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annotate libinterp/octave-value/ov-dld-fcn.h @ 25054:6652d3823428 stable

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maint: Update copyright dates in all source files.
author John W. Eaton <jwe@octave.org>
date Fri, 30 Mar 2018 09:19:05 -0400
parents 194eb4bd202b
children 078b795c5219
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1 /*
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2
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3 Copyright (C) 1996-2018 John W. Eaton
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4
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5 This file is part of Octave.
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6
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7 Octave is free software: you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by
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9 the Free Software Foundation, either version 3 of the License, or
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10 (at your option) any later version.
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11
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12 Octave is distributed in the hope that it will be useful, but
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13 WITHOUT ANY WARRANTY; without even the implied warranty of
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14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 GNU General Public License for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with Octave; see the file COPYING. If not, see
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19 <https://www.gnu.org/licenses/>.
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20
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21 */
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22
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23 #if ! defined (octave_ov_dld_fcn_h)
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24 #define octave_ov_dld_fcn_h 1
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25
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26 #include "octave-config.h"
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27
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28 #include <string>
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29
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30 #include "oct-shlib.h"
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31
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32 #include "ov-fcn.h"
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33 #include "ov-builtin.h"
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34 #include "ov-typeinfo.h"
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35
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36 class octave_value;
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37 class octave_value_list;
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38
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39 // Dynamically-linked functions.
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40
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41 class
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42 OCTINTERP_API
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43 octave_dld_function : public octave_builtin
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44 {
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45 public:
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46
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47 octave_dld_function (void)
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48 : sh_lib (), t_checked (), system_fcn_file ()
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49 { }
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50
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51 octave_dld_function (octave_builtin::fcn ff, const octave::dynamic_library& shl,
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52 const std::string& nm = "",
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53 const std::string& ds = "");
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54
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55 octave_dld_function (octave_builtin::meth mm, const octave::dynamic_library& shl,
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56 const std::string& nm = "",
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57 const std::string& ds = "");
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58
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59 // No copying!
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60
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61 octave_dld_function (const octave_dld_function& fn) = delete;
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62
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63 octave_dld_function& operator = (const octave_dld_function& fn) = delete;
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64
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65 ~octave_dld_function (void);
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66
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67 void mark_fcn_file_up_to_date (const octave::sys::time& t) { t_checked = t; }
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68
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69 std::string fcn_file_name (void) const;
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70
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71 octave::sys::time time_parsed (void) const;
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72
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73 octave::sys::time time_checked (void) const { return t_checked; }
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74
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75 bool is_system_fcn_file (void) const { return system_fcn_file; }
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76
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77 bool is_builtin_function (void) const { return false; }
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78
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79 bool is_dld_function (void) const { return true; }
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80
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81 static octave_dld_function * create (octave_builtin::fcn ff,
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82 const octave::dynamic_library& shl,
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83 const std::string& nm = "",
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84 const std::string& ds = "");
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86 static octave_dld_function * create (octave_builtin::meth mm,
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87 const octave::dynamic_library& shl,
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88 const std::string& nm = "",
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89 const std::string& ds = "");
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90
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91 octave::dynamic_library get_shlib (void) const
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92 { return sh_lib; }
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93
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94 private:
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95
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96 octave::dynamic_library sh_lib;
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97
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98 // The time the file was last checked to see if it needs to be
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99 // parsed again.
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100 mutable octave::sys::time t_checked;
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101
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102 // True if this function came from a file that is considered to be a
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103 // system function. This affects whether we check the time stamp
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104 // on the file to see if it has changed.
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105 bool system_fcn_file;
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106
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107 DECLARE_OV_TYPEID_FUNCTIONS_AND_DATA
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108 };
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109
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110 #endif