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generic encapsulator

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This commit is contained in:
Simon Pribylski
2025-02-27 22:50:51 +01:00
parent f6620dc522
commit 9fa023f716
5 changed files with 96 additions and 38 deletions
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69
include/sp/io/IOInterfaceImpl.inl
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@@ -4,39 +4,60 @@
#include <stdexcept>
namespace sp {
namespace io {
namespace details {
template <typename... TOptions>
struct MessageEncapsulatorPack {};
template <>
class MessageEncapsulator<option::ZlibCompress> {
public:
struct MessageEncapsulatorPack<> {
static DataBuffer Encapsulate(const DataBuffer& a_Data) {
return zlib::Compress(a_Data);
return a_Data;
}
static DataBuffer Decapsulate(DataBuffer& a_Data, std::size_t a_Length) {
return zlib::Decompress(a_Data, a_Length);
return a_Data;
}
};
template <typename IOTag, typename MessageDispatcher, typename MessageFactory>
Stream<IOTag, MessageDispatcher, MessageFactory>::Stream(IOInterface<IOTag>&& a_Interface) : m_Interface(std::move(a_Interface)) {}
template <typename TOption, typename... TOptions>
struct MessageEncapsulatorPack<TOption, TOptions...> {
static DataBuffer Encapsulate(const DataBuffer& a_Data, const TOption& a_Option, const TOptions&... a_Options) {
DataBuffer data = io::MessageEncapsulator<TOption>::Encapsulate(a_Data, a_Option);
return MessageEncapsulatorPack<TOptions...>::Encapsulate(data, a_Options...);
}
static DataBuffer Decapsulate(DataBuffer& a_Data, std::size_t a_Length, const TOption& a_Option, const TOptions&... a_Options) {
DataBuffer data = io::MessageEncapsulator<TOption>::Decapsulate(a_Data, a_Length, a_Option);
return MessageEncapsulatorPack<TOptions...>::Decapsulate(data, data.GetSize(), a_Options...);
}
};
template <typename IOTag, typename MessageDispatcher, typename MessageFactory>
Stream<IOTag, MessageDispatcher, MessageFactory>::Stream(Stream<IOTag, MessageDispatcher, MessageFactory>&& a_Stream) :
} // namespace details
namespace io {
template <typename IOTag, typename MessageDispatcher, typename MessageFactory, typename... TOptions>
Stream<IOTag, MessageDispatcher, MessageFactory, TOptions...>::Stream(IOInterface<IOTag>&& a_Interface) :
m_Interface(std::move(a_Interface)) {}
template <typename IOTag, typename MessageDispatcher, typename MessageFactory, typename... TOptions>
Stream<IOTag, MessageDispatcher, MessageFactory, TOptions...>::Stream(
Stream<IOTag, MessageDispatcher, MessageFactory, TOptions...>&& a_Stream) :
m_Dispatcher(std::move(a_Stream.m_Dispatcher)), m_Interface(std::move(a_Stream.m_Interface)) {}
template <typename IOTag, typename MessageDispatcher, typename MessageFactory>
void Stream<IOTag, MessageDispatcher, MessageFactory>::SendMessage(const MessageBase& a_Message) {
template <typename IOTag, typename MessageDispatcher, typename MessageFactory, typename... TOptions>
void Stream<IOTag, MessageDispatcher, MessageFactory, TOptions...>::SendMessage(
const MessageBase& a_Message, const TOptions&... a_Options) {
DataBuffer data = a_Message.Write();
DataBuffer encapsulated = Encapsulate(data);
DataBuffer encapsulated = Encapsulate(data, a_Options...);
DataBuffer finalData;
finalData << VarInt{encapsulated.GetSize()} << encapsulated;
m_Interface.Write(finalData);
}
template <typename IOTag, typename MessageDispatcher, typename MessageFactory>
void Stream<IOTag, MessageDispatcher, MessageFactory>::RecieveMessages() {
template <typename IOTag, typename MessageDispatcher, typename MessageFactory, typename... TOptions>
void Stream<IOTag, MessageDispatcher, MessageFactory, TOptions...>::RecieveMessages(const TOptions&... a_Options) {
while (true) {
// reading the first VarInt part byte by byte
std::uint64_t lenghtValue = 0;
unsigned int readPos = 0;
@@ -71,7 +92,7 @@ void Stream<IOTag, MessageDispatcher, MessageFactory>::RecieveMessages() {
DataBuffer buffer;
buffer = m_Interface.Read(lenghtValue);
buffer = Decapsulate(buffer, lenghtValue);
buffer = Decapsulate(buffer, lenghtValue, a_Options...);
VarInt packetType;
buffer >> packetType;
@@ -88,16 +109,16 @@ void Stream<IOTag, MessageDispatcher, MessageFactory>::RecieveMessages() {
}
}
template <typename IOTag, typename MessageDispatcher, typename MessageFactory>
DataBuffer Stream<IOTag, MessageDispatcher, MessageFactory>::Encapsulate(const DataBuffer& a_Data) {
// TODO: process compress + encryption
return MessageEncapsulator<option::ZlibCompress>::Encapsulate(a_Data);
template <typename IOTag, typename MessageDispatcher, typename MessageFactory, typename... TOptions>
DataBuffer Stream<IOTag, MessageDispatcher, MessageFactory, TOptions...>::Encapsulate(
const DataBuffer& a_Data, const TOptions&... a_Options) {
return details::MessageEncapsulatorPack<TOptions...>::Encapsulate(a_Data, a_Options...);
}
template <typename IOTag, typename MessageDispatcher, typename MessageFactory>
DataBuffer Stream<IOTag, MessageDispatcher, MessageFactory>::Decapsulate(DataBuffer& a_Data, std::size_t a_Length) {
// TODO: process compress + encryption
return MessageEncapsulator<option::ZlibCompress>::Decapsulate(a_Data, a_Length);
template <typename IOTag, typename MessageDispatcher, typename MessageFactory, typename... TOptions>
DataBuffer Stream<IOTag, MessageDispatcher, MessageFactory, TOptions...>::Decapsulate(
DataBuffer& a_Data, std::size_t a_Length, const TOptions&... a_Options) {
return details::MessageEncapsulatorPack<TOptions...>::Decapsulate(a_Data, a_Length, a_Options...);
}
} // namespace io