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http://github.com/valkey-io/valkey
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80 lines
3.3 KiB
C
80 lines
3.3 KiB
C
/* This module is used to test the server events hooks API.
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*
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* -----------------------------------------------------------------------------
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*
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* Copyright (c) 2019, Salvatore Sanfilippo <antirez at gmail dot com>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of Redis nor the names of its contributors may be used
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* to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#define REDISMODULE_EXPERIMENTAL_API
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#include "redismodule.h"
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/* Client state change callback. */
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void clientChangeCallback(RedisModuleCtx *ctx, RedisModuleEvent e, uint64_t sub, void *data)
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{
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REDISMODULE_NOT_USED(ctx);
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REDISMODULE_NOT_USED(e);
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RedisModuleClientInfo *ci = data;
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char *keyname = (sub == REDISMODULE_SUBEVENT_CLIENT_CHANGE_CONNECTED) ?
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"connected" : "disconnected";
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RedisModuleCallReply *reply;
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RedisModule_SelectDb(ctx,9);
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reply = RedisModule_Call(ctx,"RPUSH","cl",keyname,(long)ci->id);
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RedisModule_FreeCallReply(reply);
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}
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void flushdbCallback(RedisModuleCtx *ctx, RedisModuleEvent e, uint64_t sub, void *data)
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{
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REDISMODULE_NOT_USED(ctx);
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REDISMODULE_NOT_USED(e);
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RedisModuleFlushInfo *fi = data;
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char *keyname = (sub == REDISMODULE_SUBEVENT_FLUSHDB_START) ?
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"flush-start" : "flush-end";
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RedisModuleCallReply *reply;
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RedisModule_SelectDb(ctx,9);
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reply = RedisModule_Call(ctx,"RPUSH","cl",keyname,(long)fi->dbnum);
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RedisModule_FreeCallReply(reply);
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}
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/* This function must be present on each Redis module. It is used in order to
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* register the commands into the Redis server. */
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int RedisModule_OnLoad(RedisModuleCtx *ctx, RedisModuleString **argv, int argc) {
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REDISMODULE_NOT_USED(argv);
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REDISMODULE_NOT_USED(argc);
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if (RedisModule_Init(ctx,"testhook",1,REDISMODULE_APIVER_1)
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== REDISMODULE_ERR) return REDISMODULE_ERR;
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RedisModule_SubscribeToServerEvent(ctx,
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RedisModuleEvent_ClientChange, clientChangeCallback);
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RedisModule_SubscribeToServerEvent(ctx,
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RedisModuleEvent_FlushDB, flushdbCallback);
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return REDISMODULE_OK;
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}
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