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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/interfaces/socket.h>
#include <hicn/transport/protocols/indexing_manager.h>
#include <hicn/transport/utils/suffix_strategy.h>
#include <list>
namespace transport {
namespace protocol {
class ManifestIndexManager : public IncrementalIndexManager,
public PacketManager<Interest> {
static constexpr double alpha = 0.3;
public:
using SuffixQueue = std::list<uint32_t>;
using HashEntry = std::pair<std::vector<uint8_t>, core::HashAlgorithm>;
ManifestIndexManager(interface::ConsumerSocket *icn_socket,
TransportProtocol *next_interest);
virtual ~ManifestIndexManager() = default;
void reset() override;
bool onManifest(core::ContentObject::Ptr &&content_object) override;
bool onContentObject(const core::ContentObject &content_object) override;
uint32_t getNextSuffix() override;
uint32_t getNextReassemblySegment() override;
bool isFinalSuffixDiscovered() override;
uint32_t getFinalSuffix() override;
private:
void onManifestReceived(Interest::Ptr &&i, ContentObject::Ptr &&c);
void onManifestTimeout(Interest::Ptr &&i);
void fillWindow(Name &name, uint32_t current_manifest);
protected:
SuffixQueue suffix_queue_;
SuffixQueue::iterator next_reassembly_segment_;
SuffixQueue::iterator next_to_retrieve_segment_;
// Hash verification
std::unordered_map<uint32_t,
std::pair<std::vector<uint8_t>, core::HashAlgorithm>>
suffix_hash_map_;
// Manifest Suffix
utils::SuffixManifest suffix_manifest_;
// (temporary) To call scheduleNextInterests() after receiving a manifest
TransportProtocol *next_interest_;
};
} // end namespace protocol
} // end namespace transport
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