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<hr><h1>file.cpp</h1><a href="file_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="file_8h.html">nel/misc/file.h</a>"</font>
00029 <font class="preprocessor">#include "<a class="code" href="debug_8h.html">nel/misc/debug.h</a>"</font>
00030 <font class="preprocessor">#include "<a class="code" href="big__file_8h.html">nel/misc/big_file.h</a>"</font>
00031 
00032 <font class="keyword">using</font> <font class="keyword">namespace </font>std;
00033 
00034 <font class="keyword">namespace </font>NLMISC
00035 {
00036 
<a name="l00037"></a><a class="code" href="classNLMISC_1_1CIFile.html#r0">00037</a> uint32 CIFile::_NbBytesSerialized = 0;
<a name="l00038"></a><a class="code" href="classNLMISC_1_1CIFile.html#r1">00038</a> uint32 CIFile::_NbBytesLoaded = 0;
00039 
00040 <font class="comment">// ======================================================================================================</font>
<a name="l00041"></a><a class="code" href="classNLMISC_1_1CIFile.html#a0">00041</a> CIFile::CIFile() : IStream(true)
00042 {
00043         <a class="code" href="classNLMISC_1_1CIFile.html#o0">_F</a> = NULL;
00044         <a class="code" href="classNLMISC_1_1CIFile.html#o5">_Cache</a> = NULL;
00045         <a class="code" href="classNLMISC_1_1CIFile.html#o6">_ReadPos</a> = 0;
00046         <a class="code" href="classNLMISC_1_1CIFile.html#o7">_FileSize</a> = 0;
00047         <a class="code" href="classNLMISC_1_1CIFile.html#o10">_BigFileOffset</a> = 0;
00048         <a class="code" href="classNLMISC_1_1CIFile.html#o9">_IsInBigFile</a> = <font class="keyword">false</font>;
00049         <a class="code" href="classNLMISC_1_1CIFile.html#o3">_CacheFileOnOpen</a> = <font class="keyword">false</font>;
00050         <a class="code" href="classNLMISC_1_1CIFile.html#o2">_IsAsyncLoading</a> = <font class="keyword">false</font>;
00051         <a class="code" href="classNLMISC_1_1CIFile.html#o4">_AllowBNPCacheFileOnOpen</a>= <font class="keyword">true</font>;
00052 }
00053 
00054 <font class="comment">// ======================================================================================================</font>
<a name="l00055"></a><a class="code" href="classNLMISC_1_1CIFile.html#a1">00055</a> CIFile::CIFile(<font class="keyword">const</font> std::string &amp;path, <font class="keywordtype">bool</font> text) : IStream(true)
00056 {
00057         <a class="code" href="classNLMISC_1_1CIFile.html#o0">_F</a>=NULL;
00058         <a class="code" href="classNLMISC_1_1CIFile.html#o5">_Cache</a> = NULL;
00059         <a class="code" href="classNLMISC_1_1CIFile.html#o6">_ReadPos</a> = 0;
00060         <a class="code" href="classNLMISC_1_1CIFile.html#o7">_FileSize</a> = 0;
00061         <a class="code" href="classNLMISC_1_1CIFile.html#o10">_BigFileOffset</a> = 0;
00062         <a class="code" href="classNLMISC_1_1CIFile.html#o9">_IsInBigFile</a> = <font class="keyword">false</font>;
00063         <a class="code" href="classNLMISC_1_1CIFile.html#o3">_CacheFileOnOpen</a> = <font class="keyword">false</font>;
00064         <a class="code" href="classNLMISC_1_1CIFile.html#o2">_IsAsyncLoading</a> = <font class="keyword">false</font>;
00065         <a class="code" href="classNLMISC_1_1CIFile.html#o4">_AllowBNPCacheFileOnOpen</a>= <font class="keyword">true</font>;
00066         <a class="code" href="classNLMISC_1_1CIFile.html#a3">open</a>(path, text);
00067 }
00068 
00069 <font class="comment">// ======================================================================================================</font>
<a name="l00070"></a><a class="code" href="classNLMISC_1_1CIFile.html#a2">00070</a> CIFile::~CIFile()
00071 {
00072         <a class="code" href="classNLMISC_1_1CIFile.html#a7">close</a>();
00073 }
00074 
00075 
00076 <font class="comment">// ======================================================================================================</font>
<a name="l00077"></a><a class="code" href="classNLMISC_1_1CIFile.html#c0">00077</a> <font class="keywordtype">void</font>            CIFile::loadIntoCache()
00078 {
00079         <font class="keyword">const</font> uint32 READPACKETSIZE = 64 * 1024;
00080         <font class="keyword">const</font> uint32 INTERPACKETSLEEP = 5;
00081 
00082         <a class="code" href="classNLMISC_1_1CIFile.html#o5">_Cache</a> = <font class="keyword">new</font> uint8[<a class="code" href="classNLMISC_1_1CIFile.html#o7">_FileSize</a>];
