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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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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20 |
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21 */ |
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22 |
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23 #if !defined (octave_dld_function_h) |
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24 #define octave_dld_function_h 1 |
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25 |
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26 #if defined (__GNUG__) && defined (USE_PRAGMA_INTERFACE_IMPLEMENTATION) |
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27 #pragma interface |
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28 #endif |
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29 |
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30 #include <cstdlib> |
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31 |
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32 #include <string> |
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33 |
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34 #include "oct-shlib.h" |
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35 |
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36 #include "ov-fcn.h" |
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37 #include "ov-builtin.h" |
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38 #include "ov-typeinfo.h" |
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39 |
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40 class octave_shlib; |
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41 |
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42 class octave_value; |
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43 class octave_value_list; |
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44 |
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45 // Dynamically-linked functions. |
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46 |
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47 class |
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48 octave_dld_function : public octave_builtin |
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49 { |
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50 public: |
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51 |
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52 octave_dld_function (void) { abort (); } |
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53 |
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54 octave_dld_function (octave_builtin::fcn ff, const octave_shlib& shl, |
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55 const std::string& nm = std::string (), |
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56 const std::string& ds = std::string ()); |
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57 |
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58 ~octave_dld_function (void); |
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59 |
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60 void mark_fcn_file_up_to_date (const octave_time& t) { t_checked = t; } |
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61 |
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62 std::string fcn_file_name (void) const; |
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63 |
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64 octave_time time_parsed (void) const; |
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65 |
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66 octave_time time_checked (void) const { return t_checked; } |
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67 |
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68 bool is_system_fcn_file (void) const { return system_fcn_file; } |
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69 |
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70 bool is_builtin_function (void) const { return false; } |
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71 |
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72 bool is_dld_function (void) const { return true; } |
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73 |
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74 private: |
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75 |
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76 octave_dld_function (const octave_dld_function& m); |
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77 |
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78 octave_shlib sh_lib; |
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79 |
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80 // The time the file was last checked to see if it needs to be |
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81 // parsed again. |
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82 mutable octave_time t_checked; |
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83 |
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84 // True if this function came from a file that is considered to be a |
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85 // system function. This affects whether we check the time stamp |
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86 // on the file to see if it has changed. |
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87 bool system_fcn_file; |
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88 |
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89 DECLARE_OCTAVE_ALLOCATOR |
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90 |
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91 DECLARE_OV_TYPEID_FUNCTIONS_AND_DATA |
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92 }; |
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93 |
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94 #endif |
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95 |
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96 /* |
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97 ;;; Local Variables: *** |
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98 ;;; mode: C++ *** |
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99 ;;; End: *** |
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100 */ |
