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- package evidence
-
- import (
- "github.com/tendermint/tmlibs/log"
-
- "github.com/tendermint/tendermint/types"
- )
-
- // EvidencePool maintains a pool of valid evidence
- // in an EvidenceStore.
- type EvidencePool struct {
- params types.EvidenceParams
- logger log.Logger
-
- state types.State
- evidenceStore *EvidenceStore
-
- evidenceChan chan types.Evidence
- }
-
- func NewEvidencePool(params types.EvidenceParams, evidenceStore *EvidenceStore, state types.State) *EvidencePool {
- evpool := &EvidencePool{
- params: params,
- logger: log.NewNopLogger(),
- evidenceStore: evidenceStore,
- state: state,
- evidenceChan: make(chan types.Evidence),
- }
- return evpool
- }
-
- // SetLogger sets the Logger.
- func (evpool *EvidencePool) SetLogger(l log.Logger) {
- evpool.logger = l
- }
-
- // EvidenceChan returns an unbuffered channel on which new evidence can be received.
- func (evpool *EvidencePool) EvidenceChan() <-chan types.Evidence {
- return evpool.evidenceChan
- }
-
- // PriorityEvidence returns the priority evidence.
- func (evpool *EvidencePool) PriorityEvidence() []types.Evidence {
- return evpool.evidenceStore.PriorityEvidence()
- }
-
- // PendingEvidence returns all uncommitted evidence.
- func (evpool *EvidencePool) PendingEvidence() []types.Evidence {
- return evpool.evidenceStore.PendingEvidence()
- }
-
- // AddEvidence checks the evidence is valid and adds it to the pool.
- // Blocks on the EvidenceChan.
- func (evpool *EvidencePool) AddEvidence(evidence types.Evidence) (err error) {
-
- // XXX: is this thread safe ?
- priority, err := evpool.state.VerifyEvidence(evidence)
- if err != nil {
- return err
- }
-
- added := evpool.evidenceStore.AddNewEvidence(evidence, priority)
- if !added {
- // evidence already known, just ignore
- return
- }
-
- evpool.logger.Info("Verified new evidence of byzantine behaviour", "evidence", evidence)
-
- evpool.evidenceChan <- evidence
- return nil
- }
-
- // MarkEvidenceAsCommitted marks all the evidence as committed.
- func (evpool *EvidencePool) MarkEvidenceAsCommitted(evidence []types.Evidence) {
- for _, ev := range evidence {
- evpool.evidenceStore.MarkEvidenceAsCommitted(ev)
- }
- }
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