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49 lines
1.1 KiB
49 lines
1.1 KiB
// Copyright 2016 The Chromium OS Authors. All rights reserved. |
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// Use of this source code is governed by a BSD-style license that can be |
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// found in the LICENSE file. |
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#include "buffer_file.h" |
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#include "bsdiff/bspatch.h" |
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namespace bsdiff { |
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BufferFile::BufferFile(std::unique_ptr<FileInterface> file, size_t size) |
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: file_(std::move(file)) { |
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buffer_.reserve(size); |
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} |
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BufferFile::~BufferFile() { |
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Close(); |
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} |
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bool BufferFile::Read(void* buf, size_t count, size_t* bytes_read) { |
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return false; |
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} |
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bool BufferFile::Write(const void* buf, size_t count, size_t* bytes_written) { |
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const uint8_t* data = static_cast<const uint8_t*>(buf); |
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buffer_.insert(buffer_.end(), data, data + count); |
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*bytes_written = count; |
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return true; |
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} |
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bool BufferFile::Seek(off_t pos) { |
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return false; |
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} |
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bool BufferFile::Close() { |
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if (!WriteAll(file_, buffer_.data(), buffer_.size())) |
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return false; |
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// Prevent writing |buffer_| to |file_| again if Close() is called more than |
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// once. |
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buffer_.clear(); |
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return file_->Close(); |
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} |
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bool BufferFile::GetSize(uint64_t* size) { |
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*size = buffer_.size(); |
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return true; |
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} |
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} // namespace bsdiff
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