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Callbacks are called when the data buffer of the message assiciated with the corresponding region is no longer needed by the transport. Example in examples/advanced/Region/
77 lines
1.6 KiB
C++
77 lines
1.6 KiB
C++
/********************************************************************************
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* Copyright (C) 2014 GSI Helmholtzzentrum fuer Schwerionenforschung GmbH *
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* *
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* This software is distributed under the terms of the *
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* GNU Lesser General Public Licence version 3 (LGPL) version 3, *
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* copied verbatim in the file "LICENSE" *
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********************************************************************************/
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#ifndef FAIR_MQ_SHMEM_COMMON_H_
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#define FAIR_MQ_SHMEM_COMMON_H_
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#include <atomic>
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#include <boost/interprocess/managed_shared_memory.hpp>
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namespace fair
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{
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namespace mq
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{
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namespace shmem
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{
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struct DeviceCounter
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{
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DeviceCounter(unsigned int c)
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: fCount(c)
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{}
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std::atomic<unsigned int> fCount;
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};
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struct RegionCounter
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{
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RegionCounter(unsigned int c)
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: fCount(c)
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{}
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std::atomic<unsigned int> fCount;
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};
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struct MonitorStatus
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{
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MonitorStatus()
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: fActive(true)
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{}
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bool fActive;
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};
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struct alignas(32) MetaHeader
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{
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uint64_t fSize;
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uint64_t fRegionId;
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boost::interprocess::managed_shared_memory::handle_t fHandle;
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};
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struct RegionBlock
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{
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RegionBlock()
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: fHandle()
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, fSize(0)
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{}
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RegionBlock(boost::interprocess::managed_shared_memory::handle_t handle, size_t size)
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: fHandle(handle)
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, fSize(size)
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{}
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boost::interprocess::managed_shared_memory::handle_t fHandle;
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size_t fSize;
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};
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} // namespace shmem
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} // namespace mq
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} // namespace fair
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#endif /* FAIR_MQ_SHMEM_COMMON_H_ */
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