Mercurial > octave
annotate liboctave/util/singleton-cleanup.h @ 32633:4b601ca024d5
maint: merge stable to default
author | John W. Eaton <jwe@octave.org> |
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date | Fri, 22 Dec 2023 12:14:08 -0500 |
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1 //////////////////////////////////////////////////////////////////////// |
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2 // |
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3 // Copyright (C) 2011-2024 The Octave Project Developers |
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4 // |
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5 // See the file COPYRIGHT.md in the top-level directory of this |
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6 // distribution or <https://octave.org/copyright/>. |
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7 // |
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8 // This file is part of Octave. |
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9 // |
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10 // Octave is free software: you can redistribute it and/or modify it |
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11 // under the terms of the GNU General Public License as published by |
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12 // the Free Software Foundation, either version 3 of the License, or |
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13 // (at your option) any later version. |
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14 // |
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15 // Octave is distributed in the hope that it will be useful, but |
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16 // WITHOUT ANY WARRANTY; without even the implied warranty of |
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17 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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18 // GNU General Public License for more details. |
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19 // |
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20 // You should have received a copy of the GNU General Public License |
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21 // along with Octave; see the file COPYING. If not, see |
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22 // <https://www.gnu.org/licenses/>. |
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23 // |
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24 //////////////////////////////////////////////////////////////////////// |
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25 |
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26 #if ! defined (octave_singleton_cleanup_h) |
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27 #define octave_singleton_cleanup_h 1 |
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28 |
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29 #include "octave-config.h" |
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30 |
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31 #include <set> |
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32 |
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33 class OCTAVE_API singleton_cleanup_list |
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34 { |
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35 protected: |
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36 |
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37 singleton_cleanup_list () : m_fcn_list () { } |
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38 |
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39 public: |
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40 |
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41 typedef void (*fptr) (); |
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42 |
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43 OCTAVE_DISABLE_COPY_MOVE (singleton_cleanup_list) |
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44 |
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45 ~singleton_cleanup_list (); |
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46 |
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47 static void add (fptr f) |
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48 { |
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49 if (instance_ok ()) |
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50 s_instance->do_add (f); |
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51 } |
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52 |
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53 static void cleanup () |
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54 { |
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55 delete s_instance; |
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56 s_instance = nullptr; |
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57 } |
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58 |
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59 private: |
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60 |
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61 static singleton_cleanup_list *s_instance; |
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62 |
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63 static bool instance_ok (); |
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64 |
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65 static void cleanup_instance () |
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66 { |
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67 delete s_instance; |
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68 s_instance = nullptr; |
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69 } |
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70 |
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71 std::set<fptr> m_fcn_list; |
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72 |
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73 void do_add (fptr f) |
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74 { |
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75 m_fcn_list.insert (f); |
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76 } |
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77 }; |
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78 |
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79 #endif |