new wstore package, move core types to there. create a syncmap

pkg/util/ds/syncmap.go

@@ -0,0 +1,43 @@
+// Copyright 2024, Command Line Inc.
+// SPDX-License-Identifier: Apache-2.0
+
+package ds
+
+import "sync"
+
+type SyncMap[T any] struct {
+	lock *sync.Mutex
+	m    map[string]T
+}
+
+func NewSyncMap[T any]() *SyncMap[T] {
+	return &SyncMap[T]{
+		lock: &sync.Mutex{},
+		m:    make(map[string]T),
+	}
+}
+
+func (sm *SyncMap[T]) Set(key string, value T) {
+	sm.lock.Lock()
+	defer sm.lock.Unlock()
+	sm.m[key] = value
+}
+
+func (sm *SyncMap[T]) Get(key string) T {
+	sm.lock.Lock()
+	defer sm.lock.Unlock()
+	return sm.m[key]
+}
+
+func (sm *SyncMap[T]) GetEx(key string) (T, bool) {
+	sm.lock.Lock()
+	defer sm.lock.Unlock()
+	v, ok := sm.m[key]
+	return v, ok
+}
+
+func (sm *SyncMap[T]) Delete(key string) {
+	sm.lock.Lock()
+	defer sm.lock.Unlock()
+	delete(sm.m, key)
+}