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<a class="qindex" href="index.html">Main Page</a> <a class="qindex" href="namespaces.html">Namespace List</a> <a class="qindex" href="hierarchy.html">Class Hierarchy</a> <a class="qindex" href="classes.html">Alphabetical List</a> <a class="qindex" href="annotated.html">Compound List</a> <a class="qindex" href="files.html">File List</a> <a class="qindex" href="namespacemembers.html">Namespace Members</a> <a class="qindex" href="functions.html">Compound Members</a> <a class="qindex" href="globals.html">File Members</a> <a class="qindex" href="pages.html">Related Pages</a> <a class="qindexRef" 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>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 &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><<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>) > 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 &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) && (<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 &)
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> >= (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 < 0) || ((_ReadPos+len) > _FileSize))
00310 <font class="keywordflow">throw</font> EReadError (_FileName);
00311 <font class="keywordflow">if</font> ((_CacheFileOnOpen) && (_Cache == NULL))
00312 <font class="keywordflow">throw</font> EFileNotOpened (_FileName);
00313 <font class="keywordflow">if</font> ((!_CacheFileOnOpen) && (_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 > 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) < 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> &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(&<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) && (_Cache == NULL))
00352 <font class="keywordflow">return</font> <font class="keyword">false</font>;
00353 <font class="keywordflow">if</font> ((!_CacheFileOnOpen) && (_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 &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 &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) < 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> &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(&<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 }
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