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/*
* Copyright (c) 2017-2019 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#pragma once
#include <hicn/transport/core/content_object.h>
#include <hicn/transport/core/interest.h>
#include <set>
namespace transport {
namespace implementation {
class ConsumerSocket;
}
namespace protocol {
class Reassembly;
class TransportProtocol;
class Indexer {
public:
virtual ~Indexer() = default;
/**
* Retrieve from the manifest the next suffix to retrieve.
*/
virtual uint32_t getNextSuffix() = 0;
virtual void setFirstSuffix(uint32_t suffix) = 0;
/**
* Retrive the next segment to be reassembled.
*/
virtual uint32_t getNextReassemblySegment() = 0;
virtual bool isFinalSuffixDiscovered() = 0;
virtual uint32_t getFinalSuffix() = 0;
virtual void reset(std::uint32_t offset = 0) = 0;
virtual void onContentObject(core::Interest &interest,
core::ContentObject &content_object) = 0;
};
class IndexManager : Indexer {
public:
static constexpr uint32_t invalid_index = ~0;
IndexManager(implementation::ConsumerSocket *icn_socket,
TransportProtocol *transport, Reassembly *reassembly);
uint32_t getNextSuffix() override { return indexer_->getNextSuffix(); }
void setFirstSuffix(uint32_t suffix) override {
indexer_->setFirstSuffix(suffix);
}
uint32_t getNextReassemblySegment() override {
return indexer_->getNextReassemblySegment();
}
bool isFinalSuffixDiscovered() override {
return indexer_->isFinalSuffixDiscovered();
}
uint32_t getFinalSuffix() override { return indexer_->getFinalSuffix(); }
void reset(std::uint32_t offset = 0) override;
void onContentObject(core::Interest &interest,
core::ContentObject &content_object) override;
private:
std::unique_ptr<Indexer> indexer_;
bool first_segment_received_;
std::set<std::pair<core::Interest::Ptr, core::ContentObject::Ptr>>
interest_data_set_;
implementation::ConsumerSocket *icn_socket_;
TransportProtocol *transport_;
Reassembly *reassembly_;
};
} // end namespace protocol
} // end namespace transport
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