subsql_8h-source.html

俄罗斯牛人KK的作品,著名的ORDBMS,这里上传最新的3.39版本源代码.希望了解对象关系数据库的同好,请不要错过.

00196     }
00197 
00198     <span class="keywordtype">bool</span> expect(<span class="keywordtype">int</span> sourcePos, <span class="keywordtype">char</span>* expected) { 
00199         token tkn = scan();
00200         <span class="keywordflow">if</span> (tkn != xml_ident) { 
00201             fprintf(stderr, <span class="stringliteral">"subsql.cpp:%d: line %d, column %d: Get token %d instead of expected identifier\n"</span>, 
00202                     sourcePos, line, pos, tkn);
00203             <span class="keywordflow">return</span> <span class="keyword">false</span>;
00204         }
00205         <span class="keywordflow">if</span> (strcmp(ident, expected) != 0) { 
00206             fprintf(stderr, <span class="stringliteral">"subsql.cpp:%d: line %d, column %d: Get tag '%s' instead of expected '%s'\n"</span>, 
00207                     sourcePos, line, pos, ident, expected);
00208             <span class="keywordflow">return</span> <span class="keyword">false</span>;
00209         }
00210         <span class="keywordflow">return</span> <span class="keyword">true</span>;
00211     }
00212 
00213   <span class="keyword">private</span>:
00214     <span class="keywordtype">int</span>   get();
00215     <span class="keywordtype">void</span>  unget(<span class="keywordtype">int</span> ch);
00216 
00217     <span class="keywordtype">int</span>       line;
00218     <span class="keywordtype">int</span>       pos;
00219     FILE*     in;
00220     <span class="keywordtype">char</span>*     sconst;
00221     size_t    size;
00222     size_t    slen;
00223     db_int8   iconst;
00224     <span class="keywordtype">double</span>    fconst;
00225     <span class="keywordtype">char</span>      ident[MaxIdentSize];
00226 };
00227 
00228 <span class="keyword">class </span>dbTmpAllocator { 
00229     <span class="keyword">enum</span> { 
00230         CHUNK_SIZE = 4096
00231     };
00232     <span class="keyword">struct </span>Chunk { 
00233         Chunk* next;
00234         Chunk* prev; <span class="comment">// is not used, added for alignment</span>
00235     };
00236     Chunk* curr;
00237     size_t used;
00238 
00239   <span class="keyword">public</span>:
00240     dbTmpAllocator() { 
00241         curr = NULL;
00242         used = CHUNK_SIZE;
00243     }
00244 
00245     ~dbTmpAllocator() { 
00246         reset();
00247     }
00248 
00249     <span class="keywordtype">void</span> reset() { 
00250         Chunk *c, *next; 
00251         <span class="keywordflow">for</span> (c = curr; c != NULL; c = next) { 
00252             next = c-&gt;next;
00253             dbFree(c);
00254         }
00255         curr = NULL;
00256         used = CHUNK_SIZE;
00257     }
00258 
00259 
00260     <span class="keywordtype">void</span>* alloc(size_t size) { 
00261         size = DOALIGN(size, 8);
00262         <span class="keywordflow">if</span> (size &gt; CHUNK_SIZE/2) { 
00263             Chunk* newChunk = (Chunk*)dbMalloc(size + <span class="keyword">sizeof</span>(Chunk));
00264             <span class="keywordflow">if</span> (curr != NULL) { 
00265                 newChunk-&gt;next = curr-&gt;next;
00266                 curr-&gt;next = newChunk;
00267             } <span class="keywordflow">else</span> { 
00268                 curr = newChunk;
00269                 newChunk-&gt;next = NULL;
00270                 used = CHUNK_SIZE;
00271             }
00272             <span class="keywordflow">return</span> newChunk+1;
00273         } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (size &lt;= CHUNK_SIZE - used) { 
00274             used += size;
00275             <span class="keywordflow">return</span> (<span class="keywordtype">char</span>*)curr + used - size;
00276         } <span class="keywordflow">else</span> { 
00277             Chunk* newChunk = (Chunk*)dbMalloc(CHUNK_SIZE);
00278             used = <span class="keyword">sizeof</span>(Chunk) + size;
00279             newChunk-&gt;next = curr;
00280             curr = newChunk;
00281             <span class="keywordflow">return</span> newChunk+1;
00282         }
00283     }
00284 };
00285 
00286 <span class="keyword">class </span>dbSubSql : <span class="keyword">public</span> <a class="code" href="classdbDatabase.html">dbDatabase</a> { 
00287   <span class="keyword">private</span>:
00288     <span class="keywordtype">int</span>   pos;
00289     <span class="keywordtype">int</span>   line;
00290     <span class="keywordtype">int</span>   tknPos;
00291     <span class="keywordtype">char</span>* buf;
00292     <span class="keywordtype">int</span>   buflen;
00293     FILE* in;
00294     <span class="keywordtype">bool</span>  opened;
00295     db_int8  ival;
00296     real8 fval;
00297     <span class="keywordtype">char</span>* name;
00298 
00299     oid_t*  oidMap;
00300     oid_t   oidMapSize;
00301 
00302     dbTmpAllocator tmpAlloc;
00303  
00304     <span class="keyword">static</span> <span class="keywordtype">char</span>* prompt;
00305 
00306     <a class="code" href="classdbTableDescriptor.html">dbTableDescriptor</a>* droppedTables;
00307     <a class="code" href="classdbTableDescriptor.html">dbTableDescriptor</a>* existedTables;
00308 
00309     <a class="code" href="classdbQuery.html">dbQuery</a> query;
00310     dbCompiler compiler;
00311 
00312     <span class="keywordtype">int</span>      ungetToken;
00313     <span class="keywordtype">bool</span>     autocommit;
00314 
00315     <span class="keywordtype">bool</span>     dotIsPartOfIdentifier;
00316     <span class="keywordtype">char</span>*    dateFormat;
00317 
00318     dbThread httpServerThread;
00319     HTTPapi* httpServer;
00320     <span class="keywordtype">bool</span>     httpServerRunning;
00321     <span class="keywordtype">char</span>*    queryHistory[MAX_HISTORY_SIZE];
00322     <span class="keywordtype">unsigned</span> historyUsed;
00323     <span class="keywordtype">unsigned</span> historyCurr;
00324     <span class="keyword">static</span> <span class="keywordtype">void</span> thread_proc httpServerThreadProc(<span class="keywordtype">void</span>* arg);
00325     
00326     <span class="keywordtype">void</span> deleteColumns(<a class="code" href="classdbFieldDescriptor.html">dbFieldDescriptor</a>* columns);
00327 
00328     <span class="keywordtype">void</span> httpServerLoop();
00329 
00330     <span class="keywordtype">void</span> startHttpServer(<span class="keywordtype">char</span> <span class="keyword">const</span>* address);
00331     <span class="keywordtype">void</span> stopHttpServer(<span class="keywordtype">char</span> <span class="keyword">const</span>* address);
00332 
00333     <span class="keywordtype">void</span> handleError(dbErrorClass error, <span class="keywordtype">char</span> <span class="keyword">const</span>* msg = NULL,  <span class="keywordtype">int</span> arg = 0);
00334 
00335     <span class="keywordtype">void</span> error(<span class="keywordtype">char</span> <span class="keyword">const</span>* msg);
00336     <span class="keywordtype">void</span> warning(<span class="keywordtype">char</span> <span class="keyword">const</span>* msg);
00337 
00338     <span class="keywordtype">void</span> profile();
00339 
00340     <span class="keywordtype">int</span>  <a class="code" href="classdbDatabase.html#dbSubSqlb10">get</a>();
00341     <span class="keywordtype">void</span> unget(<span class="keywordtype">int</span> ch);
00342     <span class="keywordtype">int</span>  scan();
00343     <span class="keywordtype">bool</span> parse();
00344 
00345     <span class="keywordtype">bool</span> expect(<span class="keywordtype">char</span>* expected, <span class="keywordtype">int</span> token);
00346     
00347     <span class="keywordtype">void</span> recovery();
00348 
00349     <span class="keywordtype">void</span> exportDatabase(FILE* out);
