aboutsummaryrefslogtreecommitdiff
path: root/src
diff options
context:
space:
mode:
Diffstat (limited to 'src')
-rw-r--r--src/leveldbwrapper.cpp9
-rw-r--r--src/leveldbwrapper.h82
-rw-r--r--src/test/leveldbwrapper_tests.cpp81
-rw-r--r--src/txdb.cpp67
4 files changed, 185 insertions, 54 deletions
diff --git a/src/leveldbwrapper.cpp b/src/leveldbwrapper.cpp
index ce96b5c8aa..32c9345be5 100644
--- a/src/leveldbwrapper.cpp
+++ b/src/leveldbwrapper.cpp
@@ -131,7 +131,7 @@ std::vector<unsigned char> CLevelDBWrapper::CreateObfuscateKey() const
bool CLevelDBWrapper::IsEmpty()
{
- boost::scoped_ptr<leveldb::Iterator> it(NewIterator());
+ boost::scoped_ptr<CLevelDBIterator> it(NewIterator());
it->SeekToFirst();
return !(it->Valid());
}
@@ -145,3 +145,10 @@ std::string CLevelDBWrapper::GetObfuscateKeyHex() const
{
return HexStr(obfuscate_key);
}
+
+CLevelDBIterator::~CLevelDBIterator() { delete piter; }
+bool CLevelDBIterator::Valid() { return piter->Valid(); }
+void CLevelDBIterator::SeekToFirst() { piter->SeekToFirst(); }
+void CLevelDBIterator::SeekToLast() { piter->SeekToLast(); }
+void CLevelDBIterator::Next() { piter->Next(); }
+void CLevelDBIterator::Prev() { piter->Prev(); }
diff --git a/src/leveldbwrapper.h b/src/leveldbwrapper.h
index f5c463830c..60101e18cc 100644
--- a/src/leveldbwrapper.h
+++ b/src/leveldbwrapper.h
@@ -32,13 +32,13 @@ class CLevelDBBatch
private:
leveldb::WriteBatch batch;
- const std::vector<unsigned char> obfuscate_key;
+ const std::vector<unsigned char> *obfuscate_key;
public:
/**
* @param[in] obfuscate_key If passed, XOR data with this key.
*/
- CLevelDBBatch(const std::vector<unsigned char>& obfuscate_key) : obfuscate_key(obfuscate_key) { };
+ CLevelDBBatch(const std::vector<unsigned char> *obfuscate_key) : obfuscate_key(obfuscate_key) { };
template <typename K, typename V>
void Write(const K& key, const V& value)
@@ -51,7 +51,7 @@ public:
CDataStream ssValue(SER_DISK, CLIENT_VERSION);
ssValue.reserve(ssValue.GetSerializeSize(value));
ssValue << value;
- ssValue.Xor(obfuscate_key);
+ ssValue.Xor(*obfuscate_key);
leveldb::Slice slValue(&ssValue[0], ssValue.size());
batch.Put(slKey, slValue);
@@ -68,7 +68,72 @@ public:
batch.Delete(slKey);
}
};
+
+class CLevelDBIterator
+{
+private:
+ leveldb::Iterator *piter;
+ const std::vector<unsigned char> *obfuscate_key;
+
+public:
+
+ /**
+ * @param[in] piterIn The original leveldb iterator.
+ * @param[in] obfuscate_key If passed, XOR data with this key.
