localcli_8h-source.html

FastDb是高效的内存数据库系统

00167         free_chain = next;
00168     }
00169 
00170     ~descriptor_table() { 
00171         <span class="keyword">delete</span>[] table;
00172     }
00173 
00174     T* get(<span class="keywordtype">int</span> desc) {
00175         dbCriticalSection cs(mutex);
00176         <span class="keywordflow">return</span> (desc &gt;= descriptor_table_size) ? (T*)0 : table[desc];
00177     }
00178 
00179     T* allocate() {
00180         dbCriticalSection cs(mutex);
00181         <span class="keywordflow">if</span> (free_chain == NULL) {
00182             <span class="keywordtype">int</span> i, n;
00183             T** desc = <span class="keyword">new</span> T*[descriptor_table_size * 2];
00184             memcpy(desc, table, descriptor_table_size*<span class="keyword">sizeof</span>(T*));
00185             <span class="keyword">delete</span>[] table;
00186             table = desc;
00187             T* next = NULL;
00188             <span class="keywordflow">for</span> (i = descriptor_table_size, n = i*2; i &lt; n; i++) {
00189                 table[i] = next = <span class="keyword">new</span> T(i, next);
00190             }
00191             free_chain = next;
00192             descriptor_table_size = n;
00193         }
00194         T* desc = free_chain;
00195         free_chain = desc-&gt;next;
00196         <span class="keywordflow">return</span> desc;
00197     }
00198 };
00199 
00200 <span class="keyword">class </span>FASTDB_DLL_ENTRY dbCLI { 
00201   <span class="keyword">private</span>:
00202     fixed_size_object_allocator&lt;column_binding&gt; column_allocator;
00203     fixed_size_object_allocator&lt;parameter_binding&gt; parameter_allocator;
00204     
00205     descriptor_table&lt;session_desc&gt;   sessions;
00206     descriptor_table&lt;statement_desc&gt; statements;
00207 
00208     session_desc* active_session_list;
00209     
00210     dbMutex sessionMutex;    
00211     
00212     <span class="keyword">static</span> <span class="keywordtype">int</span> calculate_varying_length(<span class="keywordtype">char</span> <span class="keyword">const</span>* tableName, <span class="keywordtype">int</span>&amp; nFields, cli_field_descriptor* columns);
00213     <span class="keyword">static</span> <a class="code" href="classdbTableDescriptor.html">dbTableDescriptor</a>* create_table_descriptor(<a class="code" href="classdbDatabase.html">dbDatabase</a>*           db, 
00214                                                       oid_t                 oid, 
00215                                                       <a class="code" href="classdbTable.html">dbTable</a>*              table, 
00216                                                       <span class="keywordtype">char</span> <span class="keyword">const</span>*           tableName, 
00217                                                       <span class="keywordtype">int</span>                   nFields, 
00218                                                       <span class="keywordtype">int</span>                   nColumns, 
00219                                                       cli_field_descriptor* columns);
00220     
00221   <span class="keyword">public</span>:
00222     <span class="keyword">static</span> dbCLI instance;
00223 
00224     dbCLI() { 
00225         active_session_list = NULL; 
00226     }
00227 
00228     <span class="keywordtype">int</span> create_session(<span class="keywordtype">char</span> <span class="keyword">const</span>* databasePath,
00229                        <span class="keywordtype">char</span> <span class="keyword">const</span>* filePath,
00230                        <span class="keywordtype">unsigned</span>    transactionCommitDelay, 
00231                        <span class="keywordtype">int</span>         openAttr, 
00232                        size_t      initDatabaseSize,
00233                        size_t      extensionQuantum,
00234                        size_t      initIndexSize,
00235                        size_t      fileSizeLimit);   
00236 
00237 
00238     <span class="keywordtype">int</span> create_replication_node(<span class="keywordtype">int</span>         nodeId,
00239                                 <span class="keywordtype">int</span>         nServers,
00240                                 <span class="keywordtype">char</span>*       nodeNames[],
00241                                 <span class="keywordtype">char</span> <span class="keyword">const</span>* databaseName, 
00242                                 <span class="keywordtype">char</span> <span class="keyword">const</span>* filePath, 
00243                                 <span class="keywordtype">int</span>         openAttr, 
00244                                 size_t      initDatabaseSize,
00245                                 size_t      extensionQuantum,
00246                                 size_t      initIndexSize,
00247                                 size_t      fileSizeLimit);
00248 
00249     <span class="keywordtype">int</span> create_statement(<span class="keywordtype">int</span> session, <span class="keywordtype">char</span> <span class="keyword">const</span>* sql);
00250 
00251     <span class="keywordtype">int</span> bind_parameter(<span class="keywordtype">int</span>         statement,
00252                        <span class="keywordtype">char</span> <span class="keyword">const</span>* param_name,
00253                        <span class="keywordtype">int</span>         var_type,
00254                        <span class="keywordtype">void</span>*       var_ptr);
00255 
00256     <span class="keywordtype">int</span> bind_column(<span class="keywordtype">int</span>         statement,
00257                     <span class="keywordtype">char</span> <span class="keyword">const</span>* column_name,
00258                     <span class="keywordtype">int</span>         var_type,
00259                     <span class="keywordtype">int</span>*        var_len,
00260                     <span class="keywordtype">void</span>*       var_ptr);
00261 
00262     <span class="keywordtype">int</span> bind_array_column(<span class="keywordtype">int</span>               statement,
00263                           <span class="keywordtype">char</span> <span class="keyword">const</span>*       column_name,
00264                           <span class="keywordtype">int</span>               var_type,
00265                           <span class="keywordtype">void</span>*             var_ptr,
00266                           cli_column_set_ex set,
00267                           cli_column_get_ex get);
00268         
00269     <span class="keywordtype">int</span> fetch(<span class="keywordtype">int</span> statement, <span class="keywordtype">int</span> for_update);
00270 
00271     <span class="keywordtype">int</span> fetch_columns(statement_desc* stmt);
00272     <span class="keywordtype">int</span> store_columns(<span class="keywordtype">char</span>* buf, statement_desc* stmt);
00273 
00274     <span class="keywordtype">int</span> insert(<span class="keywordtype">int</span> statement, cli_oid_t* oid);
00275     <span class="keywordtype">int</span> update(<span class="keywordtype">int</span> statement);
00276 
00277     <span class="keywordtype">int</span> freeze(<span class="keywordtype">int</span> statement);
00278     <span class="keywordtype">int</span> unfreeze(<span class="keywordtype">int</span> statement);
00279 
00280     <span class="keywordtype">int</span> get_first(<span class="keywordtype">int</span> statement);
00281     <span class="keywordtype">int</span> get_last(<span class="keywordtype">int</span> statement);
00282     <span class="keywordtype">int</span> get_next(<span class="keywordtype">int</span> statement);
00283     <span class="keywordtype">int</span> get_prev(<span class="keywordtype">int</span> statement);
00284     <span class="keywordtype">int</span> skip(<span class="keywordtype">int</span> statement, <span class="keywordtype">int</span> n);
00285     <span class="keywordtype">int</span> seek(<span class="keywordtype">int</span> statement, cli_oid_t oid);
00286 
00287     cli_oid_t get_current_oid(<span class="keywordtype">int</span> statement);
00288     <span class="keywordtype">int</span> free_statement(<span class="keywordtype">int</span> statement);
00289     <span class="keywordtype">int</span> free_statement(statement_desc* stmt);
00290     
00291     <span class="keywordtype">int</span> commit(<span class="keywordtype">int</span> session);
00292     <span class="keywordtype">int</span> precommit(<span class="keywordtype">int</span> session);
00293     <span class="keywordtype">int</span> abort(<span class="keywordtype">int</span> session);
00294 
00295     <span class="keywordtype">int</span> remove(<span class="keywordtype">int</span> statement);
00296 
00297     <span class="keywordtype">int</span> describe(<span class="keywordtype">int</span> session, <span class="keywordtype">char</span> <span class="keyword">const</span>* table, cli_field_descriptor** fields);
00298     <span class="keywordtype">int</span> show_tables(<span class="keywordtype">int</span> session, cli_table_descriptor** tables);
00299 
00300     <span class="keywordtype">int</span> match_columns(<span class="keywordtype">char</span> <span class="keyword">const</span>* table_name, statement_desc* stmt);
00301 
00302     <span class="keywordtype">int</span> create_table(<span class="keywordtype">int</span> session, <span class="keywordtype">char</span> <span class="keyword">const</span>* tableName, <span class="keywordtype">int</span> nColumns, 
00303                      cli_field_descriptor* columns);
00304     <span class="keywordtype">int</span> alter_table(<span class="keywordtype">int</span> session, <span class="keywordtype">char</span> <span class="keyword">const</span>* tableName, <span class="keywordtype">int</span> nColumns, 
00305                     cli_field_descriptor* columns);
00306 
00307     <span class="keywordtype">int</span> drop_table(<span class="keywordtype">int</span> session, <span class="keywordtype">char</span> <span class="keyword">const</span>* tableName);
00308 
00309     <span class="keywordtype">int</span> alter_index(<span class="keywordtype">int</span> session, <span class="keywordtype">char</span> <span class="keyword">const</span>* tableName, <span class="keywordtype">char</span> <span class="keyword">const</span>* fieldName, <span class="keywordtype">int</span> newFlags);
00310 
00311     cli_error_handler set_error_handler(<span class="keywordtype">int</span> session, cli_error_handler new_handler);
00312 
00313     <span class="keywordtype">int</span> attach(<span class="keywordtype">int</span> session);
00314     <span class="keywordtype">int</span> detach(<span class="keywordtype">int</span> session, <span class="keywordtype">int</span> detach_mode);
00315 
00316     <span class="keywordtype">int</span> get_database_state(<span class="keywordtype">int</span> session, cli_database_monitor* monitor);
00317 
00318     <span class="keywordtype">int</span> close(<span class="keywordtype">int</span> session);
00319 
00320     <span class="keywordtype">int</span> prepare_query(<span class="keywordtype">int</span> session, <span class="keywordtype">char</span> <span class="keyword">const</span>* query);
00321     <span class="keywordtype">int</span> execute_query(<span class="keywordtype">int</span> statement, <span class="keywordtype">int</span> for_update, <span class="keywordtype">void</span>* record_struct, va_list params);
00322     <span class="keywordtype">int</span> insert_struct(<span class="keywordtype">int</span> session, <span class="keywordtype">char</span> <span class="keyword">const</span>* table_name, <span class="keywordtype">void</span>* record_struct, cli_oid_t* oid);
00323 
00324     <span class="keyword">static</span> <span class="keywordtype">int</span> create_table(<a class="code" href="classdbDatabase.html">dbDatabase</a>* db, <span class="keywordtype">char</span> <span class="keyword">const</span>* tableName, <span class="keywordtype">int</span> nColumns, 
00325                             cli_field_descriptor* columns);
00326 
00327     <span class="keyword">static</span> <span class="keywordtype">int</span> alter_table(<a class="code" href="classdbDatabase.html">dbDatabase</a>* db, <span class="keywordtype">char</span> <span class="keyword">const</span>* tableName, <span class="keywordtype">int</span> nColumns, 
00328                             cli_field_descriptor* columns);
00329 
00330     <span class="keyword">static</span> <span class="keywordtype">int</span> alter_index(<a class="code" href="classdbDatabase.html">dbDatabase</a>* db, <span class="keywordtype">char</span> <span class="keyword">const</span>* tableName, <span class="keywordtype">char</span> <span class="keyword">const</span>* fieldName, <span class="keywordtype">int</span> newFlags);
00331 };
</pre></div><hr size="1"><address style="align: right;"><small>Generated on Thu Feb 12 13:04:48 2004 for FastDB by
<a href="http://www.doxygen.org/index.html">
<img src="doxygen.png" alt="doxygen" align="middle" border=0 > 
</a>1.3.5 </small></address>
</body>
</html>