--- /dev/null
+#ifndef __ACTIONS_H__
+#define __ACTIONS_H__
+
+// Usage:
+//
+// ACTIONS_LIST actionsList;
+// CLASS myClass;
+// DATA1 myData1;
+// DATA2 myData2;
+//
+// actionsList.Enqueue(myClass, &CLASS::myMethod1, myData1);
+// actionsList.Enqueue(myClass, &CLASS::myMethod2, myData2);
+//
+// actionsList.InvokeAll();
+
+#include <pthread.h>
+#include <list>
+#include <functional>
+
+// Generalized actor type - a method of some class with one argument
+template <class ACTIVE_CLASS, typename DATA_TYPE>
+struct ACTOR
+{
+typedef void (ACTIVE_CLASS::*TYPE)(DATA_TYPE);
+};
+
+// Abstract base action class for polymorphic action invocation
+class BASE_ACTION
+{
+public:
+ virtual ~BASE_ACTION() {}
+ virtual void Invoke() = 0;
+};
+
+// Concrete generalized action type - an actor with it's data and owner
+template <class ACTIVE_CLASS, typename DATA_TYPE>
+class ACTION : public BASE_ACTION,
+ public std::unary_function<ACTIVE_CLASS &, void>
+{
+public:
+ ACTION(ACTIVE_CLASS & ac,
+ typename ACTOR<ACTIVE_CLASS, DATA_TYPE>::TYPE a,
+ DATA_TYPE d)
+ : activeClass(ac), actor(a), data(d) {}
+ void Invoke();
+private:
+ ACTION(const ACTION<ACTIVE_CLASS, DATA_TYPE> & rvalue);
+ ACTION<ACTIVE_CLASS, DATA_TYPE> & operator=(const ACTION<ACTIVE_CLASS, DATA_TYPE> & rvalue);
+
+ ACTIVE_CLASS & activeClass;
+ typename ACTOR<ACTIVE_CLASS, DATA_TYPE>::TYPE actor;
+ DATA_TYPE data;
+};
+
+// A list of an actions
+// All methods are thread-safe
+class ACTIONS_LIST : private std::list<BASE_ACTION *>
+{
+public:
+ // Just a typedef for parent class
+ typedef std::list<BASE_ACTION *> parent;
+
+ // Initialize mutex
+ ACTIONS_LIST();
+ // Delete actions and destroy mutex
+ virtual ~ACTIONS_LIST();
+
+ parent::iterator begin();
+ parent::iterator end();
+ parent::const_iterator begin() const;
+ parent::const_iterator end() const;
+
+ bool empty() const;
+ size_t size() const;
+ void swap(ACTIONS_LIST & list);
+
+ // Add an action to list
+ template <class ACTIVE_CLASS, typename DATA_TYPE>
+ void Enqueue(ACTIVE_CLASS & ac,
+ typename ACTOR<ACTIVE_CLASS, DATA_TYPE>::TYPE a,
+ DATA_TYPE d);
+ // Invoke all actions in the list
+ void InvokeAll();
+private:
+ mutable pthread_mutex_t mutex;
+};
+
+#include "actions.inl.h"
+
+#endif