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| 1 // Copyright 2015 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #ifndef ReadableStreamDataConsumerHandle_h | |
| 6 #define ReadableStreamDataConsumerHandle_h | |
| 7 | |
| 8 #include "bindings/core/v8/ScriptValue.h" | |
| 9 #include "modules/ModulesExport.h" | |
| 10 #include "modules/fetch/FetchDataConsumerHandle.h" | |
| 11 #include "wtf/Forward.h" | |
| 12 #include "wtf/PtrUtil.h" | |
| 13 #include "wtf/RefPtr.h" | |
| 14 #include <memory> | |
| 15 | |
| 16 namespace blink { | |
| 17 | |
| 18 class ScriptState; | |
| 19 | |
| 20 // This class is a FetchDataConsumerHandle pulling bytes from ReadableStream | |
| 21 // implemented with V8 Extras. | |
| 22 // The stream will be immediately locked by the handle and will never be | |
| 23 // released. | |
| 24 // | |
| 25 // The ReadableStreamReader handle held in a ReadableStreamDataConsumerHandle | |
| 26 // is weak. A user must guarantee that the ReadableStreamReader object is kept | |
| 27 // alive appropriately. | |
| 28 // TODO(yhirano): CURRENTLY THIS HANDLE SUPPORTS READING ONLY FROM THE THREAD ON | |
| 29 // WHICH IT IS CREATED. FIX THIS. | |
| 30 class MODULES_EXPORT ReadableStreamDataConsumerHandle final | |
| 31 : public FetchDataConsumerHandle { | |
| 32 WTF_MAKE_NONCOPYABLE(ReadableStreamDataConsumerHandle); | |
| 33 | |
| 34 public: | |
| 35 static std::unique_ptr<ReadableStreamDataConsumerHandle> create( | |
| 36 ScriptState* scriptState, | |
| 37 ScriptValue streamReader) { | |
| 38 return wrapUnique( | |
| 39 new ReadableStreamDataConsumerHandle(scriptState, streamReader)); | |
| 40 } | |
| 41 ~ReadableStreamDataConsumerHandle() override; | |
| 42 | |
| 43 std::unique_ptr<Reader> obtainFetchDataReader(Client*) override; | |
| 44 | |
| 45 private: | |
| 46 class ReadingContext; | |
| 47 ReadableStreamDataConsumerHandle(ScriptState*, ScriptValue streamReader); | |
| 48 const char* debugName() const override { | |
| 49 return "ReadableStreamDataConsumerHandle"; | |
| 50 } | |
| 51 | |
| 52 RefPtr<ReadingContext> m_readingContext; | |
| 53 }; | |
| 54 | |
| 55 } // namespace blink | |
| 56 | |
| 57 #endif // ReadableStreamDataConsumerHandle_h | |
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Chromium Code Reviews
Issue 2365853002:
Implement ReadableStreamBytesConsumer (Closed)
