fa2189373d
skygw_utils.cc: removed replace_str and implemented replace_literal which replaces user-provided literals in query with predefined string "?". Replacing is done one by one, so it is suboptimal ipmlementation since all literals could be passed to replacement function in one call and processed all before returning.
71 lines
2.6 KiB
C
71 lines
2.6 KiB
C
/*
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This file is distributed as part of the SkySQL Gateway. It is free
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software: you can redistribute it and/or modify it under the terms of the
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GNU General Public License as published by the Free Software Foundation,
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version 2.
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This program is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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details.
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You should have received a copy of the GNU General Public License along with
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this program; if not, write to the Free Software Foundation, Inc., 51
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Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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Copyright SkySQL Ab
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*/
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/** getpid */
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#include <unistd.h>
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#include <mysql.h>
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#include <skygw_utils.h>
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#include <buffer.h>
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EXTERN_C_BLOCK_BEGIN
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/**
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* Query type for skygateway.
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* The meaninful difference is where operation is done and whether master data
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* is modified
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*/
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typedef enum {
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QUERY_TYPE_UNKNOWN = 0x0000, /*< Initial value, can't be tested bitwisely */
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QUERY_TYPE_LOCAL_READ = 0x0001, /*< Read non-database data, execute in MaxScale */
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QUERY_TYPE_READ = 0x0002, /*< No updates */
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QUERY_TYPE_WRITE = 0x0004, /*< Master data will be modified */
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QUERY_TYPE_SESSION_WRITE = 0x0008, /*< Session data will be modified */
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QUERY_TYPE_GLOBAL_WRITE = 0x0010, /*< Global system variable modification */
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QUERY_TYPE_BEGIN_TRX = 0x0020, /*< BEGIN or START TRANSACTION */
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QUERY_TYPE_ENABLE_AUTOCOMMIT = 0x0040, /*< SET autocommit=1 */
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QUERY_TYPE_DISABLE_AUTOCOMMIT = 0x0080, /*< SET autocommit=0 */
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QUERY_TYPE_ROLLBACK = 0x0100, /*< ROLLBACK */
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QUERY_TYPE_COMMIT = 0x0200, /*< COMMIT */
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QUERY_TYPE_PREPARE_NAMED_STMT = 0x0400, /*< Prepared stmt with name from user */
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QUERY_TYPE_PREPARE_STMT = 0x0800, /*< Prepared stmt with id provided by server */
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QUERY_TYPE_EXEC_STMT = 0x1000 /*< Execute prepared statement */
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} skygw_query_type_t;
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#define QUERY_IS_TYPE(mask,type) ((mask & type) == type)
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/**
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* Create THD and use it for creating parse tree. Examine parse tree and
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* classify the query.
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*/
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skygw_query_type_t query_classifier_get_type(GWBUF* querybuf);
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/** Free THD context and close MYSQL */
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char* skygw_query_classifier_get_stmtname(MYSQL* mysql);
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char* skygw_get_canonical(GWBUF* querybuf);
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bool parse_query (GWBUF* querybuf);
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parsing_info_t* parsing_info_init(void (*donefun)(void *));
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void parsing_info_done(void* ptr);
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bool query_is_parsed(GWBUF* buf);
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EXTERN_C_BLOCK_END
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