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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.
*/
/*****************************************************************************
SecureMemoryRegistry.h
Implements a singleton class that keeps track of all securely allocated
memory. This registry can be used to wipe securely allocated memory in case
of a fatal exception
*****************************************************************************/
#ifndef _SOFTHSM_V2_SECUREMEMORYREGISTRY_H
#define _SOFTHSM_V2_SECUREMEMORYREGISTRY_H
#include <stdlib.h>
#include <map>
#include <memory>
#include "MutexFactory.h"
class SecureMemoryRegistry
{
public:
SecureMemoryRegistry();
virtual ~SecureMemoryRegistry();
static SecureMemoryRegistry* i();
static void reset();
void add(void* pointer, size_t blocksize);
size_t remove(void* pointer);
void wipe();
private:
#ifdef HAVE_CXX11
static std::unique_ptr<SecureMemoryRegistry> instance;
#else
static std::auto_ptr<SecureMemoryRegistry> instance;
#endif
std::map<void*, size_t> registry;
Mutex* SecMemRegistryMutex;
};
#endif // !_SOFTHSM_V2_SECUREMEMORYREGISTRY_H
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