Ejemplo n.º 1
0
static int MqttSample_CmdSubscribe(struct MqttSampleContext *ctx)
{
    int err;
    char topic[1024];
    sprintf(topic, "%s/%s/45523/test-1", ctx->proid, ctx->apikey);
    err = Mqtt_PackSubscribePkt(ctx->mqttbuf, 11, topic, MQTT_QOS_LEVEL1);
    if(err != MQTTERR_NOERROR) {
        printf("Critical bug: failed to pack the subscribe packet.\n");
        return -1;
    }

    sprintf(topic, "%s/%s/45523/test-2", ctx->proid, ctx->apikey);
    err = Mqtt_AppendSubscribeTopic(ctx->mqttbuf, topic, MQTT_QOS_LEVEL1);
    if (err != MQTTERR_NOERROR) {
        printf("Critical bug: failed to pack the subscribe packet.\n");
        return -1;
    }

    return 0;
}
Ejemplo n.º 2
0
/**
  * @brief 设备订阅报文,TOPIC是TOPIC_TO_SUB
  * @param  ctx:上下文变量
  * @retval ret:0,成功,<0 失败
  **/
static int MqttSample_CmdSubscribe(struct MqttSampleContext *ctx)
{
    int err;
    int bytes = 0;
    printf("%s %d\n", __func__, __LINE__);
    err = Mqtt_PackSubscribePkt(ctx->mqttbuf, 1, TOPIC_TO_SUB, MQTT_QOS_LEVEL1);
    if(err != MQTTERR_NOERROR)
    {
        printf("Critical bug: failed to pack the subscribe packet.\n");
        return -1;
    }

    printf("%s %d\n", __func__, __LINE__);
    /* err = Mqtt_AppendSubscribeTopic(ctx->mqttbuf, "433223/Bs04OCJioNgpmvjRphRak15j7Z8=/25267/test-2", MQTT_QOS_LEVEL2); */
    if(err != MQTTERR_NOERROR)
    {
        printf("Critical bug: failed to append the topic to the "
               "subscribe packet.\n");
        return -1;
    }
    bytes = Mqtt_SendPkt(ctx->mqttctx, ctx->mqttbuf, 0);
    MqttBuffer_Reset(ctx->mqttbuf);
    return 0;
}