1 files changed, 59 insertions, 0 deletions
diff --git a/src/debug/inc/stringcopyholder.h b/src/debug/inc/stringcopyholder.h
new file mode 100644
index 0000000000..13a89d87fc
--- /dev/null
+++ b/src/debug/inc/stringcopyholder.h
@@ -0,0 +1,59 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+
+
+#ifndef _StringCopyHolder_h_
+#define _StringCopyHolder_h_
+
+
+//-----------------------------------------------------------------------------
+// Simple holder to keep a copy of a string.
+// Implements IStringHolder so we can pass instances through IDacDbiInterface 
+// and have it fill in the contents.
+//-----------------------------------------------------------------------------
+class StringCopyHolder : public IDacDbiInterface::IStringHolder
+{
+public:
+    StringCopyHolder();
+    
+    // Free the memory allocated for the string contents
+    ~StringCopyHolder();
+
+    // Make a copy of the provided null-terminated unicode string
+    virtual HRESULT AssignCopy(const WCHAR * pCopy);
+
+    // Reset the string to NULL and free memory
+    void Clear();
+
+    // Returns true if the string has been set to a non-NULL value
+    bool IsSet()
+    {
+        return (m_szData != NULL);
+    }
+
+    // Returns true if an empty string is stored.  IsSet must be true to call this.
+    bool IsEmpty()
+    {
+        _ASSERTE(m_szData != NULL);
+        return m_szData[0] == W('\0');
+    }
+
+    // Returns the pointer to the string contents
+    operator WCHAR* () const
+    {
+        return m_szData;
+    }
+
+private:
+    // Disallow copying (to prevent double-free) - no implementation
+    StringCopyHolder( const StringCopyHolder& rhs );
+    StringCopyHolder& operator=( const StringCopyHolder& rhs );
+    
+    WCHAR * m_szData;
+
+};
+
+
+#endif // StringCopyHolder