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86 lines
2.2 KiB
86 lines
2.2 KiB
package behaviour
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import (
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"errors"
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tmsync "github.com/tendermint/tendermint/libs/sync"
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"github.com/tendermint/tendermint/p2p"
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)
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// Reporter provides an interface for reactors to report the behaviour
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// of peers synchronously to other components.
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type Reporter interface {
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Report(behaviour PeerBehaviour) error
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}
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// SwitchReporter reports peer behaviour to an internal Switch.
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type SwitchReporter struct {
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sw *p2p.Switch
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}
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// NewSwitchReporter return a new SwitchReporter instance which wraps the Switch.
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func NewSwitchReporter(sw *p2p.Switch) *SwitchReporter {
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return &SwitchReporter{
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sw: sw,
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}
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}
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// Report reports the behaviour of a peer to the Switch.
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func (spbr *SwitchReporter) Report(behaviour PeerBehaviour) error {
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peer := spbr.sw.Peers().Get(behaviour.peerID)
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if peer == nil {
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return errors.New("peer not found")
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}
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switch reason := behaviour.reason.(type) {
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case consensusVote, blockPart:
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spbr.sw.MarkPeerAsGood(peer)
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case badMessage:
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spbr.sw.StopPeerForError(peer, reason.explanation)
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case messageOutOfOrder:
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spbr.sw.StopPeerForError(peer, reason.explanation)
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default:
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return errors.New("unknown reason reported")
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}
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return nil
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}
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// MockReporter is a concrete implementation of the Reporter
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// interface used in reactor tests to ensure reactors report the correct
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// behaviour in manufactured scenarios.
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type MockReporter struct {
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mtx tmsync.RWMutex
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pb map[p2p.NodeID][]PeerBehaviour
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}
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// NewMockReporter returns a Reporter which records all reported
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// behaviours in memory.
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func NewMockReporter() *MockReporter {
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return &MockReporter{
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pb: map[p2p.NodeID][]PeerBehaviour{},
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}
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}
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// Report stores the PeerBehaviour produced by the peer identified by peerID.
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func (mpbr *MockReporter) Report(behaviour PeerBehaviour) error {
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mpbr.mtx.Lock()
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defer mpbr.mtx.Unlock()
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mpbr.pb[behaviour.peerID] = append(mpbr.pb[behaviour.peerID], behaviour)
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return nil
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}
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// GetBehaviours returns all behaviours reported on the peer identified by peerID.
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func (mpbr *MockReporter) GetBehaviours(peerID p2p.NodeID) []PeerBehaviour {
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mpbr.mtx.RLock()
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defer mpbr.mtx.RUnlock()
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if items, ok := mpbr.pb[peerID]; ok {
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result := make([]PeerBehaviour, len(items))
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copy(result, items)
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return result
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}
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return []PeerBehaviour{}
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}
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