encfs/encfs/ConfigVar.h
2016-04-24 23:15:43 -07:00

83 lines
2.2 KiB
C++

/*****************************************************************************
* Author: Valient Gough <vgough@pobox.com>
*
*****************************************************************************
* Copyright (c) 2004, Valient Gough
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU Lesser 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 Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _ConfigVar_incl_
#define _ConfigVar_incl_
#include <memory>
#include <string>
namespace encfs {
class ConfigVar {
struct ConfigVarData {
std::string buffer;
int offset;
};
std::shared_ptr<ConfigVarData> pd;
public:
ConfigVar();
ConfigVar(const std::string &buffer);
ConfigVar(const ConfigVar &src);
~ConfigVar();
ConfigVar &operator=(const ConfigVar &src);
// reset read/write offset..
void resetOffset();
// read bytes
int read(unsigned char *buffer, int size) const;
// write bytes..
int write(const unsigned char *data, int size);
int readInt() const;
int readInt(int defaultValue) const;
void writeInt(int value);
bool readBool(bool defaultValue) const;
void writeString(const char *data, int size);
// return amount of data in var
int size() const;
// return data pointer - returns front of data pointer, not the current
// position.
const char *buffer() const;
// return current position in data() buffer.
int at() const;
};
ConfigVar &operator<<(ConfigVar &, bool);
ConfigVar &operator<<(ConfigVar &, int);
ConfigVar &operator<<(ConfigVar &, const std::string &str);
const ConfigVar &operator>>(const ConfigVar &, bool &);
const ConfigVar &operator>>(const ConfigVar &, int &);
const ConfigVar &operator>>(const ConfigVar &, std::string &str);
} // namespace encfs
#endif