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shm: add APIs for implementing keep-alive process

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This commit is contained in:
Alexey Rybalchenko
2021-12-09 00:11:14 +01:00
committed by Dennis Klein
parent eb4620b1ec
commit 692576a5b1
19 changed files with 872 additions and 452 deletions
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7
fairmq/shmem/Common.h
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@@ -31,11 +31,11 @@ namespace fair::mq::shmem
struct SharedMemoryError : std::runtime_error { using std::runtime_error::runtime_error; };
using SimpleSeqFitSegment = boost::interprocess::basic_managed_shared_memory<char,
boost::interprocess::simple_seq_fit<boost::interprocess::mutex_family>,
boost::interprocess::simple_seq_fit<boost::interprocess::mutex_family, boost::interprocess::offset_ptr<void>>,
boost::interprocess::null_index>;
// boost::interprocess::iset_index>;
using RBTreeBestFitSegment = boost::interprocess::basic_managed_shared_memory<char,
boost::interprocess::rbtree_best_fit<boost::interprocess::mutex_family>,
boost::interprocess::rbtree_best_fit<boost::interprocess::mutex_family, boost::interprocess::offset_ptr<void>>,
boost::interprocess::null_index>;
// boost::interprocess::iset_index>;
@@ -146,6 +146,7 @@ struct MetaHeader
mutable boost::interprocess::managed_shared_memory::handle_t fShared;
uint16_t fRegionId;
mutable uint16_t fSegmentId;
bool fManaged;
};
#ifdef FAIRMQ_DEBUG_MODE
@@ -210,8 +211,10 @@ struct RegionBlock
// a hash of user id + session id, truncated to 8 characters (to accommodate for name size limit on some systems (MacOS)).
std::string makeShmIdStr(const std::string& sessionId, const std::string& userId);
std::string makeShmIdStr(const std::string& sessionId);
std::string makeShmIdStr(uint64_t val);
uint64_t makeShmIdUint64(const std::string& sessionId);
struct SegmentSize : public boost::static_visitor<size_t>
{
template<typename S>