1 // Copyright 2024 The Pigweed Authors 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); you may not 4 // use this file except in compliance with the License. You may obtain a copy of 5 // the License at 6 // 7 // https://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, WITHOUT 11 // WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the 12 // License for the specific language governing permissions and limitations under 13 // the License. 14 #pragma once 15 16 #include "pw_allocator/allocator.h" 17 #include "pw_allocator/layout.h" 18 #include "pw_allocator/pool.h" 19 #include "pw_status/status.h" 20 21 namespace pw::allocator { 22 23 /// Implementation of ``Pool`` that satisfies requests using an ``Allocator``. 24 class AllocatorAsPool : public Pool { 25 public: 26 /// Construct a ``Pool`` from an ``Allocator``. 27 /// 28 /// @param allocator The allocator used to create fixed-size allocations. 29 /// @param layout The size and alignment of the memory to be returned 30 /// from this pool. 31 AllocatorAsPool(Allocator& allocator, const Layout& layout); 32 33 private: 34 /// @copydoc Pool::Allocate 35 void* DoAllocate() override; 36 37 /// @copydoc Deallocator::Deallocate 38 void DoDeallocate(void* ptr) override; 39 40 /// @copydoc Deallocator::GetInfo 41 Result<Layout> DoGetInfo(InfoType info_type, const void* ptr) const override; 42 43 Allocator& allocator_; 44 }; 45 46 } // namespace pw::allocator 47