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/* Copyright (C) 2009 Wildfire Games.
* This file is part of 0 A.D.
*
* 0 A.D. 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.
*
* 0 A.D. 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 0 A.D. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef INCLUDED_SHAREDMEMORY
#define INCLUDED_SHAREDMEMORY
// we want to use placement new without grief
// (Duplicated in Shareable.h)
#undef new
namespace AtlasMessage
{
// Shared pointers need to be allocated and freed from the same heap.
// So, both sides of the Shareable interface should set these function pointers
// to point to the same function. (The game will have to dynamically load them
// from the DLL.)
extern void* (*ShareableMallocFptr) (size_t n);
extern void (*ShareableFreeFptr) (void* p);
// Implement shared new/delete on top of those
template<typename T> T* ShareableNew()
{
T* p = (T*)ShareableMallocFptr(sizeof(T));
new (p) T;
return p;
}
template<typename T> void ShareableDelete(T* p)
{
p->~T();
ShareableFreeFptr(p);
}
// Or maybe we want to use a non-default constructor
#define SHAREABLE_NEW(T, data) (new ( (T*)AtlasMessage::ShareableMallocFptr(sizeof(T)) ) T data)
}
#endif // INCLUDED_SHAREDMEMORY
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