63 lines
2.1 KiB
C++
63 lines
2.1 KiB
C++
/* Copyright 2017 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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#ifndef TENSORFLOW_COMPILER_XLA_TEXT_LITERAL_READER_H_
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#define TENSORFLOW_COMPILER_XLA_TEXT_LITERAL_READER_H_
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#include <memory>
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#include "absl/strings/string_view.h"
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#include "tensorflow/compiler/xla/literal.h"
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#include "tensorflow/compiler/xla/statusor.h"
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#include "tensorflow/compiler/xla/types.h"
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#include "tensorflow/compiler/xla/xla_data.pb.h"
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#include "tensorflow/core/platform/env.h"
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#include "tensorflow/core/platform/macros.h"
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namespace xla {
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// Reads a textual literal from a file path. The format of the file must be:
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//
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// f32[1,2,3,4]
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// (0, 0, 0, 0): 1.234
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// (0, 0, 0, 1): 0xf00p-2
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// ...
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//
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// Note that for floating values the hex output (as in the second value above)
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// will more precisely convey the exact values.
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class TextLiteralReader {
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public:
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// See class comment -- reads a file in its entirety (there must be only one
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// literal in the text file path provided).
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static StatusOr<Literal> ReadPath(absl::string_view path);
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private:
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// Ownership of file is transferred.
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explicit TextLiteralReader(tensorflow::RandomAccessFile* file);
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// Parses a shape string on the first line, followed by lines of values to the
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// end of the file.
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StatusOr<Literal> ReadAllLines();
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// Owns the file being read
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std::unique_ptr<tensorflow::RandomAccessFile> file_;
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TF_DISALLOW_COPY_AND_ASSIGN(TextLiteralReader);
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};
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} // namespace xla
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#endif // TENSORFLOW_COMPILER_XLA_TEXT_LITERAL_READER_H_
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