Initial commit for version 2.0.x patch release
[OpenFOAM-2.0.x.git] / src / OpenFOAM / memory / refCount / refCount.H
blob9a02a71e9b7dc853c0f539a50257c340e3ec405a
1 /*---------------------------------------------------------------------------*\
2   =========                 |
3   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
4    \\    /   O peration     |
5     \\  /    A nd           | Copyright (C) 2004-2010 OpenCFD Ltd.
6      \\/     M anipulation  |
7 -------------------------------------------------------------------------------
8 License
9     This file is part of OpenFOAM.
11     OpenFOAM is free software: you can redistribute it and/or modify it
12     under the terms of the GNU General Public License as published by
13     the Free Software Foundation, either version 3 of the License, or
14     (at your option) any later version.
16     OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
17     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
18     FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
19     for more details.
21     You should have received a copy of the GNU General Public License
22     along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
24 Class
25     Foam::refCount
27 Description
28     Reference counter for various OpenFOAM components.
30 \*---------------------------------------------------------------------------*/
32 #ifndef refCount_H
33 #define refCount_H
35 #include "bool.H"
37 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
39 namespace Foam
42 /*---------------------------------------------------------------------------*\
43                           Class refCount Declaration
44 \*---------------------------------------------------------------------------*/
46 class refCount
48     // Private data
50         int count_;
52     // Private Member Functions
54         //- Dissallow copy
55         refCount(const refCount&);
57         //- Dissallow bitwise assignment
58         void operator=(const refCount&);
61 public:
63     // Constructors
65         //- Construct null with zero count
66         refCount()
67         :
68             count_(0)
69         {}
72     // Member Functions
74         //- Return the reference count
75         int count() const
76         {
77             return count_;
78         }
81         //- Return true if the reference count is zero
82         bool okToDelete() const
83         {
84             return !count_;
85         }
88         //- Reset the reference count to zero
89         void resetRefCount()
90         {
91             count_ = 0;
92         }
95     // Member Operators
97         //- Increment the reference count
98         void operator++()
99         {
100             count_++;
101         }
103         //- Increment the reference count
104         void operator++(int)
105         {
106             count_++;
107         }
109         //- Decrement the reference count
110         void operator--()
111         {
112             count_--;
113         }
115         //- Decrement the reference count
116         void operator--(int)
117         {
118             count_--;
119         }
123 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
125 } // End namespace Foam
127 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
129 #endif
131 // ************************************************************************* //