encfs/base/Interface.cpp

82 lines
2.3 KiB
C++

/*****************************************************************************
* Author: Valient Gough <vgough@pobox.com>
*
*****************************************************************************
* Copyright (c) 2004-2013, 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/>.
*/
#include "base/Interface.h"
#include "base/ConfigVar.h"
#include <glog/logging.h>
#include <ostream>
namespace encfs {
using std::string;
using std::ostream;
ostream &operator<<(ostream &out, const Interface &iface) {
out << iface.name() << "(" << iface.major() << ":" << iface.minor() << ":"
<< iface.age() << ")";
return out;
}
bool implements(const Interface &A, const Interface &B) {
VLOG(1) << "checking if " << A << " implements " << B;
if (A.name() != B.name()) return false;
int currentDiff = A.major() - B.major();
return (currentDiff >= 0 && currentDiff <= (int)A.age());
}
Interface makeInterface(const string &name, int major, int minor, int age) {
Interface iface;
iface.set_name(name);
iface.set_major(major);
iface.set_minor(minor);
iface.set_age(age);
return iface;
}
ConfigVar &operator<<(ConfigVar &dst, const Interface &iface) {
dst << iface.name() << (int)iface.major() << (int)iface.minor()
<< (int)iface.age();
return dst;
}
const ConfigVar &operator>>(const ConfigVar &src, Interface &iface) {
src >> *iface.mutable_name();
int major, minor, age;
src >> major >> minor >> age;
iface.set_major(major);
iface.set_minor(minor);
iface.set_age(age);
return src;
}
bool operator!=(const Interface &a, const Interface &b) {
if (a.major() != b.major()) return true;
if (a.minor() != b.minor()) return true;
return false;
}
} // namespace encfs