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83 lines
2.7 KiB
C++
83 lines
2.7 KiB
C++
/*****************************************************************************
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* Author: Valient Gough <vgough@pobox.com>
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*
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*****************************************************************************
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* Copyright (c) 2004, Valient Gough
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*
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* This program is free software: you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as published by the
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* Free Software Foundation, either version 3 of the License, or (at your
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* option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
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* for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef _Interface_incl_
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#define _Interface_incl_
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#include <string>
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namespace encfs {
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class ConfigVar;
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class Interface {
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public:
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/*!
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Version numbers as described by libtool: info://libtool/versioning
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Current - the most recent interface api that is implemented.
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Revision - the implementation number of the current interface.
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Age - the difference between the newest and oldest interfaces that
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are implemented.
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*/
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Interface(const char *name, int Current, int Revision, int Age);
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Interface(std::string name, int Current, int Revision, int Age);
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Interface(const Interface &src);
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Interface();
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// check if we implement the interface described by B.
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// Note that A.implements(B) is not the same as B.implements(A)
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// This checks the current() version and age() against B.current() for
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// compatibility. Even if A.implements(B) is true, B > A may also be
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// true, meaning B is a newer revision of the interface then A.
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bool implements(const Interface &dst) const;
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const std::string &name() const;
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int current() const;
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int revision() const;
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int age() const;
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std::string &name();
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int ¤t();
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int &revision();
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int &age();
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Interface &operator=(const Interface &src);
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private:
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std::string _name;
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int _current;
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int _revision;
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int _age;
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};
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ConfigVar &operator<<(ConfigVar &, const Interface &);
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const ConfigVar &operator>>(const ConfigVar &, Interface &);
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bool operator<(const Interface &A, const Interface &B);
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bool operator>(const Interface &A, const Interface &B);
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bool operator<=(const Interface &A, const Interface &B);
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bool operator>=(const Interface &A, const Interface &B);
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bool operator==(const Interface &A, const Interface &B);
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bool operator!=(const Interface &A, const Interface &B);
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} // namespace encfs
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#endif
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