+ */
+ CLevelDBIterator(leveldb::Iterator *piterIn, const std::vector<unsigned char>* obfuscate_key) :
+ piter(piterIn), obfuscate_key(obfuscate_key) { };
+ ~CLevelDBIterator();
+
+ bool Valid();
+ void SeekToFirst();
+ void SeekToLast();
+
+ template<typename K> void Seek(const K& key) {
+ CDataStream ssKey(SER_DISK, CLIENT_VERSION);
+ ssKey.reserve(ssKey.GetSerializeSize(key));
+ ssKey << key;
+ leveldb::Slice slKey(&ssKey[0], ssKey.size());
+ piter->Seek(slKey);
+ }
+
+ void Next();
+ void Prev();
+
+ template<typename K> bool GetKey(K& key) {
+ leveldb::Slice slKey = piter->key();
+ try {
+ CDataStream ssKey(slKey.data(), slKey.data() + slKey.size(), SER_DISK, CLIENT_VERSION);
+ ssKey >> key;
+ } catch(std::exception &e) {
+ return false;
+ }
+ return true;
+ }
+
+ unsigned int GetKeySize() {
+ return piter->key().size();
+ }
+
+ template<typename V> bool GetValue(V& value) {
+ leveldb::Slice slValue = piter->value();
+ try {
+ CDataStream ssValue(slValue.data(), slValue.data() + slValue.size(), SER_DISK, CLIENT_VERSION);
+ ssValue.Xor(*obfuscate_key);
+ ssValue >> value;
+ } catch(std::exception &e) {
+ return false;
+ }
+ return true;
+ }
+
+ unsigned int GetValueSize() {
+ return piter->value().size();
+ }
+
+};
+
class CLevelDBWrapper
{
private:
@@ -145,7 +210,7 @@ public:
template <typename K, typename V>
bool Write(const K& key, const V& value, bool fSync = false) throw(leveldb_error)
{
- CLevelDBBatch batch(obfuscate_key);
+ CLevelDBBatch batch(&obfuscate_key);
batch.Write(key, value);
return WriteBatch(batch, fSync);
}
@@ -172,7 +237,7 @@ public:
template <typename K>
bool Erase(const K& key, bool fSync = false) throw(leveldb_error)
{
- CLevelDBBatch batch(obfuscate_key);
+ CLevelDBBatch batch(&obfuscate_key);
batch.Erase(key);
return WriteBatch(batch, fSync);
}
@@ -187,14 +252,13 @@ public:
bool Sync() throw(leveldb_error)
{
- CLevelDBBatch batch(obfuscate_key);
+ CLevelDBBatch batch(&obfuscate_key);
return WriteBatch(batch, true);
}
- // not exactly clean encapsulation, but it's easiest for now
- leveldb::Iterator* NewIterator()
+ CLevelDBIterator *NewIterator()
{
- return pdb->NewIterator(iteroptions);
+ return new CLevelDBIterator(pdb->NewIterator(iteroptions), &obfuscate_key);
}
/**
diff --git a/src/test/leveldbwrapper_tests.cpp b/src/test/leveldbwrapper_tests.cpp
index db04f3ea48..606313b004 100644
--- a/src/test/leveldbwrapper_tests.cpp
+++ b/src/test/leveldbwrapper_tests.cpp
@@ -46,7 +46,86 @@ BOOST_AUTO_TEST_CASE(leveldbwrapper)
BOOST_CHECK_EQUAL(res.ToString(), in.ToString());
}
}
-
+
+// Test batch operations
+BOOST_AUTO_TEST_CASE(leveldbwrapper_batch)
+{
+ // Perform tests both obfuscated and non-obfuscated.
+ for (int i = 0; i < 2; i++) {
+ bool obfuscate = (bool)i;
+ path ph = temp_directory_path() / unique_path();
+ CLevelDBWrapper dbw(ph, (1 << 20), true, false, obfuscate);
+
+ char key = 'i';
+ uint256 in = GetRandHash();
+ char key2 = 'j';
+ uint256 in2 = GetRandHash();
+ char key3 = 'k';
+ uint256 in3 = GetRandHash();
+
+ uint256 res;
+ CLevelDBBatch batch(&dbw.GetObfuscateKey());
+
+ batch.Write(key, in);
+ batch.Write(key2, in2);
+ batch.Write(key3, in3);
+
+ // Remove key3 before it's even been written
+ batch.Erase(key3);
+
+ dbw.WriteBatch(batch);
+
+ BOOST_CHECK(dbw.Read(key, res));
+ BOOST_CHECK_EQUAL(res.ToString(), in.ToString());
+ BOOST_CHECK(dbw.Read(key2, res));
+ BOOST_CHECK_EQUAL(res.ToString(), in2.ToString());
+
+ // key3 never should've been written
+ BOOST_CHECK(dbw.Read(key3, res) == false);
+ }
+}
+
+BOOST_AUTO_TEST_CASE(leveldbwrapper_iterator)
+{
+ // Perform tests both obfuscated and non-obfuscated.
