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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 |
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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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