abstract_allocator.h

// Copyright 2026 The Pigweed Authors
//
// Licensed under the Apache License, Version 2.0 (the "License"); you may not
// use this file except in compliance with the License. You may obtain a copy of
// the License at
//
//     https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations under
// the License.
#pragma once
 
#include <cstddef>
 
#include "pw_allocator/allocator.h"
#include "pw_allocator/capability.h"
 
namespace pw::allocator {
 
 
class AbstractAllocator : public pw::Allocator {
 protected:
  constexpr explicit AbstractAllocator(Capabilities capabilities)
      : pw::Allocator(capabilities) {}
 
  bool DoResize([[maybe_unused]] void* ptr,
                [[maybe_unused]] size_t new_size) override {
    return false;
  }
 
  size_t DoGetAllocated() const override { return size_t(-1); }
 
  std::optional<Fragmentation> DoMeasureFragmentation() const override {
    return std::nullopt;
  }
 
  Result<Layout> DoGetInfo(InfoType, const void*) const override {
    return Status::Unimplemented();
  }
};
 
 
}  // namespace pw::allocator