Function handler

libminifi/src/utils/BackTrace.cpp:151–155

}
#ifdef HAS_EXECINFO
void handler(int /*signr*/, siginfo_t* /*info*/, void* /*secret*/) {
  std::unique_lock<std::mutex> lock(TraceResolver::getResolver().lock());
  pull_trace();
  TraceResolver::getResolver().notifyPullTracesDone(lock);
}
#endif

void emplace_handler() {