00001 // $Id: singleton.cti 1742 2010-11-04 14:51:56Z g0dil $ 00002 // 00003 // Copyright (C) 2007 00004 // Fraunhofer (FOKUS) 00005 // Competence Center NETwork research (NET), St. Augustin, GERMANY 00006 // Stefan Bund <g0dil@berlios.de> 00007 // 00008 // This program is free software; you can redistribute it and/or modify 00009 // it under the terms of the GNU General Public License as published by 00010 // the Free Software Foundation; either version 2 of the License, or 00011 // (at your option) any later version. 00012 // 00013 // This program is distributed in the hope that it will be useful, 00014 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00015 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00016 // GNU General Public License for more details. 00017 // 00018 // You should have received a copy of the GNU General Public License 00019 // along with this program; if not, write to the 00020 // Free Software Foundation, Inc., 00021 // 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 00022 00026 //#include "singleton.ih" 00027 00028 // Custom includes 00029 00030 #define prefix_ inline 00031 //-///////////////////////////////////////////////////////////////////////////////////////////////// 00032 00033 template <class Self> 00034 prefix_ senf::singleton<Self>::singleton() 00035 { 00036 alive_ = true; 00037 } 00038 00039 template <class Self> 00040 prefix_ senf::singleton<Self>::~singleton() 00041 { 00042 alive_ = false; 00043 } 00044 00045 template <class Self> 00046 bool senf::singleton<Self>::alive_ (false); 00047 00048 template <class Self> 00049 prefix_ Self & senf::singleton<Self>::instance() 00050 { 00051 static Self instance_; 00052 // Force instantiation of force_creation (at static object creation time) 00053 creator_.nop(); 00054 return instance_; 00055 } 00056 00057 template <class Self> 00058 prefix_ bool senf::singleton<Self>::alive() 00059 { 00060 return alive_; 00061 } 00062 00063 template <class Self> 00064 prefix_ senf::singleton<Self>::force_creation::force_creation() 00065 { 00066 // Force execution of instance() thereby creating instance 00067 senf::singleton<Self>::instance(); 00068 } 00069 00070 template <class Self> 00071 prefix_ void senf::singleton<Self>::force_creation::nop() 00072 const 00073 { 00074 // No operation ... 00075 } 00076 00077 template <class Self> 00078 typename senf::singleton<Self>::force_creation senf::singleton<Self>::creator_; 00079 00080 //-///////////////////////////////////////////////////////////////////////////////////////////////// 00081 #undef prefix_ 00082 00083 00084 // Local Variables: 00085 // mode: c++ 00086 // fill-column: 100 00087 // c-file-style: "senf" 00088 // indent-tabs-mode: nil 00089 // ispell-local-dictionary: "american" 00090 // compile-command: "scons -u test" 00091 // comment-column: 40 00092 // End: