174a2c4518
git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@1628 b08c6af1-5177-4d33-ba66-4b1c6b8b522a
96 lines
2.6 KiB
C
96 lines
2.6 KiB
C
//* Initializes a new connection node for the MYDDAS list*/
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static MYDDAS_UTIL_CONNECTION
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myddas_util_initialize_connection(void *,void *,
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MYDDAS_UTIL_CONNECTION);
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/* Initializes a new predicate node for the MYDDAS list */
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static MYDDAS_UTIL_PREDICATE
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myddas_util_initialize_predicate(char *, int,char *,
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MYDDAS_UTIL_PREDICATE);
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MYDDAS_GLOBAL
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myddas_util_initialize_myddas(void){
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MYDDAS_GLOBAL global = NULL;
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global = (MYDDAS_GLOBAL) malloc (sizeof(struct myddas_global));
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global->myddas_top_connections = NULL;
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#ifdef MYDDAS_TOP_LEVEL
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global->myddas_top_level_connection = NULL;
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#endif
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#ifdef MYDDAS_STATS
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global->myddas_statistics = (MYDDAS_GLOBAL_STATS) malloc (sizeof(struct myddas_global_stats));
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MYDDAS_STATS_INITIALIZE_TIME_STRUCT(global->myddas_statistics->total_db_row,time_final);
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MYDDAS_STATS_INITIALIZE_TIME_STRUCT(global->myddas_statistics->total_translate,time_final);
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#endif
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return global;
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}
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/* Inserts the new node on the front of the list */
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static MYDDAS_UTIL_CONNECTION
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myddas_util_initialize_connection(void *conn,void *enviromment,
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MYDDAS_UTIL_CONNECTION next){
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MYDDAS_UTIL_CONNECTION new = malloc (sizeof(struct myddas_list_connection));
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if (new == NULL)
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{
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return NULL;
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}
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new->predicates=NULL;
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new->connection=conn;
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new->odbc_enviromment=enviromment;
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/* It saves n queries, doing at once n+1 queries */
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new->total_number_queries=0; //Default
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new->actual_number_queries=0;
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new->queries = NULL;
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/* List integrity */
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new->next=next;
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new->previous=NULL;
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/* If there's already at least one node
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on the list */
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if (next != NULL)
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next->previous=new;
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#ifdef MYDDAS_STATS
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new->totalNumberOfRows=0;
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MYDDAS_STATS_INITIALIZE_TIME_STRUCT(new->totalTimeofDBServer,time_final);
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MYDDAS_STATS_INITIALIZE_TIME_STRUCT(new->lastTimeofDBServer,time_final);
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MYDDAS_STATS_INITIALIZE_TIME_STRUCT(new->totalFromDBServer,time_final);
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MYDDAS_STATS_INITIALIZE_TIME_STRUCT(new->lastFromDBServer,time_final);
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new->lastBytesTransfered=0;
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new->totalBytesTransfered=0;
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new->total_querys_made=0;
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#endif
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return new;
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}
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static MYDDAS_UTIL_PREDICATE
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myddas_util_initialize_predicate(char *pred_name, int pred_arity,
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char *pred_module, MYDDAS_UTIL_PREDICATE next){
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MYDDAS_UTIL_PREDICATE new = malloc (sizeof(struct myddas_list_preds));
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if (new == NULL)
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{
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return NULL;
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}
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new->pred_name=pred_name;
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new->pred_arity=pred_arity;
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new->pred_module=pred_module;
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/* List integrity */
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new->next=next;
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new->previous=NULL;
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/* If there's already at least one node
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on the list */
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if (next != NULL)
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next->previous=new;
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return new;
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}
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