libcryfs/implementations/onblocks/datatreestore/DataTreeStore.cpp
2015-07-21 15:24:49 +02:00

47 lines
1.2 KiB
C++

#include "DataTreeStore.h"
#include "../datanodestore/DataNodeStore.h"
#include "../datanodestore/DataLeafNode.h"
#include "DataTree.h"
using cpputils::unique_ref;
using cpputils::make_unique_ref;
using boost::optional;
using boost::none;
using blobstore::onblocks::datanodestore::DataNodeStore;
using blobstore::onblocks::datanodestore::DataNode;
namespace blobstore {
namespace onblocks {
namespace datatreestore {
DataTreeStore::DataTreeStore(unique_ref<DataNodeStore> nodeStore)
: _nodeStore(std::move(nodeStore)) {
}
DataTreeStore::~DataTreeStore() {
}
optional<unique_ref<DataTree>> DataTreeStore::load(const blockstore::Key &key) {
auto node = _nodeStore->load(key);
if (node == none) {
return none;
}
return make_unique_ref<DataTree>(_nodeStore.get(), std::move(*node));
}
unique_ref<DataTree> DataTreeStore::createNewTree() {
auto newleaf = _nodeStore->createNewLeafNode();
return make_unique_ref<DataTree>(_nodeStore.get(), std::move(newleaf));
}
void DataTreeStore::remove(unique_ref<DataTree> tree) {
auto root = tree->releaseRootNode();
cpputils::destruct(std::move(tree)); // Destruct tree
_nodeStore->removeSubtree(std::move(root));
}
}
}
}