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crate::ix!();
/**
| Access to the block database (blocks/index/)
|
*/
pub struct BlockTreeDB {
base: DBWrapper,
}
impl BlockTreeDB {
pub fn write_batch_sync(&mut self,
file_info: &Vec<(i32,*const BlockFileInfo)>,
n_last_file: i32,
blockinfo: &Vec<*const BlockIndex>) -> bool {
todo!();
/*
CDBBatch batch(*this);
for (std::vector<std::pair<int, const BlockFileInfo*> >::const_iterator it=fileInfo.begin(); it != fileInfo.end(); it++) {
batch.Write(std::make_pair(DB_BLOCK_FILES, it->first), *it->second);
}
batch.Write(DB_LAST_BLOCK, nLastFile);
for (std::vector<const BlockIndex*>::const_iterator it=blockinfo.begin(); it != blockinfo.end(); it++) {
batch.Write(std::make_pair(DB_BLOCK_INDEX, (*it)->GetBlockHash()), CDiskBlockIndex(*it));
}
return WriteBatch(batch, true);
*/
}
pub fn write_flag(&mut self,
name: &String,
value: bool) -> bool {
todo!();
/*
return Write(std::make_pair(DB_FLAG, name), fValue ? uint8_t{'1'} : uint8_t{'0'});
*/
}
pub fn read_flag(&mut self,
name: &String,
value: &mut bool) -> bool {
todo!();
/*
uint8_t ch;
if (!Read(std::make_pair(DB_FLAG, name), ch))
return false;
fValue = ch == uint8_t{'1'};
return true;
*/
}
pub fn load_block_index_guts(&mut self,
consensus_params: &ChainConsensusParams,
insert_block_index: fn(_0: &u256) -> *mut BlockIndex) -> bool {
todo!();
/*
std::unique_ptr<CDBIterator> pcursor(NewIterator());
pcursor->Seek(std::make_pair(DB_BLOCK_INDEX, uint256()));
// Load m_block_index
while (pcursor->Valid()) {
if (ShutdownRequested()) return false;
std::pair<uint8_t, uint256> key;
if (pcursor->GetKey(key) && key.first == DB_BLOCK_INDEX) {
CDiskBlockIndex diskindex;
if (pcursor->GetValue(diskindex)) {
// Construct block index object
BlockIndex* pindexNew = insertBlockIndex(diskindex.GetBlockHash());
pindexNew->pprev = insertBlockIndex(diskindex.hashPrev);
pindexNew->nHeight = diskindex.nHeight;
pindexNew->nFile = diskindex.nFile;
pindexNew->nDataPos = diskindex.nDataPos;
pindexNew->nUndoPos = diskindex.nUndoPos;
pindexNew->nVersion = diskindex.nVersion;
pindexNew->hashMerkleRoot = diskindex.hashMerkleRoot;
pindexNew->nTime = diskindex.nTime;
pindexNew->nBits = diskindex.nBits;
pindexNew->nNonce = diskindex.nNonce;
pindexNew->nStatus = diskindex.nStatus;
pindexNew->nTx = diskindex.nTx;
if (!CheckProofOfWork(pindexNew->GetBlockHash(), pindexNew->nBits, consensusParams))
return error("%s: CheckProofOfWork failed: %s", __func__, pindexNew->ToString());
pcursor->Next();
} else {
return error("%s: failed to read value", __func__);
}
} else {
break;
}
}
return true;
*/
}
pub fn new(
n_cache_size: usize,
memory: Option<bool>,
wipe: Option<bool>) -> Self {
let memory: bool = memory.unwrap_or(false);
let wipe: bool = wipe.unwrap_or(false);
todo!();
/*
: CDBWrapper(gArgs.GetDataDirNet() / "blocks" / "index", nCacheSize, fMemory, fWipe)
*/
}
pub fn read_block_file_info(&mut self,
n_file: i32,
info: &mut BlockFileInfo) -> bool {
todo!();
/*
return Read(std::make_pair(DB_BLOCK_FILES, nFile), info);
*/
}
pub fn write_reindexing(&mut self, reindexing: bool) -> bool {
todo!();
/*
if (fReindexing)
return Write(DB_REINDEX_FLAG, uint8_t{'1'});
else
return Erase(DB_REINDEX_FLAG);
*/
}
pub fn read_reindexing(&mut self, reindexing: &mut bool) {
todo!();
/*
fReindexing = Exists(DB_REINDEX_FLAG);
*/
}
pub fn read_last_block_file(&mut self, n_file: &mut i32) -> bool {
todo!();
/*
return Read(DB_LAST_BLOCK, nFile);
*/
}
}