feat 初次提交

internal/instance/manager.go

@@ -0,0 +1,42 @@
+package instance
+
+import (
+	"sync"
+)
+
+var Mgr *insManager
+
+type insManager struct {
+	sync.RWMutex
+	insMap map[int64]*Instance // [uniqueNo]
+}
+
+func init() {
+	Mgr = &insManager{
+		insMap: make(map[int64]*Instance),
+	}
+}
+
+func (m *insManager) Add(uniqueNo int64, ins *Instance) {
+	m.Lock()
+	defer m.Unlock()
+	m.insMap[uniqueNo] = ins
+}
+
+func (m *insManager) Delete(uniqueNo int64) {
+	m.Lock()
+	defer m.Unlock()
+	delete(m.insMap, uniqueNo)
+}
+
+func (m *insManager) GetAll() map[int64]*Instance {
+	m.RLock()
+	defer m.RUnlock()
+	return m.insMap
+}
+
+func (m *insManager) GetByUniqueNo(uniqueNo int64) *Instance {
+	m.RLock()
+	defer m.RUnlock()
+	return m.insMap[uniqueNo]
+}