00083         <font class="keywordflow">if</font>(!<a class="code" href="classNLMISC_1_1CIFile.html#o2">_IsAsyncLoading</a>)
00084         {
00085                 fread (<a class="code" href="classNLMISC_1_1CIFile.html#o5">_Cache</a>, <a class="code" href="classNLMISC_1_1CIFile.html#o7">_FileSize</a>, 1, <a class="code" href="classNLMISC_1_1CIFile.html#o0">_F</a>);
00086         }
00087         <font class="keywordflow">else</font>
00088         {
00089                 uint    <a class="code" href="driver__opengl__extension__def_8h.html#a358">index</a>= 0;
00090                 <font class="keywordflow">while</font>(<a class="code" href="driver__opengl__extension__def_8h.html#a358">index</a>&lt;<a class="code" href="classNLMISC_1_1CIFile.html#o7">_FileSize</a>)
00091                 {
00092                         <font class="keywordflow">if</font>( <a class="code" href="classNLMISC_1_1CIFile.html#r1">_NbBytesLoaded</a> + (<a class="code" href="classNLMISC_1_1CIFile.html#o7">_FileSize</a>-<a class="code" href="driver__opengl__extension__def_8h.html#a358">index</a>) &gt; READPACKETSIZE )
00093                         {
00094                                 sint    n= READPACKETSIZE-<a class="code" href="classNLMISC_1_1CIFile.html#r1">_NbBytesLoaded</a>;
00095                                 n= max(n, 1);
00096                                 fread (<a class="code" href="classNLMISC_1_1CIFile.html#o5">_Cache</a>+<a class="code" href="driver__opengl__extension__def_8h.html#a358">index</a>, n, 1, <a class="code" href="classNLMISC_1_1CIFile.html#o0">_F</a>);
00097                                 <a class="code" href="driver__opengl__extension__def_8h.html#a358">index</a>+= n;
00098 
00099                                 <a class="code" href="namespaceNLMISC.html#a236">nlSleep</a> (INTERPACKETSLEEP);
00100                                 <a class="code" href="classNLMISC_1_1CIFile.html#r1">_NbBytesLoaded</a>= 0;
00101                         }
00102                         <font class="keywordflow">else</font>
00103                         {
00104                                 uint    n= <a class="code" href="classNLMISC_1_1CIFile.html#o7">_FileSize</a>-<a class="code" href="driver__opengl__extension__def_8h.html#a358">index</a>;
00105                                 fread (<a class="code" href="classNLMISC_1_1CIFile.html#o5">_Cache</a>+<a class="code" href="driver__opengl__extension__def_8h.html#a358">index</a>, n, 1, <a class="code" href="classNLMISC_1_1CIFile.html#o0">_F</a>);
00106                                 <a class="code" href="classNLMISC_1_1CIFile.html#r1">_NbBytesLoaded</a>+= n;
00107                                 <a class="code" href="driver__opengl__extension__def_8h.html#a358">index</a>+= n;
00108                         }
00109                 }
00110         }
00111 }
00112 
00113 
00114 <font class="comment">// ======================================================================================================</font>
<a name="l00115"></a><a class="code" href="classNLMISC_1_1CIFile.html#a3">00115</a> <font class="keywordtype">bool</font>            CIFile::open(<font class="keyword">const</font> std::string &amp;path, <font class="keywordtype">bool</font> text)
00116 {
00117         <a class="code" href="classNLMISC_1_1CIFile.html#a7">close</a>();
00118 
00119         <font class="comment">// can't open empty filename</font>
00120         <font class="keywordflow">if</font>(path.empty ())
00121                 <font class="keywordflow">return</font> <font class="keyword">false</font>;
00122 
00123         <font class="keywordtype">char</font> mode[3];
00124         mode[0] = <font class="charliteral">'r'</font>;
00125         mode[1] = (text)?<font class="charliteral">'\0'</font>:<font class="charliteral">'b'</font>;
00126         mode[2] = <font class="charliteral">'\0'</font>;
00127 
00128         <a class="code" href="classNLMISC_1_1CIFile.html#o1">_FileName</a> = path;
00129         <a class="code" href="classNLMISC_1_1CIFile.html#o6">_ReadPos</a> = 0;
00130 
00131         <font class="comment">// Bigfile access requested ?</font>
00132         <font class="keywordflow">if</font> (path.find(<font class="charliteral">'@'</font>) != string::npos)
00133         {
00134                 <a class="code" href="classNLMISC_1_1CIFile.html#o9">_IsInBigFile</a> = <font class="keyword">true</font>;
