100% CPU usage issues

[mhkabir]

The driver causes nearly 100% CPU usage under some conditions:

• The camera is unplugged while the driver is running
• External triggering is used

Camera : PointGrey FireFly MV
OS : Ubuntu 14.04.02 LTS
ROS version : Indigo

[jack-oquin]

Thanks for the report. I will try to reproduce it.

[mhkabir]

I'm using trigger parameters :

• external_trigger = true
• trigger_polarity = ACTIVE_LOW

[mhkabir]

You should just be able to unplug the camera while the driver is running and monitor the system load in htop to easily reproduce.
Also another issue, the driver cannot be shutdown cleanly. Ctrl+C results in a lot of corrupted linked-list errors before it's eventually terminated. ( I will follow up on this later today, after updating to latest master)

[mhkabir]

@jack-oquin ping.

[mhkabir]

@jack-oquin This commit is causing it : d279c2d The camera is polled way excessively.

[jack-oquin]

Thanks for figuring that out.

I am still having trouble finding time for maintaining this package, but don't give up.