_slots.begin();
                        iterator itEnd = m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                if((*it)->getdest() == oldtarget)
                                {
                                        m_connected_slots.push_back((*it)->duplicate(newtarget));
                                }
                
                                ++it;
                        }
                }
        
                ~_signal_base6()
                {
                        disconnect_all();
                }
        
                void disconnect_all()
                {
                        lock_block<mt_policy> lock(this);
                        const_iterator it = m_connected_slots.begin();
                        const_iterator itEnd = m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                (*it)->getdest()->signal_disconnect(this);
                                delete *it;
                
                                ++it;
                        }
            
                        m_connected_slots.erase(m_connected_slots.begin(), m_connected_slots.end());
                }
        
                void disconnect(has_slots<mt_policy>* pclass)
                {
                        lock_block<mt_policy> lock(this);
                        iterator it = m_connected_slots.begin();
                        iterator itEnd = m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                if((*it)->getdest() == pclass)
                                {
                                        delete *it;
                                        m_connected_slots.erase(it);
                                        pclass->signal_disconnect(this);
                                        return;
                                }
                
                                ++it;
                        }
                }
        
                void slot_disconnect(has_slots<mt_policy>* pslot)
                {
                        lock_block<mt_policy> lock(this);
                        iterator it = m_connected_slots.begin();
                        iterator itEnd = m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                iterator itNext = it;
                                ++itNext;
                
                                if((*it)->getdest() == pslot)
                                {
                    delete *it;
                                        m_connected_slots.erase(it);
                                }
                
                                it = itNext;
                        }
                }
        
        protected:
                connections_list m_connected_slots;   
        };
    
        template<class arg1_type, class arg2_type, class arg3_type, class arg4_type,
        class arg5_type, class arg6_type, class arg7_type, class mt_policy>
        class _signal_base7 : public _signal_base<mt_policy>
        {
        public:
                typedef std::list<_connection_base7<arg1_type, arg2_type, arg3_type, 
        arg4_type, arg5_type, arg6_type, arg7_type, mt_policy> *>  connections_list;
        typedef typename connections_list::const_iterator const_iterator;
        typedef typename connections_list::iterator iterator;
        
                _signal_base7()
                {
                        ;
                }
        
                _signal_base7(const _signal_base7<arg1_type, arg2_type, arg3_type, arg4_type,
                      arg5_type, arg6_type, arg7_type, mt_policy>& s)
        : _signal_base<mt_policy>(s)
                {
                        lock_block<mt_policy> lock(this);
                        const_iterator it = s.m_connected_slots.begin();
                        const_iterator itEnd = s.m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                (*it)->getdest()->signal_connect(this);
                                m_connected_slots.push_back((*it)->clone());
                
                                ++it;
                        }
                }
        
                void slot_duplicate(const has_slots<mt_policy>* oldtarget, has_slots<mt_policy>* newtarget)
                {
                        lock_block<mt_policy> lock(this);
                        iterator it = m_connected_slots.begin();
                        iterator itEnd = m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                if((*it)->getdest() == oldtarget)
                                {
                                        m_connected_slots.push_back((*it)->duplicate(newtarget));
                                }
                
                                ++it;
                        }
                }
        
                ~_signal_base7()
                {
                        disconnect_all();
                }
        
                void disconnect_all()
                {
                        lock_block<mt_policy> lock(this);
                        const_iterator it = m_connected_slots.begin();
                        const_iterator itEnd = m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                (*it)->getdest()->signal_disconnect(this);
                                delete *it;
                
                                ++it;
                        }
            
                        m_connected_slots.erase(m_connected_slots.begin(), m_connected_slots.end());
                }
        
                void disconnect(has_slots<mt_policy>* pclass)
                {
                        lock_block<mt_policy> lock(this);
                        iterator it = m_connected_slots.begin();
                        iterator itEnd = m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                if((*it)->getdest() == pclass)
                                {
                                        delete *it;
                                        m_connected_slots.erase(it);
                                        pclass->signal_disconnect(this);
                                        return;
                                }
                
                                ++it;
                        }
                }
        
                void slot_disconnect(has_slots<mt_policy>* pslot)
                {
                        lock_block<mt_policy> lock(this);
                        iterator it = m_connected_slots.begin();
                        iterator itEnd = m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                iterator itNext = it;
                                ++itNext;
                
                                if((*it)->getdest() == pslot)
                                {
                    delete *it;
                                        m_connected_slots.erase(it);
                                }
                
                                it = itNext;
                        }
                }
        
        protected:
                connections_list m_connected_slots;   
        };
    
        template<class arg1_type, class arg2_type, class arg3_type, class arg4_type,
        class arg5_type, class arg6_type, class arg7_type, class arg8_type, class mt_policy>
        class _signal_base8 : public _signal_base<mt_policy>
        {
        public:
                typedef std::list<_connection_base8<arg1_type, arg2_type, arg3_type, 
        arg4_type, arg5_type, arg6_type, arg7_type, arg8_type, mt_policy> *>
        connections_list;
        typedef typename connections_list::const_iterator const_iterator;
        typedef typename connections_list::iterator iterator;
        
