/* Copyright 2015 The TensorFlow Authors. All Rights Reserved.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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==============================================================================*/
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#include "tensorflow/stream_executor/temporary_device_memory.h"
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#include "tensorflow/stream_executor/stream.h"
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namespace stream_executor {
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TemporaryDeviceMemoryBase::~TemporaryDeviceMemoryBase() {
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parent_->temporary_memory_manager()->MarkFinalized(device_memory_,
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allocation_generation_,
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/*must_exist=*/false);
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}
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DeviceMemoryBase* TemporaryDeviceMemoryBase::mutable_device_memory() {
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DCHECK(!IsFinalized())
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<< "should not access device memory after finalization";
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return &device_memory_;
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}
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const DeviceMemoryBase& TemporaryDeviceMemoryBase::device_memory() const {
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DCHECK(!IsFinalized())
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<< "should not access device memory after finalization";
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return device_memory_;
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}
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void TemporaryDeviceMemoryBase::Finalize() {
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DCHECK(!IsFinalized()) << "should not finalize more than once";
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parent_->temporary_memory_manager()->MarkFinalized(device_memory_,
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allocation_generation_,
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/*must_exist=*/true);
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}
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bool TemporaryDeviceMemoryBase::IsFinalized() const {
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return parent_->temporary_memory_manager()->IsFinalized(
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device_memory_, allocation_generation_);
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}
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bool TemporaryDeviceMemoryBase::IsAllocated() const {
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return parent_->temporary_memory_manager()->HasAllocated(
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device_memory_, allocation_generation_);
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}
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TemporaryDeviceMemoryBase::TemporaryDeviceMemoryBase(
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Stream* parent, DeviceMemoryBase device_memory,
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uint64 allocation_generation)
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: device_memory_(device_memory),
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allocation_generation_(allocation_generation),
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parent_(parent) {
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DCHECK(IsAllocated());
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}
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} // namespace stream_executor
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