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1 /* |
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2 |
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3 Copyright (C) 1996, 1997 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 the |
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9 Free Software Foundation; either version 2, or (at your option) any |
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10 later version. |
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11 |
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12 Octave is distributed in the hope that it will be useful, but WITHOUT |
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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15 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, write to the Free |
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19 Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
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20 02110-1301, USA. |
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21 |
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22 */ |
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23 |
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24 #if !defined (octave_dld_function_h) |
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25 #define octave_dld_function_h 1 |
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26 |
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27 #include <string> |
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28 |
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29 #include "oct-shlib.h" |
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30 |
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31 #include "ov-fcn.h" |
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32 #include "ov-builtin.h" |
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33 #include "ov-typeinfo.h" |
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34 |
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35 class octave_shlib; |
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36 |
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37 class octave_value; |
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38 class octave_value_list; |
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39 |
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40 // Dynamically-linked functions. |
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41 |
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42 class |
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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 |
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49 octave_dld_function (octave_builtin::fcn ff, const octave_shlib& shl, |
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50 const std::string& nm = std::string (), |
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51 const std::string& ds = std::string ()); |
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52 |
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53 ~octave_dld_function (void); |
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54 |
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55 void mark_fcn_file_up_to_date (const octave_time& t) { t_checked = t; } |
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56 |
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57 std::string fcn_file_name (void) const; |
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58 |
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59 octave_time time_parsed (void) const; |
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60 |
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61 octave_time time_checked (void) const { return t_checked; } |
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62 |
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63 bool is_system_fcn_file (void) const { return system_fcn_file; } |
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64 |
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65 bool is_builtin_function (void) const { return false; } |
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66 |
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67 bool is_dld_function (void) const { return true; } |
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68 |
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69 private: |
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70 |
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71 octave_shlib sh_lib; |
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72 |
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73 // The time the file was last checked to see if it needs to be |
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74 // parsed again. |
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75 mutable octave_time t_checked; |
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76 |
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77 // True if this function came from a file that is considered to be a |
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78 // system function. This affects whether we check the time stamp |
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79 // on the file to see if it has changed. |
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80 bool system_fcn_file; |
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81 |
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82 // No copying! |
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83 |
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84 octave_dld_function (const octave_dld_function& fn); |
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85 |
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86 octave_dld_function& operator = (const octave_dld_function& fn); |
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87 |
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88 DECLARE_OCTAVE_ALLOCATOR |
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89 |
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90 DECLARE_OV_TYPEID_FUNCTIONS_AND_DATA |
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91 }; |
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92 |
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93 #endif |
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94 |
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95 /* |
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96 ;;; Local Variables: *** |
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97 ;;; mode: C++ *** |
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98 ;;; End: *** |
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99 */ |
