Function RM_SelectDb

src/module.cpp:2293–2296

Change the currently selected DB. Returns an error if the id * is out of range. * * Note that the client will retain the currently selected DB even after * the Redis command implemented by the module calling this function * returns. * * If the module command wishes to change something in a different DB and * returns back to the original one, it should call RedisModule_GetSelectedDb() * be

 * returns back to the original one, it should call RedisModule_GetSelectedDb()
 * before in order to restore the old DB number before returning. */
int RM_SelectDb(RedisModuleCtx *ctx, int newid) {
    int retval = selectDb(ctx->client,newid);
    return (retval == C_OK) ? REDISMODULE_OK : REDISMODULE_ERR;
}

/* Initialize a RedisModuleKey struct */
static void moduleInitKey(RedisModuleKey *kp, RedisModuleCtx *ctx, robj *keyname, robj *value, int mode){