6bcb3ce4dc
- Since the capabilities are a bitmask, it is better if an unsigned integral type is used. - Since the function is part of an ABI, it is better if an explicit size is used. - 64-bits so that there also is room for independent filter capabilities.
182 lines
4.0 KiB
C
182 lines
4.0 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/bsl.
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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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#include <stdio.h>
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#include <maxscale/alloc.h>
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#include <maxscale/router.h>
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#include <maxscale/modinfo.h>
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static char *version_str = "V1.0.0";
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MODULE_INFO info =
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{
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MODULE_API_ROUTER,
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MODULE_IN_DEVELOPMENT,
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ROUTER_VERSION,
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"A test router - not for use in real systems"
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};
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static ROUTER *createInstance(SERVICE *service, char **options);
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static void *newSession(ROUTER *instance, SESSION *session);
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static void closeSession(ROUTER *instance, void *session);
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static void freeSession(ROUTER *instance, void *session);
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static int routeQuery(ROUTER *instance, void *session, GWBUF *queue);
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static void clientReply(ROUTER *instance, void *session, GWBUF *queue, DCB*);
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static void diagnostic(ROUTER *instance, DCB *dcb);
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static uint64_t getCapabilities ();
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static void handleError(ROUTER *instance,
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void *router_session,
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GWBUF *errbuf,
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DCB *backend_dcb,
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error_action_t action,
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bool *succp);
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static ROUTER_OBJECT MyObject =
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{
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createInstance,
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newSession,
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closeSession,
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freeSession,
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routeQuery,
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diagnostic,
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clientReply,
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handleError,
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getCapabilities
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};
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typedef struct
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{
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} TESTROUTER;
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typedef struct
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{
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} TESTSESSION;
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/**
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* Implementation of the mandatory version entry point
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*
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* @return version string of the module
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*/
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char *
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version()
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{
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return version_str;
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}
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/**
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* The module initialisation routine, called when the module
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* is first loaded.
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*/
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void
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ModuleInit()
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{
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}
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/**
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* The module entry point routine. It is this routine that
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* must populate the structure that is referred to as the
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* "module object", this is a structure with the set of
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* external entry points for this module.
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*
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* @return The module object
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*/
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ROUTER_OBJECT *
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GetModuleObject()
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{
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return &MyObject;
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}
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/**
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* Create an instance of the router for a particular service
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* within the gateway.
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*
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* @param service The service this router is being create for
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* @param options The options for this query router
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*
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* @return The instance data for this new instance
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*/
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static ROUTER *
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createInstance(SERVICE *service, char **options)
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{
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return (ROUTER*)MXS_MALLOC(sizeof(TESTROUTER));
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}
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/**
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* Associate a new session with this instance of the router.
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*
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* @param instance The router instance data
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* @param session The session itself
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* @return Session specific data for this session
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*/
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static void *
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newSession(ROUTER *instance, SESSION *session)
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{
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return (SESSION*)MXS_MALLOC(sizeof(TESTSESSION));
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}
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/**
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* Close a session with the router, this is the mechanism
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* by which a router may cleanup data structure etc.
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*
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* @param instance The router instance data
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* @param session The session being closed
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*/
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static void
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closeSession(ROUTER *instance, void *session)
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{
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}
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static void freeSession(
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ROUTER* router_instance,
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void* router_client_session)
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{
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MXS_FREE(router_client_session);
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}
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static int
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routeQuery(ROUTER *instance, void *session, GWBUF *queue)
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{
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return 0;
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}
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void clientReply(ROUTER* instance, void* session, GWBUF* queue, DCB* dcb)
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{
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}
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/**
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* Diagnostics routine
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*
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* @param instance The router instance
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* @param dcb The DCB for diagnostic output
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*/
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static void
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diagnostic(ROUTER *instance, DCB *dcb)
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{
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}
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static uint64_t getCapabilities()
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{
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return 0;
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}
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static void handleError(
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ROUTER *instance,
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void *router_session,
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GWBUF *errbuf,
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DCB *backend_dcb,
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error_action_t action,
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bool *succp)
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{
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}
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