RAUL  0.8.0
SharedPtr.hpp
1 /* A Reference Counting Smart Pointer.
2  * Copyright (C) 2007-2009 David Robillard <http://drobilla.net>
3  *
4  * This is free software; you can redistribute it and/or modify it under the
5  * terms of the GNU General Public License as published by the Free Software
6  * Foundation; either version 2 of the License, or (at your option) any later
7  * version.
8  *
9  * This file is distributed in the hope that it will be useful, but WITHOUT ANY
10  * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
11  * FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.
12  *
13  * You should have received a copy of the GNU General Public License along
14  * with this program; if not, write to the Free Software Foundation, Inc.,
15  * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
16  */
17 
18 #ifndef RAUL_SHARED_PTR_HPP
19 #define RAUL_SHARED_PTR_HPP
20 
21 #ifdef BOOST_SP_ENABLE_DEBUG_HOOKS
22 #include <algorithm>
23 #include <cassert>
24 #include <cstddef>
25 #include <iostream>
26 #include <set>
27 
28 static std::set<void*> shared_ptr_counters;
29 
30 // Use debug hooks to ensure 2 shared_ptrs never point to the same thing
31 namespace boost {
32  inline void sp_scalar_constructor_hook(void* px, std::size_t size, void* pn) {
33  assert(shared_ptr_counters.find(px) == shared_ptr_counters.end());
34  shared_ptr_counters.push_back(px);
35  }
36 
37  inline void sp_scalar_destructor_hook(void* px, std::size_t size, void* pn) {
38  shared_ptr_counters.remove(px);
39  }
40 }
41 #endif // BOOST_SP_ENABLE_DEBUG_HOOKS
42 
43 
44 #include <boost/shared_ptr.hpp>
45 
46 #ifdef BOOST_AC_USE_PTHREADS
47 #error "Boost is using mutexes for shared_ptr reference counting."
48 #error "This is VERY slow. Please report your platform to d@drobilla.net"
49 #endif
50 
51 template <typename T> void NullDeleter(T* ptr) {}
52 
53 #define SharedPtr boost::shared_ptr
54 #define PtrCast boost::dynamic_pointer_cast
55 
56 #endif // RAUL_SHARED_PTR_HPP
57