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/* Copyright 2015 Google Inc. All Rights Reserved.
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
http://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.
==============================================================================*/
#ifndef TENSORFLOW_COMMON_RUNTIME_GPU_DEVICE_CONTEXT_H_
#define TENSORFLOW_COMMON_RUNTIME_GPU_DEVICE_CONTEXT_H_
#include "tensorflow/core/common_runtime/device.h"
#include "tensorflow/core/framework/device_base.h"
namespace perftools {
namespace gputools {
class Stream;
} // namespace gputools
} // namespace perftools
namespace tensorflow {
namespace gpu = ::perftools::gputools;
class GPUDeviceContext : public DeviceContext {
public:
GPUDeviceContext(int stream_id, gpu::Stream* stream)
: stream_id_(stream_id), stream_(stream) {}
~GPUDeviceContext() override {}
gpu::Stream* stream() const override { return stream_; }
int stream_id() const { return stream_id_; }
void CopyCPUTensorToDevice(const Tensor* cpu_tensor, Device* device,
Tensor* device_tensor,
StatusCallback done) const override;
void CopyDeviceTensorToCPU(const Tensor* device_tensor,
const string& edge_name, Device* device,
Tensor* cpu_tensor, StatusCallback done) override;
void MaintainLifetimeOnStream(
const Tensor* t, perftools::gputools::Stream* stream) const override {}
private:
int stream_id_;
gpu::Stream* stream_;
};
} // namespace tensorflow
#endif // TENSORFLOW_COMMON_RUNTIME_GPU_DEVICE_CONTEXT_H_
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