d0a9571da0
It is now possible to specify what information the caller is interested in. With this the cost for collecting information during the query parsing that nobody is interested in can be avoided.
164 lines
3.6 KiB
C++
164 lines
3.6 KiB
C++
/*
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* Copyright (c) 2016 MariaDB Corporation Ab
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*
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* Use of this software is governed by the Business Source License included
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* in the LICENSE.TXT file and at www.mariadb.com/bsl11.
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*
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* Change Date: 2019-07-01
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*
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* On the date above, in accordance with the Business Source License, use
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* of this software will be governed by version 2 or later of the General
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* Public License.
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*/
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#define MXS_MODULE_NAME "qc_sqlite"
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#include <maxscale/query_classifier.h>
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#include "../../server/core/maxscale/config.h"
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int32_t qc_dummy_parse(GWBUF* querybuf, uint32_t collect, int32_t* pResult)
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{
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*pResult = QC_QUERY_INVALID;
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return QC_RESULT_OK;
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}
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int32_t qc_dummy_get_type_mask(GWBUF* querybuf, uint32_t* pType_mask)
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{
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*pType_mask = QUERY_TYPE_UNKNOWN;
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return QC_RESULT_OK;
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}
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int32_t qc_dummy_get_table_names(GWBUF* querybuf, int32_t fullnames, char*** ppzNames, int32_t* pSize)
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{
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*ppzNames = NULL;
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*pSize = 0;
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return QC_RESULT_OK;
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}
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int32_t qc_dummy_get_created_table_name(GWBUF* querybuf, char** pzName)
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{
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*pzName = NULL;
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return QC_RESULT_OK;
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}
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int32_t qc_dummy_is_drop_table_query(GWBUF* querybuf, int32_t* pIs_drop_table)
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{
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*pIs_drop_table = 0;
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return QC_RESULT_OK;
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}
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int32_t qc_dummy_query_has_clause(GWBUF* buf, int32_t *pHas_clause)
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{
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*pHas_clause = 0;
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return QC_RESULT_OK;
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}
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int32_t qc_dummy_get_database_names(GWBUF* querybuf, char*** ppzNames, int32_t* pSize)
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{
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*ppzNames = NULL;
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*pSize = 0;
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return QC_RESULT_OK;
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}
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int32_t qc_dummy_get_operation(GWBUF* querybuf, int32_t* pOp)
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{
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*pOp = QUERY_OP_UNDEFINED;
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return QC_RESULT_OK;
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}
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int32_t qc_dummy_get_prepare_name(GWBUF* query, char** pzName)
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{
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*pzName = NULL;
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return QC_RESULT_OK;
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}
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int32_t qc_dummy_get_field_info(GWBUF* query, const QC_FIELD_INFO** ppInfos, uint32_t* nInfos)
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{
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*ppInfos = NULL;
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*nInfos = 0;
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return QC_RESULT_OK;
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}
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int32_t qc_dummy_get_function_info(GWBUF* query, const QC_FUNCTION_INFO** ppInfos, uint32_t* nInfos)
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{
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*ppInfos = NULL;
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*nInfos = 0;
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return QC_RESULT_OK;
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}
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int32_t qc_dummy_setup(const char* args)
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{
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return QC_RESULT_OK;
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}
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int32_t qc_dummy_process_init(void)
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{
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return QC_RESULT_OK;
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}
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void qc_dummy_process_end(void)
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{
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}
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int32_t qc_dummy_thread_init(void)
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{
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return QC_RESULT_OK;
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}
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void qc_dummy_thread_end(void)
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{
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}
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int32_t qc_dummy_get_preparable_stmt(GWBUF* stmt, GWBUF** preparable_stmt)
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{
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*preparable_stmt = NULL;
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return QC_RESULT_OK;
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}
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extern "C"
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{
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MXS_MODULE* MXS_CREATE_MODULE()
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{
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static QUERY_CLASSIFIER qc =
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{
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qc_dummy_setup,
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qc_dummy_process_init,
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qc_dummy_process_end,
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qc_dummy_thread_init,
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qc_dummy_thread_end,
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qc_dummy_parse,
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qc_dummy_get_type_mask,
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qc_dummy_get_operation,
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qc_dummy_get_created_table_name,
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qc_dummy_is_drop_table_query,
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qc_dummy_get_table_names,
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NULL,
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qc_dummy_query_has_clause,
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qc_dummy_get_database_names,
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qc_dummy_get_prepare_name,
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qc_dummy_get_field_info,
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qc_dummy_get_function_info,
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qc_dummy_get_preparable_stmt,
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};
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static MXS_MODULE info =
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{
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MXS_MODULE_API_QUERY_CLASSIFIER,
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MXS_MODULE_IN_DEVELOPMENT,
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QUERY_CLASSIFIER_VERSION,
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"Dummy Query Classifier",
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"V1.0.0",
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&qc,
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qc_dummy_process_init,
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qc_dummy_process_end,
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qc_dummy_thread_init,
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qc_dummy_thread_end,
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{
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{MXS_END_MODULE_PARAMS}
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}
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};
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return &info;
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}
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}
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