Switch from fork to start_soon

[toddstrader]

Closes #61 I've s/fork/start_soon which resolves my particular problem, but I have no idea if this is generically correct. Also, I don't know how far back start_soon goes in cocotb, so clearly this would break some people until they also update cocotb.

[toddstrader]

CI is mad because it's trying to use Python 3.6. I could update:

cocotb-bus/.github/workflows/tests.yml

Line 30 in 3c93452

python-version: 3.6

but I'm going to take a beat to see if I'm pulling on a thread that requires more thought than I'm putting into it.

Also, I'm guessing this should be updated to whatever the correct supported versions of cocotb would be:

cocotb-bus/setup.py

Line 33 in 2c846dc

"cocotb>=1.5.0.dev,<2.0"

But I'm also not sure what to put there.

[marlonjames]

But I'm also not sure what to put there.

cocotb is now 2.0.0.dev0, so:
cocotb>=2.0.0.dev

[marlonjames]

For the attrs deprecation warnings on 3.6, we use this in the main cocotb repo:

https://github.com/cocotb/cocotb/blob/20266934f8fc3a15ea9b459981e3534704c28b0e/tests/Makefile#L28-L31

[toddstrader]

But I'm also not sure what to put there.

cocotb is now 2.0.0.dev0, so: cocotb>=2.0.0.dev

Yeah, I was more uncertain about the starting point. Looks like start_soon() was added here:

commit ac465b968a241136dbd0cdc4509331ef49a61ea1
Author: Marlon James <marlon.james@garmin.com>
Date:   Sun Aug 15 13:54:57 2021 -0700

    Add start and start_soon scheduling functions (#2660)

So we can probably start at 1.6.0:
https://github.com/cocotb/cocotb/releases/tag/v1.6.0

[toddstrader]

For the attrs deprecation warnings on 3.6, we use this in the main cocotb repo:

https://github.com/cocotb/cocotb/blob/20266934f8fc3a15ea9b459981e3534704c28b0e/tests/Makefile#L28-L31

Thanks, I can try this. But should these tests just run on a newer version of Python instead? Maybe I'll try that first.

[jahagirdar]

@toddstrader ,
Can you also add fix for

cocotb-bus/src/cocotb_bus/drivers/__init__.py

Line 92 in 2c846dc

self._thread = cocotb.scheduler.add(self._send_thread())

in this PR.

[jahagirdar]

Additional patches
scheduler.txt

[cmarqu]

#75 (once merged) makes CI work again, but it doesn't pass because of the issues fixed by this PR.

@toddstrader Would you mind updating this PR (resolve conflicts and add the changes that @jahagirdar mentioned), or are you okay with me doing it?

[toddstrader]

#75 (once merged) makes CI work again, but it doesn't pass because of the issues fixed by this PR.

@toddstrader Would you mind updating this PR (resolve conflicts and add the changes that @jahagirdar mentioned), or are you okay with me doing it?

@cmarqu if you're willing please do. We abandoned ship on cocotb-bus since trying to keep cocotb and cocotb-bus coherent in this interstitial period between v1 and v2 is quite painful.

[Botnic]

Hi @cmarqu

What's the state of this PR?

[cmarqu]

What's the state of this PR?

Nothing new. I'll try to take a look at it soon.

[cmarqu]

Replaced by #78