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#ifndef FWCore_SharedMemory_ROOTSerializer_h
#define FWCore_SharedMemory_ROOTSerializer_h
// -*- C++ -*-
//
// Package: FWCore/SharedMemory
// Class : ROOTSerializer
//
/**\class ROOTSerializer ROOTSerializer.h " FWCore/SharedMemory/interface/ROOTSerializer.h"
Description: Use ROOT dictionaries to serialize object to a buffer
Usage:
This is used in conjuction with ROOTDeserializer.
*/
//
// Original Author: Chris Jones
// Created: 22/01/2020
//
// system include files
#include "TClass.h"
#include "TBufferFile.h"
// user include files
// forward declarations
namespace edm::shared_memory {
template <typename T, typename WRITEBUFFER>
class ROOTSerializer {
public:
ROOTSerializer(WRITEBUFFER& iBuffer)
: buffer_(iBuffer), class_{TClass::GetClass(typeid(T))}, bufferFile_{TBuffer::kWrite} {}
ROOTSerializer(const ROOTSerializer&) = delete;
const ROOTSerializer& operator=(const ROOTSerializer&) = delete;
ROOTSerializer(ROOTSerializer&&) = delete;
const ROOTSerializer& operator=(ROOTSerializer&&) = delete;
// ---------- const member functions ---------------------
// ---------- member functions ---------------------------
void serialize(T& iValue) {
bufferFile_.Reset();
class_->WriteBuffer(bufferFile_, &iValue);
buffer_.copyToBuffer(bufferFile_.Buffer(), bufferFile_.Length());
}
private:
// ---------- member data --------------------------------
WRITEBUFFER& buffer_;
TClass* const class_;
TBufferFile bufferFile_;
};
} // namespace edm::shared_memory
#endif
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