2 * Copyright (c) 2011 Sveriges Television AB <info@casparcg.com>
4 * This file is part of CasparCG (www.casparcg.com).
6 * CasparCG is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
11 * CasparCG is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with CasparCG. If not, see <http://www.gnu.org/licenses/>.
19 * Author: Robert Nagy, ronag89@gmail.com
30 void* alloc_page_locked(size_t size);
31 void free_page_locked(void* p);
36 class page_locked_allocator
39 typedef size_t size_type;
40 typedef ptrdiff_t difference_type;
42 typedef const T* const_pointer;
44 typedef const T& const_reference;
47 page_locked_allocator() {}
48 page_locked_allocator(const page_locked_allocator&) {}
50 pointer allocate(size_type n, const void * = 0)
52 return reinterpret_cast<T*>(detail::alloc_page_locked(n));
55 void deallocate(void* p, size_type)
57 detail::free_page_locked(p);
60 pointer address(reference x) const { return &x; }
61 const_pointer address(const_reference x) const { return &x; }
62 page_locked_allocator<T>& operator=(const page_locked_allocator&) { return *this; }
63 void construct(pointer p, const T& val) { new ((T*) p) T(val); }
64 void destroy(pointer p) { p->~T(); }
66 size_type max_size() const { return size_t(-1); }
69 struct rebind { typedef page_locked_allocator<U> other; };
72 page_locked_allocator(const page_locked_allocator<U>&) {}
75 page_locked_allocator& operator=(const page_locked_allocator<U>&) { return *this; }