72b434b Thread Sanitizer warning

72b434b_warning.txt

==================
WARNING: ThreadSanitizer: data race (pid=8785)
  Read of size 8 at 0x7b4c00000640 by thread T1:
    #0 quill::detail::UnboundedSPSCEventQueue<quill::detail::BaseEvent>::try_pop() /home/xander/dev/quill/quill/include/quill/detail/spsc_queue/UnboundedSPSCEventQueue.h:140 (test.exe+0x165fc)
    #1 quill::detail::BackendWorker::_read_event_queue(quill::detail::ThreadContext*) /home/xander/dev/quill/quill/include/quill/detail/backend/BackendWorker.h:352 (test.exe+0x165fc)
    #2 quill::detail::BackendWorker::_populate_priority_queue(std::vector<quill::detail::ThreadContext*, quill::detail::CacheAlignedAllocator<quill::detail::ThreadContext*> > const&) /home/xander/dev/quill/quill/include/quill/detail/backend/BackendWorker.h:335 (test.exe+0x16516)
    #3 quill::detail::BackendWorker::_exit() /home/xander/dev/quill/quill/include/quill/detail/backend/BackendWorker.h:605 (test.exe+0x18643)
    #4 quill::detail::BackendWorker::run()::{lambda()#1}::operator()() const::{lambda()#1}::operator()() const /home/xander/dev/quill/quill/include/quill/detail/backend/BackendWorker.h:307 (test.exe+0x15da8)
    #5 void std::__invoke_impl<void, quill::detail::BackendWorker::run()::{lambda()#1}::operator()() const::{lambda()#1}>(std::__invoke_other, quill::detail::BackendWorker::run()::{lambda()#1}::operator()() const::{lambda()#1}&&) /usr/include/c++/10/bits/invoke.h:60 (test.exe+0x2dbfe)
    #6 std::__invoke_result<quill::detail::BackendWorker::run()::{lambda()#1}::operator()() const::{lambda()#1}>::type std::__invoke<quill::detail::BackendWorker::run()::{lambda()#1}::operator()() const::{lambda()#1}>(quill::detail::BackendWorker::run()::{lambda()#1}::operator()() const::{lambda()#1}&&, (std::__invoke_result&&)...) /usr/include/c++/10/bits/invoke.h:95 (test.exe+0x2d65e)
    #7 void std::thread::_Invoker<std::tuple<quill::detail::BackendWorker::run()::{lambda()#1}::operator()() const::{lambda()#1}> >::_M_invoke<0ul>(std::_Index_tuple<0ul>) /usr/include/c++/10/thread:264 (test.exe+0x2d2de)
    #8 std::thread::_Invoker<std::tuple<quill::detail::BackendWorker::run()::{lambda()#1}::operator()() const::{lambda()#1}> >::operator()() /usr/include/c++/10/thread:271 (test.exe+0x2ca42)
    #9 std::thread::_State_impl<std::thread::_Invoker<std::tuple<quill::detail::BackendWorker::run()::{lambda()#1}::operator()() const::{lambda()#1}> > >::_M_run() /usr/include/c++/10/thread:215 (test.exe+0x2bbe8)
    #10 <null> <null> (libstdc++.so.6+0xd0e8f)

  Previous write of size 8 at 0x7b4c00000640 by main thread:
    #0 posix_memalign <null> (libtsan.so.0+0x2f579)
    #1 quill::detail::aligned_alloc(unsigned long, unsigned long) <null> (test.exe+0x34176)
    #2 initialize_logging() /home/xander/dev/plutus_model/test.cpp:35 (test.exe+0x11f7e)
    #3 main /home/xander/dev/plutus_model/test.cpp:40 (test.exe+0x12142)

  As if synchronized via sleep:
    #0 nanosleep <null> (libtsan.so.0+0x61cbc)
    #1 void std::this_thread::sleep_for<long, std::ratio<1l, 1000000000l> >(std::chrono::duration<long, std::ratio<1l, 1000000000l> > const&) /usr/include/c++/10/thread:401 (test.exe+0x1bad3)
    #2 quill::detail::BackendWorker::_main_loop() /home/xander/dev/quill/quill/include/quill/detail/backend/BackendWorker.h:571 (test.exe+0x1857b)
    #3 quill::detail::BackendWorker::run()::{lambda()#1}::operator()() const::{lambda()#1}::operator()() const /home/xander/dev/quill/quill/include/quill/detail/backend/BackendWorker.h:296 (test.exe+0x15d8b)
    #4 void std::__invoke_impl<void, quill::detail::BackendWorker::run()::{lambda()#1}::operator()() const::{lambda()#1}>(std::__invoke_other, quill::detail::BackendWorker::run()::{lambda()#1}::operator()() const::{lambda()#1}&&) /usr/include/c++/10/bits/invoke.h:60 (test.exe+0x2dbfe)
    #5 std::__invoke_result<quill::detail::BackendWorker::run()::{lambda()#1}::operator()() const::{lambda()#1}>::type std::__invoke<quill::detail::BackendWorker::run()::{lambda()#1}::operator()() const::{lambda()#1}>(quill::detail::BackendWorker::run()::{lambda()#1}::operator()() const::{lambda()#1}&&, (std::__invoke_result&&)...) /usr/include/c++/10/bits/invoke.h:95 (test.exe+0x2d65e)
    #6 void std::thread::_Invoker<std::tuple<quill::detail::BackendWorker::run()::{lambda()#1}::operator()() const::{lambda()#1}> >::_M_invoke<0ul>(std::_Index_tuple<0ul>) /usr/include/c++/10/thread:264 (test.exe+0x2d2de)
    #7 std::thread::_Invoker<std::tuple<quill::detail::BackendWorker::run()::{lambda()#1}::operator()() const::{lambda()#1}> >::operator()() /usr/include/c++/10/thread:271 (test.exe+0x2ca42)
    #8 std::thread::_State_impl<std::thread::_Invoker<std::tuple<quill::detail::BackendWorker::run()::{lambda()#1}::operator()() const::{lambda()#1}> > >::_M_run() /usr/include/c++/10/thread:215 (test.exe+0x2bbe8)
    #9 <null> <null> (libstdc++.so.6+0xd0e8f)