                _signal_base8()
                {
                        ;
                }
        
                _signal_base8(const _signal_base8<arg1_type, arg2_type, arg3_type, arg4_type,
                      arg5_type, arg6_type, arg7_type, arg8_type, mt_policy>& s)
        : _signal_base<mt_policy>(s)
                {
                        lock_block<mt_policy> lock(this);
                        const_iterator it = s.m_connected_slots.begin();
                        const_iterator itEnd = s.m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                (*it)->getdest()->signal_connect(this);
                                m_connected_slots.push_back((*it)->clone());
                
                                ++it;
                        }
                }
        
                void slot_duplicate(const has_slots<mt_policy>* oldtarget, has_slots<mt_policy>* newtarget)
                {
                        lock_block<mt_policy> lock(this);
                        iterator it = m_connected_slots.begin();
                        iterator itEnd = m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                if((*it)->getdest() == oldtarget)
                                {
                                        m_connected_slots.push_back((*it)->duplicate(newtarget));
                                }
                
                                ++it;
                        }
                }
        
                ~_signal_base8()
                {
                        disconnect_all();
                }
        
                void disconnect_all()
                {
                        lock_block<mt_policy> lock(this);
                        const_iterator it = m_connected_slots.begin();
                        const_iterator itEnd = m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                (*it)->getdest()->signal_disconnect(this);
                                delete *it;
                
                                ++it;
                        }
            
                        m_connected_slots.erase(m_connected_slots.begin(), m_connected_slots.end());
                }
        
                void disconnect(has_slots<mt_policy>* pclass)
                {
                        lock_block<mt_policy> lock(this);
                        iterator it = m_connected_slots.begin();
                        iterator itEnd = m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                if((*it)->getdest() == pclass)
                                {
                                        delete *it;
                                        m_connected_slots.erase(it);
                                        pclass->signal_disconnect(this);
                                        return;
                                }
                
                                ++it;
                        }
                }
        
                void slot_disconnect(has_slots<mt_policy>* pslot)
                {
                        lock_block<mt_policy> lock(this);
                        iterator it = m_connected_slots.begin();
                        iterator itEnd = m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                iterator itNext = it;
                                ++itNext;
                
                                if((*it)->getdest() == pslot)
                                {
                    delete *it;
                                        m_connected_slots.erase(it);
                                }
                
                                it = itNext;
                        }
                }
        
        protected:
                connections_list m_connected_slots;   
        };
    
    
        template<class dest_type, class mt_policy>
        class _connection0 : public _connection_base0<mt_policy>
        {
        public:
                _connection0()
                {
                        this->pobject = NULL;
                        this->pmemfun = NULL;
                }
        
                _connection0(dest_type* pobject, void (dest_type::*pmemfun)())
                {
                        m_pobject = pobject;
                        m_pmemfun = pmemfun;
                }
        
                virtual _connection_base0<mt_policy>* clone()
                {
                        return new _connection0<dest_type, mt_policy>(*this);
                }
        
                virtual _connection_base0<mt_policy>* duplicate(has_slots<mt_policy>* pnewdest)
                {
                        return new _connection0<dest_type, mt_policy>((dest_type *)pnewdest, m_pmemfun);
                }
        
                virtual void emit()
                {
                        (m_pobject->*m_pmemfun)();
                }
        
                virtual has_slots<mt_policy>* getdest() const
                {
                        return m_pobject;
                }
        
        private:
                dest_type* m_pobject;
                void (dest_type::* m_pmemfun)();
        };
    
        template<class dest_type, class arg1_type, class mt_policy>
        class _connection1 : public _connection_base1<arg1_type, mt_policy>
        {
        public:
                _connection1()
                {
                        this->pobject = NULL;
                        this->pmemfun = NULL;
                }
        
                _connection1(dest_type* pobject, void (dest_type::*pmemfun)(arg1_type))
                {
                        m_pobject = pobject;
                        m_pmemfun = pmemfun;
                }
        
                virtual _connection_base1<arg1_type, mt_policy>* clone()
                {
                        return new _connection1<dest_type, arg1_type, mt_policy>(*this);
                }
        
                virtual _connection_base1<arg1_type, mt_policy>* duplicate(has_slots<mt_policy>* pnewdest)
                {
                        return new _connection1<dest_type, arg1_type, mt_policy>((dest_type *)pnewdest, m_pmemfun);
                }
        
                virtual void emit(arg1_type a1)
                {
                        (m_pobject->*m_pmemfun)(a1);
                }
        
                virtual has_slots<mt_policy>* getdest() const
                {
                        return m_pobject;
                }
        
        private:
                dest_type* m_pobject;
                void (dest_type::* m_pmemfun)(arg1_type);
        };
    
        template<class dest_type, class arg1_type, class arg2_type, class mt_policy>
        class _connection2 : public _connection_base2<arg1_type, arg2_type, mt_policy>
        {
        public:
                _connection2()
                {
                        this->pobject = NULL;
                        this->pmemfun = NULL;
                }
        
