jurvis

Dual-Funding/Splicing Sync 10/12

Dual-Funding

• Duncan has been working within 2302 for v2 chan establishment
• Working with constructor has been working fine, and has done work up to tx_signatures
• Duncan left suggested changes in the interactive txs PR
• Precompute the serial ids instead of passing an entropy_source in interactive txs

What should we do for errors? Not for illegal state transitions, but for when our counterparty sends a message completely unexpected.

• we should send warning, and then disconnect instead of closing the channel since we do not want to do that for a splice use-case

jurvis

Splicing Sync Notes (08/30/2023)

Attendees: Jeff Czyz, Matt Corallo, optout, Jesse Posner, Wilmer Paulino, Jurvis Tan

Interactive-tx branch updates

There are two main thrusts of the effort right now.

1. Users define inputs/outputs they want to contribute upfront (Batching)

• Change InteractiveTxConstructor API to allow user to define the inputs/outputs, and let it steer the negotiation without user interaction.

jurvis

Participants: Jeff Czyz, Wilmer Paulino, Duncan Dean, Jesse Posner, Jurvis Tan

Interactive TX branch

Few things left before the PR is less of a "draft" state and becomes more reviewable:

1. Have InteractiveTxConstructor return Result types in its methods
2. Rework functions to take in the wire message structs as parameters
3. Write tests

Channel Establishment V2

jurvis

Notes

Interactive TX branches

• Instead of ChannelMode enum, we could have a map for each different types of state (5 different places)
  • we could do that, but there's a lot of copying/reassigning
• We should error with Result
• We should hide the match/if let in the InteractiveTxConstructor
• Type-parameterized version
  • encapsulates the enum and the matches such that the call-sites are cleaner
  • move data into the enum

jurvis

jurvis/dunxen Mar 21st, 2023 Dual-Funded Channels/Splicing Sync

Dual Funding

Things in Review

Dual funding messages #1794

Takes care the messages we need for dual-funding, helps with work related to constructing interactive transactions

Splitting up Channel -- a refactor that ties in to everything

Split prefunded Channel into Inbound/Outbound channels #2077 (major refactor in progress)

jurvis

@propertyWrapper struct DocDirectoryBacked<Value: Codable> {
    let location: String
    let documentDirectory = try! FileManager.default.url(for: .libraryDirectory, in: .userDomainMask, appropriateFor: nil, create: true)
    
    private var dirToSave: URL {
        return documentDirectory.appendingPathComponent("\(location).json")
    }
    
    var wrappedValue: Value? {
        get {

jurvis

Our Data

Nebulo's data all conform to US EPA AQI standards. See below for the specific description of each country.

Singapore & Hong Kong

Singapore and Hong Kong both offer 1-hour PM2.5 readings in ug/m3. We take these readings and convert them to US EPA AQI using PM2.5 as the pollutant.

Singapore Data source: National Environment Agency - Haze Updates, 1-hr PM2.5 Readings

Hong Kong Data source: Environmental Protection Department - Air Quality Health Index (AQHI), Pollutant concentrations

jurvis

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