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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,155 @@ | ||
| package p2p | ||
|
|
||
| import ( | ||
| "encoding/binary" | ||
| "slices" | ||
| "sync" | ||
| "time" | ||
|
|
||
| "github.com/MixinNetwork/mixin/crypto" | ||
| "github.com/dgraph-io/ristretto" | ||
| ) | ||
|
|
||
| type confirmMap struct { | ||
| cache *ristretto.Cache | ||
| } | ||
|
|
||
| func (m *confirmMap) contains(key []byte, duration time.Duration) bool { | ||
| if key == nil { | ||
| return false | ||
| } | ||
| val, found := m.cache.Get(key) | ||
| if found { | ||
| ts := time.Unix(0, int64(binary.BigEndian.Uint64(val.([]byte)))) | ||
| return ts.Add(duration).After(time.Now()) | ||
| } | ||
| return false | ||
| } | ||
|
|
||
| func (m *confirmMap) store(key []byte, ts time.Time) { | ||
| if key == nil { | ||
| panic(ts) | ||
| } | ||
| buf := make([]byte, 8) | ||
| binary.BigEndian.PutUint64(buf, uint64(ts.UnixNano())) | ||
| m.cache.Set(key, buf, 8) | ||
| } | ||
|
|
||
| type remoteRelayer struct { | ||
| Id crypto.Hash | ||
| ActiveAt time.Time | ||
| } | ||
|
|
||
| type relayersMap struct { | ||
| sync.RWMutex | ||
| m map[crypto.Hash][]*remoteRelayer | ||
| } | ||
|
|
||
| func (m *relayersMap) Get(key crypto.Hash) []crypto.Hash { | ||
| m.RLock() | ||
| defer m.RUnlock() | ||
|
|
||
| var relayers []crypto.Hash | ||
| for _, r := range m.m[key] { | ||
| if r.ActiveAt.Add(time.Minute).Before(time.Now()) { | ||
| continue | ||
| } | ||
| relayers = append(relayers, r.Id) | ||
| } | ||
| return relayers | ||
| } | ||
|
|
||
| func (m *relayersMap) Add(key crypto.Hash, v crypto.Hash) { | ||
| m.Lock() | ||
| defer m.Unlock() | ||
|
|
||
| var relayers []*remoteRelayer | ||
| for _, r := range m.m[key] { | ||
| if r.ActiveAt.Add(time.Minute).After(time.Now()) { | ||
| relayers = append(relayers, r) | ||
| } | ||
| } | ||
| for _, r := range relayers { | ||
| if r.Id == v { | ||
| r.ActiveAt = time.Now() | ||
| return | ||
| } | ||
| } | ||
| i := slices.IndexFunc(relayers, func(r *remoteRelayer) bool { | ||
| return r.Id == v | ||
| }) | ||
| if i < 0 { | ||
| relayers = append(relayers, &remoteRelayer{ActiveAt: time.Now(), Id: v}) | ||
| } else { | ||
| relayers[i].ActiveAt = time.Now() | ||
| } | ||
| m.m[key] = relayers | ||
| } | ||
|
|
||
| type neighborMap struct { | ||
| sync.RWMutex | ||
| m map[crypto.Hash]*Peer | ||
| } | ||
|
|
||
| func (m *neighborMap) Get(key crypto.Hash) *Peer { | ||
| m.RLock() | ||
| defer m.RUnlock() | ||
|
|
||
| return m.m[key] | ||
| } | ||
|
|
||
| func (m *neighborMap) Delete(key crypto.Hash) { | ||
| m.Lock() | ||
| defer m.Unlock() | ||
|
|
||
| delete(m.m, key) | ||
| } | ||
|
|
||
| func (m *neighborMap) Set(key crypto.Hash, v *Peer) { | ||
| m.Lock() | ||
| defer m.Unlock() | ||
|
|
||
| m.m[key] = v | ||
| } | ||
|
|
||
| func (m *neighborMap) Put(key crypto.Hash, v *Peer) bool { | ||
| m.Lock() | ||
| defer m.Unlock() | ||
|
|
||
| if m.m[key] != nil { | ||
| return false | ||
| } | ||
| m.m[key] = v | ||
| return true | ||
| } | ||
|
|
||
| func (m *neighborMap) Slice() []*Peer { | ||
| m.Lock() | ||
| defer m.Unlock() | ||
|
|
||
| var peers []*Peer | ||
| for _, p := range m.m { | ||
| peers = append(peers, p) | ||
| } | ||
| return peers | ||
| } | ||
|
|
||
| func (m *neighborMap) Clear() { | ||
| m.Lock() | ||
| defer m.Unlock() | ||
|
|
||
| for id := range m.m { | ||
| delete(m.m, id) | ||
| } | ||
| } | ||
|
|
||
| func (m *neighborMap) RunOnce(key crypto.Hash, v *Peer, f func()) { | ||
| m.Lock() | ||
| defer m.Unlock() | ||
|
|
||
| if m.m[key] != nil { | ||
| return | ||
| } | ||
| m.m[key] = v | ||
| go f() | ||
| } |