diff --git a/src/modules/hellotimer.c b/src/modules/hellotimer.c new file mode 100644 index 00000000..9be4e1e4 --- /dev/null +++ b/src/modules/hellotimer.c @@ -0,0 +1,76 @@ +/* Helloworld cluster -- A ping/pong cluster API example. + * + * ----------------------------------------------------------------------------- + * + * Copyright (c) 2018, Salvatore Sanfilippo + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * * Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of Redis nor the names of its contributors may be used + * to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#include "../redismodule.h" +#include +#include +#include +#include + +#define MSGTYPE_PING 1 +#define MSGTYPE_PONG 2 + +/* Timer callback. */ +void timerHandler(RedisModuleCtx *ctx, void *data) { + printf("Fired %s!\n", data); + RedisModule_Free(data); +} + +/* HELLOTIMER.TIMER*/ +int TimerCommand_RedisCommand(RedisModuleCtx *ctx, RedisModuleString **argv, int argc) { + REDISMODULE_NOT_USED(argv); + REDISMODULE_NOT_USED(argc); + + for (int j = 0; j < 10; j++) { + int delay = rand() % 5000; + char *buf = RedisModule_Alloc(256); + snprintf(buf,256,"After %d", delay); + RedisModuleTimerID tid = RedisModule_CreateTimer(ctx,delay,timerHandler,buf); + } + return RedisModule_ReplyWithSimpleString(ctx, "OK"); +} + +/* This function must be present on each Redis module. It is used in order to + * register the commands into the Redis server. */ +int RedisModule_OnLoad(RedisModuleCtx *ctx, RedisModuleString **argv, int argc) { + REDISMODULE_NOT_USED(argv); + REDISMODULE_NOT_USED(argc); + + if (RedisModule_Init(ctx,"hellotimer",1,REDISMODULE_APIVER_1) + == REDISMODULE_ERR) return REDISMODULE_ERR; + + if (RedisModule_CreateCommand(ctx,"hellotimer.timer", + TimerCommand_RedisCommand,"readonly",0,0,0) == REDISMODULE_ERR) + return REDISMODULE_ERR; + + return REDISMODULE_OK; +}