mirror of
https://github.com/FairRootGroup/FairMQ.git
synced 2025-10-13 08:41:16 +00:00
90 lines
2.5 KiB
C++
90 lines
2.5 KiB
C++
/********************************************************************************
|
|
* 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" *
|
|
********************************************************************************/
|
|
/**
|
|
* FairMQShmManager.h
|
|
*
|
|
* @since 2016-04-08
|
|
* @author A. Rybalchenko
|
|
*/
|
|
|
|
#ifndef FAIR_MQ_SHMEM_MANAGER_H_
|
|
#define FAIR_MQ_SHMEM_MANAGER_H_
|
|
|
|
#include <fairmq/Tools.h>
|
|
#include <fairmq/shmem/Region.h>
|
|
#include <fairmq/shmem/Common.h>
|
|
|
|
#include "FairMQLogger.h"
|
|
#include "FairMQMessage.h"
|
|
|
|
#include <boost/interprocess/managed_shared_memory.hpp>
|
|
#include <boost/interprocess/ipc/message_queue.hpp>
|
|
#include <boost/interprocess/sync/named_mutex.hpp>
|
|
|
|
#include <string>
|
|
#include <unordered_map>
|
|
#include <stdexcept>
|
|
|
|
namespace fair
|
|
{
|
|
namespace mq
|
|
{
|
|
namespace shmem
|
|
{
|
|
|
|
struct SharedMemoryError : std::runtime_error { using std::runtime_error::runtime_error; };
|
|
|
|
class Manager
|
|
{
|
|
friend struct Region;
|
|
|
|
public:
|
|
Manager(const std::string& id, size_t size);
|
|
|
|
Manager() = delete;
|
|
|
|
Manager(const Manager&) = delete;
|
|
Manager operator=(const Manager&) = delete;
|
|
|
|
~Manager();
|
|
|
|
boost::interprocess::managed_shared_memory& Segment();
|
|
boost::interprocess::managed_shared_memory& ManagementSegment();
|
|
|
|
void StartMonitor();
|
|
|
|
static void Interrupt();
|
|
static void Resume();
|
|
|
|
int GetDeviceCounter();
|
|
int IncrementDeviceCounter();
|
|
int DecrementDeviceCounter();
|
|
|
|
boost::interprocess::mapped_region* CreateRegion(const size_t size, const uint64_t id, FairMQRegionCallback callback, const std::string& path = "", int flags = 0);
|
|
Region* GetRemoteRegion(const uint64_t id);
|
|
void RemoveRegion(const uint64_t id);
|
|
|
|
void RemoveSegments();
|
|
|
|
private:
|
|
std::string fShmId;
|
|
std::string fSegmentName;
|
|
std::string fManagementSegmentName;
|
|
boost::interprocess::managed_shared_memory fSegment;
|
|
boost::interprocess::managed_shared_memory fManagementSegment;
|
|
boost::interprocess::named_mutex fShmMtx;
|
|
fair::mq::shmem::DeviceCounter* fDeviceCounter;
|
|
static std::unordered_map<uint64_t, std::unique_ptr<Region>> fRegions;
|
|
};
|
|
|
|
} // namespace shmem
|
|
} // namespace mq
|
|
} // namespace fair
|
|
|
|
#endif /* FAIR_MQ_SHMEM_MANAGER_H_ */
|