00350     <span class="keywordtype">bool</span> importDatabase(FILE* in);
00351    
00352     <span class="keywordtype">void</span> exportScheme(FILE* out);
00353     <span class="keywordtype">void</span> exportClass(FILE* out, <span class="keywordtype">char</span>* name, <a class="code" href="classdbFieldDescriptor.html">dbFieldDescriptor</a>* fieldList);
00354    
00355     oid_t mapId(<span class="keywordtype">long</span> id);
00356     <span class="keywordtype">bool</span> importField(<span class="keywordtype">char</span>* terminator, <a class="code" href="classdbFieldDescriptor.html">dbFieldDescriptor</a>* fd, byte* rec, dbXmlScanner&amp; scanner);
00357     <span class="keywordtype">bool</span> importRecord(<span class="keywordtype">char</span>* terminator, <a class="code" href="classdbFieldDescriptor.html">dbFieldDescriptor</a>* fieldList, byte* rec, dbXmlScanner&amp; scanner);
00358     <span class="keywordtype">void</span> <a class="code" href="classdbDatabase.html#dbSubSqla30">insertRecord</a>(<a class="code" href="classdbTableDescriptor.html">dbTableDescriptor</a>* desc, oid_t oid, <span class="keywordtype">void</span> <span class="keyword">const</span>* record);
00359 
00360     <span class="keywordtype">bool</span> isValidOid(oid_t oid);
00361 
00362     <span class="keywordtype">void</span> dumpRecord(byte* record, <a class="code" href="classdbFieldDescriptor.html">dbFieldDescriptor</a>* first);
00363     <span class="keyword">static</span> <span class="keywordtype">int</span> calculateRecordSize(dbList* list, <span class="keywordtype">int</span> offs,
00364                                    <a class="code" href="classdbFieldDescriptor.html">dbFieldDescriptor</a>* first);
00365     <span class="keywordtype">int</span>  initializeRecordFields(dbList* node, byte* dst, <span class="keywordtype">int</span> offs, 
00366                                       <a class="code" href="classdbFieldDescriptor.html">dbFieldDescriptor</a>* first);
00367     <span class="keywordtype">bool</span> <a class="code" href="classdbDatabase.html#dbSubSqla30">insertRecord</a>(dbList* list, <a class="code" href="classdbTableDescriptor.html">dbTableDescriptor</a>* desc);
00368     <span class="keywordtype">bool</span> readCondition();
00369     <span class="keywordtype">int</span>  readExpression();
00370     <span class="keywordtype">int</span>  readValues(dbList** chain);
00371     <span class="keywordtype">bool</span> updateFields(<a class="code" href="classdbAnyCursor.html">dbAnyCursor</a>* cursor, dbUpdateElement* elems);
00372     <span class="keywordtype">bool</span> updateTable(<span class="keywordtype">bool</span> create);
00373     <span class="keywordtype">int</span>  parseType(<span class="keywordtype">char</span>*&amp; refTableName, <span class="keywordtype">char</span>*&amp; inverseRefName);
00374     <span class="keywordtype">int</span>  updateRecords(<a class="code" href="classdbTableDescriptor.html">dbTableDescriptor</a>* desc, dbList *fields, dbList *values, <a class="code" href="classdbAnyCursor.html">dbAnyCursor</a> &amp;cursor, byte *buf);
00375     <a class="code" href="classdbFieldDescriptor.html">dbFieldDescriptor</a>* readFieldName();
00376 
00377   <span class="keyword">public</span>:
00378     <span class="keywordtype">void</span> run(<span class="keywordtype">int</span> firstParam, <span class="keywordtype">int</span> argc, <span class="keywordtype">char</span>* argv[]);
00379     <span class="keywordtype">void</span> selectionPage(WWWconnection&amp; con);
00380     <span class="keywordtype">void</span> queryPage(WWWconnection&amp; con);
00381     <span class="keywordtype">void</span> defaultPage(WWWconnection&amp; con);
00382     
00383     dbSubSql(dbAccessType accessType);
00384     <span class="keyword">virtual</span>~dbSubSql();
00385 };   
00386 
00387 
00388 END_FASTDB_NAMESPACE
00389 
00390 <span class="preprocessor">#endif</span>
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