RedStoneAdapter

Title: RedStoneAdapter

Authors: David Dada <daveproxy80@gmail.com> (https://github.com/dadadave80), Modified from RedStone (https://github.com/redstone-finance/redstone-oracles-monorepo)

Diamond facet that reads RedStone Push price feeds from their on-chain PriceFeedsAdapter with per-feed staleness configuration and WAD-normalized answers.

Stateless delegator — all logic and storage live in RedStoneAdapterLib. Consumers inherit this contract and add AccessControl + an initializer.

Notes:

lattice-version: 0.1.0
lattice-source: RedStone

Functions

getFeed

Returns a feed's configuration.

function getFeed(bytes32 key)
        external
        view
        virtual
        override
        returns (address adapter, bytes32 dataFeedId, uint48 maxStaleness);

Parameters

Name	Type	Description
key	`bytes32`	The feed identifier.

Returns

Name	Type	Description
adapter	`address`	The RedStone PriceFeedsAdapter contract.
dataFeedId	`bytes32`	The RedStone data-feed id.
maxStaleness	`uint48`	Maximum age (seconds) before a value is stale.

latestAnswer

Returns the latest price for key, normalized to 18 decimals (WAD). Selector matches IPriceOracleReader.latestAnswer. Reverts on stale / future / zero / overflowing value.

function latestAnswer(bytes32 key) external view virtual override returns (int256 answerWad);

Parameters

Name	Type	Description
key	`bytes32`	The feed identifier.

Returns

Name	Type	Description
answerWad	`int256`	The latest price scaled to 1e18.

getValueForDataFeed

Returns the validated raw RedStone value (8 decimals) and the batch update timestamp.

Provider-native reader; keeps this adapter's ERC-165 id distinct from other read adapters that share the latestAnswer selector.

function getValueForDataFeed(bytes32 key)
        external
        view
        virtual
        override
        returns (uint256 value, uint256 timestamp);

Parameters

Name	Type	Description
key	`bytes32`	The feed identifier.

Returns

Name	Type	Description
value	`uint256`	The RedStone value (8 decimals).
timestamp	`uint256`	The on-chain batch update timestamp (seconds).

registerFeed

Registers a RedStone feed under key. Caller must hold DEFAULT_ADMIN_ROLE.

function registerFeed(bytes32 key, address adapter, bytes32 dataFeedId, uint48 maxStaleness)
        external
        virtual
        override;

Parameters

Name	Type	Description
key	`bytes32`	The arbitrary feed identifier.
adapter	`address`	The RedStone PriceFeedsAdapter contract (non-zero).
dataFeedId	`bytes32`	The RedStone data-feed id.
maxStaleness	`uint48`	Maximum age (seconds); must be non-zero.

unregisterFeed

Removes a registered feed. Caller must hold DEFAULT_ADMIN_ROLE.

function unregisterFeed(bytes32 key) external virtual override;

Parameters

Name	Type	Description
key	`bytes32`	The feed identifier to remove.

exportSelectors

ERC-8153 selector export: this facet's cuttable selectors, tightly packed (4 bytes each).

Excludes exportSelectors() itself (0x0ef22643) - it is never cut into a diamond. Order matches forge inspect RedStoneAdapter methodIdentifiers (alphabetical by signature); kept in exact parity by ExportSelectorsParityTest. Chunks: getFeed(bytes32) 0x280aebcf getValueForDataFeed(bytes32) 0x44e02982 latestAnswer(bytes32) 0x084d4783 registerFeed(bytes32,address,bytes32,uint48) 0x9b50b20b unregisterFeed(bytes32) 0x2a589908

function exportSelectors() external pure virtual returns (bytes memory selectors);

Returns

Name	Type	Description
selectors	`bytes`