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Price Oracle (XLS-47d): (#4789) (#4789)

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Implement native support for Price Oracles.

 A Price Oracle is used to bring real-world data, such as market prices,
 onto the blockchain, enabling dApps to access and utilize information
 that resides outside the blockchain.

 Add Price Oracle functionality:
 - OracleSet: create or update the Oracle object
 - OracleDelete: delete the Oracle object

 To support this functionality add:
 - New RPC method, `get_aggregate_price`, to calculate aggregate price for a token pair of the specified oracles
 - `ltOracle` object

 The `ltOracle` object maintains:
 - Oracle Owner's account
 - Oracle's metadata
 - Up to ten token pairs with the scaled price
 - The last update time the token pairs were updated

 Add Oracle unit-tests
This commit is contained in:
Gregory Tsipenyuk
2024-02-26 06:28:26 -05:00
committed by tequ
parent 20812b4a2c
commit 833a75f57a
40 changed files with 2865 additions and 8 deletions
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1
src/ripple/protocol/impl/Feature.cpp
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@@ -485,6 +485,7 @@ REGISTER_FIX(fixFillOrKill, Supported::yes, VoteBehavior::De
REGISTER_FIX (fixNFTokenReserve, Supported::yes, VoteBehavior::DefaultNo);
REGISTER_FIX (fixInnerObjTemplate, Supported::yes, VoteBehavior::DefaultNo);
REGISTER_FIX (fixAMMOverflowOffer, Supported::yes, VoteBehavior::DefaultYes);
REGISTER_FEATURE(PriceOracle, Supported::yes, VoteBehavior::DefaultNo);
// The following amendments are obsolete, but must remain supported
// because they could potentially get enabled.