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Problem with subscribe blocks using mqtt [message #1766137]

Fri, 16 June 2017 10:46

swetalin priyadarshini

Messages: 5
Registered: June 2017

Junior Member

Hi
The following application using a subscribe block throws an error. After uploading the application forte force closes.interestingly the application using just publish block works well . The application using pub block and using both pub and sub blocks are also attached.

Attachment: issue1.jpg
(Size: 29.32KB, Downloaded 124 times)
Attachment: issue_2.jpg
(Size: 45.32KB, Downloaded 135 times)
Attachment: only pub_block.jpg
(Size: 30.26KB, Downloaded 108 times)

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Re: Problem with subscribe blocks using mqtt [message #1766224 is a reply to message #1766137]

Sun, 18 June 2017 16:00

Martin Melik Merkumians

Messages: 117
Registered: March 2016

Senior Member

Could you please provide more details? Is FORTE crashing or does it provide an error message? Can you check the status of the subscribe block?

Without these information it is very hard to help

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Re: Problem with subscribe blocks using mqtt [message #1766233 is a reply to message #1766224]

Mon, 19 June 2017 05:03

swetalin priyadarshini

Messages: 5
Registered: June 2017

Junior Member

FORTE is crashing and therefore on monitoring it shows N/A.

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Re: Problem with subscribe blocks using mqtt [message #1766238 is a reply to message #1766233]

Mon, 19 June 2017 07:30

Jose Maria Jesus Cabral Lassalle

Messages: 199
Registered: February 2016

Senior Member

HI,

I tried the last version on a windows and on a BeagleBoneBlack and it's working. Which version did you use to compile your forte with MQTT?. I tried with the commit 2aec35151071513528fe8b8471e5f5f7e36fc23a "Fix mqtt destroy bug and delete unistd.h from commlayer" pushed on the 1st of June. When you setup your CMAKE, do you get any error or warning? Make sure you specify FORTE_COM_PAHOMQTT_INCLUDE_DIR and FORTE_COM_PAHOMQTT_LIB_DIR where you should find the MQTT headers and library respectively.

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Re: Problem with subscribe blocks using mqtt [message #1766299 is a reply to message #1766238]

Tue, 20 June 2017 06:19

swetalin priyadarshini

Messages: 5
Registered: June 2017

Junior Member

Thank you for your reply.
The compilation gave no errors.But now the application works. Cross-compiling paho.mqtt.c could be the reason for the initial bug. When the library was compiled on pi, it worked.

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