sharpkml/KmlFormatter-lock-format.cs.patch at master · LiveEarthSoftware/sharpkml · GitHub

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Index: SharpKml/Base/KmlFormatter.cs
===================================================================
--- SharpKml/Base/KmlFormatter.cs	(revision 44542)
+++ SharpKml/Base/KmlFormatter.cs	(working copy)
@@ -9,6 +9,7 @@
     internal class KmlFormatter : ICustomFormatter, IFormatProvider
     {
         private static readonly KmlFormatter SingleInstance = new KmlFormatter();
+        private object _formatLock;

         private KmlFormatter()
         {
@@ -43,22 +44,25 @@
         {
             if (format == null)
             {
-                var convertible = arg as IConvertible;
-                if (convertible != null)
+                lock (_formatLock)
                 {
-                    switch (convertible.GetTypeCode())
+                    var convertible = arg as IConvertible;
+                    if (convertible != null)
                     {
-                        case TypeCode.Boolean:
-                            return GetBool((bool)arg);
+                        switch (convertible.GetTypeCode())
+                        {
+                            case TypeCode.Boolean:
+                                return GetBool((bool) arg);

-                        case TypeCode.DateTime:
-                            return GetDateTime((DateTime)arg);
+                            case TypeCode.DateTime:
+                                return GetDateTime((DateTime) arg);

-                        case TypeCode.Double:
-                            return GetFloatingPoint((double)arg);
+                            case TypeCode.Double:
+                                return GetFloatingPoint((double) arg);

-                        case TypeCode.Single:
-                            return GetFloatingPoint((float)arg);
+                            case TypeCode.Single:
+                                return GetFloatingPoint((float) arg);
+                        }
                     }
                 }
             }