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/*
* Copyright (C) 2017-2025 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include "Exception.h"
#include <JavaScriptCore/Forward.h>
#include <JavaScriptCore/JSCJSValue.h>
#include <span>
#include <wtf/Function.h>
#include <wtf/Ref.h>
#include <wtf/RefCountedAndCanMakeWeakPtr.h>
namespace WebCore {
class ReadableStream;
class ReadableStreamDefaultReader;
class SinkReadRequest;
template<typename> class ExceptionOr;
class ReadableStreamToSharedBufferSink final : public RefCountedAndCanMakeWeakPtr<ReadableStreamToSharedBufferSink> {
public:
using Result = Variant<std::nullptr_t, std::span<const uint8_t>, JSC::JSValue, Exception>;
using Callback = Function<void(Result&&)>;
static Ref<ReadableStreamToSharedBufferSink> create(Callback&& callback) { return adoptRef(*new ReadableStreamToSharedBufferSink(WTFMove(callback))); }
~ReadableStreamToSharedBufferSink();
void pipeFrom(ReadableStream&);
void clearCallback();
bool hasCallback() const { return !!m_callback; }
private:
explicit ReadableStreamToSharedBufferSink(Callback&&);
friend class SinkReadRequest;
void enqueue(const Ref<JSC::Uint8Array>&);
void close();
void error(Exception&&);
void error(JSC::JSValue);
Callback m_callback;
RefPtr<ReadableStreamDefaultReader> m_reader;
RefPtr<SinkReadRequest> m_readRequest;
};
} // namespace WebCore
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