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70 lines
2.5 KiB
70 lines
2.5 KiB
// Copyright (c) 2018 PaddlePaddle Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "paddle/fluid/memory/allocation/naive_managed_allocator.h"
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namespace paddle {
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namespace memory {
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namespace allocation {
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NaiveManagedAllocator::NaiveManagedAllocator(
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std::unique_ptr<Allocator> &&allocator) {
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auto *underlying_allocator =
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dynamic_cast<UnmanagedAllocator *>(allocator.get());
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PADDLE_ENFORCE_NOT_NULL(underlying_allocator);
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allocator.release();
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Init(std::unique_ptr<UnmanagedAllocator>(underlying_allocator));
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}
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NaiveManagedAllocator::NaiveManagedAllocator(
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std::unique_ptr<UnmanagedAllocator> &&allocator) {
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Init(std::move(allocator));
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}
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void NaiveManagedAllocator::Init(
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std::unique_ptr<UnmanagedAllocator> &&allocator) {
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underlying_allocator_ = std::move(allocator);
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}
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bool NaiveManagedAllocator::IsAllocThreadSafe() const {
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return underlying_allocator_->IsAllocThreadSafe();
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}
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std::unique_ptr<Allocation> NaiveManagedAllocator::Allocate(size_t size,
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Attr attr) {
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std::unique_ptr<Allocation> allocation =
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underlying_allocator_->Allocate(size, attr);
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return std::unique_ptr<Allocation>(
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new NaiveManagedAllocation(std::move(allocation), shared_from_this()));
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}
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std::shared_ptr<Allocation> NaiveManagedAllocator::AllocateShared(size_t size,
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Attr attr) {
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std::unique_ptr<Allocation> allocation =
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underlying_allocator_->Allocate(size, attr);
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return std::shared_ptr<Allocation>(
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new NaiveManagedAllocation(std::move(allocation), shared_from_this()));
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}
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NaiveManagedAllocation::~NaiveManagedAllocation() {
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auto allocator = allocator_.lock();
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if (UNLIKELY(allocator == nullptr)) {
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// the allocator is destructed before allocations.
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// do nothing.
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return;
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}
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// invoke Free
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allocator->UnderlyingAllocator().FreeUniquePtr(
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std::move(underlying_allocation_));
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}
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} // namespace allocation
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} // namespace memory
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} // namespace paddle
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