forked from blue/lmdbal
113 lines
2.9 KiB
C++
113 lines
2.9 KiB
C++
// Squawk messenger.
|
|
// Copyright (C) 2019 Yury Gubich <blue@macaw.me>
|
|
//
|
|
// This program is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// This program is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU General Public License
|
|
// along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
#ifndef CORE_DATABASE_H
|
|
#define CORE_DATABASE_H
|
|
|
|
#include <map>
|
|
#include <string>
|
|
|
|
#include <QString>
|
|
#include <QStandardPaths>
|
|
#include <QDir>
|
|
#include <lmdb.h>
|
|
|
|
class DataBase
|
|
{
|
|
class _Table;
|
|
template<class T>
|
|
class Serializer;
|
|
public:
|
|
template <class K, class V>
|
|
class Table;
|
|
template <class K, class V>
|
|
class Cache;
|
|
|
|
DataBase(const QString& name, uint16_t mapSize = 10);
|
|
~DataBase();
|
|
|
|
void open();
|
|
void close();
|
|
bool ready() const;
|
|
bool removeDirectory();
|
|
QString getName() const;
|
|
void drop();
|
|
|
|
template <class K, class V>
|
|
Table<K, V>* addTable(const std::string& name);
|
|
|
|
template <class K, class V>
|
|
Cache<K, V>* addCache(const std::string& name);
|
|
|
|
template <class K, class V>
|
|
Table<K, V>* getTable(const std::string& name);
|
|
|
|
template <class K, class V>
|
|
Cache<K, V>* getCache(const std::string& name);
|
|
|
|
public:
|
|
//exceptions
|
|
class Exception;
|
|
class Directory;
|
|
class Closed;
|
|
class Opened;
|
|
class NotFound;
|
|
class Exist;
|
|
class Unknown;
|
|
|
|
private:
|
|
std::string name;
|
|
bool opened;
|
|
uint16_t size;
|
|
MDB_env* environment;
|
|
std::map<std::string, _Table*> tables;
|
|
};
|
|
|
|
#include "exceptions.h"
|
|
|
|
template <class K, class V>
|
|
DataBase::Table<K, V>* DataBase::addTable(const std::string& p_name) {
|
|
if (opened) {
|
|
throw Opened(name, "add table " + p_name);
|
|
}
|
|
DataBase::Table<K, V>* table = new DataBase::Table<K, V>(p_name, this);
|
|
tables.insert(std::make_pair(p_name, (_Table*)table));
|
|
return table;
|
|
}
|
|
|
|
template<class K, class V>
|
|
DataBase::Cache<K, V> * DataBase::addCache(const std::string& p_name) {
|
|
if (opened) {
|
|
throw Opened(name, "add cache " + p_name);
|
|
}
|
|
DataBase::Cache<K, V>* cache = new DataBase::Cache<K, V>(p_name, this);
|
|
tables.insert(std::make_pair(p_name, (_Table*)cache));
|
|
return cache;
|
|
}
|
|
|
|
template <class K, class V>
|
|
DataBase::Table<K, V>* DataBase::getTable(const std::string& p_name) {
|
|
return static_cast<DataBase::Table<K, V>*>(tables.at(p_name));
|
|
}
|
|
|
|
template <class K, class V>
|
|
DataBase::Cache<K, V>* DataBase::getCache(const std::string& p_name) {
|
|
return static_cast<DataBase::Cache<K, V>*>(tables.at(p_name));
|
|
}
|
|
|
|
|
|
#endif // CORE_DATABASE_H
|