00135                 <font class="keywordflow">if</font>(_AllowBNPCacheFileOnOpen)
00136                 {
00137                         <a class="code" href="classNLMISC_1_1CIFile.html#o0">_F</a> = CBigFile::getInstance().getFile (path, <a class="code" href="classNLMISC_1_1CIFile.html#o7">_FileSize</a>, <a class="code" href="classNLMISC_1_1CIFile.html#o10">_BigFileOffset</a>, <a class="code" href="classNLMISC_1_1CIFile.html#o3">_CacheFileOnOpen</a>, <a class="code" href="classNLMISC_1_1CIFile.html#o8">_AlwaysOpened</a>);
00138                 }
00139                 <font class="keywordflow">else</font>
00140                 {
00141                         <font class="keywordtype">bool</font>    dummy;
00142                         <a class="code" href="classNLMISC_1_1CIFile.html#o0">_F</a> = CBigFile::getInstance().getFile (path, <a class="code" href="classNLMISC_1_1CIFile.html#o7">_FileSize</a>, <a class="code" href="classNLMISC_1_1CIFile.html#o10">_BigFileOffset</a>, dummy, <a class="code" href="classNLMISC_1_1CIFile.html#o8">_AlwaysOpened</a>);
00143                 }
00144                 <font class="keywordflow">if</font>(<a class="code" href="classNLMISC_1_1CIFile.html#o0">_F</a> != NULL)
00145                 {
00146                         <font class="comment">// Start to load the bigfile at the file offset.</font>
00147                         fseek (<a class="code" href="classNLMISC_1_1CIFile.html#o0">_F</a>, <a class="code" href="classNLMISC_1_1CIFile.html#o10">_BigFileOffset</a>, SEEK_SET);
00148 
00149                         <font class="comment">// Load into cache ?</font>
00150                         <font class="keywordflow">if</font> (_CacheFileOnOpen)
00151                         {
00152                                 <font class="comment">// load file in the cache</font>
00153                                 <a class="code" href="classNLMISC_1_1CIFile.html#c0">loadIntoCache</a>();
00154 
00155                                 <font class="keywordflow">if</font> (!<a class="code" href="classNLMISC_1_1CIFile.html#o8">_AlwaysOpened</a>)
00156                                 {
00157                                         fclose (<a class="code" href="classNLMISC_1_1CIFile.html#o0">_F</a>);
00158                                         <a class="code" href="classNLMISC_1_1CIFile.html#o0">_F</a> = NULL;
00159                                 }
00160                                 <font class="keywordflow">return</font> (<a class="code" href="classNLMISC_1_1CIFile.html#o5">_Cache</a> != NULL);
00161                         }
00162                 }
00163         }
00164         <font class="keywordflow">else</font>
00165         {
00166                 <a class="code" href="classNLMISC_1_1CIFile.html#o9">_IsInBigFile</a> = <font class="keyword">false</font>;
00167                 <a class="code" href="classNLMISC_1_1CIFile.html#o10">_BigFileOffset</a> = 0;
00168                 <a class="code" href="classNLMISC_1_1CIFile.html#o8">_AlwaysOpened</a> = <font class="keyword">false</font>;
00169                 <a class="code" href="classNLMISC_1_1CIFile.html#o0">_F</a> = fopen (path.c_str(), mode);
00170                 <font class="keywordflow">if</font> (<a class="code" href="classNLMISC_1_1CIFile.html#o0">_F</a> != NULL)
00171                 {
00172                         fseek (<a class="code" href="classNLMISC_1_1CIFile.html#o0">_F</a>, 0, SEEK_END);
00173                         <a class="code" href="classNLMISC_1_1CIFile.html#o7">_FileSize</a> = ftell(<a class="code" href="classNLMISC_1_1CIFile.html#o0">_F</a>);
00174                         fseek (<a class="code" href="classNLMISC_1_1CIFile.html#o0">_F</a>, 0, SEEK_SET);
00175                 }
00176                 <font class="keywordflow">else</font>
00177                 {
00178                         <a class="code" href="classNLMISC_1_1CIFile.html#o7">_FileSize</a> = 0;
00179                 }
00180                 
00181                 <font class="keywordflow">if</font> ((_CacheFileOnOpen) &amp;&amp; (<a class="code" href="classNLMISC_1_1CIFile.html#o0">_F</a> != NULL))
00182                 {
00183                         <font class="comment">// load file in the cache</font>
00184                         <a class="code" href="classNLMISC_1_1CIFile.html#c0">loadIntoCache</a>();
00185 
00186                         fclose (<a class="code" href="classNLMISC_1_1CIFile.html#o0">_F</a>);
