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doxygen="_cgi:http://www.nevrax.org/cgi-bin/nel-search.cgi" href="http://www.nevrax.org/cgi-bin/nel-search.cgi">Search</a> </center> +<hr><h1>stream.cpp</h1><a href="stream_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001 +00007 <font class="comment">/* Copyright, 2000 Nevrax Ltd.</font> +00008 <font class="comment"> *</font> +00009 <font class="comment"> * This file is part of NEVRAX NEL.</font> +00010 <font class="comment"> * NEVRAX NEL is free software; you can redistribute it and/or modify</font> +00011 <font class="comment"> * it under the terms of the GNU General Public License as published by</font> +00012 <font class="comment"> * the Free Software Foundation; either version 2, or (at your option)</font> +00013 <font class="comment"> * any later version.</font> +00014 <font class="comment"></font> +00015 <font class="comment"> * NEVRAX NEL is distributed in the hope that it will be useful, but</font> +00016 <font class="comment"> * WITHOUT ANY WARRANTY; without even the implied warranty of</font> +00017 <font class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</font> +00018 <font class="comment"> * General Public License for more details.</font> +00019 <font class="comment"></font> +00020 <font class="comment"> * You should have received a copy of the GNU General Public License</font> +00021 <font class="comment"> * along with NEVRAX NEL; see the file COPYING. If not, write to the</font> +00022 <font class="comment"> * Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,</font> +00023 <font class="comment"> * MA 02111-1307, USA.</font> +00024 <font class="comment"> */</font> +00025 +00026 <font class="preprocessor">#include "<a class="code" href="stdmisc_8h.html">stdmisc.h</a>"</font> +00027 +00028 <font class="preprocessor">#include "<a class="code" href="stream_8h.html">nel/misc/stream.h</a>"</font> +00029 +00030 <font class="keyword">using</font> <font class="keyword">namespace </font>std; +00031 +00032 +00033 <font class="keyword">namespace </font>NLMISC +00034 { +00035 +00036 +00037 <font class="comment">// ======================================================================================================</font> +00038 <font class="comment">// ======================================================================================================</font> +00039 <font class="comment">// EStream.</font> +00040 <font class="comment">// ======================================================================================================</font> +00041 <font class="comment">// ======================================================================================================</font> +00042 +00043 +00044 <font class="comment">// ======================================================================================================</font> +<a name="l00045"></a><a class="code" href="structNLMISC_1_1EStream.html#a2">00045</a> EStream::EStream( <font class="keyword">const</font> IStream &f ) : Exception( "In Stream: " + f.getStreamName() + string(": Stream Error") ) +00046 { +00047 <a class="code" href="structNLMISC_1_1EStream.html#m0">StreamName</a>= f.getStreamName(); +00048 } +00049 +<a name="l00050"></a><a class="code" href="structNLMISC_1_1EStream.html#a3">00050</a> EStream::EStream( <font class="keyword">const</font> IStream &f, <font class="keyword">const</font> std::string& str ) +00051 : Exception( "In Stream: " + f.getStreamName() + ": " + str ) +00052 { +00053 <a class="code" href="structNLMISC_1_1EStream.html#m0">StreamName</a>= f.getStreamName(); +00054 } +00055 +00056 +00057 <font class="comment">// ======================================================================================================</font> +00058 <font class="comment">// ======================================================================================================</font> +00059 <font class="comment">// IStream.