static SQLRETURN
MNDBAllocDesc(ODBCDbc *dbc, SQLHANDLE *OutputHandlePtr)
{
if (!dbc->Connected) {
/* Connection does not exist */
addDbcError(dbc, "08003", NULL, 0);
return SQL_ERROR;
}
if (OutputHandlePtr == NULL) {
/* Invalid use of null pointer */
addDbcError(dbc, "HY009", NULL, 0);
return SQL_ERROR;
}
*OutputHandlePtr = (SQLHANDLE *) newODBCDesc(dbc);
#ifdef ODBCDEBUG
ODBCLOG("new desc %p\n", *OutputHandlePtr);
#endif
return *OutputHandlePtr == NULL ? SQL_ERROR : SQL_SUCCESS;
}
/*
* Creates a new allocated ODBCStmt object and initializes it.
*
* Precondition: none
* Postcondition: returns a new ODBCStmt object
*/
ODBCStmt *
newODBCStmt(ODBCDbc *dbc)
{
ODBCStmt *stmt = (ODBCStmt *) malloc(sizeof(ODBCStmt));
assert(stmt);
assert(dbc);
assert(dbc->mid);
if (stmt == NULL) {
/* Memory allocation error */
addDbcError(dbc, "HY001", NULL, 0);
return NULL;
}
stmt->Dbc = dbc;
stmt->Error = NULL;
stmt->RetrievedErrors = 0;
stmt->State = INITED;
stmt->hdl = mapi_new_handle(dbc->mid);
if (stmt->hdl == NULL) {
/* Memory allocation error */
addDbcError(dbc, "HY001", NULL, 0);
free(stmt);
return NULL;
}
assert(stmt->hdl);
stmt->currentRow = 0;
stmt->startRow = 0;
stmt->rowSetSize = 0;
stmt->queryid = -1;
stmt->nparams = 0;
stmt->querytype = -1;
stmt->rowcount = 0;
/* add this stmt to the administrative linked stmt list */
stmt->next = dbc->FirstStmt;
dbc->FirstStmt = stmt;
stmt->cursorType = SQL_CURSOR_FORWARD_ONLY;
stmt->cursorScrollable = SQL_NONSCROLLABLE;
stmt->retrieveData = SQL_RD_ON;
stmt->noScan = SQL_NOSCAN_OFF;
stmt->ApplRowDescr = newODBCDesc(dbc);
stmt->ApplParamDescr = newODBCDesc(dbc);
stmt->ImplRowDescr = newODBCDesc(dbc);
stmt->ImplParamDescr = newODBCDesc(dbc);
stmt->AutoApplRowDescr = stmt->ApplRowDescr;
stmt->AutoApplParamDescr = stmt->ApplParamDescr;
if (stmt->ApplRowDescr == NULL || stmt->ApplParamDescr == NULL ||
stmt->ImplRowDescr == NULL || stmt->ImplParamDescr == NULL) {
destroyODBCStmt(stmt);
return NULL;
}
stmt->ApplRowDescr->sql_desc_alloc_type = SQL_DESC_ALLOC_AUTO;
stmt->ApplParamDescr->sql_desc_alloc_type = SQL_DESC_ALLOC_AUTO;
stmt->ImplRowDescr->sql_desc_alloc_type = SQL_DESC_ALLOC_AUTO;
stmt->ImplParamDescr->sql_desc_alloc_type = SQL_DESC_ALLOC_AUTO;
stmt->ImplRowDescr->Stmt = stmt;
stmt->ImplParamDescr->Stmt = stmt;
stmt->Type = ODBC_STMT_MAGIC_NR; /* set it valid */
return stmt;
}
