mirror of
https://github.com/zeromq/libzmq.git
synced 2024-12-14 02:57:47 +01:00
105 lines
3.1 KiB
C++
105 lines
3.1 KiB
C++
/*
|
|
Copyright (c) 2007-2019 Contributors as noted in the AUTHORS file
|
|
|
|
This file is part of libzmq, the ZeroMQ core engine in C++.
|
|
|
|
libzmq is free software; you can redistribute it and/or modify it under
|
|
the terms of the GNU Lesser General Public License (LGPL) as published
|
|
by the Free Software Foundation; either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
As a special exception, the Contributors give you permission to link
|
|
this library with independent modules to produce an executable,
|
|
regardless of the license terms of these independent modules, and to
|
|
copy and distribute the resulting executable under terms of your choice,
|
|
provided that you also meet, for each linked independent module, the
|
|
terms and conditions of the license of that module. An independent
|
|
module is a module which is not derived from or based on this library.
|
|
If you modify this library, you must extend this exception to your
|
|
version of the library.
|
|
|
|
libzmq 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 Lesser General Public
|
|
License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public License
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef __ZMQ_SECURE_ALLOCATOR_HPP_INCLUDED__
|
|
#define __ZMQ_SECURE_ALLOCATOR_HPP_INCLUDED__
|
|
|
|
#include "platform.hpp"
|
|
#include "macros.hpp"
|
|
|
|
#ifdef ZMQ_HAVE_CURVE
|
|
|
|
#if defined(ZMQ_USE_LIBSODIUM)
|
|
#include "sodium.h"
|
|
#endif
|
|
|
|
#include <memory>
|
|
|
|
namespace zmq
|
|
{
|
|
#if defined(ZMQ_USE_LIBSODIUM)
|
|
template <class T> struct secure_allocator_t
|
|
{
|
|
typedef T value_type;
|
|
|
|
secure_allocator_t () ZMQ_DEFAULT;
|
|
|
|
template <class U>
|
|
secure_allocator_t (const secure_allocator_t<U> &) ZMQ_NOEXCEPT
|
|
{
|
|
}
|
|
T *allocate (std::size_t n) ZMQ_NOEXCEPT
|
|
{
|
|
T *res = static_cast<T *> (sodium_allocarray (sizeof (T), n));
|
|
alloc_assert (res);
|
|
return res;
|
|
}
|
|
void deallocate (T *p, std::size_t) ZMQ_NOEXCEPT { sodium_free (p); }
|
|
|
|
// the following is only required with C++98
|
|
// TODO maybe make this conditionally compiled
|
|
typedef T *pointer;
|
|
typedef const T *const_pointer;
|
|
typedef T &reference;
|
|
typedef const T &const_reference;
|
|
typedef std::size_t size_type;
|
|
typedef std::ptrdiff_t difference_type;
|
|
template <class U> struct rebind
|
|
{
|
|
typedef secure_allocator_t<U> other;
|
|
};
|
|
|
|
void construct (pointer p, const_reference val)
|
|
{
|
|
new ((void *) p) value_type (val);
|
|
}
|
|
void destroy (pointer p) { p->~value_type (); }
|
|
size_type max_size () const { return SIZE_MAX; }
|
|
};
|
|
template <class T, class U>
|
|
bool operator== (const secure_allocator_t<T> &, const secure_allocator_t<U> &)
|
|
{
|
|
return true;
|
|
}
|
|
template <class T, class U>
|
|
bool operator!= (const secure_allocator_t<T> &, const secure_allocator_t<U> &)
|
|
{
|
|
return false;
|
|
}
|
|
#else
|
|
template <typename T> struct secure_allocator_t : std::allocator<T>
|
|
{
|
|
};
|
|
#endif
|
|
}
|
|
|
|
#endif
|
|
|
|
#endif
|