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LibN2L-4 Library Code ReferenceClassesCompounds Files Members Method Index Full Reference cTSUniStreamImp.hGo to the documentation of this file.00001 /************************************************************************ 00002 Nova-2 Library (libN2L, or simply n2l) Game development C++ Library 00003 Copyright (C) 2002 Aaron Cameron 00004 00005 This library is free software; you can redistribute it and/or 00006 modify it under the terms of the GNU Lesser General Public 00007 License as published by the Free Software Foundation; either 00008 version 2.1 of the License, or (at your option) any later version. 00009 00010 This library is distributed in the hope that it will be useful, 00011 but WITHOUT ANY WARRANTY; without even the implied warranty of 00012 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00013 Lesser General Public License for more details. 00014 00015 You should have received a copy of the GNU Lesser General Public 00016 License along with this library; if not, write to the Free Software 00017 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 00018 00019 A copy of the GNU Lesser General Public License has been provided with 00020 this library in the file 'COPYING'. 00021 00022 Contact information for the author of this library has been provided 00023 with this library in the file 'AUTHOR'. 00024 ************************************************************************/ 00025 #ifndef _n2l4_cUniStreamImp_H 00026 #define _n2l4_cUniStreamImp_H 00027 00028 #include "n2l/n2l.h" 00029 #include "n2l/threads.h" 00030 00031 #include "cStreamFilterInterface.h" 00032 #include "cInsertionStreamInterface.h" 00033 #include "cStreamConverterInterface.h" 00034 00035 #include <vector> 00036 00037 namespace n2l 00038 { 00039 00040 00044 template < class TIValue, 00045 class TOValue, 00046 class TVContainer > 00047 class cUniStreamImp 00048 { 00049 public: 00050 typedef cUniStreamImp<TIValue,TOValue,TVContainer> tThis; 00051 00052 typedef TIValue tInValue; 00053 typedef TOValue tOutValue; 00054 00055 typedef cAutoPtr<cStreamConverterInterface<tInValue,tOutValue> > tConverter; 00056 00057 typedef cAutoPtr<cInsertionStreamInterface<tInValue> > tPreConvJoiner; 00058 typedef cAutoPtr<cInsertionStreamInterface<tInValue> > tPostConvJoiner; 00059 00060 typedef TVContainer tValueContainer; 00061 typedef typename tValueContainer::size_type tSize; 00062 00063 typedef cAutoPtr<cStreamFilterInterface<tInValue> > tPreFilter; 00064 typedef cAutoPtr<cStreamFilterInterface<tOutValue> > tPostFilter; 00065 00066 typedef std::vector<tPreFilter> tPreFilterContainer; 00067 typedef std::vector<tPostFilter> tPostFilterContainer; 00068 00069 typedef typename tPreFilterContainer::iterator tPreFilterIterator; 00070 typedef typename tPostFilterContainer::iterator tPostFilterIterator; 00071 00072 typedef std::vector<tPreConvJoiner> tPreConvJoinContainer; 00073 typedef std::vector<tPostConvJoiner> tPostConvJoinContainer; 00074 00075 typedef typename tPreConvJoinContainer::iterator tPreConvJoinIterator; 00076 typedef typename tPostConvJoinContainer::iterator tPostConvJoinIterator; 00077 00078 /* ************************************************************ */ 00079 cUniStreamImp( const tConverter & i_converter ) : 00080 m_converter(i_converter), 00081 m_connected(true) 00082 { 00083 } 00084 00085 00086 /* ************************************************************ */ 00087 void push( const tInValue & i_value ) 00088 { 00089 const cMutexLocker MutexLock(&m_mutex); 00090 if (!isConnected()) return; 00091 00092 const tPreFilterIterator EndPreFilterIt = m_preFilters.end(); 00093 for ( tPreFilterIterator filterIt = m_preFilters.begin(); 00094 EndPreFilterIt!=filterIt; ++filterIt ) 00095 if (!(*filterIt)->allow(i_value)) return; 00096 00097 const tPreConvJoinIterator EndPreStreamIt = m_preConvJoiners.end(); 00098 for ( tPreConvJoinIterator streamIt = m_preConvJoiners.begin(); 00099 EndPreStreamIt!=streamIt; ++streamIt ) 00100 (*streamIt)->push(i_value); 00101 00102 tOutValue temp; 00103 m_converter->convert(temp,i_value); 00104 00105 const tPostFilterIterator EndPostFilterIt = m_postFilters.end(); 00106 for ( tPostFilterIterator filterIt = m_postFilters.begin(); 00107 EndPostFilterIt!=filterIt; ++filterIt ) 00108 if (!(*filterIt)->allow(temp)) return; 00109 00110 const tPostConvJoinIterator EndPostStreamIt = m_postConvJoiners.end(); 00111 for ( tPostConvJoinIterator streamIt = m_postConvJoiners.begin(); 00112 EndPostStreamIt!=streamIt; ++streamIt ) 00113 (*streamIt)->push(temp); 00114 00115 m_values.push(temp); 00116 } 00117 00118 00119 /* ************************************************************ */ 00120 const bool pop( tOutValue & o_value ) 00121 { 00122 const cMutexLocker MutexLock(&m_mutex); 00123 if (m_values.empty()) return false; 00124 o_value = m_values.front(); 00125 m_values.pop(); 00126 return true; 00127 } 00128 00129 00130 /* ************************************************************ */ 00131 const tSize size() const 00132 { 00133 const cMutexLocker MutexLock(&m_mutex); 00134 return m_values.size(); 00135 } 00136 00137 00138 /* ************************************************************ */ 00139 const bool empty() const 00140 { 00141 const cMutexLocker MutexLock(&m_mutex); 00142 return m_values.empty(); 00143 } 00144 00145 00146 /* ************************************************************ */ 00147 void attachInsertionFilter( tPreFilter io_filter ) 00148 { 00149 const cMutexLocker MutexLock(&m_mutex); 00150 m_preFilters.push_back( io_filter ); 00151 } 00152 00153 00154 /* ************************************************************ */ 00155 void attachExtractionFilter( tPostFilter io_filter ) 00156 { 00157 const cMutexLocker MutexLock(&m_mutex); 00158 m_postFilters.push_back( io_filter ); 00159 } 00160 00161 00162 /* ************************************************************ */ 00163 void attachPreConversionStream( const tPreConvJoiner io_stream ) 00164 { 00165 const cMutexLocker MutexLock(&m_mutex); 00166 m_preConvJoiners.push_back(io_stream); 00167 } 00168 00169 /* ************************************************************ */ 00170 void attachPostConversionStream( const tPostConvJoiner io_stream ) 00171 { 00172 const cMutexLocker MutexLock(&m_mutex); 00173 m_postConvJoiners.push_back(io_stream); 00174 } 00175 00176 /* ************************************************************ */ 00177 const bool isConnected() const 00178 { 00179 const cMutexLocker MutexLock(&m_mutex); 00180 return m_connected; 00181 } 00182 00183 /* ************************************************************ */ 00184 void disconnect() 00185 { 00186 const cMutexLocker MutexLock(&m_mutex); 00187 m_connected = false; 00188 } 00189 00190 00191 private: 00192 tValueContainer m_values; 00193 tPreFilterContainer m_preFilters; 00194 tPostFilterContainer m_postFilters; 00195 tPreConvJoinContainer m_preConvJoiners; 00196 tPostConvJoinContainer m_postConvJoiners; 00197 00198 tConverter m_converter; 00199 00200 bool m_connected; 00201 00202 cMutex m_mutex; 00203 00204 }; // class 00205 00206 } // namespace n2l 00207 00208 #endif |