</font> +00060 <font class="comment">// ======================================================================================================</font> +00061 <font class="comment">// ======================================================================================================</font> +00062 +00063 +00064 <font class="comment">// ======================================================================================================</font> +<a name="l00065"></a><a class="code" href="classNLMISC_1_1IStream.html#r0">00065</a> <font class="keywordtype">bool</font> IStream::_ThrowOnOlder=<font class="keyword">false</font>; +<a name="l00066"></a><a class="code" href="classNLMISC_1_1IStream.html#r1">00066</a> <font class="keywordtype">bool</font> IStream::_ThrowOnNewer=<font class="keyword">true</font>; +00067 +00068 +00069 <font class="comment">// ======================================================================================================</font> +<a name="l00070"></a><a class="code" href="classNLMISC_1_1IStream.html#d0">00070</a> <font class="keywordtype">void</font> IStream::setVersionException(<font class="keywordtype">bool</font> throwOnOlder, <font class="keywordtype">bool</font> throwOnNewer) +00071 { +00072 <a class="code" href="classNLMISC_1_1IStream.html#r0">_ThrowOnOlder</a>=throwOnOlder; +00073 <a class="code" href="classNLMISC_1_1IStream.html#r1">_ThrowOnNewer</a>=throwOnNewer; +00074 } +00075 +00076 <font class="comment">// ======================================================================================================</font> +<a name="l00077"></a><a class="code" href="classNLMISC_1_1IStream.html#d1">00077</a> <font class="keywordtype">void</font> IStream::getVersionException(<font class="keywordtype">bool</font> &throwOnOlder, <font class="keywordtype">bool</font> &throwOnNewer) +00078 { +00079 throwOnOlder=<a class="code" href="classNLMISC_1_1IStream.html#r0">_ThrowOnOlder</a>; +00080 throwOnNewer=<a class="code" href="classNLMISC_1_1IStream.html#r1">_ThrowOnNewer</a>; +00081 } +00082 +00083 +00084 +00085 <font class="comment">/*</font> +00086 <font class="comment"> * Copy constructor</font> +00087 <font class="comment"> */</font> +<a name="l00088"></a><a class="code" href="classNLMISC_1_1IStream.html#a2">00088</a> IStream::IStream( <font class="keyword">const</font> IStream& other ) +00089 { +00090 <a class="code" href="classNLMISC_1_1IStream.html#a3">operator=</a>( other ); +00091 +00092 <font class="comment">// By default, mode _XML is off</font> +00093 <a class="code" href="classNLMISC_1_1IStream.html#o2">_XML</a> = <font class="keyword">false</font>; +00094 } +00095 +00096 +00097 <font class="comment">/*</font> +00098 <font class="comment"> * Assignment operator</font> +00099 <font class="comment"> */</font> +<a name="l00100"></a><a class="code" href="classNLMISC_1_1IStream.html#a3">00100</a> IStream& IStream::operator=( <font class="keyword">const</font> IStream& other ) +00101 { +00102 <a class="code" href="classNLMISC_1_1IStream.html#o0">_InputStream</a> = other._InputStream; +00103 <font class="keywordflow">return</font> *<font class="keyword">this</font>; +00104 } +00105 +00106 +00107 <font class="comment">// ======================================================================================================</font> +00108 <font class="comment">// ======================================================================================================</font> +00109 <font class="comment">// ======================================================================================================</font> +00110 +00111 +00112 <font class="comment">// ======================================================================================================</font> +<a name="l00113"></a><a class="code" href="classNLMISC_1_1IStream.html#c0">00113</a> <font class="keywordtype">void</font> IStream::serialIStreamable(IStreamable* &ptr) +00114 { +00115 uint64 node=0; +00116 +00117 <font class="comment">// Open a node</font> +00118 <a class="code" href="classNLMISC_1_1IStream.html#a39">xmlPushBegin</a> (<font class="stringliteral">"POLYPTR"</font>); +00119 +00120 <font class="keywordflow">if</font>(<a class="code" href="classNLMISC_1_1IStream.html#a4">isReading</a>()) +00121 { +00122 <font class="comment">// First attribute name</font> +00123 <a class="code" href="classNLMISC_1_1IStream.html#a42">xmlSetAttrib</a> (<font class="stringliteral">"id"</font>); +00124 +00125 <a class="code" href="classNLMISC_1_1IStream.html#a5">serial</a>(node); +00126 +00127 <font class="keywordflow">if</font>(node==0) +00128 { +00129 ptr=NULL; +00130 +00131 <font class="comment">// Close the node header</font> +00132 <a class="code" href="classNLMISC_1_1IStream.html#a40">xmlPushEnd</a> (); +00133 } +00134 <font class="keywordflow">else</font> +00135 { +00136 <a class="code" href="classNLMISC_1_1IStream.html#u0">ItIdMap</a> it; +00137 it= <a class="code" href="classNLMISC_1_1IStream.html#o1">_IdMap</a>.find(node); +00138 +00139 <font class="comment">// Test if object already created/read.</font> +00140 <font class="keywordflow">if</font>( it==<a class="code" href="classNLMISC_1_1IStream.html#o1">_IdMap</a>.end() ) +00141 { +00142 <font class="comment">// Read the class name.</font> +00143 string className; +00144 +00145 <font class="comment">// Second attribute name</font> +00146 <a class="code" href="classNLMISC_1_1IStream.html#a42">xmlSetAttrib</a> (<font class="stringliteral">"class"</font>); +00147 +00148 <a class="code" href="classNLMISC_1_1IStream.html#a5">serial</a>(className); +00149 +00150 <font class="comment">// Close the node header</font> +00151 <a class="code" href="classNLMISC_1_1IStream.html#a40">xmlPushEnd</a> (); +00152 +00153 <font class="comment">// Construct object.</font> +00154 ptr= dynamic_cast<IStreamable*> (CClassRegistry::create(className)); +00155 <font class="keywordflow">if</font>(ptr==NULL) +00156 <font class="preprocessor"> #ifdef NL_DEBUG</font> +00157 <font class="preprocessor"></font> <font class="keywordflow">throw</font> EUnregisteredClass(className); +00158 <font class="preprocessor"> #else</font> +00159 <font class="preprocessor"></font> <font class="keywordflow">throw</font> EUnregisteredClass(); +00160 <font class="preprocessor"> #endif</font> +00161 <font class="preprocessor"></font> +00162 +00163 <font class="preprocessor"> #ifdef NL_DEBUG</font> +00164 <font class="preprocessor"></font> <a class="code" href="debug_8h.html#a6">nlassert</a>(CClassRegistry::checkObject(ptr)); +00165 <font class="preprocessor"> #endif</font> +00166 <font class="preprocessor"></font> +00167 <font class="comment">// Insert the node.</font> +00168 <a class="code" href="classNLMISC_1_1IStream.html#o1">_IdMap</a>.insert( <a class="code" href="classNLMISC_1_1IStream.html#u1">ValueIdMap</a>(node, ptr) ); +00169 +00170 <font class="comment">// Read the object!</font> +00171 ptr->serial(*<font class="keyword">this</font>); +00172 } +00173 <font class="keywordflow">else</font> +00174 { +00175 ptr= static_cast<IStreamable*>(it->second); +00176 +00177 <font class="comment">// Close the node header</font> +00178 <a class="code" href="classNLMISC_1_1IStream.html#a40">xmlPushEnd</a> (); +00179 } +00180 } +00181 } +00182 <font class="keywordflow">else</font> +00183 { +00184 <font class="keywordflow">if</font>(ptr==NULL) +00185 { +00186 node= 0; +00187 +00188 <font class="comment">// First attribute name</font> +00189 <a class="code" href="classNLMISC_1_1IStream.html#a42">xmlSetAttrib</a> (<font class="stringliteral">"id"</font>); +00190 +00191 <a class="code" href="classNLMISC_1_1IStream.html#a5">serial</a>(node); +00192 +00193 <font class="comment">// Close the node header</font> +00194 <a class="code" href="classNLMISC_1_1IStream.html#a40">xmlPushEnd</a> (); +00195 } +00196 <font class="keywordflow">else</font> +00197 { +00198 <font class="comment">// Assume that prt size is an int size</font> +00199 <a class="code" href="debug_8h.html#a6">nlassert</a>(<font class="keyword">sizeof</font>(uint) == <font class="keyword">sizeof</font>(<font class="keywordtype">void</font> *)); +00200 node= (uint64)((uint)ptr); +00201 +00202 <font class="comment">// First attribute name</font> +00203 <a class="code" href="classNLMISC_1_1IStream.html#a42">xmlSetAttrib</a> (<font class="stringliteral">"id"</font>); +00204 +00205 <a class="code" href="classNLMISC_1_1IStream.html#a5">serial</a>(node); +00206 +00207 <font class="comment">// Test if object already written.