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shm: ResetContent(): reset data after recreating the metadata

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This commit is contained in:
Alexey Rybalchenko 2022-05-28 14:05:41 +02:00
parent d2aa3b6bb0
commit c62e7edce6
1 changed files with 12 additions and 2 deletions
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14
fairmq/shmem/Monitor.cxx
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@ -678,6 +678,9 @@ void Monitor::ResetContent(const ShmId& shmIdT, bool verbose /* = true */)
size_t size = segment.get_segment_manager()->get_size();
new(ptr) segment_manager<char, simple_seq_fit<mutex_family, offset_ptr<void>>, null_index>(size);
}
if (verbose) {
cout << "Done." << endl;
}
} catch (bie& e) {
if (verbose) {
cout << "Error resetting content of segment '" << std::string("fmq_" + shmId + "_m_" + to_string(s.first)) << "': " << e.what() << endl;
@ -722,13 +725,15 @@ void Monitor::ResetContent(const ShmId& shmIdT, const std::vector<SegmentConfig>
std::string shmId = shmIdT.shmId;
std::string managementSegmentName("fmq_" + shmId + "_mng");
// reset managed segments
ResetContent(shmIdT, verbose);
// delete management segment
cout << "deleting management segment" << endl;
Remove<bipc::shared_memory_object>(managementSegmentName, verbose);
// recreate management segment
cout << "recreating management segment..." << endl;
managed_shared_memory mngSegment(create_only, managementSegmentName.c_str(), kManagementSegmentSize);
cout << "done." << endl;
// fill management segment with segment & region infos
cout << "filling management segment with managed segment configs..." << endl;
for (const auto& s : segmentCfgs) {
if (s.allocationAlgorithm == "rbtree_best_fit") {
Segment::Register(shmId, s.id, AllocationAlgorithm::rbtree_best_fit);
@ -739,9 +744,14 @@ void Monitor::ResetContent(const ShmId& shmIdT, const std::vector<SegmentConfig>
throw MonitorError("Unknown allocation algorithm provided: " + s.allocationAlgorithm);
}
}
cout << "done." << endl;
cout << "filling management segment with unmanaged region configs..." << endl;
for (const auto& r : regionCfgs) {
fair::mq::shmem::UnmanagedRegion::Register(shmId, r);
}
cout << "done." << endl;
// reset managed segments
ResetContent(shmIdT, verbose);
}
void Monitor::ResetContent(const SessionId& sessionId, const std::vector<SegmentConfig>& segmentCfgs, const std::vector<RegionConfig>& regionCfgs, bool verbose /* = true */)