1 /* Copyright (C) 2010 Wildfire Games.
2 *
3 * Permission is hereby granted, free of charge, to any person obtaining
4 * a copy of this software and associated documentation files (the
5 * "Software"), to deal in the Software without restriction, including
6 * without limitation the rights to use, copy, modify, merge, publish,
7 * distribute, sublicense, and/or sell copies of the Software, and to
8 * permit persons to whom the Software is furnished to do so, subject to
9 * the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included
12 * in all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
15 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
16 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
17 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
18 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
19 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
20 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
21 */
22
23 #ifndef INCLUDED_ALLOCATORS_SHARED_PTR
24 #define INCLUDED_ALLOCATORS_SHARED_PTR
25
26 #include "lib/alignment.h"
27 #include "lib/sysdep/rtl.h" // rtl_AllocateAligned
28
29 struct DummyDeleter
30 {
31 template<class T>
operatorDummyDeleter32 void operator()(T*)
33 {
34 }
35 };
36
37 template<class T>
DummySharedPtr(T * ptr)38 inline shared_ptr<T> DummySharedPtr(T* ptr)
39 {
40 return shared_ptr<T>(ptr, DummyDeleter());
41 }
42
43 struct ArrayDeleter
44 {
45 template<class T>
operatorArrayDeleter46 void operator()(T* p)
47 {
48 delete[] p;
49 }
50 };
51
52 // (note: uses CheckedArrayDeleter)
53 LIB_API shared_ptr<u8> Allocate(size_t size);
54
55
56 struct AlignedDeleter
57 {
58 template<class T>
operatorAlignedDeleter59 void operator()(T* t)
60 {
61 rtl_FreeAligned(t);
62 }
63 };
64
65 template<class T>
66 static inline Status AllocateAligned(shared_ptr<T>& p, size_t size, size_t alignment = cacheLineSize)
67 {
68 void* mem = rtl_AllocateAligned(size, alignment);
69 if(!mem)
70 WARN_RETURN(ERR::NO_MEM);
71 p.reset((T*)mem, AlignedDeleter());
72 return INFO::OK;
73 }
74
75 #endif // #ifndef INCLUDED_ALLOCATORS_SHARED_PTR
76