git.h

Go to the documentation of this file.
00001 
00004 /*
00005  * Copyright © 2000, 2001 Sofus Mortensen
00006  *
00007  * This material is provided "as is", with absolutely no warranty 
00008  * expressed or implied. Any use is at your own risk. Permission to 
00009  * use or copy this software for any purpose is hereby granted without 
00010  * fee, provided the above notices are retained on all copies. 
00011  * Permission to modify the code and to distribute modified code is 
00012  * granted, provided the above notices are retained, and a notice that 
00013  * the code was modified is included with the above copyright notice. 
00014  *
00015  * This header is part of comet.
00016  * http://www.lambdasoft.dk/comet
00017  */
00018 
00019 #ifndef COMET_GIT_H
00020 #define COMET_GIT_H
00021 
00022 #include <comet/config.h>
00023 
00024 #include <comet/ptr.h>
00025 
00026 namespace comet {
00030 
00031         class GIT;
00032 
00034         template<typename Itf> class GIT_cookie
00035         {
00036                 friend class GIT;
00037         public:
00038                 GIT_cookie(const GIT_cookie& c) : cookie_(c.cookie_) {}
00039                 explicit GIT_cookie(DWORD c) : cookie_(c) {}
00040 
00041                 DWORD get_cookie() { return cookie_; }
00042         private:        
00043                 DWORD cookie_;
00044         };
00045 
00047         class GIT {
00048         public:
00049                 GIT() : git_(CLSID_StdGlobalInterfaceTable)
00050                 {}
00051 
00056                 template<typename Itf>
00057                 GIT_cookie<Itf> register_interface(com_ptr<Itf>& ptr)
00058                 {
00059                         DWORD cookie;
00060                         git_->RegisterInterfaceInGlobal(ptr.get(), uuidof<Itf>(), &cookie) | raise_exception;
00061                         return GIT_cookie<Itf>(cookie);
00062                 }
00063 
00068                 template<typename Itf>
00069                 com_ptr<Itf> get_interface(GIT_cookie<Itf>& c)
00070                 {
00071                         Itf* itf;
00072                         git_->GetInterfaceFromGlobal(c.get_cookie(), uuidof<Itf>(), reinterpret_cast<void**>(&itf)) | raise_exception;
00073                         return auto_attach(itf);
00074                 }
00075 
00079                 template<typename Itf>
00080                 void revoke_interface(GIT_cookie<Itf>& c)
00081                 {
00082                         git_->RevokeInterfaceFromGlobal(c.get_cookie()) | raise_exception;
00083                 }
00084 
00085         private:
00086                 com_ptr<::IGlobalInterfaceTable> git_;
00087         };
00089 
00090 } // namespace comet
00091 
00092 #endif