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| 1 /* | 1 /* |
| 2 * Copyright (C) 2010 Google Inc. All rights reserved. | 2 * Copyright (C) 2010 Google Inc. All rights reserved. |
| 3 * | 3 * |
| 4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
| 5 * modification, are permitted provided that the following conditions are | 5 * modification, are permitted provided that the following conditions are |
| 6 * met: | 6 * met: |
| 7 * | 7 * |
| 8 * * Redistributions of source code must retain the above copyright | 8 * * Redistributions of source code must retain the above copyright |
| 9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
| 10 * * Redistributions in binary form must reproduce the above | 10 * * Redistributions in binary form must reproduce the above |
| (...skipping 24 matching lines...) Expand all Loading... |
| 35 #include "core/fileapi/FileError.h" | 35 #include "core/fileapi/FileError.h" |
| 36 #include "public/platform/WebFileWriter.h" | 36 #include "public/platform/WebFileWriter.h" |
| 37 #include <memory> | 37 #include <memory> |
| 38 | 38 |
| 39 namespace blink { | 39 namespace blink { |
| 40 | 40 |
| 41 FileWriterBase::~FileWriterBase() {} | 41 FileWriterBase::~FileWriterBase() {} |
| 42 | 42 |
| 43 void FileWriterBase::Initialize(std::unique_ptr<WebFileWriter> writer, | 43 void FileWriterBase::Initialize(std::unique_ptr<WebFileWriter> writer, |
| 44 long long length) { | 44 long long length) { |
| 45 ASSERT(!writer_); | 45 DCHECK(!writer_); |
| 46 ASSERT(length >= 0); | 46 DCHECK_GE(length, 0); |
| 47 writer_ = std::move(writer); | 47 writer_ = std::move(writer); |
| 48 length_ = length; | 48 length_ = length; |
| 49 } | 49 } |
| 50 | 50 |
| 51 FileWriterBase::FileWriterBase() : position_(0) {} | 51 FileWriterBase::FileWriterBase() : position_(0) {} |
| 52 | 52 |
| 53 void FileWriterBase::SeekInternal(long long position) { | 53 void FileWriterBase::SeekInternal(long long position) { |
| 54 if (position > length_) | 54 if (position > length_) |
| 55 position = length_; | 55 position = length_; |
| 56 else if (position < 0) | 56 else if (position < 0) |
| 57 position = length_ + position; | 57 position = length_ + position; |
| 58 if (position < 0) | 58 if (position < 0) |
| 59 position = 0; | 59 position = 0; |
| 60 position_ = position; | 60 position_ = position; |
| 61 } | 61 } |
| 62 | 62 |
| 63 void FileWriterBase::ResetWriter() { | 63 void FileWriterBase::ResetWriter() { |
| 64 writer_ = nullptr; | 64 writer_ = nullptr; |
| 65 } | 65 } |
| 66 | 66 |
| 67 void FileWriterBase::Dispose() { | 67 void FileWriterBase::Dispose() { |
| 68 // Need to explicitly destroy m_writer in pre-finalizer, because otherwise it | 68 // Need to explicitly destroy m_writer in pre-finalizer, because otherwise it |
| 69 // may attempt to call methods on the FileWriter before we are finalized. | 69 // may attempt to call methods on the FileWriter before we are finalized. |
| 70 ResetWriter(); | 70 ResetWriter(); |
| 71 } | 71 } |
| 72 | 72 |
| 73 } // namespace blink | 73 } // namespace blink |
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