mirror of
https://github.com/XRPLF/rippled.git
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122 lines
2.8 KiB
C++
122 lines
2.8 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) 2021 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_BASICS_SHAMAP_HASH_H_INCLUDED
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#define RIPPLE_BASICS_SHAMAP_HASH_H_INCLUDED
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#include <xrpl/basics/base_uint.h>
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#include <xrpl/basics/partitioned_unordered_map.h>
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#include <ostream>
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namespace ripple {
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// A SHAMapHash is the hash of a node in a SHAMap, and also the
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// type of the hash of the entire SHAMap.
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class SHAMapHash
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{
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uint256 hash_;
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public:
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SHAMapHash() = default;
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explicit SHAMapHash(uint256 const& hash) : hash_(hash)
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{
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}
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uint256 const&
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as_uint256() const
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{
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return hash_;
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}
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uint256&
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as_uint256()
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{
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return hash_;
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}
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bool
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isZero() const
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{
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return hash_.isZero();
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}
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bool
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isNonZero() const
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{
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return hash_.isNonZero();
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}
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int
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signum() const
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{
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return hash_.signum();
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}
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void
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zero()
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{
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hash_.zero();
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}
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friend bool
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operator==(SHAMapHash const& x, SHAMapHash const& y)
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{
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return x.hash_ == y.hash_;
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}
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friend bool
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operator<(SHAMapHash const& x, SHAMapHash const& y)
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{
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return x.hash_ < y.hash_;
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}
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friend std::ostream&
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operator<<(std::ostream& os, SHAMapHash const& x)
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{
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return os << x.hash_;
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}
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friend std::string
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to_string(SHAMapHash const& x)
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{
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return to_string(x.hash_);
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}
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template <class H>
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friend void
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hash_append(H& h, SHAMapHash const& x)
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{
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hash_append(h, x.hash_);
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}
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};
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inline bool
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operator!=(SHAMapHash const& x, SHAMapHash const& y)
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{
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return !(x == y);
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}
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template <>
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inline std::size_t
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extract(SHAMapHash const& key)
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{
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return *reinterpret_cast<std::size_t const*>(key.as_uint256().data());
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}
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} // namespace ripple
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#endif // RIPPLE_BASICS_SHAMAP_HASH_H_INCLUDED
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