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3c9db4b69e
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>
117 lines
2.7 KiB
C++
117 lines
2.7 KiB
C++
//------------------------------------------------------------------------------
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/*
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This file is part of rippled: https://github.com/ripple/rippled
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Copyright (c) 2012, 2013 Ripple Labs Inc.
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Permission to use, copy, modify, and/or distribute this software for any
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purpose with or without fee is hereby granted, provided that the above
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copyright notice and this permission notice appear in all copies.
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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ANY SPECIAL , DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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//==============================================================================
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#ifndef RIPPLE_TEST_JTX_PATHS_H_INCLUDED
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#define RIPPLE_TEST_JTX_PATHS_H_INCLUDED
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#include <ripple/protocol/Issue.h>
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#include <test/jtx/Env.h>
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#include <type_traits>
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namespace ripple {
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namespace test {
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namespace jtx {
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/** Set Paths, SendMax on a JTx. */
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class paths
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{
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private:
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Issue in_;
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int depth_;
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unsigned int limit_;
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public:
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paths(Issue const& in, int depth = 7, unsigned int limit = 4)
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: in_(in), depth_(depth), limit_(limit)
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{
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}
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void
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operator()(Env&, JTx& jt) const;
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};
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//------------------------------------------------------------------------------
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/** Add a path.
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If no paths are present, a new one is created.
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*/
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class path
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{
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private:
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Json::Value jv_;
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public:
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path();
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template <class T, class... Args>
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explicit path(T const& t, Args const&... args);
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void
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operator()(Env&, JTx& jt) const;
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private:
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Json::Value&
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create();
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void
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append_one(Account const& account);
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void
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append_one(AccountID const& account);
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template <class T>
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std::enable_if_t<std::is_constructible<Account, T>::value>
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append_one(T const& t)
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{
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append_one(Account{t});
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}
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void
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append_one(IOU const& iou);
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void
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append_one(BookSpec const& book);
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template <class T, class... Args>
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void
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append(T const& t, Args const&... args);
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};
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template <class T, class... Args>
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path::path(T const& t, Args const&... args) : jv_(Json::arrayValue)
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{
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append(t, args...);
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}
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template <class T, class... Args>
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void
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path::append(T const& t, Args const&... args)
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{
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append_one(t);
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if constexpr (sizeof...(args) > 0)
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append(args...);
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}
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} // namespace jtx
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} // namespace test
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} // namespace ripple
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#endif
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