Method freeBytes

bolt/common/memory/MemoryPool.cpp:1296–1310

  std::lock_guard<std::mutex> l(mutex_);
  if (capacity_ == kMaxMemory) {
    return 0;
  }
  if (capacity_ < reservationBytes_) {
    // NOTE: the memory reservation could be temporarily larger than its
    // capacity if this memory pool is under memory arbitration processing.
    return 0;
  }
  return capacity_ - reservationBytes_;
}

void MemoryPoolImpl::setReclaimer(std::unique_ptr<MemoryReclaimer> reclaimer) {
  BOLT_CHECK_NOT_NULL(reclaimer);
  if (parent_ != nullptr) {
    BOLT_CHECK_NOT_NULL(
        parent_->reclaimer(),
        "Child memory pool {} shall only set reclaimer if its parent {} has also set",
        name_,
        parent_->name());