Prototype with single host server and no admin panel (#2)

Reviewed-on: wrenn/sandbox#2
Co-authored-by: pptx704 <rafeed@omukk.dev>
Co-committed-by: pptx704 <rafeed@omukk.dev>

envd/internal/shared/smap/smap.go

@@ -0,0 +1,49 @@
+// SPDX-License-Identifier: Apache-2.0
+
+package smap
+
+import (
+	cmap "github.com/orcaman/concurrent-map/v2"
+)
+
+type Map[V any] struct {
+	m cmap.ConcurrentMap[string, V]
+}
+
+func New[V any]() *Map[V] {
+	return &Map[V]{
+		m: cmap.New[V](),
+	}
+}
+
+func (m *Map[V]) Remove(key string) {
+	m.m.Remove(key)
+}
+
+func (m *Map[V]) Get(key string) (V, bool) {
+	return m.m.Get(key)
+}
+
+func (m *Map[V]) Insert(key string, value V) {
+	m.m.Set(key, value)
+}
+
+func (m *Map[V]) Upsert(key string, value V, cb cmap.UpsertCb[V]) V {
+	return m.m.Upsert(key, value, cb)
+}
+
+func (m *Map[V]) InsertIfAbsent(key string, value V) bool {
+	return m.m.SetIfAbsent(key, value)
+}
+
+func (m *Map[V]) Items() map[string]V {
+	return m.m.Items()
+}
+
+func (m *Map[V]) RemoveCb(key string, cb func(key string, v V, exists bool) bool) bool {
+	return m.m.RemoveCb(key, cb)
+}
+
+func (m *Map[V]) Count() int {
+	return m.m.Count()
+}