Function default_memory_pool

cpp/src/arrow/memory_pool.cc:669–686

}

MemoryPool* default_memory_pool() {
  auto backend = DefaultBackend();
  switch (backend) {
    case MemoryPoolBackend::System:
      return global_state.system_memory_pool();
#ifdef ARROW_JEMALLOC
    case MemoryPoolBackend::Jemalloc:
      return global_state.jemalloc_memory_pool();
#endif
#ifdef ARROW_MIMALLOC
    case MemoryPoolBackend::Mimalloc:
      return global_state.mimalloc_memory_pool();
#endif
    default:
      ARROW_LOG(FATAL) << "Internal error: cannot create default memory pool";
      return nullptr;
  }
}

#ifndef ARROW_JEMALLOC
Status jemalloc_set_decay_ms(int ms) {