</font> +00208 <font class="comment">// If the Id was not yet registered (ie insert works).</font> +00209 <font class="keywordflow">if</font>( <a class="code" href="classNLMISC_1_1IStream.html#o1">_IdMap</a>.insert( <a class="code" href="classNLMISC_1_1IStream.html#u1">ValueIdMap</a>(node, ptr) ).second==<font class="keyword">true</font> ) +00210 { +00211 <font class="preprocessor"> #ifdef NL_DEBUG</font> +00212 <font class="preprocessor"></font> <a class="code" href="debug_8h.html#a6">nlassert</a>(CClassRegistry::checkObject(ptr)); +00213 <font class="preprocessor"> #endif</font> +00214 <font class="preprocessor"></font> +00215 <font class="comment">// Write the class name.</font> +00216 string className=ptr->getClassName(); +00217 +00218 <font class="comment">// Second attribute name</font> +00219 <a class="code" href="classNLMISC_1_1IStream.html#a42">xmlSetAttrib</a> (<font class="stringliteral">"class"</font>); +00220 +00221 <a class="code" href="classNLMISC_1_1IStream.html#a5">serial</a>(className); +00222 +00223 <font class="comment">// Close the node header</font> +00224 <a class="code" href="classNLMISC_1_1IStream.html#a40">xmlPushEnd</a> (); +00225 +00226 <font class="comment">// Write the object!</font> +00227 ptr->serial(*<font class="keyword">this</font>); +00228 } +00229 <font class="keywordflow">else</font> +00230 { +00231 <font class="comment">// Close the node header</font> +00232 <a class="code" href="classNLMISC_1_1IStream.html#a40">xmlPushEnd</a> (); +00233 } +00234 } +00235 } +00236 +00237 <font class="comment">// Close the node </font> +00238 <a class="code" href="classNLMISC_1_1IStream.html#a41">xmlPop</a> (); +00239 } +00240 <font class="comment">// ======================================================================================================</font> +<a name="l00241"></a><a class="code" href="classNLMISC_1_1IStream.html#b7">00241</a> <font class="keywordtype">void</font> IStream::resetPtrTable() +00242 { +00243 <a class="code" href="classNLMISC_1_1IStream.html#o1">_IdMap</a>.clear(); +00244 } +00245 +00246 +00247 <font class="comment">// ======================================================================================================</font> +00248 <font class="comment">// ======================================================================================================</font> +00249 <font class="comment">// ======================================================================================================</font> +00250 +00251 +00252 <font class="comment">// ======================================================================================================</font> +<a name="l00253"></a><a class="code" href="classNLMISC_1_1IStream.html#a29">00253</a> uint IStream::serialVersion(uint currentVersion) +00254 { +00255 uint8 b=0; +00256 uint32 <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>=0; +00257 uint streamVersion; +00258 +00259 <font class="comment">// Open the node</font> +00260 <a class="code" href="classNLMISC_1_1IStream.html#a38">xmlPush</a> (<font class="stringliteral">"VERSION"</font>); +00261 +00262 <font class="keywordflow">if</font>(<a class="code" href="classNLMISC_1_1IStream.html#a4">isReading</a>()) +00263 { +00264 <a class="code" href="classNLMISC_1_1IStream.html#a5">serial</a>(b); +00265 <font class="keywordflow">if</font>(b==0xFF) +00266 <a class="code" href="classNLMISC_1_1IStream.html#a5">serial</a>(<a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>); +00267 <font class="keywordflow">else</font> +00268 <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>=b; +00269 streamVersion=<a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>; +00270 +00271 <font class="comment">// Exception test.