# FairMQ: fairmq/shmem/UnmanagedRegion.h Source File

UnmanagedRegion.h
/********************************************************************************
* Copyright (C) 2014 GSI Helmholtzzentrum fuer Schwerionenforschung GmbH *
* *
* This software is distributed under the terms of the *
* GNU Lesser General Public Licence (LGPL) version 3, *
* copied verbatim in the file "LICENSE" *
********************************************************************************/
#ifndef FAIR_MQ_SHMEM_UNMANAGEDREGION_H_
#define FAIR_MQ_SHMEM_UNMANAGEDREGION_H_
#include "Manager.h"
#include <FairMQUnmanagedRegion.h>
#include <FairMQLogger.h>
#include <boost/interprocess/shared_memory_object.hpp>
#include <boost/interprocess/mapped_region.hpp>
#include <cstddef> // size_t
#include <string>
namespace fair
{
namespace mq
{
namespace shmem
{
class Message;
class Socket;
class UnmanagedRegion final : public fair::mq::UnmanagedRegion
{
friend class Message;
friend class Socket;
public:
UnmanagedRegion(Manager& manager, const size_t size, RegionCallback callback, const std::string& path = "", int flags = 0)
: UnmanagedRegion(manager, size, 0, callback, path, flags)
{}
UnmanagedRegion(Manager& manager, const size_t size, const int64_t userFlags, RegionCallback callback, const std::string& path = "", int flags = 0)
: fManager(manager)
, fRegion(nullptr)
, fRegionId(0)
{
auto result = fManager.CreateRegion(size, userFlags, callback, path, flags);
fRegion = result.first;
fRegionId = result.second;
}
void* GetData() const override { return fRegion->get_address(); }
size_t GetSize() const override { return fRegion->get_size(); }
~UnmanagedRegion() override { fManager.RemoveRegion(fRegionId); }
private:
Manager& fManager;
boost::interprocess::mapped_region* fRegion;
uint64_t fRegionId;
};
}
}
}
#endif /* FAIR_MQ_SHMEM_UNMANAGEDREGION_H_ */
fair::mq::shmem::Manager
Definition: Manager.h:46
fair::mq::shmem::UnmanagedRegion
Definition: UnmanagedRegion.h:33
FairMQUnmanagedRegion
Definition: FairMQUnmanagedRegion.h:34
fair::mq::shmem::Socket
Definition: Socket.h:28
fair
Tools for interfacing containers to the transport via polymorphic allocators.
Definition: DeviceRunner.h:23
fair::mq::shmem::Message
Definition: Message.h:31

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