Method completeSlabRelease

cachelib/allocator/memory/MemoryPool.cpp:536–565

}

void MemoryPool::completeSlabRelease(const SlabReleaseContext& context) {
  if (context.isReleased()) {
    // the slab release is already completed.
    return;
  }

  if (context.getReceiverClassId() != Slab::kInvalidClassId &&
      context.getMode() != SlabReleaseMode::kRebalance) {
    throw std::invalid_argument(fmt::format(
        "A valid receiver {} is specified but the rebalancing mode is "
        "not SlabReleaseMode::kRebalance",
        context.getReceiverClassId()));
  }

  auto slab = context.getSlab();
  auto mode = context.getMode();
  auto classId = context.getClassId();
  auto zeroOnRelease = context.shouldZeroOnRelease();
  auto& allocClass = getAllocationClassFor(classId);

  // complete the slab release process.
  allocClass.completeSlabRelease(context);

  XDCHECK_EQ(slabAllocator_.getSlabHeader(slab)->getPoolId(), getId());
  XDCHECK_EQ(slabAllocator_.getSlabHeader(slab)->getClassId(),
             Slab::kInvalidClassId);
  XDCHECK_EQ(slabAllocator_.getSlabHeader(slab)->getAllocSize(), 0u);

  releaseSlab(mode, slab, zeroOnRelease, context.getReceiverClassId());
}

MPStats MemoryPool::getStats() const {
  LockHolder l(lock_);