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Diffstat (limited to 'tensorflow/compiler/xla/service/versioned_computation_handle.h')
-rw-r--r-- | tensorflow/compiler/xla/service/versioned_computation_handle.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/tensorflow/compiler/xla/service/versioned_computation_handle.h b/tensorflow/compiler/xla/service/versioned_computation_handle.h new file mode 100644 index 0000000000..03bee3d4a5 --- /dev/null +++ b/tensorflow/compiler/xla/service/versioned_computation_handle.h @@ -0,0 +1,48 @@ +/* Copyright 2017 The TensorFlow Authors. 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_COMPILER_XLA_SERVICE_VERSIONED_COMPUTATION_HANDLE_H_ +#define TENSORFLOW_COMPILER_XLA_SERVICE_VERSIONED_COMPUTATION_HANDLE_H_ + +#include "tensorflow/compiler/xla/xla_data.pb.h" +#include "tensorflow/core/platform/types.h" + +namespace xla { + +// A data structure encapsulating a ComputationHandle and version value of that +// computation. This object is used to unambiguously refer to a particular +// computation in the service. +struct VersionedComputationHandle { + // A version value unambiguously specifying the state of the computation at a + // particular point in time as it is being built. This value is the + // ComputationDataHandle of the current root instruction. + using Version = int64; + + ComputationHandle handle; + Version version; + bool operator==(const VersionedComputationHandle& other) const { + return (handle.handle() == other.handle.handle()) && + (version == other.version); + } + bool operator<(const VersionedComputationHandle& other) const { + return ((handle.handle() < other.handle.handle()) || + ((handle.handle() == other.handle.handle()) && + (version < other.version))); + } +}; + +} // namespace xla + +#endif // TENSORFLOW_COMPILER_XLA_SERVICE_VERSIONED_COMPUTATION_HANDLE_H_ |