Actor events for the Verified Registry, Miner and Market Actors [Meta Issue]

[aarshkshah1992]

• FIP at https://github.com/filecoin-project/FIPs/blob/master/FIPS/fip-0083.md
• Ongoing discussion at Actor events for the verified registry, miner, and market actors (FIP-0083) FIPs#754.
• PR at Built-in Actor events for DDO #1491

This issue aims to keep track of the remaining work needed to land this workstream.

TODO

• Rebase and merge Built-in Actor events for DDO #1491 to master after FIP-0076: Merge integration/direct-onboarding into master #1486 AND FIP-0074 Merge integration/manual-settlement into master #1483 lands on master

• Ensure the following two updates to FIP-0083 are approved and merged:
  - Update to add gas costs for emitting events to FIP 0083 FIPs#925
  - Update FIP-0083 based on feedback from review of implementation FIPs#913

[anorth]

Thanks. I reckon we want to include the built-in market here too. Scope could expand further (e.g. to Datacap) but verifreg/miner/market covers the core deal-making actions

[aarshkshah1992]

@anorth Updated the issue to account for the Market Actor.

[anorth]

Thanks. This can be all one FIP, doesn't need to be separated for different actors.

[anorth]

For the market, I think a minimal set we can use is deal-published, deal-activated, deal-completed, deal-terminated. A deal finishes with one or the other of those last two.

We could potentially add deal-expired (before activation) but it would only ever happen in cron, so probably not worth it here.

In master, deal completion is also only in cron, but that will be changed with FIP-0074

[aarshkshah1992]

Next steps here are to address feedback on the FIP and come up with gas cost estimations for event emission.

[aarshkshah1992]

Raised #1491 to implement this in a DDO world.