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Fix aggregate initialization issue before C++20

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Use value initialization to prevent

error: temporary of type ... has protected destructor

see https://stackoverflow.com/a/56745475
This commit is contained in:
Dennis Klein 2021-03-23 13:08:47 +01:00 committed by Dennis Klein
parent 21d6cf9830
commit 4b6cf8b181
2 changed files with 14 additions and 14 deletions
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24
fairmq/shmem/Manager.h
View File

@ -146,8 +146,8 @@ class Manager
ss << "Opened ";
}
ss << "shared memory segment '" << "fmq_" << fShmId << "_m_" << fSegmentId << "'."
<< " Size: " << boost::apply_visitor(SegmentSize{}, fSegments.at(fSegmentId)) << " bytes."
<< " Available: " << boost::apply_visitor(SegmentFreeMemory{}, fSegments.at(fSegmentId)) << " bytes."
<< " Size: " << boost::apply_visitor(SegmentSize(), fSegments.at(fSegmentId)) << " bytes."
<< " Available: " << boost::apply_visitor(SegmentFreeMemory(), fSegments.at(fSegmentId)) << " bytes."
<< " Allocation algorithm: " << allocationAlgorithm;
LOG(debug) << ss.str();
} catch(interprocess_exception& bie) {
@ -157,14 +157,14 @@ class Manager
if (mlockSegment) {
LOG(debug) << "Locking the managed segment memory pages...";
if (mlock(boost::apply_visitor(SegmentAddress{}, fSegments.at(fSegmentId)), boost::apply_visitor(SegmentSize{}, fSegments.at(fSegmentId))) == -1) {
if (mlock(boost::apply_visitor(SegmentAddress(), fSegments.at(fSegmentId)), boost::apply_visitor(SegmentSize(), fSegments.at(fSegmentId))) == -1) {
LOG(error) << "Could not lock the managed segment memory. Code: " << errno << ", reason: " << strerror(errno);
}
LOG(debug) << "Successfully locked the managed segment memory pages.";
}
if (zeroSegment) {
LOG(debug) << "Zeroing the managed segment free memory...";
boost::apply_visitor(SegmentMemoryZeroer{}, fSegments.at(fSegmentId));
boost::apply_visitor(SegmentMemoryZeroer(), fSegments.at(fSegmentId));
LOG(debug) << "Successfully zeroed the managed segment free memory.";
}
@ -384,8 +384,8 @@ class Manager
info.managed = true;
info.id = e.first;
info.event = RegionEvent::created;
info.ptr = boost::apply_visitor(SegmentAddress{}, fSegments.at(e.first));
info.size = boost::apply_visitor(SegmentSize{}, fSegments.at(e.first));
info.ptr = boost::apply_visitor(SegmentAddress(), fSegments.at(e.first));
info.size = boost::apply_visitor(SegmentSize(), fSegments.at(e.first));
result.push_back(info);
} catch (const std::out_of_range& oor) {
LOG(error) << "could not find segment with id " << e.first;
@ -512,11 +512,11 @@ class Manager
boost::interprocess::managed_shared_memory::handle_t GetHandleFromAddress(const void* ptr, uint16_t segmentId) const
{
return boost::apply_visitor(SegmentHandleFromAddress{ptr}, fSegments.at(segmentId));
return boost::apply_visitor(SegmentHandleFromAddress(ptr), fSegments.at(segmentId));
}
void* GetAddressFromHandle(const boost::interprocess::managed_shared_memory::handle_t handle, uint16_t segmentId) const
{
return boost::apply_visitor(SegmentAddressFromHandle{handle}, fSegments.at(segmentId));
return boost::apply_visitor(SegmentAddressFromHandle(handle), fSegments.at(segmentId));
}
char* Allocate(const size_t size, size_t alignment = 0)
@ -529,7 +529,7 @@ class Manager
// boost::interprocess::managed_shared_memory::size_type actualSize = size;
// char* hint = 0; // unused for boost::interprocess::allocate_new
// ptr = fSegments.at(fSegmentId).allocation_command<char>(boost::interprocess::allocate_new, size, actualSize, hint);
size_t segmentSize = boost::apply_visitor(SegmentSize{}, fSegments.at(fSegmentId));
size_t segmentSize = boost::apply_visitor(SegmentSize(), fSegments.at(fSegmentId));
if (size > segmentSize) {
throw MessageBadAlloc(tools::ToString("Requested message size (", size, ") exceeds segment size (", segmentSize, ")"));
}
@ -541,7 +541,7 @@ class Manager
} catch (boost::interprocess::bad_alloc& ba) {
// LOG(warn) << "Shared memory full...";
if (ThrowingOnBadAlloc()) {
throw MessageBadAlloc(tools::ToString("shmem: could not create a message of size ", size, ", alignment: ", (alignment != 0) ? std::to_string(alignment) : "default", ", free memory: ", boost::apply_visitor(SegmentFreeMemory{}, fSegments.at(fSegmentId))));
throw MessageBadAlloc(tools::ToString("shmem: could not create a message of size ", size, ", alignment: ", (alignment != 0) ? std::to_string(alignment) : "default", ", free memory: ", boost::apply_visitor(SegmentFreeMemory(), fSegments.at(fSegmentId))));
}
// rateLimiter.maybe_sleep();
std::this_thread::sleep_for(std::chrono::milliseconds(50));
@ -569,7 +569,7 @@ class Manager
void Deallocate(boost::interprocess::managed_shared_memory::handle_t handle, uint16_t segmentId)
{
boost::apply_visitor(SegmentDeallocate{GetAddressFromHandle(handle, segmentId)}, fSegments.at(segmentId));
boost::apply_visitor(SegmentDeallocate(GetAddressFromHandle(handle, segmentId)), fSegments.at(segmentId));
#ifdef FAIRMQ_DEBUG_MODE
boost::interprocess::scoped_lock<boost::interprocess::named_mutex> lock(fShmMtx);
DecrementShmMsgCounter(segmentId);
@ -583,7 +583,7 @@ class Manager
char* ShrinkInPlace(size_t newSize, char* localPtr, uint16_t segmentId)
{
return boost::apply_visitor(SegmentBufferShrink{newSize, localPtr}, fSegments.at(segmentId));
return boost::apply_visitor(SegmentBufferShrink(newSize, localPtr), fSegments.at(segmentId));
}
uint16_t GetSegmentId() const { return fSegmentId; }

4
fairmq/shmem/Monitor.cxx
View File

@ -306,8 +306,8 @@ void Monitor::CheckSegment()
ss << "shm id: " << fShmId
<< ", devices: " << numDevices << ", segments:\n";
for (const auto& s : segments) {
size_t free = boost::apply_visitor(SegmentFreeMemory{}, s.second);
size_t total = boost::apply_visitor(SegmentSize{}, s.second);
size_t free = boost::apply_visitor(SegmentFreeMemory(), s.second);
size_t total = boost::apply_visitor(SegmentSize(), s.second);
size_t used = total - free;
ss << " [" << s.first
<< "]: total: " << total