Telemetry upload bug if telemetry list is not ordered by timestamp or if elements of list have different number of key/value pairs

首先，通过 TBGatewayMqttClient.gw_send_telemetry 重现三个 telemetry 示例，并比较上传的结果。跟踪 telemetry 上传路径，以确定列表顺序和不同的值长度如何影响时间戳和条目；当每个值都能根据输入顺序或形状无关地与其对应的时间戳一起上传时，即表示完成。

I'm using tb-mqtt-client version 1.10.10

I have a use-case where I'm uploading a list of telemetry readings. Depending on the order of the list, sometimes not all telemetry is being uploaded and sometimes the timestamp with which it is being uploaded is incorrect...

I first though that the list needed to be sorted by the timestamp attribute but then I had cases where even if it was sorted by timestamp it would work fine. It seems to be a combination of the list not being sorted with each element of the list not having the same number of key/value pairs.

I can't figure out or understand this behavior so any help would be appreciated.

This is the code snippet I'm using for testing this problem:

from tb_device_mqtt import TBPublishInfo
from tb_gateway_mqtt import TBGatewayMqttClient

telemetry =[...]

client = TBGatewayMqttClient("my.url.com", port=1883, username="token")
client.connect()

result = client.gw_send_telemetry('test device', telemetry) 

success = result.get() == TBPublishInfo.TB_ERR_SUCCESS
client.disconnect()

print(success)

Following are some examples of the problem where the only thing I'm changing is the order of the telemetry list:

Example 1 - works fine

telemetry =[
    {
        'ts': 1736330010000,
        'values': {
            'test_1': 1,
            'test_1_1': 1,
        }
    },
    {
        'ts': 1736330030000,
        'values': {
            'test_3': 3,
            'test_3_1': 3,
        }
    },
    {
        'ts': 1736330020000,
        'values': {
            'test_2': 2,
            'test_2_1': 2
        }
    },
]

Example 2 - does not upload test_2 and test_2_1 telemetry

telemetry =[
    {
        'ts': 1736330010000,
        'values': {
            'test_1': 1,
            'test_1_1': 1
        }
    },
    {
        'ts': 1736330020000,
        'values': {
            'test_2': 2,
            'test_2_1': 2
        }
    },
    {
        'ts': 1736330030000,
        'values': {
            'test_3': 3
        }
    },
]

Example 3 - test_1 and test_1_1 are being uploaded with the wrong timestamp. They are being uploaded with the same timestamp as test_3

telemetry =[
    {
        'ts': 1736330010000,
        'values': {
            'test_1': 1,
            'test_1_1': 1,
        }
    },
    {
        'ts': 1736330030000,
        'values': {
            'test_3': 3,
        }
    },
    {
        'ts': 1736330020000,
        'values': {
            'test_2': 2,
            'test_2_1': 2
        }
    },
]