userlibandfileserver/fileserver/sfile/sf_pool.h
author hgs
Mon, 01 Nov 2010 20:11:36 +0000
changeset 299 b5a01337d018
parent 0 a41df078684a
permissions -rw-r--r--
201043_04
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
0
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
     1
// Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
     2
// All rights reserved.
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
     3
// This component and the accompanying materials are made available
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
     4
// under the terms of the License "Eclipse Public License v1.0"
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
     5
// which accompanies this distribution, and is available
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
     6
// at the URL "http://www.eclipse.org/legal/epl-v10.html".
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
     7
//
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
     8
// Initial Contributors:
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
     9
// Nokia Corporation - initial contribution.
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
    10
//
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
    11
// Contributors:
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
    12
//
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
    13
// Description:
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
    14
// f32\sfile\sf_pool.h
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
    15
// 
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
    16
//
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
    17
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
    18
#include "sf_std.h"
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
    19
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
    20
#ifndef SF_POOL_H_
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
    21
#define SF_POOL_H_
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
    22
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
    23
/**
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
    24
 * @internalTechnology
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
    25
 */
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
    26
template <class T>
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
    27
class CFsPool
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
    28
	{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
    29
public:
299
b5a01337d018 201043_04
hgs
parents: 0
diff changeset
    30
   
b5a01337d018 201043_04
hgs
parents: 0
diff changeset
    31
	static CFsPool<T>* New(TInt aPoolSize,T*(*aNewFunction)());
0
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
    32
	~CFsPool();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
    33
	
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
    34
	/*
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
    35
	 * Allocate returns a pointer of class T.
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
    36
	 * The pointer returned is removed from the pool.
299
b5a01337d018 201043_04
hgs
parents: 0
diff changeset
    37
	 * WAITs when the pool is empty.
0
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
    38
	 */
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
    39
	T* Allocate();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
    40
	
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
    41
	/*
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
    42
	 * Following a call to Allocate,
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
    43
	 * Free teturns an object-pointer of type T to the pool.
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
    44
	 */
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
    45
	void Free(T* aBlock);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
    46
private:
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
    47
	CFsPool();
299
b5a01337d018 201043_04
hgs
parents: 0
diff changeset
    48
	TInt Construct(TInt aPoolSize,T*(*aNewFunction)());
0
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
    49
	
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
    50
	void Lock();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
    51
	void Unlock();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
    52
	RSemaphore iPoolLock;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
    53
		
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
    54
	RPointerArray<T> iFreeList;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
    55
	};
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
    56
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
    57
#endif /* SF_POOL_H_ */