Dynamic load timeout

[brefra]

Based on log supplied at #76

• Make the discovery timeout dynamically based on the number of modules. So a small setup has has short time out and a large setup with many modules takes long timeout.
• Added an extra 1 second delay between every module load to allow some time to processing.
• Add second try to load modules by requesting channel names again if it failed the first time.

PR still draft, as I'm currently still testing the code changes

[hound]

line too long (81 > 79 characters)

[thomasdelaet]

Thank you! I will try to take a look this weekend and get it in.

[thomasdelaet]

Hey @brefra

Thanks for doing this! I was wondering if you have looked at using the existing async_scan method. This has no timeout associated and will get you module as they are discovered. I've adapted the scan.py script in examples dir to demonstrate use.

[brefra]

I've seen the async_scan method. As the async_scan method only request to load the module once it will try to retrieve the module names only once too.
Unfortunately the log shows the discovery fails because the 3rd part of a channel name is not getting in. So the module won't finish the loading. The workaround in this PR is to submit new name request at the first timeout to the module to try retrieve the channel names again.