                _connection2(dest_type* pobject, void (dest_type::*pmemfun)(arg1_type,
                                                                    arg2_type))
                {
                        m_pobject = pobject;
                        m_pmemfun = pmemfun;
                }
        
                virtual _connection_base2<arg1_type, arg2_type, mt_policy>* clone()
                {
                        return new _connection2<dest_type, arg1_type, arg2_type, mt_policy>(*this);
                }
        
                virtual _connection_base2<arg1_type, arg2_type, mt_policy>* duplicate(has_slots<mt_policy>* pnewdest)
                {
                        return new _connection2<dest_type, arg1_type, arg2_type, mt_policy>((dest_type *)pnewdest, m_pmemfun);
                }
        
                virtual void emit(arg1_type a1, arg2_type a2)
                {
                        (m_pobject->*m_pmemfun)(a1, a2);
                }
        
                virtual has_slots<mt_policy>* getdest() const
                {
                        return m_pobject;
                }
        
        private:
                dest_type* m_pobject;
                void (dest_type::* m_pmemfun)(arg1_type, arg2_type);
        };
    
        template<class dest_type, class arg1_type, class arg2_type, class arg3_type, class mt_policy>
        class _connection3 : public _connection_base3<arg1_type, arg2_type, arg3_type, mt_policy>
        {
        public:
                _connection3()
                {
                        this->pobject = NULL;
                        this->pmemfun = NULL;
                }
        
                _connection3(dest_type* pobject, void (dest_type::*pmemfun)(arg1_type,
                                                                    arg2_type, arg3_type))
                {
                        m_pobject = pobject;
                        m_pmemfun = pmemfun;
                }
        
                virtual _connection_base3<arg1_type, arg2_type, arg3_type, mt_policy>* clone()
                {
                        return new _connection3<dest_type, arg1_type, arg2_type, arg3_type, mt_policy>(*this);
                }
        
                virtual _connection_base3<arg1_type, arg2_type, arg3_type, mt_policy>* duplicate(has_slots<mt_policy>* pnewdest)
                {
                        return new _connection3<dest_type, arg1_type, arg2_type, arg3_type, mt_policy>((dest_type *)pnewdest, m_pmemfun);
                }
        
                virtual void emit(arg1_type a1, arg2_type a2, arg3_type a3)
                {
                        (m_pobject->*m_pmemfun)(a1, a2, a3);
                }
        
                virtual has_slots<mt_policy>* getdest() const
                {
                        return m_pobject;
                }
        
        private:
                dest_type* m_pobject;
                void (dest_type::* m_pmemfun)(arg1_type, arg2_type, arg3_type);
        };
    
        template<class dest_type, class arg1_type, class arg2_type, class arg3_type,
        class arg4_type, class mt_policy>
        class _connection4 : public _connection_base4<arg1_type, arg2_type,
    arg3_type, arg4_type, mt_policy>
        {
        public:
                _connection4()
                {
                        this->pobject = NULL;
                        this->pmemfun = NULL;
                }
        
                _connection4(dest_type* pobject, void (dest_type::*pmemfun)(arg1_type,
                                                                    arg2_type, arg3_type, arg4_type))
                {
                        m_pobject = pobject;
                        m_pmemfun = pmemfun;
                }
        
                virtual _connection_base4<arg1_type, arg2_type, arg3_type, arg4_type, mt_policy>* clone()
                {
                        return new _connection4<dest_type, arg1_type, arg2_type, arg3_type, arg4_type, mt_policy>(*this);
                }
        
                virtual _connection_base4<arg1_type, arg2_type, arg3_type, arg4_type, mt_policy>* duplicate(has_slots<mt_policy>* pnewdest)
                {
                        return new _connection4<dest_type, arg1_type, arg2_type, arg3_type, arg4_type, mt_policy>((dest_type *)pnewdest, m_pmemfun);
                }
        
                virtual void emit(arg1_type a1, arg2_type a2, arg3_type a3, 
                          arg4_type a4)
                {
                        (m_pobject->*m_pmemfun)(a1, a2, a3, a4);
                }
        
                virtual has_slots<mt_policy>* getdest() const
                {
                        return m_pobject;
                }
        
        private:
                dest_type* m_pobject;
                void (dest_type::* m_pmemfun)(arg1_type, arg2_type, arg3_type,
                                      arg4_type);
        };
    
        template<class dest_type, class arg1_type, class arg2_type, class arg3_type,
        class arg4_type, class arg5_type, class mt_policy>
        class _connection5 : public _connection_base5<arg1_type, arg2_type,
    arg3_type, arg4_type, arg5_type, mt_policy>
        {
        public:
                _connection5()
                {
                        this->pobject = NULL;
                        this->pmemfun = NULL;
                }
        
                _connection5(dest_type* pobject, void (dest_type::*pmemfun)(arg1_type,
                                                                    arg2_type, arg3_type, arg4_type, arg5_type))
                {
                        m_pobject = pobject;
                        m_pmemfun = pmemfun;
                }
        
                virtual _connection_base5<arg1_type, arg2_type, arg3_type, arg4_type, 
        arg5_type, mt_policy>* clone()
                {
                        return new _connection5<dest_type, arg1_type, arg2_type, arg3_type, arg4_type, 
            arg5_type, mt_policy>(*this);
                }
        
                virtual _connection_base5<arg1_type, arg2_type, arg3_type, arg4_type, 
        arg5_type, mt_policy>* duplicate(has_slots<mt_policy>* pnewdest)
                {
                        return new _connection5<dest_type, arg1_type, arg2_type, arg3_type, arg4_type, 
            arg5_type, mt_policy>((dest_type *)pnewdest, m_pmemfun);
                }
        
                virtual void emit(arg1_type a1, arg2_type a2, arg3_type a3, arg4_type a4,
                          arg5_type a5)
                {
                        (m_pobject->*m_pmemfun)(a1, a2, a3, a4, a5);
                }
        
                virtual has_slots<mt_policy>* getdest() const
                {
                        return m_pobject;
                }
        
        private:
                dest_type* m_pobject;
                void (dest_type::* m_pmemfun)(arg1_type, arg2_type, arg3_type, arg4_type,
                                      arg5_type);
        };
    
        template<class dest_type, class arg1_type, class arg2_type, class arg3_type,
        class arg4_type, class arg5_type, class arg6_type, class mt_policy>
        class _connection6 : public _connection_base6<arg1_type, arg2_type,
    arg3_type, arg4_type, arg5_type, arg6_type, mt_policy>
        {
        public:
                _connection6()
                {
                        this->pobject = NULL;
                        this->pmemfun = NULL;
                }
        