00187                         <a class="code" href="classNLMISC_1_1CIFile.html#o0">_F</a> = NULL;
00188                         <font class="keywordflow">return</font> (<a class="code" href="classNLMISC_1_1CIFile.html#o5">_Cache</a> != NULL);
00189                 }
00190         }
00191 
00192         <font class="keywordflow">return</font> (<a class="code" href="classNLMISC_1_1CIFile.html#o0">_F</a> != NULL);
00193 }
00194 
00195 <font class="comment">// ======================================================================================================</font>
<a name="l00196"></a><a class="code" href="classNLMISC_1_1CIFile.html#a4">00196</a> <font class="keywordtype">void</font>            CIFile::setCacheFileOnOpen (<font class="keywordtype">bool</font> newState)
00197 {
00198         <a class="code" href="classNLMISC_1_1CIFile.html#o3">_CacheFileOnOpen</a> = newState;
00199 }
00200 
00201 <font class="comment">// ======================================================================================================</font>
<a name="l00202"></a><a class="code" href="classNLMISC_1_1CIFile.html#a6">00202</a> <font class="keywordtype">void</font>            CIFile::setAsyncLoading (<font class="keywordtype">bool</font> newState)
00203 {
00204         <a class="code" href="classNLMISC_1_1CIFile.html#o2">_IsAsyncLoading</a> = <font class="keyword">true</font>;
00205 }
00206 
00207 
00208 <font class="comment">// ======================================================================================================</font>
<a name="l00209"></a><a class="code" href="classNLMISC_1_1CIFile.html#a7">00209</a> <font class="keywordtype">void</font>            CIFile::close()
00210 {
00211         <font class="keywordflow">if</font> (_CacheFileOnOpen)
00212         {
00213                 <font class="keywordflow">if</font> (_Cache)
00214                 {
00215                         <font class="keyword">delete</font> <a class="code" href="classNLMISC_1_1CIFile.html#o5">_Cache</a>;
00216                         <a class="code" href="classNLMISC_1_1CIFile.html#o5">_Cache</a> = NULL;
00217                 }
00218         }
00219         <font class="keywordflow">else</font>
00220         {
00221                 <font class="keywordflow">if</font> (_IsInBigFile)
00222                 {
00223                         <font class="keywordflow">if</font> (!<a class="code" href="classNLMISC_1_1CIFile.html#o8">_AlwaysOpened</a>)
00224                         {
00225                                 <font class="keywordflow">if</font> (_F)
00226                                 {
00227                                         fclose (<a class="code" href="classNLMISC_1_1CIFile.html#o0">_F</a>);
00228                                         <a class="code" href="classNLMISC_1_1CIFile.html#o0">_F</a> = NULL;
00229                                 }
00230                         }
00231                 }
00232                 <font class="keywordflow">else</font>
00233                 {
00234                         <font class="keywordflow">if</font> (_F)
00235                         {
00236                                 fclose (<a class="code" href="classNLMISC_1_1CIFile.html#o0">_F</a>);
00237                                 <a class="code" href="classNLMISC_1_1CIFile.html#o0">_F</a> = NULL;
00238                         }
00239                 }
00240         }
00241         <a class="code" href="classNLMISC_1_1IStream.html#b7">resetPtrTable</a>();
00242 }
00243 
00244 <font class="comment">// ======================================================================================================</font>
<a name="l00245"></a><a class="code" href="classNLMISC_1_1CIFile.html#a8">00245</a> <font class="keywordtype">void</font>            CIFile::flush()
00246 {
00247         <font class="keywordflow">if</font> (_CacheFileOnOpen)
00248         {
00249         }
00250         <font class="keywordflow">else</font>
00251         {
00252                 <font class="keywordflow">if</font> (_F)
00253                 {
00254                         fflush (<a class="code" href="classNLMISC_1_1CIFile.html#o0">_F</a>);
00255                 }
00256         }
00257 }
00258 
00259 <font class="comment">// ======================================================================================================</font>
