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/*
* Copyright (C) 2021 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
#if ENABLE(WEB_RTC)
#include "RTCDataChannelHandler.h"
#include "RTCDataChannelIdentifier.h"
#include "RTCDataChannelState.h"
#include <wtf/Function.h>
#include <wtf/Lock.h>
#include <wtf/TZoneMalloc.h>
#include <wtf/WeakPtr.h>
namespace WebCore {
class RTCDataChannelRemoteHandler;
}
namespace WTF {
template<typename T> struct IsDeprecatedWeakRefSmartPointerException;
template<> struct IsDeprecatedWeakRefSmartPointerException<WebCore::RTCDataChannelRemoteHandler> : std::true_type { };
}
namespace WebCore {
class RTCDataChannelHandlerClient;
class RTCDataChannelRemoteHandlerConnection;
class RTCError;
class FragmentedSharedBuffer;
class RTCDataChannelRemoteHandler final : public RTCDataChannelHandler, public CanMakeWeakPtr<RTCDataChannelRemoteHandler> {
WTF_MAKE_TZONE_ALLOCATED(RTCDataChannelRemoteHandler);
public:
static std::unique_ptr<RTCDataChannelRemoteHandler> create(RTCDataChannelIdentifier, RefPtr<RTCDataChannelRemoteHandlerConnection>&&);
RTCDataChannelRemoteHandler(RTCDataChannelIdentifier, Ref<RTCDataChannelRemoteHandlerConnection>&&);
~RTCDataChannelRemoteHandler();
WEBCORE_EXPORT void didChangeReadyState(RTCDataChannelState);
WEBCORE_EXPORT void didReceiveStringData(String&&);
WEBCORE_EXPORT void didReceiveRawData(std::span<const uint8_t>);
WEBCORE_EXPORT void didDetectError(Ref<RTCError>&&);
WEBCORE_EXPORT void bufferedAmountIsDecreasing(size_t);
WEBCORE_EXPORT void readyToSend();
void setLocalIdentifier(RTCDataChannelIdentifier localIdentifier) { m_localIdentifier = localIdentifier; }
private:
// RTCDataChannelHandler
void setClient(RTCDataChannelHandlerClient&, std::optional<ScriptExecutionContextIdentifier>) final;
bool sendStringData(const CString&) final;
bool sendRawData(std::span<const uint8_t>) final;
void close() final;
RTCDataChannelIdentifier m_remoteIdentifier;
Markable<RTCDataChannelIdentifier> m_localIdentifier;
RTCDataChannelHandlerClient* m_client { nullptr };
Ref<RTCDataChannelRemoteHandlerConnection> m_connection;
struct Message {
bool isRaw { false };
Ref<FragmentedSharedBuffer> buffer;
};
Vector<Message> m_pendingMessages;
bool m_isPendingClose { false };
bool m_isReadyToSend { false };
};
} // namespace WebCore
#endif // ENABLE(WEB_RTC)
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