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5883d756db
* upstream/develop: (518 commits) Set version to 2.4.0-b1 fix: Add header for set_difference (5197) fix: allow overlapping types in `Expected` (5218) Add MPTIssue to STIssue (5200) Antithesis instrumentation improvements (5213) Enforce levelization in libxrpl with CMake (5111) refactor: clean up `LedgerEntry.cpp` (5199) test: Add more test cases for Base58 parser (5174) test: Check for some unlikely null dereferences in tests (5004) Add Antithesis intrumentation (5042) Set version to 2.3.0 refactor(AMMClawback): move tfClawTwoAssets check (5201) Add a new serialized type: STNumber (5121) fix: check for valid ammID field in amm_info RPC (5188) Set version to 2.3.0-rc2 fix: include `index` in `server_definitions` RPC (5190) Fix ledger_entry crash on invalid credentials request (5189) Set version to 2.3.0-rc1 Replace Uint192 with Hash192 in server_definitions response (5177) Fix potential deadlock (5124) ...
133 lines
3.5 KiB
C++
133 lines
3.5 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_LEDGER_RULES_H_INCLUDED
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#define RIPPLE_LEDGER_RULES_H_INCLUDED
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#include <xrpl/basics/base_uint.h>
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#include <xrpl/beast/hash/uhash.h>
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#include <xrpl/protocol/STVector256.h>
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#include <unordered_set>
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namespace ripple {
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class DigestAwareReadView;
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/** Rules controlling protocol behavior. */
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class Rules
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{
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private:
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class Impl;
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// Carrying impl by shared_ptr makes Rules comparatively cheap to pass
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// by value.
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std::shared_ptr<Impl const> impl_;
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public:
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Rules(Rules const&) = default;
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Rules(Rules&&) = default;
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Rules&
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operator=(Rules const&) = default;
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Rules&
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operator=(Rules&&) = default;
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Rules() = delete;
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/** Construct an empty rule set.
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These are the rules reflected by
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the genesis ledger.
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*/
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explicit Rules(std::unordered_set<uint256, beast::uhash<>> const& presets);
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private:
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// Allow a friend function to construct Rules.
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friend Rules
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makeRulesGivenLedger(
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DigestAwareReadView const& ledger,
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Rules const& current);
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friend Rules
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makeRulesGivenLedger(
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DigestAwareReadView const& ledger,
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std::unordered_set<uint256, beast::uhash<>> const& presets);
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public:
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Rules(
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std::unordered_set<uint256, beast::uhash<>> const& presets,
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std::optional<uint256> const& digest,
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STVector256 const& amendments);
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std::unordered_set<uint256, beast::uhash<>> const&
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presets() const;
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public:
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/** Returns `true` if a feature is enabled. */
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bool
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enabled(uint256 const& feature) const;
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/** Returns `true` if two rule sets are identical.
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@note This is for diagnostics.
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*/
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bool
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operator==(Rules const&) const;
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bool
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operator!=(Rules const& other) const;
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};
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std::optional<Rules> const&
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getCurrentTransactionRules();
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void
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setCurrentTransactionRules(std::optional<Rules> r);
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/** RAII class to set and restore the current transaction rules
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*/
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class CurrentTransactionRulesGuard
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{
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public:
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explicit CurrentTransactionRulesGuard(Rules r)
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: saved_(getCurrentTransactionRules())
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{
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setCurrentTransactionRules(std::move(r));
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}
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~CurrentTransactionRulesGuard()
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{
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setCurrentTransactionRules(saved_);
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}
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CurrentTransactionRulesGuard() = delete;
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CurrentTransactionRulesGuard(CurrentTransactionRulesGuard const&) = delete;
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CurrentTransactionRulesGuard&
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operator=(CurrentTransactionRulesGuard const&) = delete;
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private:
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std::optional<Rules> saved_;
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};
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} // namespace ripple
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#endif
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