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/* STL allocator for secmem
* Copyright (C) 2008 Marc Mutz <marc@kdab.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __SECMEM_SECMEMPP_H__
#define __SECMEM_SECMEMPP_H__
#include "secmem/memory.h"
#include <cstddef>
namespace secmem {
template <typename T>
class alloc {
public:
// type definitions:
typedef size_t size_type;
typedef ptrdiff_t difference_type;
typedef T* pointer;
typedef const T* const_pointer;
typedef T& reference;
typedef const T& const_reference;
typedef T value_type;
// rebind
template <typename U>
struct rebind {
typedef alloc<U> other;
};
// address
pointer address( reference value ) const {
return &value;
}
const_pointer address( const_reference value ) const {
return &value;
}
// (trivial) ctors and dtors
alloc() {}
alloc( const alloc & ) {}
template <typename U> alloc( const alloc<U> & ) {}
// copy ctor is ok
~alloc() {}
// de/allocation
size_type max_size() const {
return secmem_get_max_size();
}
pointer allocate( size_type n, void * =0 ) {
return static_cast<pointer>( secmem_malloc( n * sizeof(T) ) );
}
void deallocate( pointer p, size_type ) {
secmem_free( p );
}
// de/construct
void construct( pointer p, const T & value ) {
void * loc = p;
new (loc)T(value);
}
void destruct( pointer p ) {
p->~T();
}
};
// equality comparison
template <typename T1,typename T2>
bool operator==( const alloc<T1> &, const alloc<T2> & ) { return true; }
template <typename T1, typename T2>
bool operator!=( const alloc<T1> &, const alloc<T2> & ) { return false; }
}
#endif /* __SECMEM_SECMEMPP_H__ */
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