From f58a0b3a1f657124076b96ba092e1f69e88af263 Mon Sep 17 00:00:00 2001
From: Mike Buland <eichlan@xagasoft.com>
Date: Mon, 18 Jun 2007 20:25:50 +0000
Subject: Added the atom class and did some more client work, it will close the
 socket now when the end has been reached.

---
 src/atom.h | 93 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 93 insertions(+)
 create mode 100644 src/atom.h

(limited to 'src/atom.h')

diff --git a/src/atom.h b/src/atom.h
new file mode 100644
index 0000000..731e08b
--- /dev/null
+++ b/src/atom.h
@@ -0,0 +1,93 @@
+#ifndef ATOM_H
+#define ATOM_H
+
+#include <stdint.h>
+#include <memory>
+#include "bu/exceptions.h"
+
+namespace Bu
+{
+	/**
+	 *
+	 */
+	template <typename t, typename talloc=std::allocator<t> >
+	class Atom
+	{
+	private:
+		typedef struct Atom<t, talloc> MyType;
+
+	public:
+		Atom() :
+			pData( NULL )
+		{
+		}
+
+		virtual ~Atom()
+		{
+			clear();
+		}
+
+		bool isSet() const
+		{
+			return (pData != NULL);
+		}
+
+		void set( const t &val )
+		{
+			clear();
+			pData = ta.allocate( 1 );
+			ta.construct( pData, val );
+		}
+
+		t &get()
+		{
+			if( !pData )
+				throw Bu::ExceptionBase("Not set");
+			return *pData;
+		}
+
+		const t &get() const
+		{
+			if( !pData )
+				throw Bu::ExceptionBase("Not set");
+			return *pData;
+		}
+
+		void clear()
+		{
+			if( pData )
+			{
+				ta.destroy( pData );
+				ta.deallocate( pData, 1 );
+				pData = NULL;
+			}
+		}
+
+		operator const t &() const
+		{
+			if( !pData )
+				throw Bu::ExceptionBase("Not set");
+			return *pData;
+		}
+		
+		operator t &()
+		{
+			if( !pData )
+				throw Bu::ExceptionBase("Not set");
+			return *pData;
+		}
+
+		MyType &operator =( const t &oth )
+		{
+			set( oth );
+
+			return *this;
+		}
+
+	private:
+		t *pData;
+		talloc ta;
+	};
+}
+
+#endif
-- 
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