Re: [paho-dev] Embedded MQTT C Client

[Guy Dillen <guy.dillen@xxxxxxxxx>]

Hi All,

I just started trying to port the MQTTClient to Spark Core. As you
mentioned in previous post I should try with the Arduino embedded C++
library.
So I suppose I need to import the header files under
../MQTTClient/src/arduino Countdown.h, and WifiPStack.h (not
EthernetStack.h since Spark Core hasn’t ethernet=LAN) on-board and all
source code under ../MQTTPacket/src/ except the ones (used by servers)
mentioned by Ian: QTTUnsubscribeServer.c, MQTTSubscribeServer.c and
MQTTConnectServer.c?

Probably a newbie-stupid question: under ../MQTTClient/src/arduino i only
see header (.h) files, there are no implementation (.cpp) files, I suppose
the .h files use the implementation/libraries provided by the Spark Core,
is that correct?

Thanks.
Guy 


On 23/09/14 15:31, "Guy Dillen" <guy.dillen@xxxxxxxxx> wrote:

>Al thanks. i¹ll give it a try.
>
>On 22/09/14 18:05, "Al Stockdill-Mander" <asm@xxxxxxxx> wrote:
>
>>The CC3200 code relies on the SimpleLink libraries provided by TI. I'm
>>not familiar with the Spark Core but it looks like it's designed to be
>>similar to the arduino in terms of IDE and libraries. It will almost
>>certainly be easier to port the arduino embedded C++ library. If you
>>look in the repo at the moment under arduino there is EthernetStack.h
>>and WifiIPStack.h, these provide the implementation specifics for the
>>Ethernet or WifiShield on an arduino.
>>Looking at the Spark site there seem to be most of the equivalent
>>functions (.connect() .available() .write()) under TCPClient, although
>>it doesn't seem to have a readBytes() so you'd have to use a loop to
>>read() a byte at a time into the buffer.
>>The current Countdown.h in the arduino directory should work as is as it
>>only uses millis() which also seems to be on the spark core.
>>
>>Al
>>
>>On 22/09/14 16:44, Guy Dillen wrote:
>>> Hi Al,
>>>
>>> Thanks.
>>> Besides the TI CC3200 I also would like porting/using the library with
>>>my Spark Core's (www.spark.io) based on that are based on the ARM cortex
>>>M3 microprocessor. I suppose, since I'm no expert C developer, can I use
>>>the same source code as for the CC3200? Any help/suggestions welcome.
>>>
>>> Thanks.
>>> Guy
>>>
>>> Sent from my iPad
>>>
>>>> On 22 Sep 2014, at 17:13, Al Stockdill-Mander <asm@xxxxxxxx> wrote:
>>>>
>>>> Guy,
>>>>
>>>> Copy the MQTTClient.c/h and MQTTCC3200.c/h files to wherever is
>>>>suitable for the app you're working on. You only need to import the
>>>>MQTTClient.h, but you have to edit MQTTClient.h to #include the
>>>>platform specific implementation it is to use. Currently there is only
>>>>the CC3200 code, so add a #import "MQTTCC3200.h" to the end of the
>>>>#includes in MQTTClient.h
>>>> I realise that there is a distinct lack of documentation/samples for
>>>>the C specific embedded client, I'll try and get something up asap. In
>>>>the mean time please ask any other questions here and I'll do what I
>>>>can to help.
>>>>
>>>> Al
>>>>
>>>>> On 22/09/14 14:56, Guy Dillen wrote:
>>>>> Hi,
>>>>>
>>>>> I mentioned the embedded C implementation has a specific C (and even
>>>>> more specific) CC3200 implementation.
>>>>> I¹m confused as what sources to use; in the example form Benjamin
>>>>>Cabé
>>>>> all source code under MQTTPacket was imported in the CC3200
>>>>> microcontroller project. Should I still import these sources or only
>>>>>the
>>>>> sources under
>>>>> org.eclipse.paho.mqtt.embedded-c-master -> MQTTClient-C -> cc3200 ->
>>>>> MQTTCC3200.c and MQTTCC3200.h?
>>>>>
>>>>> Thanks.
>>>>> Guy
>>>>>
>>>>>
>>>>>
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