<a name="l00260"></a><a class="code" href="classNLMISC_1_1CIFile.html#a12">00260</a> <font class="keywordtype">void</font>            CIFile::getline (<font class="keywordtype">char</font> *buffer, uint32 bufferSize)
00261 {
00262         <font class="keywordflow">if</font> (bufferSize == 0)
00263                 <font class="keywordflow">return</font>;
00264 
00265         uint read = 0;
00266         <font class="keywordflow">while</font> (true)
00267         {
00268                 <font class="keywordflow">if</font> (read == bufferSize -1)
00269                 {
00270                         *buffer = <font class="charliteral">'\0'</font>;
00271                         <font class="keywordflow">return</font>;
00272                 }
00273 
00274                 <font class="keywordflow">try</font>
00275                 {
00276                         <font class="comment">// read one byte</font>
00277                         <a class="code" href="classNLMISC_1_1CIFile.html#a15">serialBuffer</a> ((uint8 *)buffer, 1);
00278                 }
00279                 <font class="keywordflow">catch</font> (EFile &amp;)
00280                 {
00281                         *buffer = <font class="charliteral">'\0'</font>;
00282                         <font class="keywordflow">return</font>;
00283                 }
00284 
00285                 <font class="keywordflow">if</font> (*buffer == <font class="charliteral">'\n'</font>)
00286                 {
00287                         *buffer = <font class="charliteral">'\0'</font>;
00288                         <font class="keywordflow">return</font>;
00289                 }
00290 
00291                 <font class="comment">// skip '\r' char</font>
00292                 <font class="keywordflow">if</font> (*buffer != <font class="charliteral">'\r'</font>)
00293                         buffer++;
00294         }
00295 
00296 }
00297 
00298 
00299 <font class="comment">// ======================================================================================================</font>
<a name="l00300"></a><a class="code" href="classNLMISC_1_1CIFile.html#a14">00300</a> <font class="keywordtype">bool</font>            CIFile::eof ()
00301 {
00302         <font class="keywordflow">return</font> <a class="code" href="classNLMISC_1_1CIFile.html#o6">_ReadPos</a> &gt;= (sint32)<a class="code" href="classNLMISC_1_1CIFile.html#o7">_FileSize</a>;
00303 }
00304 
00305 <font class="comment">// ======================================================================================================</font>
<a name="l00306"></a><a class="code" href="classNLMISC_1_1CIFile.html#a15">00306</a> <font class="keywordtype">void</font>            CIFile::serialBuffer(uint8 *buf, uint len) <font class="keywordflow">throw</font>(EReadError)
00307 {
00308         <font class="comment">// Check the read pos</font>
00309         <font class="keywordflow">if</font> ((_ReadPos &lt; 0) || ((_ReadPos+len) &gt; _FileSize))
00310                 <font class="keywordflow">throw</font> EReadError (_FileName);
00311         <font class="keywordflow">if</font> ((_CacheFileOnOpen) &amp;&amp; (_Cache == NULL))
00312                 <font class="keywordflow">throw</font> EFileNotOpened (_FileName);
00313         <font class="keywordflow">if</font> ((!_CacheFileOnOpen) &amp;&amp; (_F == NULL))
00314                 <font class="keywordflow">throw</font> EFileNotOpened (_FileName);
00315 
00316         <font class="keywordflow">if</font> (_IsAsyncLoading)
00317         {
00318                 _NbBytesSerialized += len;
00319                 <font class="keywordflow">if</font> (_NbBytesSerialized &gt; 64 * 1024)
00320                 {
00321                         <a class="code" href="namespaceNLMISC.html#a236">nlSleep</a> (5);
00322                         _NbBytesSerialized = 0;
00323                 }
00324         }
00325 
00326         <font class="keywordflow">if</font> (_CacheFileOnOpen)
00327         {
00328                 memcpy (buf, _Cache + _ReadPos, len);
00329                 _ReadPos += len;
00330         }
00331         <font class="keywordflow">else</font>
00332         {
00333                 <font class="keywordflow">if</font> (fread(buf, 1, len, _F) &lt; len)
00334                         <font class="keywordflow">throw</font> EReadError(_FileName);
00335                 _ReadPos += len;
00336         }
00337 }
00338 
00339 <font class="comment">// ======================================================================================================</font>