+ for (int i = 0; i < 2; i++) {
+ bool obfuscate = (bool)i;
+ path ph = temp_directory_path() / unique_path();
+ CLevelDBWrapper dbw(ph, (1 << 20), true, false, obfuscate);
+
+ // The two keys are intentionally chosen for ordering
+ char key = 'j';
+ uint256 in = GetRandHash();
+ BOOST_CHECK(dbw.Write(key, in));
+ char key2 = 'k';
+ uint256 in2 = GetRandHash();
+ BOOST_CHECK(dbw.Write(key2, in2));
+
+ boost::scoped_ptr<CLevelDBIterator> it(const_cast<CLevelDBWrapper*>(&dbw)->NewIterator());
+
+ // Be sure to seek past the obfuscation key (if it exists)
+ it->Seek(key);
+
+ char key_res;
+ uint256 val_res;
+
+ it->GetKey(key_res);
+ it->GetValue(val_res);
+ BOOST_CHECK_EQUAL(key_res, key);
+ BOOST_CHECK_EQUAL(val_res.ToString(), in.ToString());
+
+ it->Next();
+
+ it->GetKey(key_res);
+ it->GetValue(val_res);
+ BOOST_CHECK_EQUAL(key_res, key2);
+ BOOST_CHECK_EQUAL(val_res.ToString(), in2.ToString());
+
+ it->Next();
+ BOOST_CHECK_EQUAL(it->Valid(), false);
+ }
+}
+
// Test that we do not obfuscation if there is existing data.
BOOST_AUTO_TEST_CASE(existing_data_no_obfuscate)
{
diff --git a/src/txdb.cpp b/src/txdb.cpp
index 9738dea03d..5723c92440 100644
--- a/src/txdb.cpp
+++ b/src/txdb.cpp
@@ -49,7 +49,7 @@ uint256 CCoinsViewDB::GetBestBlock() const {
}
bool CCoinsViewDB::BatchWrite(CCoinsMap &mapCoins, const uint256 &hashBlock) {
- CLevelDBBatch batch(db.GetObfuscateKey());
+ CLevelDBBatch batch(&db.GetObfuscateKey());
size_t count = 0;
size_t changed = 0;
for (CCoinsMap::iterator it = mapCoins.begin(); it != mapCoins.end();) {
@@ -98,8 +98,8 @@ bool CCoinsViewDB::GetStats(CCoinsStats &stats) const {
/* It seems that there are no "const iterators" for LevelDB. Since we
only need read operations on it, use a const-cast to get around
that restriction. */
- boost::scoped_ptr<leveldb::Iterator> pcursor(const_cast<CLevelDBWrapper*>(&db)->NewIterator());
- pcursor->SeekToFirst();
+ boost::scoped_ptr<CLevelDBIterator> pcursor(const_cast<CLevelDBWrapper*>(&db)->NewIterator());
+ pcursor->Seek('c');
CHashWriter ss(SER_GETHASH, PROTOCOL_VERSION);
stats.hashBlock = GetBestBlock();
@@ -107,22 +107,10 @@ bool CCoinsViewDB::GetStats(CCoinsStats &stats) const {
CAmount nTotalAmount = 0;
while (pcursor->Valid()) {
boost::this_thread::interruption_point();
- try {
- leveldb::Slice slKey = pcursor->key();
- CDataStream ssKey(slKey.data(), slKey.data()+slKey.size(), SER_DISK, CLIENT_VERSION);
- char chType;
- ssKey >> chType;
- if (chType == DB_COINS) {
- leveldb::Slice slValue = pcursor->value();
- CDataStream ssValue(slValue.data(), slValue.data()+slValue.size(), SER_DISK, CLIENT_VERSION);
- CCoins coins;
- ssValue >> coins;
- uint256 txhash;
- ssKey >> txhash;
- ss << txhash;
- ss << VARINT(coins.nVersion);
- ss << (coins.fCoinBase ? 'c' : 'n');
- ss << VARINT(coins.nHeight);
+ std::pair<char, uint256> key;
+ CCoins coins;
+ if (pcursor->GetKey(key) && key.first == 'c') {
+ if (pcursor->GetValue(coins)) {
stats.nTransactions++;
for (unsigned int i=0; i<coins.vout.size(); i++) {
const CTxOut &out = coins.vout[i];
@@ -133,13 +121,15 @@ bool CCoinsViewDB::GetStats(CCoinsStats &stats) const {
