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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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29 */ | 29 */ |
30 | 30 |
31 #include "core/fileapi/FileReaderSync.h" | 31 #include "core/fileapi/FileReaderSync.h" |
32 | 32 |
33 #include "bindings/core/v8/ExceptionState.h" | 33 #include "bindings/core/v8/ExceptionState.h" |
34 #include "bindings/core/v8/ScriptState.h" | 34 #include "bindings/core/v8/ScriptState.h" |
35 #include "core/dom/DOMArrayBuffer.h" | 35 #include "core/dom/DOMArrayBuffer.h" |
36 #include "core/fileapi/Blob.h" | 36 #include "core/fileapi/Blob.h" |
37 #include "core/fileapi/FileError.h" | 37 #include "core/fileapi/FileError.h" |
38 #include "core/fileapi/FileReaderLoader.h" | 38 #include "core/fileapi/FileReaderLoader.h" |
| 39 #include "platform/Histogram.h" |
39 | 40 |
40 namespace blink { | 41 namespace blink { |
41 | 42 |
42 FileReaderSync::FileReaderSync() {} | 43 namespace { |
| 44 // These values are written to logs. New enum values can be added, but existing |
| 45 // enums must never be renumbered or deleted and reused. |
| 46 enum class WorkerType { |
| 47 OTHER = 0, |
| 48 DEDICATED_WORKER = 1, |
| 49 SHARED_WORKER = 2, |
| 50 SERVICE_WORKER = 3, |
| 51 MAX |
| 52 }; |
| 53 } // namespace |
| 54 |
| 55 FileReaderSync::FileReaderSync(ExecutionContext* context) { |
| 56 WorkerType type = WorkerType::OTHER; |
| 57 if (context->isDedicatedWorkerGlobalScope()) |
| 58 type = WorkerType::DEDICATED_WORKER; |
| 59 else if (context->isSharedWorkerGlobalScope()) |
| 60 type = WorkerType::SHARED_WORKER; |
| 61 else if (context->isServiceWorkerGlobalScope()) |
| 62 type = WorkerType::SERVICE_WORKER; |
| 63 DEFINE_THREAD_SAFE_STATIC_LOCAL( |
| 64 EnumerationHistogram, workerTypeHistogram, |
| 65 new EnumerationHistogram("FileReaderSync.WorkerType", |
| 66 static_cast<int>(WorkerType::MAX))); |
| 67 workerTypeHistogram.count(static_cast<int>(type)); |
| 68 } |
43 | 69 |
44 DOMArrayBuffer* FileReaderSync::readAsArrayBuffer( | 70 DOMArrayBuffer* FileReaderSync::readAsArrayBuffer( |
45 ScriptState* scriptState, | 71 ScriptState* scriptState, |
46 Blob* blob, | 72 Blob* blob, |
47 ExceptionState& exceptionState) { | 73 ExceptionState& exceptionState) { |
48 ASSERT(blob); | 74 ASSERT(blob); |
49 | 75 |
50 std::unique_ptr<FileReaderLoader> loader = | 76 std::unique_ptr<FileReaderLoader> loader = |
51 FileReaderLoader::create(FileReaderLoader::ReadAsArrayBuffer, nullptr); | 77 FileReaderLoader::create(FileReaderLoader::ReadAsArrayBuffer, nullptr); |
52 startLoading(scriptState->getExecutionContext(), *loader, *blob, | 78 startLoading(scriptState->getExecutionContext(), *loader, *blob, |
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97 void FileReaderSync::startLoading(ExecutionContext* executionContext, | 123 void FileReaderSync::startLoading(ExecutionContext* executionContext, |
98 FileReaderLoader& loader, | 124 FileReaderLoader& loader, |
99 const Blob& blob, | 125 const Blob& blob, |
100 ExceptionState& exceptionState) { | 126 ExceptionState& exceptionState) { |
101 loader.start(executionContext, blob.blobDataHandle()); | 127 loader.start(executionContext, blob.blobDataHandle()); |
102 if (loader.errorCode()) | 128 if (loader.errorCode()) |
103 FileError::throwDOMException(exceptionState, loader.errorCode()); | 129 FileError::throwDOMException(exceptionState, loader.errorCode()); |
104 } | 130 } |
105 | 131 |
106 } // namespace blink | 132 } // namespace blink |
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