<a name="l00340"></a><a class="code" href="classNLMISC_1_1CIFile.html#b0">00340</a> <font class="keywordtype">void</font>            CIFile::serialBit(<font class="keywordtype">bool</font> &amp;bit) <font class="keywordflow">throw</font>(EReadError)
00341 {
00342         <font class="comment">// Simple for now.</font>
00343         uint8   <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>=bit;
00344         serialBuffer(&amp;<a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>, 1);
00345         bit=(<a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>!=0);
00346 }
00347 
00348 <font class="comment">// ======================================================================================================</font>
<a name="l00349"></a><a class="code" href="classNLMISC_1_1CIFile.html#a9">00349</a> <font class="keywordtype">bool</font>            CIFile::seek (sint32 <a class="code" href="driver__opengl__extension__def_8h.html#a378">offset</a>, IStream::TSeekOrigin origin) <font class="keywordflow">throw</font>(EStream)
00350 {
00351         <font class="keywordflow">if</font> ((_CacheFileOnOpen) &amp;&amp; (_Cache == NULL))
00352                 <font class="keywordflow">return</font> <font class="keyword">false</font>;
00353         <font class="keywordflow">if</font> ((!_CacheFileOnOpen) &amp;&amp; (_F == NULL))
00354                 <font class="keywordflow">return</font> <font class="keyword">false</font>;
00355 
00356         <font class="keywordflow">switch</font> (origin)
00357         {
00358                 <font class="keywordflow">case</font> IStream::begin:
00359                         _ReadPos = <a class="code" href="driver__opengl__extension__def_8h.html#a378">offset</a>;
00360                 <font class="keywordflow">break</font>;
00361                 <font class="keywordflow">case</font> IStream::current:
00362                         _ReadPos = _ReadPos + <a class="code" href="driver__opengl__extension__def_8h.html#a378">offset</a>;
00363                 <font class="keywordflow">break</font>;
00364                 <font class="keywordflow">case</font> IStream::end:
00365                         _ReadPos = _FileSize + <a class="code" href="driver__opengl__extension__def_8h.html#a378">offset</a>; 
00366                 <font class="keywordflow">break</font>;
00367                 <font class="keywordflow">default</font>:
00368                         <a class="code" href="debug_8h.html#a12">nlstop</a>;
00369         }
00370 
00371         <font class="keywordflow">if</font> (_CacheFileOnOpen)
00372                 <font class="keywordflow">return</font> <font class="keyword">true</font>;
00373 
00374         <font class="comment">// seek in the file. NB: if not in bigfile, _BigFileOffset==0.</font>
00375         <font class="keywordflow">if</font> (fseek(_F, _BigFileOffset+_ReadPos, SEEK_SET) != 0)
00376                 <font class="keywordflow">return</font> <font class="keyword">false</font>;
00377         <font class="keywordflow">return</font> <font class="keyword">true</font>;
00378 }
00379 
00380 <font class="comment">// ======================================================================================================</font>
<a name="l00381"></a><a class="code" href="classNLMISC_1_1CIFile.html#a10">00381</a> sint32          CIFile::getPos () <font class="keywordflow">throw</font>(EStream)
00382 {
00383         <font class="keywordflow">return</font> _ReadPos;
00384 }
00385 
00386 
00387 <font class="comment">// ======================================================================================================</font>
<a name="l00388"></a><a class="code" href="classNLMISC_1_1CIFile.html#a11">00388</a> std::string     CIFile::getStreamName()<font class="keyword"> const</font>
00389 <font class="keyword"></font>{
00390         <font class="keywordflow">return</font> <a class="code" href="classNLMISC_1_1CIFile.html#o1">_FileName</a>;
00391 }
00392 
00393 
00394 <font class="comment">// ======================================================================================================</font>
<a name="l00395"></a><a class="code" href="classNLMISC_1_1CIFile.html#a5">00395</a> <font class="keywordtype">void</font>    CIFile::allowBNPCacheFileOnOpen(<font class="keywordtype">bool</font> newState)
00396 {
00397         <a class="code" href="classNLMISC_1_1CIFile.html#o4">_AllowBNPCacheFileOnOpen</a>= newState;
