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// This code contains NVIDIA Confidential Information and is disclosed to you
// under a form of NVIDIA software license agreement provided separately to you.
//
// Notice
// NVIDIA Corporation and its licensors retain all intellectual property and
// proprietary rights in and to this software and related documentation and
// any modifications thereto. Any use, reproduction, disclosure, or
// distribution of this software and related documentation without an express
// license agreement from NVIDIA Corporation is strictly prohibited.
//
// ALL NVIDIA DESIGN SPECIFICATIONS, CODE ARE PROVIDED "AS IS.". NVIDIA MAKES
// NO WARRANTIES, EXPRESSED, IMPLIED, STATUTORY, OR OTHERWISE WITH RESPECT TO
// THE MATERIALS, AND EXPRESSLY DISCLAIMS ALL IMPLIED WARRANTIES OF NONINFRINGEMENT,
// MERCHANTABILITY, AND FITNESS FOR A PARTICULAR PURPOSE.
//
// Information and code furnished is believed to be accurate and reliable.
// However, NVIDIA Corporation assumes no responsibility for the consequences of use of such
// information or for any infringement of patents or other rights of third parties that may
// result from its use. No license is granted by implication or otherwise under any patent
// or patent rights of NVIDIA Corporation. Details are subject to change without notice.
// This code supersedes and replaces all information previously supplied.
// NVIDIA Corporation products are not authorized for use as critical
// components in life support devices or systems without express written approval of
// NVIDIA Corporation.
//
// Copyright (c) 2018 NVIDIA Corporation. All rights reserved.
#pragma once
#include "capnp/serialize.h"
#include "NvBlastExtInputStream.h"
#include "NvBlastExtOutputStream.h"
#include "NvBlastArray.h"
#include "NvBlastExtSerialization.h"
namespace Nv
{
namespace Blast
{
template<typename TObject, typename TSerializationReader, typename TSerializationBuilder>
class ExtSerializationCAPN
{
public:
static TObject* deserializeFromBuffer(const unsigned char* input, uint64_t size);
static TObject* deserializeFromStream(std::istream& inputStream);
static uint64_t serializationBufferSize(const TObject* object);
static bool serializeIntoBuffer(const TObject* object, unsigned char* buffer, uint64_t maxSize, uint64_t& usedSize);
static bool serializeIntoBuffer(const TObject *object, unsigned char*& buffer, uint64_t& size, ExtSerialization::BufferProvider* bufferProvider = nullptr, uint64_t offset = 0);
static bool serializeIntoStream(const TObject* object, std::ostream& outputStream);
private:
// Specialized
static bool serializeIntoBuilder(TSerializationBuilder& objectBuilder, const TObject* object);
static bool serializeIntoMessage(capnp::MallocMessageBuilder& message, const TObject* object);
static TObject* deserializeFromStreamReader(capnp::InputStreamMessageReader& message);
};
template<typename TObject, typename TSerializationReader, typename TSerializationBuilder>
TObject* ExtSerializationCAPN<TObject, TSerializationReader, TSerializationBuilder>::deserializeFromBuffer(const unsigned char* input, uint64_t size)
{
kj::ArrayPtr<const unsigned char> source(input, size);
kj::ArrayInputStream inputStream(source);
Nv::Blast::Array<uint64_t>::type scratch(static_cast<uint32_t>(size));
kj::ArrayPtr<capnp::word> scratchArray((capnp::word*) scratch.begin(), size);
capnp::InputStreamMessageReader message(inputStream, capnp::ReaderOptions(), scratchArray);
return deserializeFromStreamReader(message);
}
template<typename TObject, typename TSerializationReader, typename TSerializationBuilder>
TObject* ExtSerializationCAPN<TObject, TSerializationReader, TSerializationBuilder>::deserializeFromStream(std::istream& inputStream)
{
ExtInputStream readStream(inputStream);
capnp::InputStreamMessageReader message(readStream);
return deserializeFromStreamReader(message);
}
template<typename TObject, typename TSerializationReader, typename TSerializationBuilder>
uint64_t ExtSerializationCAPN<TObject, TSerializationReader, TSerializationBuilder>::serializationBufferSize(const TObject* object)
{
capnp::MallocMessageBuilder message;
bool result = serializeIntoMessage(message, object);
if (result == false)
{
return 0;
}
return computeSerializedSizeInWords(message) * sizeof(uint64_t);
}
template<typename TObject, typename TSerializationReader, typename TSerializationBuilder>
bool ExtSerializationCAPN<TObject, TSerializationReader, TSerializationBuilder>::serializeIntoBuffer(const TObject* object, unsigned char* buffer, uint64_t maxSize, uint64_t& usedSize)
{
capnp::MallocMessageBuilder message;
bool result = serializeIntoMessage(message, object);
if (result == false)
{
usedSize = 0;
return false;
}
uint64_t messageSize = computeSerializedSizeInWords(message) * sizeof(uint64_t);
if (maxSize < messageSize)
{
NVBLAST_LOG_ERROR("When attempting to serialize into an existing buffer, the provided buffer was too small.");
usedSize = 0;
return false;
}
kj::ArrayPtr<unsigned char> outputBuffer(buffer, maxSize);
kj::ArrayOutputStream outputStream(outputBuffer);
capnp::writeMessage(outputStream, message);
usedSize = messageSize;
return true;
}
template<typename TObject, typename TSerializationReader, typename TSerializationBuilder>
bool ExtSerializationCAPN<TObject, TSerializationReader, TSerializationBuilder>::serializeIntoBuffer(const TObject *object, unsigned char*& buffer, uint64_t& size, ExtSerialization::BufferProvider* bufferProvider, uint64_t offset)
{
capnp::MallocMessageBuilder message;
bool result = serializeIntoMessage(message, object);
if (result == false)
{
buffer = nullptr;
size = 0;
return false;
}
const uint64_t blockSize = computeSerializedSizeInWords(message) * sizeof(uint64_t);
size = blockSize + offset;
buffer = static_cast<unsigned char *>(bufferProvider != nullptr ? bufferProvider->requestBuffer(size) : NVBLAST_ALLOC(size));
kj::ArrayPtr<unsigned char> outputBuffer(buffer + offset, blockSize);
kj::ArrayOutputStream outputStream(outputBuffer);
capnp::writeMessage(outputStream, message);
return true;
}
template<typename TObject, typename TSerializationReader, typename TSerializationBuilder>
bool ExtSerializationCAPN<TObject, TSerializationReader, TSerializationBuilder>::serializeIntoStream(const TObject* object, std::ostream& outputStream)
{
capnp::MallocMessageBuilder message;
bool result = serializeIntoMessage(message, object);
if (result == false)
{
return false;
}
ExtOutputStream blastOutputStream(outputStream);
writeMessage(blastOutputStream, message);
return true;
}
} // namespace Blast
} // namespace Nv
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