c0bc611f03
The check for a closed session should never be needed as the core correctly orders the calls to the module functions. The version numbering was also not used. Fixed the incrementation of the query counter so that it uses relaxed atomic operations.
65 lines
1.8 KiB
C
65 lines
1.8 KiB
C
/*
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* Copyright (c) 2018 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: 2022-01-01
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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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#pragma once
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/**
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* @file readconnection.h - The read connection balancing query module heder file
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*
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* @verbatim
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* Revision History
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*
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* Date Who Description
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* 14/06/13 Mark Riddoch Initial implementation
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* 27/06/14 Mark Riddoch Addition of server weight percentage
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*
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* @endverbatim
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*/
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#define MXS_MODULE_NAME "readconnroute"
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#include <maxscale/cdefs.h>
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#include <maxscale/dcb.h>
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#include <maxscale/service.h>
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#include <maxscale/router.h>
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/**
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* The client session structure used within this router.
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*/
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struct ROUTER_CLIENT_SES : MXS_ROUTER_SESSION
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{
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SERVER_REF* backend; /*< Backend used by the client session */
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DCB* backend_dcb;/*< DCB Connection to the backend */
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DCB* client_dcb; /**< Client DCB */
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uint32_t bitmask; /*< Bitmask to apply to server->status */
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uint32_t bitvalue; /*< Session specific required value of server->status */
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};
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/**
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* The statistics for this router instance
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*/
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struct ROUTER_STATS
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{
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int n_sessions; /*< Number sessions created */
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int n_queries; /*< Number of queries forwarded */
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};
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/**
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* The per instance data for the router.
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*/
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struct ROUTER_INSTANCE : public MXS_ROUTER
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{
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SERVICE* service; /*< Pointer to the service using this router */
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uint64_t bitmask_and_bitvalue; /*< Lower 32-bits for bitmask and upper for bitvalue */
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ROUTER_STATS stats; /*< Statistics for this router */
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};
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