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/*
* Copyright (c) 2010 SURFnet bv
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*****************************************************************************
MutexFactory.h
This factory produces OS specific mutex objects
*****************************************************************************/
#ifndef _SOFTHSM_MUTEXFACTORY_H
#define _SOFTHSM_MUTEXFACTORY_H
#include "config.h"
#include "osmutex.h"
#include "cryptoki.h"
#include <memory>
class Mutex
{
public:
// Constructor
Mutex();
// Destructor
virtual ~Mutex();
// Lock the mutex
bool lock();
// Unlock the mutex
void unlock();
private:
// The mutex handle
CK_VOID_PTR handle;
// Is the mutex valid?
bool isValid;
};
class MutexLocker
{
public:
// Constructor
MutexLocker(Mutex* mutex);
// Destructor
virtual ~MutexLocker();
private:
// The mutex to lock
Mutex* mutex;
};
class MutexFactory
{
public:
// Return the one-and-only instance
static MutexFactory* i();
// Destroy the one-and-only instance
static void destroy();
// Destructor
virtual ~MutexFactory();
// Get a mutex instance
Mutex* getMutex();
// Recycle a mutex instance
void recycleMutex(Mutex* mutex);
// Set the function pointers
void setCreateMutex(CK_CREATEMUTEX createMutex);
void setDestroyMutex(CK_DESTROYMUTEX destroyMutex);
void setLockMutex(CK_LOCKMUTEX lockMutex);
void setUnlockMutex(CK_UNLOCKMUTEX unlockMutex);
// Enable/disable mutex handling
void enable();
void disable();
private:
// Constructor
MutexFactory();
// Mutex operations
friend class Mutex;
CK_RV CreateMutex(CK_VOID_PTR_PTR newMutex);
CK_RV DestroyMutex(CK_VOID_PTR mutex);
CK_RV LockMutex(CK_VOID_PTR mutex);
CK_RV UnlockMutex(CK_VOID_PTR mutex);
// The one-and-only instance
static MutexFactory* instance;
// The function pointers
CK_CREATEMUTEX createMutex;
CK_DESTROYMUTEX destroyMutex;
CK_LOCKMUTEX lockMutex;
CK_UNLOCKMUTEX unlockMutex;
// Can we do mutex handling?
bool enabled;
};
#endif // !_SOFTHSM_MUTEXFACTORY_H
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