                _connection6(dest_type* pobject, void (dest_type::*pmemfun)(arg1_type,
                                                                    arg2_type, arg3_type, arg4_type, arg5_type, arg6_type))
                {
                        m_pobject = pobject;
                        m_pmemfun = pmemfun;
                }
        
                virtual _connection_base6<arg1_type, arg2_type, arg3_type, arg4_type, 
        arg5_type, arg6_type, mt_policy>* clone()
                {
                        return new _connection6<dest_type, arg1_type, arg2_type, arg3_type, arg4_type, 
            arg5_type, arg6_type, mt_policy>(*this);
                }
        
                virtual _connection_base6<arg1_type, arg2_type, arg3_type, arg4_type, 
        arg5_type, arg6_type, mt_policy>* duplicate(has_slots<mt_policy>* pnewdest)
                {
                        return new _connection6<dest_type, arg1_type, arg2_type, arg3_type, arg4_type, 
            arg5_type, arg6_type, mt_policy>((dest_type *)pnewdest, m_pmemfun);
                }
        
                virtual void emit(arg1_type a1, arg2_type a2, arg3_type a3, arg4_type a4,
                          arg5_type a5, arg6_type a6)
                {
                        (m_pobject->*m_pmemfun)(a1, a2, a3, a4, a5, a6);
                }
        
                virtual has_slots<mt_policy>* getdest() const
                {
                        return m_pobject;
                }
        
        private:
                dest_type* m_pobject;
                void (dest_type::* m_pmemfun)(arg1_type, arg2_type, arg3_type, arg4_type,
                                      arg5_type, arg6_type);
        };
    
        template<class dest_type, class arg1_type, class arg2_type, class arg3_type,
        class arg4_type, class arg5_type, class arg6_type, class arg7_type, class mt_policy>
        class _connection7 : public _connection_base7<arg1_type, arg2_type,
    arg3_type, arg4_type, arg5_type, arg6_type, arg7_type, mt_policy>
        {
        public:
                _connection7()
                {
                        this->pobject = NULL;
                        this->pmemfun = NULL;
                }
        
                _connection7(dest_type* pobject, void (dest_type::*pmemfun)(arg1_type,
                                                                    arg2_type, arg3_type, arg4_type, arg5_type, arg6_type, arg7_type))
                {
                        m_pobject = pobject;
                        m_pmemfun = pmemfun;
                }
        
                virtual _connection_base7<arg1_type, arg2_type, arg3_type, arg4_type, 
        arg5_type, arg6_type, arg7_type, mt_policy>* clone()
                {
                        return new _connection7<dest_type, arg1_type, arg2_type, arg3_type, arg4_type, 
            arg5_type, arg6_type, arg7_type, mt_policy>(*this);
                }
        
                virtual _connection_base7<arg1_type, arg2_type, arg3_type, arg4_type, 
        arg5_type, arg6_type, arg7_type, mt_policy>* duplicate(has_slots<mt_policy>* pnewdest)
                {
                        return new _connection7<dest_type, arg1_type, arg2_type, arg3_type, arg4_type, 
            arg5_type, arg6_type, arg7_type, mt_policy>((dest_type *)pnewdest, m_pmemfun);
                }
        
                virtual void emit(arg1_type a1, arg2_type a2, arg3_type a3, arg4_type a4,
                          arg5_type a5, arg6_type a6, arg7_type a7)
                {
                        (m_pobject->*m_pmemfun)(a1, a2, a3, a4, a5, a6, a7);
                }
        
                virtual has_slots<mt_policy>* getdest() const
                {
                        return m_pobject;
                }
        
        private:
                dest_type* m_pobject;
                void (dest_type::* m_pmemfun)(arg1_type, arg2_type, arg3_type, arg4_type,
                                      arg5_type, arg6_type, arg7_type);
        };
    
        template<class dest_type, class arg1_type, class arg2_type, class arg3_type,
        class arg4_type, class arg5_type, class arg6_type, class arg7_type, 
        class arg8_type, class mt_policy>
        class _connection8 : public _connection_base8<arg1_type, arg2_type,
    arg3_type, arg4_type, arg5_type, arg6_type, arg7_type, arg8_type, mt_policy>
        {
        public:
                _connection8()
                {
                        this->pobject = NULL;
                        this->pmemfun = NULL;
                }
        
