1 /* -*- mesa-c++ -*- 2 * 3 * Copyright (c) 2022 Collabora LTD 4 * 5 * Author: Gert Wollny <gert.wollny@collabora.com> 6 * 7 * Permission is hereby granted, free of charge, to any person obtaining a 8 * copy of this software and associated documentation files (the "Software"), 9 * to deal in the Software without restriction, including without limitation 10 * on the rights to use, copy, modify, merge, publish, distribute, sub 11 * license, and/or sell copies of the Software, and to permit persons to whom 12 * the Software is furnished to do so, subject to the following conditions: 13 * 14 * The above copyright notice and this permission notice (including the next 15 * paragraph) shall be included in all copies or substantial portions of the 16 * Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 20 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL 21 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, 22 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR 23 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE 24 * USE OR OTHER DEALINGS IN THE SOFTWARE. 25 */ 26 27 #ifndef MEMORYPOOL_H 28 #define MEMORYPOOL_H 29 30 #include <cstdlib> 31 #include <memory> 32 #include <stack> 33 34 #define R600_POINTER_TYPE(X) X * 35 36 namespace r600 { 37 38 void init_pool(); 39 void release_pool(); 40 41 class Allocate 42 { 43 public: 44 void * operator new(size_t size); 45 void operator delete (void *p, size_t size); 46 }; 47 48 class MemoryPool { 49 public: 50 static MemoryPool& instance(); 51 static void release_all(); 52 53 void free(); 54 void initialize(); 55 56 void *allocate(size_t size); 57 void *allocate(size_t size, size_t align); 58 59 private: 60 MemoryPool() noexcept; 61 62 struct MemoryPoolImpl* impl; 63 }; 64 65 template <typename T> 66 struct Allocator { 67 using value_type = T; 68 69 Allocator() = default; 70 Allocator(const Allocator& other) = default; 71 72 template <typename U> AllocatorAllocator73 Allocator(const Allocator<U>& other) {(void)other;} 74 allocateAllocator75 T *allocate(size_t n) { 76 return (T *)MemoryPool::instance().allocate(n * sizeof(T), alignof(T)); 77 } 78 deallocateAllocator79 void deallocate(void *p, size_t n) { 80 (void)p; (void)n; 81 //MemoryPool::instance().deallocate(p, n * sizeof(T), alignof(T)); 82 } 83 84 friend bool operator == (const Allocator<T>& lhs, const Allocator<T>& rhs) { 85 (void)lhs; (void)rhs; return true;} 86 }; 87 88 } 89 90 #endif // MEMORYPOOL_H 91