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Add Basic XCM #1934

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17 commits merged into from
Dec 14, 2020
Merged

Add Basic XCM #1934

17 commits merged into from
Dec 14, 2020

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shawntabrizi
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@shawntabrizi shawntabrizi commented Nov 9, 2020

This PR adds a basic XCM Sink and enables the Relay Chain to pass downward XCM messages to Parachains.

@github-actions github-actions bot added the A3-in_progress Pull request is in progress. No review needed at this stage. label Nov 9, 2020
@shawntabrizi shawntabrizi added B0-silent Changes should not be mentioned in any release notes C1-low PR touches the given topic and has a low impact on builders. labels Nov 9, 2020
@shawntabrizi shawntabrizi changed the title Add Basic XCM Sink for UMP Add Basic XCM Nov 18, 2020
@pepyakin pepyakin linked an issue Nov 24, 2020 that may be closed by this pull request
@shawntabrizi shawntabrizi marked this pull request as ready for review November 26, 2020 05:20
@github-actions github-actions bot added A0-please_review Pull request needs code review. and removed A3-in_progress Pull request is in progress. No review needed at this stage. labels Nov 26, 2020
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A couple of changes requested.

The problem I see here is that the implementation of xcm sink doesn't account for any weight. Also, there is no guarantee on how much weight execution of a message can take and that's important.

I am not going to block on this, since XCM is a huge experiment anyway, but we should keep that in mind.

@pepyakin pepyakin force-pushed the shawntabrizi-xcm-sink branch from e7a967b to 2e03494 Compare December 2, 2020 16:10
@pepyakin pepyakin force-pushed the shawntabrizi-xcm-sink branch from 2e03494 to beeafc8 Compare December 2, 2020 17:48
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bot merge

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ghost commented Dec 14, 2020

Trying merge.

@ghost ghost merged commit 6be1401 into master Dec 14, 2020
@ghost ghost deleted the shawntabrizi-xcm-sink branch December 14, 2020 10:11
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Hook up UMP to an XCM executor on rococo
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