Temporary fix for 8.0.0-beta6: Blocking connection/socket when using Chrome

[michalpokusa]

Experimental change in HTTPServer.poll() that fixes blocked connection from Chrome on CircuitPython 8.0.0

Fixes #31

EDIT 1: This is a workaround fix that should be used only on 8.0.0-beta6. When 8.0.0-beta7 or 8.0.0 is released this PR should be closed.

[michalpokusa]

Unfortunately this does not work in CircuitPython 7.3.3, pooler.pool() raises OSError: stream operation not supported.

Although it can be written in a way that the pooler runs only on CP 8.x.x with a simple if statement, I don't really believe it is a way to go.

Additionally even in select library docs it says that this functionality is not supported on all CP builds.

Right now, this lib is not working properly on CP 8.0.0beta6, so wraping this code in try...except... might be a good temporary solution, until the underlaying error in CP's 8.0.0 socketpool (adafruit/circuitpython#7431) is resolved.

[dhalbert]

I think the underlying problem that makes this fix needed is fixed by adafruit/circuitpython#7455. @michalpokusa Do you think this is useful anyway, or is it only needed as a workaround?

[michalpokusa]

I think the underlying problem that makes this fix needed is fixed by adafruit/circuitpython#7455. @michalpokusa Do you think this is useful anyway, or is it only needed as a workaround?

Seems that PR to CP indeed fixes the blocking socket issue.

This PR was an experimental workaround to make this lib work on 8.0.0-beta6, but it had some issues connected to select module on 7.3.3.

In my opinion it is somewhat useful until your changes are merged and released under e.g. 8.0.0-beta7 as some people might still have problem and this PR might help them solve it.
After that it should be closed as no longer needed.

I changed the title and description to make it more verbose for people that might be looking for the fix.

[FoamyGuy]

8.0.0-rc.1 and now 8.0.0 stable have been released so this can be close now I think.