00398 }
00399 
00400 
00401 <font class="comment">// ======================================================================================================</font>
00402 <font class="comment">// ======================================================================================================</font>
00403 <font class="comment">// ======================================================================================================</font>
00404 
00405 
00406 <font class="comment">// ======================================================================================================</font>
<a name="l00407"></a><a class="code" href="classNLMISC_1_1COFile.html#a0">00407</a> COFile::COFile() : IStream(false)
00408 {
00409         <a class="code" href="classNLMISC_1_1COFile.html#o0">_F</a>=NULL;
00410         <a class="code" href="classNLMISC_1_1COFile.html#o1">_FileName</a> = <font class="stringliteral">""</font>;
00411 }
00412 
00413 <font class="comment">// ======================================================================================================</font>
<a name="l00414"></a><a class="code" href="classNLMISC_1_1COFile.html#a1">00414</a> COFile::COFile(<font class="keyword">const</font> std::string &amp;path, <font class="keywordtype">bool</font> append, <font class="keywordtype">bool</font> text) : IStream(false)
00415 {
00416         <a class="code" href="classNLMISC_1_1COFile.html#o0">_F</a>=NULL;
00417         <a class="code" href="classNLMISC_1_1COFile.html#a3">open</a>(path, append, text);
00418 }
00419 
00420 <font class="comment">// ======================================================================================================</font>
<a name="l00421"></a><a class="code" href="classNLMISC_1_1COFile.html#a2">00421</a> COFile::~COFile()
00422 {
00423         <a class="code" href="classNLMISC_1_1COFile.html#a4">close</a>();
00424 }
00425 <font class="comment">// ======================================================================================================</font>
<a name="l00426"></a><a class="code" href="classNLMISC_1_1COFile.html#a3">00426</a> <font class="keywordtype">bool</font>    COFile::open(<font class="keyword">const</font> std::string &amp;path, <font class="keywordtype">bool</font> append, <font class="keywordtype">bool</font> text)
00427 {
00428         <a class="code" href="classNLMISC_1_1COFile.html#a4">close</a>();
00429 
00430         <font class="comment">// can't open empty filename</font>
00431         <font class="keywordflow">if</font>(path.empty ())
00432                 <font class="keywordflow">return</font> <font class="keyword">false</font>;
00433 
00434         <font class="keywordtype">char</font> mode[3];
00435         mode[0] = (append)?<font class="charliteral">'a'</font>:<font class="charliteral">'w'</font>;
00436         mode[1] = (text)?<font class="charliteral">'\0'</font>:<font class="charliteral">'b'</font>;
00437         mode[2] = <font class="charliteral">'\0'</font>;
00438 
00439         <a class="code" href="classNLMISC_1_1COFile.html#o0">_F</a>=fopen(path.c_str(), mode);
00440         <a class="code" href="classNLMISC_1_1COFile.html#o1">_FileName</a> = path;
00441 
00442         <font class="keywordflow">return</font> <a class="code" href="classNLMISC_1_1COFile.html#o0">_F</a>!=NULL;
00443 }
00444 <font class="comment">// ======================================================================================================</font>
<a name="l00445"></a><a class="code" href="classNLMISC_1_1COFile.html#a4">00445</a> <font class="keywordtype">void</font>    COFile::close()
00446 {
00447         <font class="keywordflow">if</font>(_F)
00448         {
00449                 fclose(<a class="code" href="classNLMISC_1_1COFile.html#o0">_F</a>);
00450                 <a class="code" href="classNLMISC_1_1COFile.html#o0">_F</a>=NULL;
00451         }
00452         <a class="code" href="classNLMISC_1_1IStream.html#b7">resetPtrTable</a>();
00453 }
00454 <font class="comment">// ======================================================================================================</font>
<a name="l00455"></a><a class="code" href="classNLMISC_1_1COFile.html#a5">00455</a> <font class="keywordtype">void</font>    COFile::flush()
00456 {
00457         <font class="keywordflow">if</font>(_F)
00458         {
00459                 fflush(<a class="code" href="classNLMISC_1_1COFile.html#o0">_F</a>);
