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Annotation of truecrypt/platform/event.h, revision 1.1.1.8

1.1       root        1: /*
1.1.1.7   root        2:  Copyright (c) 2008-2009 TrueCrypt Developers Association. All rights reserved.
1.1       root        3: 
1.1.1.8 ! root        4:  Governed by the TrueCrypt License 3.0 the full text of which is contained in
1.1.1.7   root        5:  the file License.txt included in TrueCrypt binary and source code distribution
                      6:  packages.
1.1       root        7: */
                      8: 
                      9: #ifndef TC_HEADER_Platform_Event
                     10: #define TC_HEADER_Platform_Event
                     11: 
                     12: #include "PlatformBase.h"
                     13: #include "ForEach.h"
                     14: #include "Mutex.h"
                     15: #include "SharedPtr.h"
                     16: 
                     17: namespace TrueCrypt
                     18: {
                     19:        struct EventArgs
                     20:        {
                     21:                virtual ~EventArgs () { }
                     22:        };
                     23: 
                     24:        class EventConnectorBase
                     25:        {
                     26:        public:
                     27:                virtual ~EventConnectorBase () { }
                     28:                virtual void operator() (EventArgs &args) = 0;
                     29: 
                     30:                virtual EventConnectorBase *CloneNew () const = 0;
                     31:                virtual void *GetHandler () const = 0;
                     32:        };
                     33: 
                     34:        typedef list < shared_ptr <EventConnectorBase> > EventHandlerList;
                     35: 
                     36:        template <class T>
                     37:        class EventConnector : public EventConnectorBase
                     38:        {
                     39:        public:
                     40:                typedef void (T::*EventHandlerFunction) (EventArgs &);
                     41: 
                     42:                EventConnector (T *handler, EventHandlerFunction function)
                     43:                        : Handler (handler), Function (function) { }
                     44: 
                     45:                virtual void operator() (EventArgs &args) { (Handler->*Function) (args); }
                     46: 
                     47:                virtual EventConnectorBase *CloneNew () const { return new EventConnector <T> (*this); }
                     48:                virtual void *GetHandler () const { return Handler; }
                     49: 
                     50:        protected:
                     51:                T *Handler;
                     52:                EventHandlerFunction Function;
                     53:        };
                     54: 
                     55:        class Event
                     56:        {
                     57:        public:
                     58:                Event () { }
                     59:                virtual ~Event () { }
                     60: 
                     61:                void Connect (const EventConnectorBase &connector);
                     62:                void Disconnect (void *handler);
                     63:                void Raise ();
                     64:                void Raise (EventArgs &args);
                     65: 
                     66:        protected:
                     67:                EventHandlerList ConnectedHandlers;
                     68:                Mutex HandlersMutex;
                     69: 
                     70:        private:
                     71:                Event (const Event &);
                     72:                Event &operator= (const Event &);
                     73:        };
                     74: 
1.1.1.4   root       75:        struct ExceptionEventArgs : public EventArgs
1.1       root       76:        {
                     77:                ExceptionEventArgs (exception &ex) : mException (ex) { }
                     78:                exception &mException;
                     79: 
                     80:        private:
                     81:                ExceptionEventArgs (const ExceptionEventArgs &);
                     82:                ExceptionEventArgs &operator= (const ExceptionEventArgs &);
                     83:        };
                     84: }
                     85: 
                     86: #endif // TC_HEADER_Platform_Event

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