From ee8174b0dd72204a38a3818686623edd87d5e10e Mon Sep 17 00:00:00 2001
From: Mike Buland <eichlan@xagasoft.com>
Date: Tue, 26 Feb 2008 06:53:45 +0000
Subject: Thought this may be handy.  It should have more functions and things
 later, but it's basically an uber-simple counter class that's thread-safe!

---
 src/itocounter.cpp |  1 +
 src/itocounter.h   | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 51 insertions(+)
 create mode 100644 src/itocounter.cpp
 create mode 100644 src/itocounter.h

(limited to 'src')

diff --git a/src/itocounter.cpp b/src/itocounter.cpp
new file mode 100644
index 0000000..35298a9
--- /dev/null
+++ b/src/itocounter.cpp
@@ -0,0 +1 @@
+#include "bu/itocounter.h"
diff --git a/src/itocounter.h b/src/itocounter.h
new file mode 100644
index 0000000..58abe07
--- /dev/null
+++ b/src/itocounter.h
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2007-2008 Xagasoft, All rights reserved.
+ *
+ * This file is part of the libbu++ library and is released under the
+ * terms of the license contained in the file LICENSE.
+ */
+
+#ifndef BU_ITO_COUNTER_H
+#define BU_ITO_COUNTER_H
+
+#include "itomutex.h"
+
+namespace Bu
+{
+	/**
+	 * A simple thread-safe counter class.  This is handy for assigning unique
+	 * IDs to objects that are being created in different threads.
+	 *@author Mike Buland
+	 *@ingroup Threading Containers
+	 */
+	template <class T>
+	class ItoCounter
+	{
+	public:
+		ItoCounter() :
+			tCounter( 0 )
+		{
+		}
+		
+		virtual ~ItoCounter()
+		{
+		}
+
+		T next()
+		{
+			mOperate.lock();
+			T tRet = tCounter;
+			tCounter++;
+			mOperate.unlock();
+
+			return tRet;
+		}
+
+	private:
+		T tCounter;				/**< The counter itself. */
+		ItoMutex mOperate;	/**< The master mutex, used on all operations. */
+	};
+}
+
+#endif
-- 
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