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<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
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