                _connection8(dest_type* pobject, void (dest_type::*pmemfun)(arg1_type,
                                                                    arg2_type, arg3_type, arg4_type, arg5_type, arg6_type, 
                                                                    arg7_type, arg8_type))
                {
                        m_pobject = pobject;
                        m_pmemfun = pmemfun;
                }
        
                virtual _connection_base8<arg1_type, arg2_type, arg3_type, arg4_type, 
        arg5_type, arg6_type, arg7_type, arg8_type, mt_policy>* clone()
                {
                        return new _connection8<dest_type, arg1_type, arg2_type, arg3_type, arg4_type, 
            arg5_type, arg6_type, arg7_type, arg8_type, mt_policy>(*this);
                }
        
                virtual _connection_base8<arg1_type, arg2_type, arg3_type, arg4_type, 
        arg5_type, arg6_type, arg7_type, arg8_type, mt_policy>* duplicate(has_slots<mt_policy>* pnewdest)
                {
                        return new _connection8<dest_type, arg1_type, arg2_type, arg3_type, arg4_type, 
            arg5_type, arg6_type, arg7_type, arg8_type, mt_policy>((dest_type *)pnewdest, m_pmemfun);
                }
        
                virtual void emit(arg1_type a1, arg2_type a2, arg3_type a3, arg4_type a4,
                          arg5_type a5, arg6_type a6, arg7_type a7, arg8_type a8)
                {
                        (m_pobject->*m_pmemfun)(a1, a2, a3, a4, a5, a6, a7, a8);
                }
        
                virtual has_slots<mt_policy>* getdest() const
                {
                        return m_pobject;
                }
        
        private:
                dest_type* m_pobject;
                void (dest_type::* m_pmemfun)(arg1_type, arg2_type, arg3_type, arg4_type,
                                      arg5_type, arg6_type, arg7_type, arg8_type);
        };
    
        template<class mt_policy = SIGSLOT_DEFAULT_MT_POLICY>
        class signal0 : public _signal_base0<mt_policy>
        {
        public:
        typedef typename _signal_base0<mt_policy>::connections_list::const_iterator const_iterator;
                signal0()
                {
                        ;
                }
        
                signal0(const signal0<mt_policy>& s)
        : _signal_base0<mt_policy>(s)
                {
                        ;
                }
        
                template<class desttype>
        void connect(desttype* pclass, void (desttype::*pmemfun)())
                {
                        lock_block<mt_policy> lock(this);
                        _connection0<desttype, mt_policy>* conn = 
            new _connection0<desttype, mt_policy>(pclass, pmemfun);
                        this->m_connected_slots.push_back(conn);
                        pclass->signal_connect(this);
                }
        
                void emit()
                {
                        lock_block<mt_policy> lock(this);
                        const_iterator itNext, it = this->m_connected_slots.begin();
                        const_iterator itEnd = this->m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                itNext = it;
                                ++itNext;
                
                                (*it)->emit();
                
                                it = itNext;
                        }
                }
        
                void operator()()
                {
                        lock_block<mt_policy> lock(this);
                        const_iterator itNext, it = this->m_connected_slots.begin();
                        const_iterator itEnd = this->m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                itNext = it;
                                ++itNext;
                
                                (*it)->emit();
                
                                it = itNext;
                        }
                }
        };
    
        template<class arg1_type, class mt_policy = SIGSLOT_DEFAULT_MT_POLICY>
        class signal1 : public _signal_base1<arg1_type, mt_policy>
        {
        public:
        typedef typename _signal_base1<arg1_type, mt_policy>::connections_list::const_iterator const_iterator;
                signal1()
                {
                        ;
                }
        
                signal1(const signal1<arg1_type, mt_policy>& s)
        : _signal_base1<arg1_type, mt_policy>(s)
                {
                        ;
                }
        
                template<class desttype>
        void connect(desttype* pclass, void (desttype::*pmemfun)(arg1_type))
                {
                        lock_block<mt_policy> lock(this);
                        _connection1<desttype, arg1_type, mt_policy>* conn = 
            new _connection1<desttype, arg1_type, mt_policy>(pclass, pmemfun);
                        this->m_connected_slots.push_back(conn);
                        pclass->signal_connect(this);
                }
        
                void emit(arg1_type a1)
                {
                        lock_block<mt_policy> lock(this);
                        const_iterator itNext, it = this->m_connected_slots.begin();
                        const_iterator itEnd = this->m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                itNext = it;
                                ++itNext;
                
                                (*it)->emit(a1);
                
                                it = itNext;
                        }
                }
        
                void operator()(arg1_type a1)
                {
                        lock_block<mt_policy> lock(this);
                        const_iterator itNext, it = this->m_connected_slots.begin();
                        const_iterator itEnd = this->m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                itNext = it;
                                ++itNext;
                
                                (*it)->emit(a1);
                
                                it = itNext;
                        }
                }
        };
    
        template<class arg1_type, typename arg2_type, typename mt_policy = SIGSLOT_DEFAULT_MT_POLICY>
        class signal2 : public _signal_base2<arg1_type, arg2_type, mt_policy>
        {
        public:
        typedef typename _signal_base2<arg1_type, arg2_type, mt_policy>::connections_list::const_iterator const_iterator;
                signal2()
                {
                        ;
                }
        
                signal2(const signal2<arg1_type, arg2_type, mt_policy>& s)
        : _signal_base2<arg1_type, arg2_type, mt_policy>(s)
                {
                        ;
                }
        
                template<class desttype>
        void connect(desttype* pclass, void (desttype::*pmemfun)(arg1_type,
                                                                 arg2_type))
                {
                        lock_block<mt_policy> lock(this);
                        _connection2<desttype, arg1_type, arg2_type, mt_policy>* conn = new
            _connection2<desttype, arg1_type, arg2_type, mt_policy>(pclass, pmemfun);
                        this->m_connected_slots.push_back(conn);
                        pclass->signal_connect(this);
                }
        
                void emit(arg1_type a1, arg2_type a2)
                {
                        lock_block<mt_policy> lock(this);
                        const_iterator itNext, it = this->m_connected_slots.begin();
                        const_iterator itEnd = this->m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                itNext = it;
                                ++itNext;
                
