dba_config.cpp
上传用户:romrleung
上传日期:2022-05-23
资源大小:18897k
文件大小:3k
- /* Copyright (C) 2003 MySQL AB
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
- #include "dba_internal.hpp"
- int DBA__NBP_Intervall = 10;
- int DBA__BulkReadCount = 1000;
- int DBA__StartTransactionTimout = 0;
- int DBA__NBP_Force = 1;
- struct DBA__Config {
- int ParamId;
- int * Param;
- int min;
- int max;
- const char * Description;
- };
- static
- DBA__Config Parameters[] = {
- { 0, &DBA__NBP_Intervall, 4, INT_MAX,
- "Newton Batch Process Interval(ms)" },
- { 1, &DBA__BulkReadCount, 1, 5000,
- "Operations per transaction during bulkread" },
- { 2, &DBA__StartTransactionTimout, 0, INT_MAX,
- "Start transaction timeout(ms)" },
- { 3, &DBA__NBP_Force, 0, 2,
- "Newton Batch Process Force send algorithm" }
- };
- static const int Params = sizeof(Parameters)/sizeof(DBA__Config);
- static
- DBA__Config *
- getParam(int id){
- for(int i = 0; i<Params; i++)
- if(Parameters[i].ParamId == id)
- return &Parameters[i];
- return 0;
- }
- extern "C"
- DBA_Error_t
- DBA_SetParameter(int ParameterId, int Value){
- if(Value == -1){
- DBA__SetLatestError(DBA_APPLICATION_ERROR, 0, "Node id is not modifyable");
- return DBA_APPLICATION_ERROR;
- }
- DBA__Config * p = getParam(ParameterId);
- if(p == 0){
- DBA__SetLatestError(DBA_APPLICATION_ERROR, 0, "Invalid parameter id: %d",
- ParameterId);
- return DBA_APPLICATION_ERROR;
- }
- if(Value < p->min){
- DBA__SetLatestError(DBA_APPLICATION_ERROR, 0,
- "Value too small for parameter %d (min = %d)",
- Value, p->min);
- return DBA_APPLICATION_ERROR;
- }
- if(Value > p->max){
- DBA__SetLatestError(DBA_APPLICATION_ERROR, 0,
- "Value too big for parameter %d (max = %d)",
- Value, p->max);
- return DBA_APPLICATION_ERROR;
- }
- * p->Param = Value;
- return DBA_NO_ERROR;
- }
-
- extern "C"
- DBA_Error_t
- DBA_GetParameter(int ParameterId, int * Value){
- if(ParameterId == -1){
- if(DBA__TheNdb == 0){
- DBA__SetLatestError(DBA_APPLICATION_ERROR, 0, "DBA_Open() is not called"
- );
- return DBA_APPLICATION_ERROR;
- }
- * Value = DBA__TheNdb->getNodeId();
- return DBA_NO_ERROR;
- }
- DBA__Config * p = getParam(ParameterId);
- if(p == 0){
- DBA__SetLatestError(DBA_APPLICATION_ERROR, 0, "Invalid parameter id: %d",
- ParameterId);
- return DBA_APPLICATION_ERROR;
- }
-
- * Value = * p->Param;
- return DBA_NO_ERROR;
- }