static int MqttSample_CmdPublish(struct MqttSampleContext *ctx)
{
int err = 0;
int64_t ts;
ts = (int64_t)time(NULL) * 1000;
err |= Mqtt_PackDataPointStart(ctx->mqttbuf, 1, MQTT_QOS_LEVEL2, 0, 1);
err |= Mqtt_AppendDPStartObject(ctx->mqttbuf, "test-1", ts);
err |= Mqtt_AppendDPSubvalueInt(ctx->mqttbuf, "subvalue", 23);
err |= Mqtt_AppendDPSubvalueDouble(ctx->mqttbuf, "sub2", 23.167);
err |= Mqtt_AppendDPSubvalueString(ctx->mqttbuf, "str3", "strvalue");
err |= Mqtt_AppendDPFinishObject(ctx->mqttbuf);
err |= Mqtt_PackDataPointFinish(ctx->mqttbuf);
if(err) {
printf("Failed to pack data point package.\n");
return -1;
}
return 0;
}
/**
* @brief 周期性发布数据，暂时没有使用，因为采用JSON发布，前端暂时不支持Json显示，但可以正常发布
* @param ctx:上下文变量
* @retval ret:0,成功，<0 失败
**/
static int MqttSample_CmdPublish(struct MqttSampleContext *ctx)
{
uint8_t cause = 0; //only for test
int err = 0;
int bytes = 0;
static unsigned char count = 0;
int64_t ts = 0; //no time
uint16_t temprature[1], rh[1];
printf("%s %d,count=%d,cause=%d\n", __func__, __LINE__, count, cause);
// ts = (int64_t)time(NULL) * 1000;
SHT2x_MeasureHM(SHT20_Measurement_RH_HM, temprature);
mDelay(1500);
SHT2x_MeasureHM(SHT20_Measurement_T_HM, rh);
err |= Mqtt_PackDataPointStart(ctx->mqttbuf, 1, MQTT_QOS_LEVEL2, 0, 1);
if((count == 0) || (cause == EVENT))
{
err |= Mqtt_AppendDPStartObject(ctx->mqttbuf, DS_TO_PUBLISH, ts);
if(cause == TIME_OUT)
{
ir_state = !ir_state;
}
if(ir_state == 0x1)
{
err |= Mqtt_AppendDPSubvalueString(ctx->mqttbuf, DS_TO_PUBLISH, "设备在位");
}
else if(ir_state == 0)
{
err |= Mqtt_AppendDPSubvalueString(ctx->mqttbuf, DS_TO_PUBLISH, "设备离位");
}
else
{
err |= Mqtt_AppendDPSubvalueString(ctx->mqttbuf, DS_TO_PUBLISH, "未知初始状态");
}
if(count != 2)
{
count++;
}
}
else if(count == 1)
{
err |= Mqtt_AppendDPStartObject(ctx->mqttbuf, DS_TO_PUBLISH_T, ts);
err |= Mqtt_AppendDPSubvalueInt(ctx->mqttbuf, DS_TO_PUBLISH_T, temprature[0]);
count++;
}
else if(count == 2)
{
err |= Mqtt_AppendDPStartObject(ctx->mqttbuf, DS_TO_PUBLISH_RH, ts);
err |= Mqtt_AppendDPSubvalueInt(ctx->mqttbuf, DS_TO_PUBLISH_RH, rh[0]);
count = 0;
}
err |= Mqtt_AppendDPFinishObject(ctx->mqttbuf);
err |= Mqtt_PackDataPointFinish(ctx->mqttbuf);
if(err)
{
printf("Failed to pack data point package.err=%d\n", err);
return -1;
}
bytes = Mqtt_SendPkt(ctx->mqttctx, ctx->mqttbuf, 0);
MqttBuffer_Reset(ctx->mqttbuf);
return 0;
}