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Some small tweaks and some better comments.

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This commit is contained in:
JoelKatz
2012-07-01 01:26:04 -07:00
parent c8c088212e
commit cdb716e938
2 changed files with 18 additions and 12 deletions
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25
src/LedgerTiming.cpp
View File

@@ -2,13 +2,14 @@
#include "LedgerTiming.h"
// Returns the number of seconds the ledger should be be open.
int ContinuousLedgerTiming::shouldClose( // How many:
// Called when a ledger is open and no close is in progress -- when a transaction is received and no close
// is in process, or when a close completes. Returns the number of seconds the ledger should be be open.
int ContinuousLedgerTiming::shouldClose(
bool anyTransactions,
int previousProposers, // proposers there were in the last closing
int proposersClosed, // proposers who have currently closed their ledgers
int previousOpenSeconds, // seconds the previous ledger was open
int currentOpenSeconds) // seconds since the previous ledger closed
int previousProposers, // proposers in the last closing
int proposersClosed, // proposers who have currently closed this ledgers
int previousSeconds, // seconds the previous ledger took to reach consensus
int currentSeconds) // seconds since the previous ledger closed
{
if (!anyTransactions)
{ // no transactions so far this interval
@@ -41,21 +42,23 @@ bool ContinuousLedgerTiming::haveConsensus(
int previousAgreeTime, // how long it took to agree on the last ledger
int currentAgreeTime) // how long we've been trying to agree
{
if (currentAgreeTime <= LEDGER_MIN_CONSENSUS)
return false;
if (currentProposers < (previousProposers * 3 / 4))
{ // Less than 3/4 of the validators are present, slow down
{ // Less than 3/4 of the last ledger's proposers are present, we may need more time
if (currentAgreeTime < (previousAgreeTime + 2))
return false;
}
// If 80% of current proposers (plus us) agree on a set, we have consensus
int agreeWeight = (currentAgree * 100 + 100) / (currentProposers + 1);
if (agreeWeight > 80)
if (((currentAgree * 100 + 100) / (currentProposers + 1)) > 80)
return true;
// If 50% of the nodes on your UNL (minus us) have closed, you should close
int closeWeight = (currentClosed * 100 - 100) / (currentProposers + 1);
if (closeWeight > 50)
if (((currentClosed * 100 - 100) / (currentProposers + 1)) > 50)
return true;
// no consensus yet
return false;
}

5
src/LedgerTiming.h
View File

@@ -7,6 +7,9 @@
// The number of seconds a validation remains current
# define LEDGER_MAX_INTERVAL 60
// The number of seconds we wait minimum to ensure participation
# define LEDGER_MIN_CONSENSUS 2
// Avalanche tuning
#define AV_INIT_CONSENSUS_PCT 50 // percentage of nodes on our UNL that must vote yes
@@ -25,7 +28,7 @@ public:
static int shouldClose(
bool anyTransactions,
int previousProposers, int proposersClosed,
int previousOpenSeconds, int currentOpenSeconds);
int previousSeconds, int currentSeconds);
static bool haveConsensus(
int previousProposers, int currentProposers,