userlibandfileserver/fileserver/sfile/sf_pool.h
changeset 0 a41df078684a
child 299 b5a01337d018
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/userlibandfileserver/fileserver/sfile/sf_pool.h	Mon Oct 19 15:55:17 2009 +0100
@@ -0,0 +1,56 @@
+// Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of the License "Eclipse Public License v1.0"
+// which accompanies this distribution, and is available
+// at the URL "http://www.eclipse.org/legal/epl-v10.html".
+//
+// Initial Contributors:
+// Nokia Corporation - initial contribution.
+//
+// Contributors:
+//
+// Description:
+// f32\sfile\sf_pool.h
+// 
+//
+
+#include "sf_std.h"
+
+#ifndef SF_POOL_H_
+#define SF_POOL_H_
+
+/**
+ * @internalTechnology
+ */
+template <class T>
+class CFsPool
+	{
+public:
+	static CFsPool<T>* New(TInt aPoolSize);
+	~CFsPool();
+	
+	/*
+	 * Allocate returns a pointer of class T.
+	 * The pointer returned is removed from the pool.
+	 * When the pool is empty this function will wait.
+	 */
+	T* Allocate();
+	
+	/*
+	 * Following a call to Allocate,
+	 * Free teturns an object-pointer of type T to the pool.
+	 */
+	void Free(T* aBlock);
+private:
+	CFsPool();
+	TInt Construct(TInt aPoolSize);
+	
+	void Lock();
+	void Unlock();
+	RSemaphore iPoolLock;
+		
+	RPointerArray<T> iFreeList;
+	};
+
+#endif /* SF_POOL_H_ */