  Location is heap block of size 448 at 0x7b4c00000540 allocated by main thread:
    #0 posix_memalign <null> (libtsan.so.0+0x2f579)
    #1 quill::detail::aligned_alloc(unsigned long, unsigned long) <null> (test.exe+0x34176)
    #2 initialize_logging() /home/xander/dev/plutus_model/test.cpp:35 (test.exe+0x11f7e)
    #3 main /home/xander/dev/plutus_model/test.cpp:40 (test.exe+0x12142)

  Thread T1 'Quill_Backend' (tid=8787, running) created by main thread at:
    #0 pthread_create <null> (libtsan.so.0+0x5d445)
    #1 std::thread::_M_start_thread(std::unique_ptr<std::thread::_State, std::default_delete<std::thread::_State> >, void (*)()) <null> (libstdc++.so.6+0xd1124)
    #2 quill::detail::BackendWorker::run()::{lambda()#1}::operator()() const /home/xander/dev/quill/quill/include/quill/detail/backend/BackendWorker.h:315 (test.exe+0x15a8a)
    #3 void std::__invoke_impl<void, quill::detail::BackendWorker::run()::{lambda()#1}>(std::__invoke_other, quill::detail::BackendWorker::run()::{lambda()#1}&&) /usr/include/c++/10/bits/invoke.h:60 (test.exe+0x22da9)
    #4 std::__invoke_result<quill::detail::BackendWorker::run()::{lambda()#1}>::type std::__invoke<quill::detail::BackendWorker::run()::{lambda()#1}>(std::__invoke_result&&, (quill::detail::BackendWorker::run()::{lambda()#1}&&)...) /usr/include/c++/10/bits/invoke.h:95 (test.exe+0x1edf3)
    #5 std::call_once<quill::detail::BackendWorker::run()::{lambda()#1}>(std::once_flag&, quill::detail::BackendWorker::run()::{lambda()#1}&&)::{lambda()#1}::operator()() const /usr/include/c++/10/mutex:717 (test.exe+0x1ad7b)
    #6 std::call_once<quill::detail::BackendWorker::run()::{lambda()#1}>(std::once_flag&, quill::detail::BackendWorker::run()::{lambda()#1}&&)::{lambda()#2}::operator()() const /usr/include/c++/10/mutex:722 (test.exe+0x1ade2)
    #7 std::call_once<quill::detail::BackendWorker::run()::{lambda()#1}>(std::once_flag&, quill::detail::BackendWorker::run()::{lambda()#1}&&)::{lambda()#2}::_FUN() /usr/include/c++/10/mutex:722 (test.exe+0x1ae21)
    #8 pthread_once <null> (libtsan.so.0+0x40784)
    #9 __gthread_once /usr/include/x86_64-linux-gnu/c++/10/bits/gthr-default.h:700 (test.exe+0x130f7)
    #10 void std::call_once<quill::detail::BackendWorker::run()::{lambda()#1}>(std::once_flag&, quill::detail::BackendWorker::run()::{lambda()#1}&&) /usr/include/c++/10/mutex:729 (test.exe+0x1af14)
    #11 quill::detail::BackendWorker::run() /home/xander/dev/quill/quill/include/quill/detail/backend/BackendWorker.h:249 (test.exe+0x1633a)
    #12 quill::detail::LogManager::start_backend_worker(bool, std::initializer_list<int> const&) /home/xander/dev/quill/quill/include/quill/detail/LogManager.h:150 (test.exe+0x18729)
    #13 quill::start(bool, std::initializer_list<int>) /home/xander/dev/quill/quill/include/quill/Quill.h:60 (test.exe+0x187df)
    #14 initialize_logging() /home/xander/dev/plutus_model/test.cpp:30 (test.exe+0x11eba)
    #15 main /home/xander/dev/plutus_model/test.cpp:40 (test.exe+0x12142)

SUMMARY: ThreadSanitizer: data race /home/xander/dev/quill/quill/include/quill/detail/spsc_queue/UnboundedSPSCEventQueue.h:140 in quill::detail::UnboundedSPSCEventQueue<quill::detail::BaseEvent>::try_pop()
==================
ThreadSanitizer: reported 1 warnings