</font> +00272 <font class="keywordflow">if</font>(<a class="code" href="classNLMISC_1_1IStream.html#r0">_ThrowOnOlder</a> && streamVersion < currentVersion) +00273 <font class="keywordflow">throw</font> EOlderStream(*<font class="keyword">this</font>); +00274 <font class="keywordflow">if</font>(<a class="code" href="classNLMISC_1_1IStream.html#r1">_ThrowOnNewer</a> && streamVersion > currentVersion) +00275 <font class="keywordflow">throw</font> ENewerStream(*<font class="keyword">this</font>); +00276 } +00277 <font class="keywordflow">else</font> +00278 { +00279 <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>= streamVersion=currentVersion; +00280 <font class="keywordflow">if</font>(<a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>>=0xFF) +00281 { +00282 b=0xFF; +00283 <a class="code" href="classNLMISC_1_1IStream.html#a5">serial</a>(b); +00284 <a class="code" href="classNLMISC_1_1IStream.html#a5">serial</a>(<a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>); +00285 } +00286 <font class="keywordflow">else</font> +00287 { +00288 b= (uint8)<a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>; +00289 <a class="code" href="classNLMISC_1_1IStream.html#a5">serial</a>(b); +00290 } +00291 } +00292 +00293 <font class="comment">// Close the node</font> +00294 <a class="code" href="classNLMISC_1_1IStream.html#a41">xmlPop</a> (); +00295 +00296 <font class="keywordflow">return</font> streamVersion; +00297 } +00298 +00299 +00300 <font class="comment">// ======================================================================================================</font> +00301 <font class="comment">// ======================================================================================================</font> +00302 <font class="comment">// ======================================================================================================</font> +00303 +00304 <font class="comment">// ======================================================================================================</font> +<a name="l00305"></a><a class="code" href="classNLMISC_1_1IStream.html#a14">00305</a> <font class="keywordtype">void</font> IStream::serialCont(vector<uint8> &cont) +00306 { +00307 sint32 len=0; +00308 <font class="keywordflow">if</font>(<a class="code" href="classNLMISC_1_1IStream.html#a4">isReading</a>()) +00309 { +00310 <a class="code" href="classNLMISC_1_1IStream.html#a5">serial</a>(len); +00311 cont.resize(len); +00312 <font class="keywordflow">if</font> (len != 0) +00313 <a class="code" href="classNLMISC_1_1IStream.html#z327_0">serialBuffer</a>( (uint8*)&(*cont.begin()) , len); +00314 } +00315 <font class="keywordflow">else</font> +00316 { +00317 len= cont.size(); +00318 <a class="code" href="classNLMISC_1_1IStream.html#a5">serial</a>(len); +00319 <font class="keywordflow">if</font> (len != 0) +00320 <a class="code" href="classNLMISC_1_1IStream.html#z327_0">serialBuffer</a>( (uint8*)&(*cont.begin()) , len); +00321 } +00322 } +00323 <font class="comment">// ======================================================================================================</font> +<a name="l00324"></a><a class="code" href="classNLMISC_1_1IStream.html#a15">00324</a> <font class="keywordtype">void</font> IStream::serialCont(vector<sint8> &cont) +00325 { +00326 sint32 len=0; +00327 <font class="keywordflow">if</font>(<a class="code" href="classNLMISC_1_1IStream.html#a4">isReading</a>()) +00328 { +00329 <a class="code" href="classNLMISC_1_1IStream.html#a5">serial</a>(len); +00330 cont.resize(len); +00331 <font class="keywordflow">if</font> (len != 0) +00332 <a class="code" href="classNLMISC_1_1IStream.html#z327_0">serialBuffer</a>( (uint8*)&(*cont.begin()) , len); +00333 } +00334 <font class="keywordflow">else</font> +00335 { +00336 len= cont.size(); +00337 <a class="code" href="classNLMISC_1_1IStream.html#a5">serial</a>(len); +00338 <font class="keywordflow">if</font> (len != 0) +00339 <a class="code" href="classNLMISC_1_1IStream.html#z327_0">serialBuffer</a>( (uint8*)&(*cont.begin()) , len); +00340 } +00341 } +00342 <font class="comment">// ======================================================================================================</font> +<a name="l00343"></a><a class="code" href="classNLMISC_1_1IStream.html#a16">00343</a> <font class="keywordtype">void</font> IStream::serialCont(vector<bool> &cont) +00344 { +00345 sint32 len=0; +00346 vector<uint8> vec; +00347 +00348 <font class="keywordflow">if</font>(<a class="code" href="classNLMISC_1_1IStream.html#a4">isReading</a>()) +00349 { +00350 <a class="code" href="classNLMISC_1_1IStream.html#a5">serial</a>(len); +00351 cont.resize(len); +00352 +00353 <font class="keywordflow">if</font> (len != 0) +00354 { +00355 <font class="comment">// read as uint8*.