                                (*it)->emit(a1, a2);
                
                                it = itNext;
                        }
                }
        
                void operator()(arg1_type a1, arg2_type a2)
                {
                        lock_block<mt_policy> lock(this);
                        const_iterator itNext, it = this->m_connected_slots.begin();
                        const_iterator itEnd = this->m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                itNext = it;
                                ++itNext;
                
                                (*it)->emit(a1, a2);
                
                                it = itNext;
                        }
                }
        };
    
        template<class arg1_type, typename arg2_type, typename arg3_type, typename mt_policy = SIGSLOT_DEFAULT_MT_POLICY>
        class signal3 : public _signal_base3<arg1_type, arg2_type, arg3_type, mt_policy>
        {
        public:
        typedef typename _signal_base3<arg1_type, arg2_type, arg3_type, mt_policy>::connections_list::const_iterator const_iterator;
                signal3()
                {
                        ;
                }
        
                signal3(const signal3<arg1_type, arg2_type, arg3_type, mt_policy>& s)
        : _signal_base3<arg1_type, arg2_type, arg3_type, mt_policy>(s)
                {
                        ;
                }
        
                template<class desttype>
        void connect(desttype* pclass, void (desttype::*pmemfun)(arg1_type,
                                                                 arg2_type, arg3_type))
                {
                        lock_block<mt_policy> lock(this);
                        _connection3<desttype, arg1_type, arg2_type, arg3_type, mt_policy>* conn = 
            new _connection3<desttype, arg1_type, arg2_type, arg3_type, mt_policy>(pclass,
                                                                                   pmemfun);
                        this->m_connected_slots.push_back(conn);
                        pclass->signal_connect(this);
                }
        
                void emit(arg1_type a1, arg2_type a2, arg3_type a3)
                {
                        lock_block<mt_policy> lock(this);
                        const_iterator itNext, it = this->m_connected_slots.begin();
                        const_iterator itEnd = this->m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                itNext = it;
                                ++itNext;
                
                                (*it)->emit(a1, a2, a3);
                
                                it = itNext;
                        }
                }
        
                void operator()(arg1_type a1, arg2_type a2, arg3_type a3)
                {
                        lock_block<mt_policy> lock(this);
                        const_iterator itNext, it = this->m_connected_slots.begin();
                        const_iterator itEnd = this->m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                itNext = it;
                                ++itNext;
                
                                (*it)->emit(a1, a2, a3);
                
                                it = itNext;
                        }
                }
        };
    
        template<class arg1_type, class arg2_type, class arg3_type, class arg4_type, class mt_policy = SIGSLOT_DEFAULT_MT_POLICY>
        class signal4 : public _signal_base4<arg1_type, arg2_type, arg3_type,
    arg4_type, mt_policy>
        {
        public:
        typedef typename _signal_base4<arg1_type, arg2_type, arg3_type, arg4_type, mt_policy>::connections_list::const_iterator const_iterator;
                signal4()
                {
                        ;
                }
        
                signal4(const signal4<arg1_type, arg2_type, arg3_type, arg4_type, mt_policy>& s)
        : _signal_base4<arg1_type, arg2_type, arg3_type, arg4_type, mt_policy>(s)
                {
                        ;
                }
        
                template<class desttype>
        void connect(desttype* pclass, void (desttype::*pmemfun)(arg1_type,
                                                                 arg2_type, arg3_type, arg4_type))
                {
                        lock_block<mt_policy> lock(this);
                        _connection4<desttype, arg1_type, arg2_type, arg3_type, arg4_type, mt_policy>*
            conn = new _connection4<desttype, arg1_type, arg2_type, arg3_type,
            arg4_type, mt_policy>(pclass, pmemfun);
                        this->m_connected_slots.push_back(conn);
                        pclass->signal_connect(this);
                }
        
                void emit(arg1_type a1, arg2_type a2, arg3_type a3, arg4_type a4)
                {
                        lock_block<mt_policy> lock(this);
                        const_iterator itNext, it = this->m_connected_slots.begin();
                        const_iterator itEnd = this->m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                itNext = it;
                                ++itNext;
                
                                (*it)->emit(a1, a2, a3, a4);
                
                                it = itNext;
                        }
                }
        
                void operator()(arg1_type a1, arg2_type a2, arg3_type a3, arg4_type a4)
                {
                        lock_block<mt_policy> lock(this);
                        const_iterator itNext, it = this->m_connected_slots.begin();
                        const_iterator itEnd = this->m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                itNext = it;
                                ++itNext;
                
                                (*it)->emit(a1, a2, a3, a4);
                
