65 lines
1.3 KiB
C
65 lines
1.3 KiB
C
|
// Copyright (c) 2018 The Dash Core developers
|
||
|
|
// Distributed under the MIT software license, see the accompanying
|
||
|
|
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
|
||
|
|
|
||
|
|
#ifndef DASH_EVODB_H
|
||
|
|
#define DASH_EVODB_H
|
||
|
|
|
||
|
|
#include "dbwrapper.h"
|
||
|
|
#include "sync.h"
|
||
|
|
|
||
|
|
class CEvoDB
|
||
|
|
{
|
||
|
|
private:
|
||
|
|
CCriticalSection cs;
|
||
|
|
CDBWrapper db;
|
||
|
|
CDBTransaction dbTransaction;
|
||
|
|
|
||
|
|
public:
|
||
|
|
CEvoDB(size_t nCacheSize, bool fMemory = false, bool fWipe = false);
|
||
|
|
|
||
|
|
std::unique_ptr<CScopedDBTransaction> BeginTransaction()
|
||
|
|
{
|
||
|
|
LOCK(cs);
|
||
|
|
auto t = CScopedDBTransaction::Begin(dbTransaction);
|
||
|
|
return t;
|
||
|
|
}
|
||
|
|
|
||
|
|
template<typename K, typename V>
|
||
|
|
bool Read(const K& key, V& value)
|
||
|
|
{
|
||
|
|
LOCK(cs);
|
||
|
|
return dbTransaction.Read(key, value);
|
||
|
|
}
|
||
|
|
|
||
|
|
template<typename K, typename V>
|
||
|
|
void Write(const K& key, const V& value)
|
||
|
|
{
|
||
|
|
LOCK(cs);
|
||
|
|
dbTransaction.Write(key, value);
|
||
|
|
}
|
||
|
|
|
||
|
|
template <typename K>
|
||
|
|
bool Exists(const K& key)
|
||
|
|
{
|
||
|
|
LOCK(cs);
|
||
|
|
return dbTransaction.Exists(key);
|
||
|
|
}
|
||
|
|
|
||
|
|
template <typename K>
|
||
|
|
void Erase(const K& key)
|
||
|
|
{
|
||
|
|
LOCK(cs);
|
||
|
|
dbTransaction.Erase(key);
|
||
|
|
}
|
||
|
|
|
||
|
|
CDBWrapper& GetRawDB()
|
||
|
|
{
|
||
|
|
return db;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
extern CEvoDB* evoDb;
|
||
|
|
|
||
|
|
#endif//DASH_EVODB_H
|