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99c2fac143
This introduces the STVar container, capable of holding any STBase-derived class and implementing a "small string" optimization. STObject is changed to store std::vector<STVar> instead of boost::ptr_vector<STBase>. This eliminates a significant number of needless dynamic memory allocations and deallocations during transaction processing when ledger entries are deserialized. It comes at the expense of larger overall storage requirements for STObject.
159 lines
3.4 KiB
C++
159 lines
3.4 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_PROTOCOL_STBITSTRING_H_INCLUDED
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#define RIPPLE_PROTOCOL_STBITSTRING_H_INCLUDED
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#include <ripple/protocol/STBase.h>
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namespace ripple {
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template <std::size_t Bits>
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class STBitString final
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: public STBase
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{
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public:
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typedef base_uint<Bits> BitString;
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STBitString () = default;
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STBitString (SField::ref n)
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: STBase (n)
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{ }
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STBitString (const BitString& v)
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: bitString_ (v)
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{ }
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STBitString (SField::ref n, const BitString& v)
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: STBase (n), bitString_ (v)
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{ }
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STBitString (SField::ref n, const char* v)
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: STBase (n)
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{
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bitString_.SetHex (v);
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}
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STBitString (SField::ref n, std::string const& v)
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: STBase (n)
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{
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bitString_.SetHex (v);
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}
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STBitString (SerialIter& sit, SField::ref name)
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: STBitString(name, sit.getBitString<Bits>())
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{
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}
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STBase*
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copy (std::size_t n, void* buf) const override
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{
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return emplace(n, buf, *this);
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}
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STBase*
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move (std::size_t n, void* buf) override
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{
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return emplace(n, buf, std::move(*this));
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}
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SerializedTypeID
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getSType () const override;
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std::string
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getText () const override
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{
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return to_string (bitString_);
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}
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bool
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isEquivalent (const STBase& t) const override
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{
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const STBitString* v = dynamic_cast<const STBitString*> (&t);
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return v && (bitString_ == v->bitString_);
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}
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void
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add (Serializer& s) const override
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{
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assert (fName->isBinary ());
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assert (fName->fieldType == getSType());
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s.addBitString<Bits> (bitString_);
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}
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const BitString&
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getValue () const
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{
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return bitString_;
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}
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template <typename Tag>
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void setValue (base_uint<Bits, Tag> const& v)
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{
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bitString_.copyFrom(v);
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}
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operator BitString () const
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{
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return bitString_;
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}
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bool
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isDefault () const override
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{
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return bitString_ == zero;
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}
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private:
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BitString bitString_;
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};
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using STHash128 = STBitString<128>;
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using STHash160 = STBitString<160>;
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using STHash256 = STBitString<256>;
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template <>
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inline
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SerializedTypeID
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STHash128::getSType () const
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{
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return STI_HASH128;
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}
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template <>
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inline
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SerializedTypeID
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STHash160::getSType () const
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{
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return STI_HASH160;
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}
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template <>
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inline
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SerializedTypeID
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STHash256::getSType () const
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{
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return STI_HASH256;
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}
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} // ripple
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#endif
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