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93 lines
2.9 KiB
C++
93 lines
2.9 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_ACCEPTEDLEDGER_H
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#define RIPPLE_ACCEPTEDLEDGER_H
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/** A ledger that has become irrevocable.
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An accepted ledger is a ledger that has a sufficient number of
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validations to convince the local server that it is irrevocable.
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The existence of an accepted ledger implies all preceding ledgers
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are accepted.
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*/
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/* VFALCO TODO digest this terminology clarification:
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Closed and accepted refer to ledgers that have not passed the
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validation threshold yet. Once they pass the threshold, they are
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"Validated". Closed just means its close time has passed and no
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new transactions can get in. "Accepted" means we believe it to be
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the result of the a consensus process (though haven't validated
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it yet).
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*/
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class AcceptedLedger
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{
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public:
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typedef boost::shared_ptr<AcceptedLedger> pointer;
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typedef const pointer& ret;
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typedef std::map<int, AcceptedLedgerTx::pointer> map_t; // Must be an ordered map!
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typedef map_t::value_type value_type;
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typedef map_t::const_iterator const_iterator;
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public:
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static pointer makeAcceptedLedger (Ledger::ref ledger);
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static void sweep ()
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{
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s_cache.sweep ();
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}
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Ledger::ref getLedger () const
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{
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return mLedger;
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}
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const map_t& getMap () const
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{
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return mMap;
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}
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int getLedgerSeq () const
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{
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return mLedger->getLedgerSeq ();
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}
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int getTxnCount () const
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{
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return mMap.size ();
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}
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static float getCacheHitRate ()
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{
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return s_cache.getHitRate ();
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}
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AcceptedLedgerTx::pointer getTxn (int) const;
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private:
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explicit AcceptedLedger (Ledger::ref ledger);
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void insert (AcceptedLedgerTx::ref);
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private:
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static TaggedCacheType <uint256, AcceptedLedger, UptimeTimerAdapter> s_cache;
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Ledger::pointer mLedger;
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map_t mMap;
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};
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#endif
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