                                it = itNext;
                        }
                }
        };
    
        template<class arg1_type, class arg2_type, class arg3_type, class arg4_type,
        class arg5_type, class mt_policy = SIGSLOT_DEFAULT_MT_POLICY>
        class signal5 : public _signal_base5<arg1_type, arg2_type, arg3_type,
    arg4_type, arg5_type, mt_policy>
        {
        public:
        typedef typename _signal_base5<arg1_type, arg2_type, arg3_type, arg4_type, arg5_type, mt_policy>::connections_list::const_iterator const_iterator;
                signal5()
                {
                        ;
                }
        
                signal5(const signal5<arg1_type, arg2_type, arg3_type, arg4_type,
                arg5_type, mt_policy>& s)
        : _signal_base5<arg1_type, arg2_type, arg3_type, arg4_type,
        arg5_type, mt_policy>(s)
                {
                        ;
                }
        
                template<class desttype>
        void connect(desttype* pclass, void (desttype::*pmemfun)(arg1_type,
                                                                 arg2_type, arg3_type, arg4_type, arg5_type))
                {
                        lock_block<mt_policy> lock(this);
                        _connection5<desttype, arg1_type, arg2_type, arg3_type, arg4_type,
            arg5_type, mt_policy>* conn = new _connection5<desttype, arg1_type, arg2_type,
            arg3_type, arg4_type, arg5_type, mt_policy>(pclass, pmemfun);
                        this->m_connected_slots.push_back(conn);
                        pclass->signal_connect(this);
                }
        
                void emit(arg1_type a1, arg2_type a2, arg3_type a3, arg4_type a4,
                  arg5_type a5)
                {
                        lock_block<mt_policy> lock(this);
                        const_iterator itNext, it = this->m_connected_slots.begin();
                        const_iterator itEnd = this->m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                itNext = it;
                                ++itNext;
                
                                (*it)->emit(a1, a2, a3, a4, a5);
                
                                it = itNext;
                        }
                }
        
                void operator()(arg1_type a1, arg2_type a2, arg3_type a3, arg4_type a4,
                        arg5_type a5)
                {
                        lock_block<mt_policy> lock(this);
                        const_iterator itNext, it = this->m_connected_slots.begin();
                        const_iterator itEnd = this->m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                itNext = it;
                                ++itNext;
                
                                (*it)->emit(a1, a2, a3, a4, a5);
                
                                it = itNext;
                        }
                }
        };
    
    
        template<class arg1_type, class arg2_type, class arg3_type, class arg4_type,
        class arg5_type, class arg6_type, class mt_policy = SIGSLOT_DEFAULT_MT_POLICY>
        class signal6 : public _signal_base6<arg1_type, arg2_type, arg3_type,
    arg4_type, arg5_type, arg6_type, mt_policy>
        {
        public:
        typedef typename _signal_base6<arg1_type, arg2_type, arg3_type,
                arg4_type, arg5_type, arg6_type, mt_policy>::connections_list::const_iterator const_iterator;
                signal6()
                {
                        ;
                }
        
                signal6(const signal6<arg1_type, arg2_type, arg3_type, arg4_type,
                arg5_type, arg6_type, mt_policy>& s)
        : _signal_base6<arg1_type, arg2_type, arg3_type, arg4_type,
        arg5_type, arg6_type, mt_policy>(s)
                {
                        ;
                }
        
                template<class desttype>
        void connect(desttype* pclass, void (desttype::*pmemfun)(arg1_type,
                                                                 arg2_type, arg3_type, arg4_type, arg5_type, arg6_type))
                {
                        lock_block<mt_policy> lock(this);
                        _connection6<desttype, arg1_type, arg2_type, arg3_type, arg4_type,
            arg5_type, arg6_type, mt_policy>* conn = 
            new _connection6<desttype, arg1_type, arg2_type, arg3_type,
            arg4_type, arg5_type, arg6_type, mt_policy>(pclass, pmemfun);
                        this->m_connected_slots.push_back(conn);
                        pclass->signal_connect(this);
                }
        
                void emit(arg1_type a1, arg2_type a2, arg3_type a3, arg4_type a4,
                  arg5_type a5, arg6_type a6)
                {
                        lock_block<mt_policy> lock(this);
                        const_iterator itNext, it = this->m_connected_slots.begin();
                        const_iterator itEnd = this->m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                itNext = it;
                                ++itNext;
                
                                (*it)->emit(a1, a2, a3, a4, a5, a6);
                
                                it = itNext;
                        }
                }
        
                void operator()(arg1_type a1, arg2_type a2, arg3_type a3, arg4_type a4,
                        arg5_type a5, arg6_type a6)
                {
                        lock_block<mt_policy> lock(this);
                        const_iterator itNext, it = this->m_connected_slots.begin();
                        const_iterator itEnd = this->m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                itNext = it;
                                ++itNext;
                
                                (*it)->emit(a1, a2, a3, a4, a5, a6);
                
