NPE in Canvas

[agrignard]

This happen after few hours of running

[vaap1997]

I am running it, lets see at what time this appears and why.

[vaap1997]

@agrignard I had run the script for about 6 hours and it didn´t crush. On monday, I will check it on a computer with a higher procesador like the last time. I will play with the frameRatio to reduce the CPU usage, mine didn´t crush but I could listen the computer fan working hard and the computer usage was oscillating from 150-250%.

[agrignard]

Ok I have a good news the script finally runs for more than few hours. At least it last for one night. let's see how long it goes. What I did in the last commit is that I sent the information to UDP only if the grid is different. Before the information was always sent which I guess gave a problem in term of memory.

Let's see and let's cross the finger

[agrignard]

@vaap1997 were you abel to reproduce this bug? It always happen after a while on my machine.

It would be great to track this one, so we can have a working scanning (now the scanning need to be restarted evry couple of hours which make it impossible to use for real deployment)

[agrignard]

This one is still happening in the master I will investigate if it disappears in the dev branch

[agrignard]

Ok so bad news this is also happening in the dev branch (roughly after something like 6 hours of running)...

[agrignard]

@JesusGarcia98 any chance to fix this issue?

[JesusGarcia98]

Sorry for taking so long to reply, for some reason I did not receive the notification of your message. Have you tried hiding the windows that are not being used? (I added a method to BlockReader, PatternView and ColorRange to toggle their visibility) I know that helps reducing the use of resources, so it might help.

Still, I will try to find other possible solutions.

[JesusGarcia98]

I added a minor thing and the program has been running normally for more than 10 hours now.

EDIT: Now it has been running for a full day (24 hours) without problems. I should mention that I hid the ColorRange window since I was not using it.

[agrignard]

i am trying to test it.

right now I have this error when i launch it

'''''
java.lang.NullPointerException
at processing.opengl.Texture.copyBufferFromSource(Texture.java:827)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at processing.video.Capture.read(Unknown Source)
at LegoReader.captureEvent(LegoReader.java:219)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at processing.video.Capture.fireCaptureEvent(Unknown Source)
at processing.video.Capture.invokeEvent(Unknown Source)
at processing.video.Capture$2.bufferFrame(Unknown Source)
at org.gstreamer.elements.BufferDataAppSink$AppSinkNewBufferListener.newBuffer(BufferDataAppSink.java:163)
''''''