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/*
* Copyright (C) 2023 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.
*/
#include "config.h"
#include "WebTransportReceiveStreamSource.h"
#include "JSWebTransportReceiveStream.h"
#include "WebTransport.h"
#include "WebTransportSession.h"
namespace WebCore {
WebTransportReceiveStreamSource::WebTransportReceiveStreamSource()
{
}
WebTransportReceiveStreamSource::WebTransportReceiveStreamSource(WebTransport& transport, WebTransportStreamIdentifier identifier)
: m_transport(transport)
, m_identifier(identifier)
{
}
bool WebTransportReceiveStreamSource::receiveIncomingStream(JSC::JSGlobalObject& globalObject, Ref<WebTransportReceiveStream>& stream)
{
if (m_isCancelled || m_identifier)
return false;
auto& jsDOMGlobalObject = *JSC::jsCast<JSDOMGlobalObject*>(&globalObject);
Locker<JSC::JSLock> locker(jsDOMGlobalObject.vm().apiLock());
auto value = toJS(&globalObject, &jsDOMGlobalObject, stream.get());
if (!controller().enqueue(value)) {
doCancel();
return false;
}
return true;
}
void WebTransportReceiveStreamSource::receiveBytes(std::span<const uint8_t> bytes, bool withFin, std::optional<WebCore::Exception>&& exception)
{
if (m_isCancelled || m_isClosed || !m_identifier)
return;
if (exception) {
controller().error(*exception);
clean();
return;
}
auto arrayBuffer = ArrayBuffer::tryCreateUninitialized(bytes.size(), 1);
if (arrayBuffer)
memcpySpan(arrayBuffer->mutableSpan(), bytes);
if (!controller().enqueue(WTFMove(arrayBuffer)))
doCancel();
if (withFin) {
m_isClosed = true;
controller().close();
clean();
}
}
void WebTransportReceiveStreamSource::doCancel()
{
if (m_isCancelled)
return;
m_isCancelled = true;
if (!m_identifier)
return;
RefPtr transport = m_transport.get();
if (!transport)
return;
RefPtr session = transport->session();
if (!session)
return;
// FIXME: Use error code from WebTransportError
session->cancelReceiveStream(*m_identifier, std::nullopt);
}
}
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