refactor(splitter): clarify mapper ownership names

Co-Authored-By: Virgil <virgil@lethean.io>

splitter/nicehash/gc_test.go

@@ -42,8 +42,8 @@ func TestNonceSplitter_GC_Good(t *testing.T) {
 	mapper.storage.slots[0] = -1
 
 	splitter := &NonceSplitter{
-		mappers: []*NonceMapper{mapper},
-		byID:    map[int64]*NonceMapper{mapper.id: mapper},
+		mappers:    []*NonceMapper{mapper},
+		mapperByID: map[int64]*NonceMapper{mapper.id: mapper},
 	}
 
 	splitter.GC()
@@ -51,7 +51,7 @@ func TestNonceSplitter_GC_Good(t *testing.T) {
 	if len(splitter.mappers) != 0 {
 		t.Fatalf("expected idle mapper to be reclaimed, got %d mapper(s)", len(splitter.mappers))
 	}
-	if _, ok := splitter.byID[mapper.id]; ok {
+	if _, ok := splitter.mapperByID[mapper.id]; ok {
 		t.Fatalf("expected reclaimed mapper to be removed from lookup table")
 	}
 	if !strategy.disconnected {
@@ -77,8 +77,8 @@ func TestNonceSplitter_GC_Ugly(t *testing.T) {
 	mapper.storage.slots[0] = 7
 
 	splitter := &NonceSplitter{
-		mappers: []*NonceMapper{mapper},
-		byID:    map[int64]*NonceMapper{mapper.id: mapper},
+		mappers:    []*NonceMapper{mapper},
+		mapperByID: map[int64]*NonceMapper{mapper.id: mapper},
 	}
 
 	splitter.GC()

splitter/nicehash/impl.go

@@ -19,7 +19,7 @@ func NewNonceSplitter(config *proxy.Config, eventBus *proxy.EventBus, factory po
 		factory = pool.NewStrategyFactory(config)
 	}
 	return &NonceSplitter{
-		byID:            make(map[int64]*NonceMapper),
+		mapperByID:      make(map[int64]*NonceMapper),
 		config:          config,
 		events:          eventBus,
 		strategyFactory: factory,
@@ -51,14 +51,14 @@ func (s *NonceSplitter) OnLogin(event *proxy.LoginEvent) {
 	event.Miner.SetExtendedNiceHash(true)
 	for _, mapper := range s.mappers {
 		if mapper.Add(event.Miner) {
-			s.byID[mapper.id] = mapper
+			s.mapperByID[mapper.id] = mapper
 			return
 		}
 	}
 	mapper := s.addMapperLocked()
 	if mapper != nil {
 		_ = mapper.Add(event.Miner)
-		s.byID[mapper.id] = mapper
+		s.mapperByID[mapper.id] = mapper
 	}
 }
 
@@ -68,7 +68,7 @@ func (s *NonceSplitter) OnSubmit(event *proxy.SubmitEvent) {
 		return
 	}
 	s.mu.RLock()
-	mapper := s.byID[event.Miner.MapperID()]
+	mapper := s.mapperByID[event.Miner.MapperID()]
 	s.mu.RUnlock()
 	if mapper != nil {
 		mapper.Submit(event)
@@ -81,7 +81,7 @@ func (s *NonceSplitter) OnClose(event *proxy.CloseEvent) {
 		return
 	}
 	s.mu.RLock()
-	mapper := s.byID[event.Miner.MapperID()]
+	mapper := s.mapperByID[event.Miner.MapperID()]
 	s.mu.RUnlock()
 	if mapper != nil {
 		mapper.Remove(event.Miner)
@@ -106,7 +106,7 @@ func (s *NonceSplitter) GC() {
 			if mapper.strategy != nil {
 				mapper.strategy.Disconnect()
 			}
-			delete(s.byID, mapper.id)
+			delete(s.mapperByID, mapper.id)
 			_ = free
 			_ = dead
 			continue
@@ -169,7 +169,7 @@ func (s *NonceSplitter) Disconnect() {
 		}
 	}
 	s.mappers = nil
-	s.byID = make(map[int64]*NonceMapper)
+	s.mapperByID = make(map[int64]*NonceMapper)
 }
 
 // ReloadPools reconnects each mapper strategy using the updated pool list.
@@ -196,17 +196,17 @@ func (s *NonceSplitter) ReloadPools() {
 }
 
 func (s *NonceSplitter) addMapperLocked() *NonceMapper {
-	id := s.seq
-	s.seq++
+	id := s.nextMapperID
+	s.nextMapperID++
 	mapper := NewNonceMapper(id, s.config, nil)
 	mapper.events = s.events
 	mapper.lastUsed = time.Now()
 	mapper.strategy = s.strategyFactory(mapper)
 	s.mappers = append(s.mappers, mapper)
-	if s.byID == nil {
-		s.byID = make(map[int64]*NonceMapper)
+	if s.mapperByID == nil {
+		s.mapperByID = make(map[int64]*NonceMapper)
 	}
-	s.byID[mapper.id] = mapper
+	s.mapperByID[mapper.id] = mapper
 	mapper.Start()
 	return mapper
 }

splitter/nicehash/splitter.go

@@ -23,10 +23,10 @@ import (
 //	s.Connect()
 type NonceSplitter struct {
 	mappers         []*NonceMapper
-	byID            map[int64]*NonceMapper
+	mapperByID      map[int64]*NonceMapper
 	config          *proxy.Config
 	events          *proxy.EventBus
 	strategyFactory pool.StrategyFactory
 	mu              sync.RWMutex
-	seq             int64
+	nextMapperID    int64
 }

splitter/simple/impl.go

@@ -246,8 +246,8 @@ func (s *SimpleSplitter) ReloadPools() {
 }
 
 func (s *SimpleSplitter) newMapperLocked() *SimpleMapper {
-	id := s.seq
-	s.seq++
+	id := s.nextMapperID
+	s.nextMapperID++
 	mapper := NewSimpleMapper(id, nil)
 	mapper.events = s.events
 	mapper.strategy = s.factory(mapper)

splitter/simple/splitter.go

@@ -18,11 +18,11 @@ import (
 //
 //	s := simple.NewSimpleSplitter(cfg, eventBus, strategyFactory)
 type SimpleSplitter struct {
-	active  map[int64]*SimpleMapper // minerID → mapper
-	idle    map[int64]*SimpleMapper // mapperID → mapper (reuse pool, keyed by mapper seq)
-	config  *proxy.Config
-	events  *proxy.EventBus
-	factory pool.StrategyFactory
-	mu      sync.Mutex
-	seq     int64 // monotonic mapper sequence counter
+	active       map[int64]*SimpleMapper // minerID → mapper
+	idle         map[int64]*SimpleMapper // mapperID → mapper (reuse pool, keyed by mapper ID)
+	config       *proxy.Config
+	events       *proxy.EventBus
+	factory      pool.StrategyFactory
+	mu           sync.Mutex
+	nextMapperID int64 // monotonic mapper ID counter
 }