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55 lines
1.4 KiB
C++
55 lines
1.4 KiB
C++
/*
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* UidAllocator.cpp
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*
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* (c) 2013 Sofian Audry -- info(@)sofianaudry(.)com
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* (c) 2013 Alexandre Quessy -- alexandre(@)quessy(.)net
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU 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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/**
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* The UidAllocator class.
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*/
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#ifndef __UID_ALLOCATOR_H__
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#define __UID_ALLOCATOR_H__
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#include <string>
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#include <vector>
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/// A UID in Libremapping is represented as a integer.
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typedef int uid;
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/// Represents a UID that does not refer to any entity.
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#define NULL_UID (-1)
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/**
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* Allocates uids for instances by appending an incremental number to a given string.
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* Manages a pool of unique names.
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*/
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class UidAllocator
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{
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public:
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uid allocate();
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bool free(uid id);
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bool reserve(uid id);
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bool exists(uid id) const;
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std::vector<uid> list() const { return _ids; }
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private:
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std::vector<uid> _ids;
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};
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#endif // ifndef
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