</font> +00356 sint lb= (len+7)/8; +00357 vec.resize(lb); +00358 <a class="code" href="classNLMISC_1_1IStream.html#z327_0">serialBuffer</a>( (uint8*)&(*vec.begin()) , lb); +00359 <font class="keywordflow">for</font>(sint i=0;i<len;i++) +00360 { +00361 uint bit= (vec[i>>3]>>(i&7)) & 1; +00362 cont[i]= bit?<font class="keyword">true</font>:<font class="keyword">false</font>; +00363 } +00364 } +00365 } +00366 <font class="keywordflow">else</font> +00367 { +00368 len= cont.size(); +00369 <a class="code" href="classNLMISC_1_1IStream.html#a5">serial</a>(len); +00370 +00371 <font class="keywordflow">if</font> (len != 0) +00372 { +00373 <font class="comment">// write as uint8*.</font> +00374 sint lb= (len+7)/8; +00375 vec.resize(lb); +00376 fill_n(vec.begin(), lb, 0); +00377 <font class="keywordflow">for</font>(sint i=0;i<len;i++) +00378 { +00379 uint bit= cont[i]?1:0; +00380 vec[i>>3]|= bit<<(i&7); +00381 } +00382 <a class="code" href="classNLMISC_1_1IStream.html#z327_0">serialBuffer</a>( (uint8*)&(*vec.begin()) , lb); +00383 } +00384 } +00385 +00386 } +00387 <font class="comment">// ======================================================================================================</font> +<a name="l00388"></a><a class="code" href="classNLMISC_1_1IStream.html#a31">00388</a> <font class="keywordtype">bool</font> IStream::seek (sint32 <a class="code" href="driver__opengl__extension__def_8h.html#a378">offset</a>, TSeekOrigin origin) +00389 { +00390 <font class="keywordflow">throw</font> ESeekNotSupported(*<font class="keyword">this</font>); +00391 <font class="keywordflow">return</font> <font class="keyword">false</font>; +00392 } +00393 <font class="comment">// ======================================================================================================</font> +<a name="l00394"></a><a class="code" href="classNLMISC_1_1IStream.html#a32">00394</a> sint32 IStream::getPos () +00395 { +00396 <font class="keywordflow">throw</font> ESeekNotSupported(*<font class="keyword">this</font>); +00397 } +00398 +00399 <font class="comment">// ======================================================================================================</font> +<a name="l00400"></a><a class="code" href="classNLMISC_1_1IStream.html#b8">00400</a> <font class="keywordtype">void</font> IStream::setInOut(<font class="keywordtype">bool</font> inputStream) +00401 { +00402 <a class="code" href="classNLMISC_1_1IStream.html#o0">_InputStream</a>= inputStream; +00403 } +00404 +00405 +00406 <font class="comment">// ======================================================================================================</font> +<a name="l00407"></a><a class="code" href="classNLMISC_1_1IStream.html#a33">00407</a> string IStream::getStreamName()<font class="keyword"> const</font> +00408 <font class="keyword"></font>{ +00409 <font class="keywordflow">return</font> <font class="stringliteral">""</font>; +00410 } +00411 +00412 +00413 <font class="comment">// ======================================================================================================</font> +<a name="l00414"></a><a class="code" href="classNLMISC_1_1IStream.html#b0">00414</a> <font class="keywordtype">void</font> IStream::setXMLMode (<font class="keywordtype">bool</font> on) +00415 { +00416 <a class="code" href="classNLMISC_1_1IStream.html#o2">_XML</a> = on; +00417 } +00418 +00419 +00420 } +00421 +</pre></div> + +<!-- footer --> +<BR><FONT Size=+5> </FONT> +</TD> +<TD WIDTH=15><IMG SRC=http://www.nevrax.org/inc/img/pixel.gif WIDTH=15 HEIGHT=15 BORDER=0 ALT=""></TD> +</TR> +</TABLE> +</BODY> +</HTML> |