                                it = itNext;
                        }
                }
        };
    
        template<class arg1_type, class arg2_type, class arg3_type, class arg4_type,
        class arg5_type, class arg6_type, class arg7_type, class mt_policy = SIGSLOT_DEFAULT_MT_POLICY>
        class signal7 : public _signal_base7<arg1_type, arg2_type, arg3_type,
    arg4_type, arg5_type, arg6_type, arg7_type, mt_policy>
        {
        public:
        typedef typename _signal_base7<arg1_type, arg2_type, arg3_type,
                arg4_type, arg5_type, arg6_type, arg7_type, mt_policy>::connections_list::const_iterator const_iterator;
                signal7()
                {
                        ;
                }
        
                signal7(const signal7<arg1_type, arg2_type, arg3_type, arg4_type,
                arg5_type, arg6_type, arg7_type, mt_policy>& s)
        : _signal_base7<arg1_type, arg2_type, arg3_type, arg4_type,
        arg5_type, arg6_type, arg7_type, mt_policy>(s)
                {
                        ;
                }
        
                template<class desttype>
        void connect(desttype* pclass, void (desttype::*pmemfun)(arg1_type,
                                                                 arg2_type, arg3_type, arg4_type, arg5_type, arg6_type, 
                                                                 arg7_type))
                {
                        lock_block<mt_policy> lock(this);
                        _connection7<desttype, arg1_type, arg2_type, arg3_type, arg4_type,
            arg5_type, arg6_type, arg7_type, mt_policy>* conn = 
            new _connection7<desttype, arg1_type, arg2_type, arg3_type,
            arg4_type, arg5_type, arg6_type, arg7_type, mt_policy>(pclass, pmemfun);
                        this->m_connected_slots.push_back(conn);
                        pclass->signal_connect(this);
                }
        
                void emit(arg1_type a1, arg2_type a2, arg3_type a3, arg4_type a4,
                  arg5_type a5, arg6_type a6, arg7_type a7)
                {
                        lock_block<mt_policy> lock(this);
                        const_iterator itNext, it = this->m_connected_slots.begin();
                        const_iterator itEnd = this->m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                itNext = it;
                                ++itNext;
                
                                (*it)->emit(a1, a2, a3, a4, a5, a6, a7);
                
                                it = itNext;
                        }
                }
        
                void operator()(arg1_type a1, arg2_type a2, arg3_type a3, arg4_type a4,
                        arg5_type a5, arg6_type a6, arg7_type a7)
                {
                        lock_block<mt_policy> lock(this);
                        const_iterator itNext, it = this->m_connected_slots.begin();
                        const_iterator itEnd = this->m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                itNext = it;
                                ++itNext;
                
                                (*it)->emit(a1, a2, a3, a4, a5, a6, a7);
                
                                it = itNext;
                        }
                }
        };
    
        template<class arg1_type, class arg2_type, class arg3_type, class arg4_type,
        class arg5_type, class arg6_type, class arg7_type, class arg8_type, class mt_policy = SIGSLOT_DEFAULT_MT_POLICY>
        class signal8 : public _signal_base8<arg1_type, arg2_type, arg3_type,
    arg4_type, arg5_type, arg6_type, arg7_type, arg8_type, mt_policy>
        {
        public:
        typedef typename _signal_base8<arg1_type, arg2_type, arg3_type,
                arg4_type, arg5_type, arg6_type, arg7_type, arg8_type, mt_policy>::connections_list::const_iterator const_iterator;
                signal8()
                {
                        ;
                }
        
                signal8(const signal8<arg1_type, arg2_type, arg3_type, arg4_type,
                arg5_type, arg6_type, arg7_type, arg8_type, mt_policy>& s)
        : _signal_base8<arg1_type, arg2_type, arg3_type, arg4_type,
        arg5_type, arg6_type, arg7_type, arg8_type, mt_policy>(s)
                {
                        ;
                }
        
                template<class desttype>
        void connect(desttype* pclass, void (desttype::*pmemfun)(arg1_type,
                                                                 arg2_type, arg3_type, arg4_type, arg5_type, arg6_type, 
                                                                 arg7_type, arg8_type))
                {
                        lock_block<mt_policy> lock(this);
                        _connection8<desttype, arg1_type, arg2_type, arg3_type, arg4_type,
            arg5_type, arg6_type, arg7_type, arg8_type, mt_policy>* conn = 
            new _connection8<desttype, arg1_type, arg2_type, arg3_type,
            arg4_type, arg5_type, arg6_type, arg7_type, 
            arg8_type, mt_policy>(pclass, pmemfun);
                        this->m_connected_slots.push_back(conn);
                        pclass->signal_connect(this);
                }
        
                void emit(arg1_type a1, arg2_type a2, arg3_type a3, arg4_type a4,
                  arg5_type a5, arg6_type a6, arg7_type a7, arg8_type a8)
                {
                        lock_block<mt_policy> lock(this);
                        const_iterator itNext, it = this->m_connected_slots.begin();
                        const_iterator itEnd = this->m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                itNext = it;
                                ++itNext;
                
                                (*it)->emit(a1, a2, a3, a4, a5, a6, a7, a8);
                
                                it = itNext;
                        }
                }
        
                void operator()(arg1_type a1, arg2_type a2, arg3_type a3, arg4_type a4,
                        arg5_type a5, arg6_type a6, arg7_type a7, arg8_type a8)
                {
                        lock_block<mt_policy> lock(this);
                        const_iterator itNext, it = this->m_connected_slots.begin();
                        const_iterator itEnd = this->m_connected_slots.end();
            
                        while(it != itEnd)
                        {
                                itNext = it;
                                ++itNext;
                
                                (*it)->emit(a1, a2, a3, a4, a5, a6, a7, a8);
                
                                it = itNext;
                        }
                }
        };
    
}; // namespace sigslot

#endif // SIGSLOT_H__