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| #include <boost/bind.hpp>
#include <functional>
#include <unordered_map>
#include <iostream>
#include <string>
#include <vector>
#include <queue>
#include <boost/thread/thread.hpp>
#include <windows.h>
using namespace std;
template<typename T, typename R, typename ...Args>
class member_function
{
private :
T* obj;
R(T::*function)(Args...);
public :
member_function(T* ob, R(T::*func)(Args...)): obj(ob), function(func){}
R operator()(Args...arg)
{
return (obj->*function)(arg...);
}
};
template<typename T, typename R, typename ...Args>
member_function<T,R,Args...> make_member(T*obj, R(T::*func)(Args...))
{
return member_function<T,R,Args...>(obj, func);
}
template<typename T, typename R, typename ...Args>
member_function<T,R,Args...> make_member(T& obj, R(T::*func)(Args...))
{
return member_function<T,R,Args...>(&obj, func);
}
template<typename ...Args>
class Evenement
{
private :
std::tuple<Args...> my_args;
public :
Evenement(Args...args) : my_args(args...){}
std::tuple<Args...>get_args(){return my_args;}
};
class Callback
{
private :
std::function<void(void*)> function;
bool is_function;
public :
Callback(const Callback& c)
{
this->function=c.function;
is_function=c.is_function;
}
Callback(std::function<void(void*)> fc)
{
function=fc;
is_function=true;
}
Callback(bool t)
{
is_function=t;
}
void operator()(void*even)
{
function(even);
}
bool is_func()
{
return is_function;
}
};
template<typename T>
class ma_file
{
private :
std::queue<T> queue;
boost::mutex m;
boost::mutex w;
bool is_locked;
public :
ma_file(){is_locked=true;w.lock();}
void add_element(const T& el)
{
boost::mutex::scoped_lock lock(m);
queue.push(el);
if(is_locked)
{
w.unlock();
is_locked=false;
}
}
T delete_element()
{
boost::mutex::scoped_lock lock(m);
T tmp=queue.front();
queue.pop();
if(queue.empty())
{
w.lock();
is_locked=true;
}
return tmp;
}
operator bool()
{
boost::mutex::scoped_lock lock(m);
return !queue.empty();
}
void wait()
{
w.lock();
w.unlock();
}
};
template<typename R,unsigned int N>
struct get_args_impl_2
{
template<typename Fc, typename ...Args, typename ...ArgsFE>
static R apply(Fc function, std::tuple<Args...> E,ArgsFE...finis )
{
return get_args_impl_2<R,N-1>::apply(function, E, std::get<N-1>(E), finis...);
}
};
template<typename R>
struct get_args_impl_2<R,0>
{
template<typename Fc, typename ...Args, typename ...ArgsFE>
static R apply(Fc function, std::tuple<Args...> E,ArgsFE...finis )
{
function(finis...);
}
};
template<typename R,unsigned int N>
struct get_args_impl
{
template<typename Fc, typename ...Args, typename ...ArgsF, typename ...ArgsE>
static R apply(Fc function, std::tuple<Args...> t, std::tuple<ArgsE...> E, ArgsF...argsfait)
{
return get_args_impl<R,N-1>::apply(function, t, E, std::get<N-1>(t), argsfait...);
}
};
template<typename R>
struct get_args_impl<R,0>
{
template<typename Fc, typename ...Args, typename ...ArgsF, typename ...ArgsE>
static R apply(Fc function, std::tuple<Args...> t, std::tuple<ArgsE...> E, ArgsF...argsfait)
{
return get_args_impl_2<R,sizeof...(ArgsE)>::apply(boost::bind(function, argsfait...), E);
}
};
template<typename R,typename Fc, typename ...Args, typename ...ArgsE>
R my_bind(const Fc function,std::tuple<Args&...>& t, std::tuple<ArgsE...>& te)
{
return get_args_impl<R,sizeof...(Args)>::apply(function, t, te);
}
template<typename ...ArgsE>
struct call_back
{
template<typename R, typename fc, typename ...Args>
static Callback make_callback(R& retour,fc function, Args&... param)
{
std::tuple<Args...> my_tuple(param...);
return Callback
(
[
function, &retour,my_tuple
]
(void*evens)
{
retour=my_bind<R, fc, Args...,ArgsE...> (function, my_tuple, ((Evenement<ArgsE...>*)(evens))->get_args());
}
);
}
};
class Object
{
private :
ma_file<std::pair<Callback, void*>>* file_thread;
std::unordered_map<std::string,std::vector<Callback>>Callbacks;
bool has_key(std::string key)
{
if(Callbacks.find(key)==Callbacks.end())
return false;
return true;
}
void handle_event(std::string key, void*even)
{
std::vector<Callback>&vect=Callbacks[key];
for(unsigned int i=0;i<vect.size();i++)
{
file_thread->add_element(std::pair<Callback, void*>(vect[i],even));
}
}
public :
void emit(std::string key, void* even=NULL)
{
handle_event(key,even);
}
bool add_event(std::string key, Callback fc)
{
if(has_key(key))
{
std::vector<Callback>& vect=Callbacks[key];
vect.push_back(fc);
return false;
}
else
{
std::vector<Callback> vect(1,fc);
Callbacks.insert(pair<std::string,std::vector<Callback>>(key,vect));
return true;
}
}
Object(ma_file<std::pair<Callback, void*>>* mes_lancement) : file_thread(mes_lancement){};
};
class thread_argv
{
private :
ma_file<std::pair<Callback, void*>>*file;
public :
thread_argv(ma_file<std::pair<Callback, void*>>* pfile)
{
file=pfile;
}
void operator()()
{
while(1)
{
std::pair<Callback, void*> tmp(file->delete_element());
if((!(tmp.first.is_func())) && (tmp.second==NULL))
break;
tmp.first(tmp.second);
(*file).wait();
}
}
};
class app//Classe Singleton
{
private :
boost::thread *my_thread;
ma_file<std::pair<Callback,void*>>* file_thread;
public :
app()
{
file_thread=new ma_file<std::pair<Callback,void*>>();
my_thread=new boost::thread(thread_argv(file_thread));
}
~app(){delete my_thread;delete file_thread;}
ma_file<std::pair<Callback,void*>>* get_file(){return file_thread;};
int quit()
{
//app.emit("quit");
file_thread->add_element(std::pair<Callback,void*>(Callback(false),NULL));
my_thread->join();
return 0;
}
int wait()
{
/*SDL_Event Event;
while(1)
{
SDL_WaitEvent(&Event);
switch(Event.type)
{
case SDL_UserEvent :
switch(*(int*)()
case Key_Event :
}
}*/
return 0;
}
};
int test_func(int one, int two)
{
return one+two;
}
/*template<typename R, typename T1, typename T2, typename Fc, typename ...Args>
R my_bind(T1 o, T2 t, Fc func,Args...arg)
{
return std::bind(func, arg...)(o,t);
}*/
int main()
{
app appli;
Object a(appli.get_file());
int b=10, c=40,d=5,e=20;
Evenement<int> ymp(20);
a.add_event("show",call_back<int>::make_callback(b, test_func, c,_1));
a.emit(std::string("show"),(void*)(&ymp));
appli.quit();
std::cout<<"\nValeur après le declenchement de l'evenement : "<<b<<"\nValeur de c = "<<c<<"\n"<<d<<"\n"<<e<<"\n\n";
return 0;
} |
difficulté avec des templates variadiques (c++0x)
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