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Queue feature, compile error - Dynimical Library issue. #1018

Darma opened this issue Jun 7, 2016 · 4 comments · Fixed by #1019


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commented Jun 7, 2016


I am working around to use Queue-ing feature of the Photon Firmware, from both latest and development branch.

For example:

os_queue_t my_queue; 
os_queue_create( &my_queue, 10, 10);

when compile I get following error message:

.. undefined reference to `os_queue_create'`

It seems like the source code is already in the relevant files:


But it looks like it's not implemented (linked) in the dynamical library hal_dynalib_concurrent.h file. At least current development branch.



  • How can or do I use Queue (os_queue*) functions?


  • Minimum test case added
  • Device, system and user firmware versions stated
  • Particle confirmed

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commented Jun 7, 2016

Thanks for bringing this up! At present the queues are intended only for use by the system, since it's quite a low-level interface. I can add that low-level interface to the dynalib for the 0.6.0 release, and then we'll add a high-level wiring Queue interface for 0.7.0

@m-mcgowan m-mcgowan referenced this issue Jun 7, 2016
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commented Jun 7, 2016

Please see the PR above - you can pull that into your local working copy. Then recompile system-part2 and flash that to your device, then recompile the app and the low-level queue interface will be available.

@m-mcgowan m-mcgowan added this to the 0.6.x milestone Jun 10, 2016


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commented Jun 20, 2016

Hey thanks @m-mcgowan , when will 0.6.x released? Any time estimation?


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commented Jul 16, 2018

Please update document If you guys do not want to export Free RT-OS API.
My suggestion is follow GUN style not stupid Aduino.

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