added exceptron log target.

Exceptron.Client/fastJSON/SafeDictionary.cs

@@ -0,0 +1,36 @@
+//http://fastjson.codeplex.com/
+//http://fastjson.codeplex.com/license
+
+using System.Collections.Generic;
+
+namespace Exceptron.Client.fastJSON
+{
+    internal class SafeDictionary<TKey, TValue>
+    {
+        private readonly object _Padlock = new object();
+        private readonly Dictionary<TKey, TValue> _Dictionary = new Dictionary<TKey, TValue>();
+
+
+        internal bool TryGetValue(TKey key, out TValue value)
+        {
+            return _Dictionary.TryGetValue(key, out value);
+        }
+
+        internal TValue this[TKey key]
+        {
+            get
+            {
+                return _Dictionary[key];
+            }
+        }
+
+        internal void Add(TKey key, TValue value)
+        {
+            lock (_Padlock)
+            {
+                if (_Dictionary.ContainsKey(key) == false)
+                    _Dictionary.Add(key, value);
+            }
+        }
+    }
+}