Signed-off-by: Claudio Micheli <claudio@auterion.com>

Signed-off-by: Claudio Micheli <claudio@auterion.com>

Signed-off-by: Claudio Micheli <claudio@auterion.com>

Added COM_ONB_LOSS_T and COM_ONB_REG_T parameters to specify thresholds that triggers "onboard link lost" and "onboard link regained".


Signed-off-by: Claudio Micheli <claudio@auterion.com>

Signed-off-by: Claudio Micheli <claudio@auterion.com>

Major changes:
- Prevent  "HIGH LATENCY DATA LINK LOST" message to appear if iridium telemetry is not used.
- Prevent "DATA LINK LOSS" mavlink messages flooding when QGC is open and then closed.
- Changed "DATA LINK REGAINED" condition (use _datalink_last_heartbeat_gcs insthead of _datalink_lost)



Signed-off-by: Claudio Micheli <claudio@auterion.com>

when still close to ground

Migrate a few more var initializations from the Mavlink class constructor list to the respective declarations.

Whitespace formatting in mavlink_main.cpp/h and begin work of some variable initialization at declaration in mavlink_main.h.

Delete unnecessary #includes from mavlink_main.cpp and relocate a few #defines to mavlink_main.h for future variable initialization work.

The effect was that threads that tried to exit were unnecessarily kept
running.
This did not cause problems except for increased resource usage.

This solves a potential dead-lock when trying to shutdown: a call to exit()
stops all threads and calls all destructors for static objects.
The destructor of LockstepScheduler takes a lock. However this is not
safe, as the lock could already be taken (by any thread).

Add const specifier to remaining methods utilizing mavlink_message_t and similar message pointer types.

Cut case MAVLINK_MSG_ID_VISION_POSITION_ESTIMATE content and paste into handle_message_vision_position_estimate() method. Add const specifier to publish_odometry_topic() method.

- jMAVSim in PX4/Firmware (a97151fe): https://github.com/PX4/jMAVSim/commit/0c25b7c18990a64fc851cfd7fe3aac9a4060aea3
    - jMAVSim current upstream: https://github.com/PX4/jMAVSim/commit/8b2f4568e05935af57782fd0db9a434f733cc800
    - Changes: https://github.com/PX4/jMAVSim/compare/0c25b7c18990a64fc851cfd7fe3aac9a4060aea3...8b2f4568e05935af57782fd0db9a434f733cc800

    8b2f456 2019-02-28 Julian Oes - Merge pull request #95 from PX4/shell-style
3d0174a 2019-02-27 Matthias Grob - Fix shell script style

    -  mavlink v2.0 in PX4/Firmware (1a2b88ea30ae3bec38d2e9f11793042d7582506a): https://github.com/mavlink/c_library_v2/commit/f073569b746b6533c1715b0bbfed6c988444b257
    - mavlink v2.0 current upstream: https://github.com/mavlink/c_library_v2/commit/2a47f11e73eef6d817af7934692b1223d7fb434f
    - Changes: https://github.com/mavlink/c_library_v2/compare/f073569b746b6533c1715b0bbfed6c988444b257...2a47f11e73eef6d817af7934692b1223d7fb434f

    2a47f11 2019-03-01 PX4BuildBot - autogenerated headers for rev https://github.com/mavlink/mavlink/tree/747c3e73e9ad28e8011cdc5c98faf56752b1d32a