233f060b0b
Add AMM functionality: - InstanceCreate - Deposit - Withdraw - Governance - Auctioning - payment engine integration To support this functionality, add: - New RPC method, `amm_info`, to fetch pool and LPT balances - AMM Root Account - trust line for each IOU AMM token - trust line to track Liquidity Provider Tokens (LPT) - `ltAMM` object The `ltAMM` object tracks: - fee votes - auction slot bids - AMM tokens pair - total outstanding tokens balance - `AMMID` to AMM `RootAccountID` mapping Add new classes to facilitate AMM integration into the payment engine. `BookStep` uses these classes to infer if AMM liquidity can be consumed. The AMM formula implementation uses the new Number class added in #4192. IOUAmount and STAmount use Number arithmetic. Add AMM unit tests for all features. AMM requires the following amendments: - featureAMM - fixUniversalNumber - featureFlowCross Notes: - Current trading fee threshold is 1% - AMM currency is generated by: 0x03 + 152 bits of sha256{cur1, cur2} - Current max AMM Offers is 30 --------- Co-authored-by: Howard Hinnant <howard.hinnant@gmail.com>
rippled Source
Some of these directories come from entire outside repositories brought in
using [git-subtree][]. This means that the source files are inserted directly
into the rippled repository. They can be edited and committed just as if they
were normal files.
[git-subtree]: https://github.com/apenwarr/git-subtree
If you create a commit that contains files both from a subtree, and from the
rippled source tree, please use care when designing the commit message, since
it will appear in the subtree's individual repository when the changes are
pushed back to the upstream. Better yet, do not mix files from subtrees and
ripple in the same commit at all.
Source folders:
| Folder | Upstream Repo | Description |
|---|---|---|
beast |
N/A | legacy utility code that was formerly associated with boost::beast |
ed25519-donna |
https://github.com/floodyberry/ed25519-donna | Ed25519 digital signatures |
ripple |
N/A | Core source code for rippled |
secp256k1 |
https://github.com/bitcoin-core/secp256k1 | ECDSA digital signatures using the secp256k1 curve |
test |
N/A | Unit tests for rippled |
The following dependencies are downloaded and built using ExternalProject (or FetchContent, where possible). Refer to CMakeLists.txt file for details about how these sources are built :
| Name | Upstream Repo | Description |
|---|---|---|
lz4 |
https://github.com/lz4/lz4 | LZ4 lossless compression algorithm |
nudb |
https://github.com/vinniefalco/NuDB | Constant-time insert-only key/value database for SSD drives (Less memory usage than RocksDB.) |
snappy |
https://github.com/google/snappy | "Snappy" lossless compression algorithm. |
soci |
https://github.com/SOCI/soci | Abstraction layer for database access. |
sqlite |
https://www.sqlite.org/src | An embedded database engine that writes to simple files. |
rocksdb |
https://github.com/facebook/rocksdb | Fast key/value database. (Supports rotational disks better than NuDB.) |
protobuf |
https://github.com/google/protobuf | Protocol buffer data interchange format. Only downloaded/built if a suitable version is not found by find_package, or if the local_protobuf option is explicitly set |