00460         }
00461 }
00462 
00463 
00464 <font class="comment">// ======================================================================================================</font>
<a name="l00465"></a><a class="code" href="classNLMISC_1_1COFile.html#a9">00465</a> <font class="keywordtype">void</font>            COFile::serialBuffer(uint8 *buf, uint len) <font class="keywordflow">throw</font>(EWriteError)
00466 {
00467         <font class="keywordflow">if</font>(!_F)
00468                 <font class="keywordflow">throw</font>   EFileNotOpened(_FileName);
00469         <font class="keywordflow">if</font>(fwrite(buf, 1, len, _F) &lt; len)
00470                 <font class="keywordflow">throw</font>   EWriteError(_FileName);
00471 }
00472 <font class="comment">// ======================================================================================================</font>
<a name="l00473"></a><a class="code" href="classNLMISC_1_1COFile.html#b0">00473</a> <font class="keywordtype">void</font>            COFile::serialBit(<font class="keywordtype">bool</font> &amp;bit) <font class="keywordflow">throw</font>(EWriteError)
00474 {
00475         <font class="comment">// Simple for now.</font>
00476         uint8   <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>=bit;
00477         serialBuffer(&amp;<a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>, 1);
00478 }
00479 <font class="comment">// ======================================================================================================</font>
<a name="l00480"></a><a class="code" href="classNLMISC_1_1COFile.html#a6">00480</a> <font class="keywordtype">bool</font>            COFile::seek (sint32 <a class="code" href="driver__opengl__extension__def_8h.html#a378">offset</a>, IStream::TSeekOrigin origin) <font class="keywordflow">throw</font>(EStream)
00481 {
00482         <font class="keywordflow">if</font> (_F)
00483         {
00484                 <font class="keywordtype">int</font> origin_c = SEEK_SET;
00485                 <font class="keywordflow">switch</font> (origin)
00486                 {
00487                 <font class="keywordflow">case</font> IStream::begin:
00488                         origin_c=SEEK_SET;
00489                         <font class="keywordflow">break</font>;
00490                 <font class="keywordflow">case</font> IStream::current:
00491                         origin_c=SEEK_CUR;
00492                         <font class="keywordflow">break</font>;
00493                 <font class="keywordflow">case</font> IStream::end:
00494                         origin_c=SEEK_END;
00495                         <font class="keywordflow">break</font>;
00496                 <font class="keywordflow">default</font>:
00497                         <a class="code" href="debug_8h.html#a12">nlstop</a>;
00498                 }
00499 
00500                 <font class="keywordflow">if</font> (fseek (_F, <a class="code" href="driver__opengl__extension__def_8h.html#a378">offset</a>, origin_c)!=0)
00501                         <font class="keywordflow">return</font> <font class="keyword">false</font>;
00502                 <font class="keywordflow">return</font> <font class="keyword">true</font>;
00503         }
00504         <font class="keywordflow">return</font> <font class="keyword">false</font>;
00505 }
00506 <font class="comment">// ======================================================================================================</font>
<a name="l00507"></a><a class="code" href="classNLMISC_1_1COFile.html#a7">00507</a> sint32          COFile::getPos () <font class="keywordflow">throw</font>(EStream)
00508 {
00509         <font class="keywordflow">if</font> (_F)
00510         {
00511                 <font class="keywordflow">return</font> ftell (_F);
00512         }
00513         <font class="keywordflow">return</font> 0;
00514 }
00515 
00516 <font class="comment">// ======================================================================================================</font>
<a name="l00517"></a><a class="code" href="classNLMISC_1_1COFile.html#a8">00517</a> std::string             COFile::getStreamName()<font class="keyword"> const</font>
00518 <font class="keyword"></font>{
00519         <font class="keywordflow">return</font> <a class="code" href="classNLMISC_1_1COFile.html#o1">_FileName</a>;
00520 }
00521 
00522 
00523 }
</pre></div>

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