nTotalAmount += out.nValue;
}
}
- stats.nSerializedSize += 32 + slValue.size();
+ stats.nSerializedSize += 32 + pcursor->GetKeySize();
ss << VARINT(0);
+ } else {
+ return error("CCoinsViewDB::GetStats() : unable to read value");
}
- pcursor->Next();
- } catch (const std::exception& e) {
- return error("%s: Deserialize or I/O error - %s", __func__, e.what());
+ } else {
+ break;
}
+ pcursor->Next();
}
{
LOCK(cs_main);
@@ -151,7 +141,7 @@ bool CCoinsViewDB::GetStats(CCoinsStats &stats) const {
}
bool CBlockTreeDB::WriteBatchSync(const std::vector<std::pair<int, const CBlockFileInfo*> >& fileInfo, int nLastFile, const std::vector<const CBlockIndex*>& blockinfo) {
- CLevelDBBatch batch(GetObfuscateKey());
+ CLevelDBBatch batch(&GetObfuscateKey());
for (std::vector<std::pair<int, const CBlockFileInfo*> >::const_iterator it=fileInfo.begin(); it != fileInfo.end(); it++) {
batch.Write(make_pair(DB_BLOCK_FILES, it->first), *it->second);
}
@@ -167,7 +157,7 @@ bool CBlockTreeDB::ReadTxIndex(const uint256 &txid, CDiskTxPos &pos) {
}
bool CBlockTreeDB::WriteTxIndex(const std::vector<std::pair<uint256, CDiskTxPos> >&vect) {
- CLevelDBBatch batch(GetObfuscateKey());
+ CLevelDBBatch batch(&GetObfuscateKey());
for (std::vector<std::pair<uint256,CDiskTxPos> >::const_iterator it=vect.begin(); it!=vect.end(); it++)
batch.Write(make_pair(DB_TXINDEX, it->first), it->second);
return WriteBatch(batch);
@@ -187,26 +177,17 @@ bool CBlockTreeDB::ReadFlag(const std::string &name, bool &fValue) {
bool CBlockTreeDB::LoadBlockIndexGuts()
{
- boost::scoped_ptr<leveldb::Iterator> pcursor(NewIterator());
+ boost::scoped_ptr<CLevelDBIterator> pcursor(NewIterator());
- CDataStream ssKeySet(SER_DISK, CLIENT_VERSION);
- ssKeySet << make_pair(DB_BLOCK_INDEX, uint256());
- pcursor->Seek(ssKeySet.str());
+ pcursor->Seek(make_pair('b', uint256()));
// Load mapBlockIndex
while (pcursor->Valid()) {
boost::this_thread::interruption_point();
- try {
- leveldb::Slice slKey = pcursor->key();
- CDataStream ssKey(slKey.data(), slKey.data()+slKey.size(), SER_DISK, CLIENT_VERSION);
- char chType;
- ssKey >> chType;
- if (chType == DB_BLOCK_INDEX) {
- leveldb::Slice slValue = pcursor->value();
- CDataStream ssValue(slValue.data(), slValue.data()+slValue.size(), SER_DISK, CLIENT_VERSION);
- CDiskBlockIndex diskindex;
- ssValue >> diskindex;
-
+ std::pair<char, uint256> key;
+ if (pcursor->GetKey(key) && key.first == 'b') {
+ CDiskBlockIndex diskindex;
+ if (pcursor->GetValue(diskindex)) {
// Construct block index object
CBlockIndex* pindexNew = InsertBlockIndex(diskindex.GetBlockHash());
pindexNew->pprev = InsertBlockIndex(diskindex.hashPrev);
@@ -227,10 +208,10 @@ bool CBlockTreeDB::LoadBlockIndexGuts()
pcursor->Next();
} else {
- break; // if shutdown requested or finished loading block index
+ return error("LoadBlockIndex() : failed to read value");
}
- } catch (const std::exception& e) {
- return error("%s: Deserialize or I/O error - %s", __func__, e.what());
+ } else {
+ break;
}
}
generated by cgit v1.2.3 (git 2.26.2) at 2024-09-15 11:53:57 +0000