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lunfardo314
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Feb 13, 2025
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,87 @@ | ||
| package task | ||
|
|
||
| import ( | ||
| "time" | ||
|
|
||
| "github.com/lunfardo314/proxima/core/attacher" | ||
| ) | ||
|
|
||
| const TraceTagEndorse3Proposer = "propose-endorse3" | ||
|
|
||
| // TODO WIP | ||
|
|
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| //func init() { | ||
| // registerProposerStrategy(&Strategy{ | ||
| // Name: "endorse3", | ||
| // ShortName: "e3", | ||
| // GenerateProposal: endorse3ProposeGenerator, | ||
| // }) | ||
| //} | ||
|
|
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| func endorse3ProposeGenerator(p *Proposer) (*attacher.IncrementalAttacher, bool) { | ||
| if p.targetTs.IsSlotBoundary() { | ||
| // the proposer does not generate branch transactions | ||
| return nil, true | ||
| } | ||
|
|
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| // Check all pairs, in descending order | ||
| a := p.ChooseFirstExtendEndorsePair(false, nil) | ||
| if a == nil { | ||
| p.Tracef(TraceTagEndorse3Proposer, "propose: ChooseFirstExtendEndorsePair returned nil") | ||
| return nil, false | ||
| } | ||
| endorsing := a.Endorsing()[0] | ||
| extending := a.Extending() | ||
| if !a.Completed() { | ||
| a.Close() | ||
| p.Tracef(TraceTagEndorse3Proposer, "proposal [extend=%s, endorsing=%s] not complete 1", extending.IDShortString, endorsing.IDShortString) | ||
| return nil, false | ||
| } | ||
|
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| newOutputArrived := p.Backlog().ArrivedOutputsSince(p.slotData.lastTimeBacklogCheckedE2) | ||
| p.slotData.lastTimeBacklogCheckedE2 = time.Now() | ||
|
|
||
| // then try to add one endorsement more | ||
| addedSecond := false | ||
| endorsing0 := a.Endorsing()[0] | ||
| for _, endorsementCandidate := range p.Backlog().CandidatesToEndorseSorted(p.targetTs) { | ||
| select { | ||
| case <-p.ctx.Done(): | ||
| a.Close() | ||
| return nil, true | ||
| default: | ||
| } | ||
| if endorsementCandidate == endorsing0 { | ||
| continue | ||
| } | ||
| if !newOutputArrived { | ||
| continue | ||
| } | ||
| if !p.Task.slotData.checkCombination(extending, endorsing, endorsementCandidate) { | ||
| continue | ||
| } | ||
|
|
||
| if err := a.InsertEndorsement(endorsementCandidate); err == nil { | ||
| addedSecond = true | ||
| break //>>>> return attacher | ||
| } | ||
| p.Tracef(TraceTagEndorse3Proposer, "failed to include endorsement target %s", endorsementCandidate.IDShortString) | ||
| } | ||
| if !addedSecond { | ||
| // no need to repeat job of endorse1 | ||
| a.Close() | ||
| return nil, false | ||
| } | ||
|
|
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| p.insertInputs(a) | ||
|
|
||
| if !a.Completed() { | ||
| a.Close() | ||
| endorsing = a.Endorsing()[0] | ||
| extending = a.Extending() | ||
| p.Tracef(TraceTagEndorse3Proposer, "proposal [extend=%s, endorsing=%s] not complete 2", extending.IDShortString, endorsing.IDShortString) | ||
| return nil, false | ||
| } | ||
|
|
||
| return a, false | ||
| } |
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