58 lines
1.8 KiB
C++
58 lines
1.8 KiB
C++
/* 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/core/platform/env.h"
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#include "tensorflow/core/platform/null_file_system.h"
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namespace tensorflow {
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class TestRandomAccessFile : public RandomAccessFile {
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// The file contents is 10 bytes of all A's
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Status Read(uint64 offset, size_t n, StringPiece* result,
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char* scratch) const override {
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Status s;
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for (int i = 0; i < n; ++i) {
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if (offset + i >= 10) {
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n = i;
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s = errors::OutOfRange("EOF");
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break;
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}
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scratch[i] = 'A';
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}
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*result = StringPiece(scratch, n);
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return s;
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}
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};
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class TestFileSystem : public NullFileSystem {
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public:
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Status NewRandomAccessFile(
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const string& fname, TransactionToken* token,
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std::unique_ptr<RandomAccessFile>* result) override {
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result->reset(new TestRandomAccessFile);
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return Status::OK();
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}
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// Always return size of 10
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Status GetFileSize(const string& fname, TransactionToken* token,
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uint64* file_size) override {
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*file_size = 10;
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return Status::OK();
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}
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};
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REGISTER_FILE_SYSTEM("test", TestFileSystem);
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} // namespace tensorflow
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