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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
#include "Decoder.h"
#include "MessageReceiveQueue.h"
#include <variant>
#include <wtf/HashMap.h>
namespace IPC {
enum class ReceiverName : uint8_t;
class MessageReceiveQueueMap {
public:
MessageReceiveQueueMap() = default;
~MessageReceiveQueueMap() = default;
static bool isValidMessage(const Decoder& message)
{
return QueueMap::isValidKey(std::make_pair(static_cast<uint8_t>(message.messageReceiverName()), message.destinationID()));
}
void add(MessageReceiveQueue& queue, const ReceiverMatcher& matcher) { addImpl(StoreType(&queue), matcher); }
void add(std::unique_ptr<MessageReceiveQueue>&& queue, const ReceiverMatcher& matcher) { addImpl(StoreType(WTFMove(queue)), matcher); }
void remove(const ReceiverMatcher&);
MessageReceiveQueue* get(const Decoder&) const;
private:
using StoreType = std::variant<MessageReceiveQueue*, std::unique_ptr<MessageReceiveQueue>>;
void addImpl(StoreType&&, const ReceiverMatcher&);
using QueueMap = HashMap<std::pair<uint8_t, uint64_t>, StoreType>;
// Key is ReceiverName. FIXME: make it possible to use ReceiverName.
using AnyIDQueueMap = HashMap<uint8_t, StoreType>;
QueueMap m_queues;
AnyIDQueueMap m_anyIDQueues;
std::optional<StoreType> m_anyReceiverQueue;
};
} // namespace IPC
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