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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.
127 lines
3.8 KiB
C++
127 lines
3.8 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) 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_STLEDGERENTRY_H_INCLUDED
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#define RIPPLE_PROTOCOL_STLEDGERENTRY_H_INCLUDED
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#include <ripple/protocol/LedgerFormats.h>
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#include <ripple/protocol/STObject.h>
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namespace ripple {
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class STLedgerEntry final
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: public STObject
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, public CountedObject <STLedgerEntry>
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{
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public:
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static char const* getCountedObjectName () { return "STLedgerEntry"; }
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typedef std::shared_ptr<STLedgerEntry> pointer;
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typedef const std::shared_ptr<STLedgerEntry>& ref;
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public:
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STLedgerEntry (const Serializer & s, uint256 const& index);
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STLedgerEntry (SerialIter & sit, uint256 const& index);
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STLedgerEntry (LedgerEntryType type, uint256 const& index);
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STLedgerEntry (const STObject & object, uint256 const& index);
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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 getSType () const override
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{
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return STI_LEDGERENTRY;
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}
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std::string getFullText () const override;
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std::string getText () const override;
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Json::Value getJson (int options) const override;
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uint256 const& getIndex () const
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{
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return mIndex;
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}
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void setIndex (uint256 const& i)
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{
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mIndex = i;
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}
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void setImmutable ()
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{
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mMutable = false;
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}
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bool isMutable ()
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{
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return mMutable;
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}
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STLedgerEntry::pointer getMutable () const;
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LedgerEntryType getType () const
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{
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return mType;
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}
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std::uint16_t getVersion () const
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{
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return getFieldU16 (sfLedgerEntryType);
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}
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LedgerFormats::Item const* getFormat ()
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{
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return mFormat;
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}
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bool isThreadedType (); // is this a ledger entry that can be threaded
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bool isThreaded (); // is this ledger entry actually threaded
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bool hasOneOwner (); // This node has one other node that owns it
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bool hasTwoOwners (); // This node has two nodes that own it (like ripple balance)
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RippleAddress getOwner ();
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RippleAddress getFirstOwner ();
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RippleAddress getSecondOwner ();
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uint256 getThreadedTransaction ();
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std::uint32_t getThreadedLedger ();
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bool thread (uint256 const& txID, std::uint32_t ledgerSeq, uint256 & prevTxID,
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std::uint32_t & prevLedgerID);
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std::vector<uint256> getOwners (); // nodes notified if this node is deleted
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private:
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/** Make STObject comply with the template for this SLE type
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Can throw
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*/
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void setSLEType ();
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private:
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uint256 mIndex;
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LedgerEntryType mType;
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LedgerFormats::Item const* mFormat;
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bool mMutable;
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};
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using SLE = STLedgerEntry;
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} // ripple
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#endif
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