#include "SynchronizedBlockStore.h"

using std::unique_ptr;
using std::make_unique;
using std::string;

namespace blockstore {
namespace synchronized {

SynchronizedBlockStore::SynchronizedBlockStore(unique_ptr<BlockStore> baseBlockStore)
 : _baseBlockStore(std::move(baseBlockStore)),
   _openBlockList() {
}

unique_ptr<Block> SynchronizedBlockStore::create(size_t size) {
  return _openBlockList.insert(_baseBlockStore->create(size));
}

unique_ptr<Block> SynchronizedBlockStore::load(const Key &key) {
  return _openBlockList.acquire(key, [this, key] {
    return _baseBlockStore->load(key);
  });
}

void SynchronizedBlockStore::remove(unique_ptr<Block> block) {
  //TODO
  //Remove from openBlockList, therefore close it, and second parameter is meant to be an onClose event handler
  //(called after all threads wanting to work with the block have been satisfied).
  //But is quite unreadable here this way...
  //_openBlockList.remove(std::move(block), [] (unique_ptr<Block> block) {
  //  _baseBlockStore->remove(block);
  //});
}

uint64_t SynchronizedBlockStore::numBlocks() const {
  return _baseBlockStore->numBlocks();
}

}
}