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0bc9c0b737
majority of validators. Enforce minimum ledger open time which is extended if there are too few validations.
82 lines
2.7 KiB
C++
82 lines
2.7 KiB
C++
#ifndef __LEDGERTIMING__
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#define __LEDGERTIMING__
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// The number of seconds a ledger may remain idle before closing
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# define LEDGER_IDLE_INTERVAL 15
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// The number of seconds a validation remains current after its ledger's close time
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// This is a safety to protect against very old validations and the time it takes to adjust
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// the close time accuracy window
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# define LEDGER_VAL_INTERVAL 300
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// The number of seconds before a close time that we consider a validation acceptable
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// This protects against extreme clock errors
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# define LEDGER_EARLY_INTERVAL 180
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// The number of milliseconds we wait minimum to ensure participation
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# define LEDGER_MIN_CONSENSUS 2000
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// The number of milliseconds we wait minimum to ensure others have computed the LCL
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# define LEDGER_MIN_CLOSE 2000
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// Initial resolution of ledger close time
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# define LEDGER_TIME_ACCURACY 30
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// How often to increase resolution
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# define LEDGER_RES_INCREASE 8
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// How often to decrease resolution
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# define LEDGER_RES_DECREASE 1
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// How often we check state or change positions (in milliseconds)
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# define LEDGER_GRANULARITY 1000
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// The percentage of active trusted validators that must be able to
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// keep up with the network or we consider the network overloaded
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# define LEDGER_NET_RATIO 70
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// How long we consider a proposal fresh
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# define PROPOSE_FRESHNESS 20
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// How often we force generating a new proposal to keep ours fresh
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# define PROPOSE_INTERVAL 12
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// Avalanche tuning
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# define AV_INIT_CONSENSUS_PCT 50 // percentage of nodes on our UNL that must vote yes
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# define AV_MID_CONSENSUS_TIME 50 // percentage of previous close time before we advance
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# define AV_MID_CONSENSUS_PCT 65 // percentage of nodes that most vote yes after advancing
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# define AV_LATE_CONSENSUS_TIME 85 // percentage of previous close time before we advance
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# define AV_LATE_CONSENSUS_PCT 70 // percentage of nodes that most vote yes after advancing
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# define AV_STUCK_CONSENSUS_TIME 200
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# define AV_STUCK_CONSENSUS_PCT 95
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# define AV_CT_CONSENSUS_PCT 75
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class ContinuousLedgerTiming
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{
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public:
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static int LedgerTimeResolution[];
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// Returns the number of seconds the ledger was or should be open
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// Call when a consensus is reached and when any transaction is relayed to be added
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static bool shouldClose(
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bool anyTransactions,
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int previousProposers, int proposersClosed, int proposerersValidated,
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int previousMSeconds, int currentMSeconds, int openMSeconds,
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int idleInterval);
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static bool haveConsensus(
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int previousProposers, int currentProposers,
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int currentAgree, int currentClosed,
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int previousAgreeTime, int currentAgreeTime,
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bool forReal, bool& failed);
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static int getNextLedgerTimeResolution(int previousResolution, bool previousAgree, int ledgerSeq);
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};
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#endif
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