add SharedVariable

SharedVariable.cs

@@ -0,0 +1,88 @@
+// Copyright(c) 2020 pypy. All rights reserved.
+//
+// This work is licensed under the terms of the MIT license.
+// For a copy, see <https://opensource.org/licenses/MIT>.
+
+using System.Collections.Generic;
+using System.Threading;
+
+namespace VRCX
+{
+    public class SharedVariable
+    {
+        public static SharedVariable Instance { get; private set; }
+        private readonly ReaderWriterLockSlim m_MapLock;
+        private readonly Dictionary<string, string> m_Map;
+
+        static SharedVariable()
+        {
+            Instance = new SharedVariable();
+        }
+
+        public SharedVariable()
+        {
+            m_MapLock = new ReaderWriterLockSlim();
+            m_Map = new Dictionary<string, string>();
+        }
+
+        public void Clear()
+        {
+            m_MapLock.EnterWriteLock();
+            try
+            {
+                if (m_Map.Count > 0)
+                {
+                    m_Map.Clear();
+                }
+            }
+            finally
+            {
+                m_MapLock.ExitWriteLock();
+            }
+        }
+
+        public bool Remove(string key)
+        {
+            m_MapLock.EnterWriteLock();
+            try
+            {
+                return m_Map.Remove(key);
+            }
+            finally
+            {
+                m_MapLock.ExitWriteLock();
+            }
+        }
+
+        public string Get(string key)
+        {
+            m_MapLock.EnterReadLock();
+            try
+            {
+                if (m_Map.TryGetValue(key, out string value) == true)
+                {
+                    return value;
+                }
+            }
+            finally
+            {
+                m_MapLock.ExitReadLock();
+            }
+
+            return string.Empty;
+        }
+
+        public void Set(string key, string value)
+        {
+            m_MapLock.EnterWriteLock();
+            try
+            {
+                m_Map[key] = value;
+            }
+            finally
+            {
+                m_MapLock.ExitWriteLock();
+            }
+        }
+    }
+}