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/*
* Copyright (c) 2021 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/auth/crypto_hash.h>
#include <hicn/transport/core/name.h>
#include <hicn/transport/interfaces/socket_options_keys.h>
#include <cinttypes>
#include <type_traits>
#include <unordered_map>
namespace transport {
namespace core {
enum class ManifestVersion : uint8_t {
VERSION_1 = 1,
};
enum class ManifestType : uint8_t {
INLINE_MANIFEST = 1,
FINAL_CHUNK_NUMBER = 2,
FLIC_MANIFEST = 3,
};
struct ParamsRTC {
std::uint64_t timestamp;
std::uint32_t prod_rate;
std::uint32_t prod_seg;
std::uint32_t support_fec;
bool operator==(const ParamsRTC &other) const {
return (timestamp == other.timestamp && prod_rate == other.prod_rate &&
prod_seg == other.prod_seg && support_fec == other.support_fec);
}
};
struct ParamsBytestream {
std::uint32_t final_segment;
bool operator==(const ParamsBytestream &other) const {
return (final_segment == other.final_segment);
}
};
template <typename T>
struct format_traits {
using Encoder = typename T::Encoder;
using Decoder = typename T::Decoder;
using Hash = typename T::Hash;
using HashType = typename T::HashType;
using Suffix = typename T::Suffix;
using SuffixList = typename T::SuffixList;
};
class Packet;
template <typename Implementation>
class ManifestEncoder {
public:
virtual ~ManifestEncoder() = default;
ManifestEncoder encode() {
return static_cast<Implementation &>(*this).encodeImpl();
}
ManifestEncoder &clear() {
return static_cast<Implementation &>(*this).clearImpl();
}
ManifestEncoder &setType(ManifestType type) {
return static_cast<Implementation &>(*this).setTypeImpl(type);
}
ManifestEncoder &setHashAlgorithm(auth::CryptoHashType hash) {
return static_cast<Implementation &>(*this).setHashAlgorithmImpl(hash);
}
template <
typename T,
typename = std::enable_if_t<std::is_same<
std::remove_const_t<std::remove_reference_t<T>>, core::Name>::value>>
ManifestEncoder &setBaseName(T &&name) {
return static_cast<Implementation &>(*this).setBaseNameImpl(name);
}
template <typename Hash>
ManifestEncoder &addSuffixAndHash(uint32_t suffix, Hash &&hash) {
return static_cast<Implementation &>(*this).addSuffixAndHashImpl(
suffix, std::forward<Hash &&>(hash));
}
ManifestEncoder &setIsLast(bool is_last) {
return static_cast<Implementation &>(*this).setIsLastImpl(is_last);
}
ManifestEncoder &setVersion(ManifestVersion version) {
return static_cast<Implementation &>(*this).setVersionImpl(version);
}
std::size_t estimateSerializedLength(std::size_t number_of_entries) {
return static_cast<Implementation &>(*this).estimateSerializedLengthImpl(
number_of_entries);
}
ManifestEncoder &update() {
return static_cast<Implementation &>(*this).updateImpl();
}
ManifestEncoder &setParamsBytestream(const ParamsBytestream ¶ms) {
return static_cast<Implementation &>(*this).setParamsBytestreamImpl(params);
}
ManifestEncoder &setParamsRTC(const ParamsRTC ¶ms) {
return static_cast<Implementation &>(*this).setParamsRTCImpl(params);
}
static std::size_t manifestHeaderSize(
interface::ProductionProtocolAlgorithms transport_type =
interface::ProductionProtocolAlgorithms::UNKNOWN) {
return Implementation::manifestHeaderSizeImpl(transport_type);
}
static std::size_t manifestEntrySize() {
return Implementation::manifestEntrySizeImpl();
}
};
template <typename Implementation>
class ManifestDecoder {
public:
virtual ~ManifestDecoder() = default;
ManifestDecoder &clear() {
return static_cast<Implementation &>(*this).clearImpl();
}
void decode() { static_cast<Implementation &>(*this).decodeImpl(); }
ManifestType getType() const {
return static_cast<const Implementation &>(*this).getTypeImpl();
}
interface::ProductionProtocolAlgorithms getTransportType() const {
return static_cast<const Implementation &>(*this).getTransportTypeImpl();
}
auth::CryptoHashType getHashAlgorithm() const {
return static_cast<const Implementation &>(*this).getHashAlgorithmImpl();
}
core::Name getBaseName() const {
return static_cast<const Implementation &>(*this).getBaseNameImpl();
}
auto getSuffixHashList() {
return static_cast<Implementation &>(*this).getSuffixHashListImpl();
}
bool getIsLast() const {
return static_cast<const Implementation &>(*this).getIsLastImpl();
}
ManifestVersion getVersion() const {
return static_cast<const Implementation &>(*this).getVersionImpl();
}
std::size_t estimateSerializedLength(std::size_t number_of_entries) const {
return static_cast<const Implementation &>(*this)
.estimateSerializedLengthImpl(number_of_entries);
}
ParamsBytestream getParamsBytestream() const {
return static_cast<const Implementation &>(*this).getParamsBytestreamImpl();
}
ParamsRTC getParamsRTC() const {
return static_cast<const Implementation &>(*this).getParamsRTCImpl();
}
};
} // namespace core
} // namespace transport
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