Mercurial > octave
annotate liboctave/util/oct-shlib.h @ 23615:be7b884ac589
use version number in OCTAVE_DEPRECATED macro
* mk-octave-config-h.sh, oct-conf-post.in.h (OCTAVE_DEPRECATED):
New argument, VER, to record and display version number in which the
object was marked as deprecated. Change all uses.
author | John W. Eaton <jwe@octave.org> |
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date | Fri, 16 Jun 2017 09:19:20 -0400 |
parents | b075b1629c26 |
children | 08036a7f3660 |
rev | line source |
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2 | |
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3 Copyright (C) 1999-2017 John W. Eaton |
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4 Copyright (C) 2009 VZLU Prague |
3326 | 5 |
6 This file is part of Octave. | |
7 | |
8 Octave is free software; you can redistribute it and/or modify it | |
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9 under the terms of the GNU General Public License as published by |
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10 the Free Software Foundation; either version 3 of the License, or |
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11 (at your option) any later version. |
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13 Octave is distributed in the hope that it will be useful, but |
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14 WITHOUT ANY WARRANTY; without even the implied warranty of |
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15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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16 GNU General Public License for more details. |
3326 | 17 |
18 You should have received a copy of the GNU General Public License | |
7016 | 19 along with Octave; see the file COPYING. If not, see |
20 <http://www.gnu.org/licenses/>. | |
3326 | 21 |
22 */ | |
23 | |
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24 #if ! defined (octave_oct_shlib_h) |
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25 #define octave_oct_shlib_h 1 |
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27 #include "octave-config.h" |
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28 |
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29 #include <list> |
3326 | 30 #include <string> |
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31 #include <map> |
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4848 | 33 #include "oct-time.h" |
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34 #include "oct-refcount.h" |
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36 namespace octave |
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38 class |
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39 OCTAVE_API |
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40 dynamic_library |
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41 { |
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42 public: // FIXME: make this class private? |
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44 typedef std::string (*name_mangler) (const std::string&); |
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46 class dynlib_rep |
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47 { |
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48 public: |
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49 |
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50 dynlib_rep (void) |
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51 : count (1), file (), tm_loaded (time_t ()), fcn_names () { } |
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52 |
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53 protected: |
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54 |
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55 dynlib_rep (const std::string& f); |
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56 |
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57 public: |
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58 |
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59 virtual ~dynlib_rep (void) |
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60 { |
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61 instances.erase (file); |
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62 } |
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63 |
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64 virtual bool is_open (void) const |
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65 { return false; } |
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66 |
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67 virtual void * search (const std::string&, name_mangler = 0) |
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68 { return 0; } |
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69 |
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70 bool is_out_of_date (void) const; |
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71 |
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72 // This method will be overridden conditionally. |
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73 static dynlib_rep * new_instance (const std::string& f); |
3326 | 74 |
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75 static dynlib_rep * get_instance (const std::string& f, bool fake); |
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76 |
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77 octave::sys::time time_loaded (void) const |
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78 { return tm_loaded; } |
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79 |
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80 std::string file_name (void) const |
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81 { return file; } |
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82 |
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83 size_t num_fcn_names (void) const { return fcn_names.size (); } |
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84 |
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85 std::list<std::string> function_names (void) const; |
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86 |
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87 void add_fcn_name (const std::string&); |
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88 |
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89 bool remove_fcn_name (const std::string&); |
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90 |
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91 void clear_fcn_names (void) { fcn_names.clear (); } |
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92 |
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93 public: |
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94 |
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95 octave::refcount<int> count; |
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96 |
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97 protected: |
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98 |
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99 void fake_reload (void); |
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100 |
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101 std::string file; |
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102 octave::sys::time tm_loaded; |
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103 |
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104 // Set of hooked function names. |
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105 typedef std::map<std::string, size_t>::iterator fcn_names_iterator; |
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106 typedef std::map<std::string, size_t>::const_iterator fcn_names_const_iterator; |
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107 |
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108 std::map<std::string, size_t> fcn_names; |
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109 |
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110 static std::map<std::string, dynlib_rep *> instances; |
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111 }; |
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112 |
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113 private: |
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114 |
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115 static dynlib_rep nil_rep; |
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116 |
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117 public: |
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118 |
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119 dynamic_library (void) : rep (&nil_rep) { rep->count++; } |
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120 |
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121 dynamic_library (const std::string& f, bool fake = true) |
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122 : rep (dynlib_rep::get_instance (f, fake)) { } |
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123 |
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124 ~dynamic_library (void) |
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125 { |
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126 if (--rep->count == 0) |
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127 delete rep; |
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128 } |
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130 dynamic_library (const dynamic_library& sl) |
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131 : rep (sl.rep) |
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132 { |
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133 rep->count++; |
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134 } |
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136 dynamic_library& operator = (const dynamic_library& sl) |
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137 { |
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138 if (rep != sl.rep) |
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139 { |
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140 if (--rep->count == 0) |
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141 delete rep; |
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143 rep = sl.rep; |
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144 rep->count++; |
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145 } |
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147 return *this; |
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148 } |
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150 bool operator == (const dynamic_library& sl) const |
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151 { return (rep == sl.rep); } |
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152 |
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153 operator bool () const { return rep->is_open (); } |
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154 |
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155 void open (const std::string& f) |
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156 { *this = dynamic_library (f); } |
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157 |
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158 std::list<std::string> close (void) |
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159 { |
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160 std::list<std::string> removed_fcns = rep->function_names (); |
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161 |
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162 rep->clear_fcn_names (); |
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164 *this = dynamic_library (); |
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165 |
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166 return removed_fcns; |
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167 } |
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168 |
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169 void * search (const std::string& nm, name_mangler mangler = 0) const |
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170 { |
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171 void *f = rep->search (nm, mangler); |
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172 if (f) |
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173 rep->add_fcn_name (nm); |
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175 return f; |
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176 } |
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178 void add (const std::string& name) |
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179 { rep->add_fcn_name (name); } |
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180 |
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181 bool remove (const std::string& name) |
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182 { return rep->remove_fcn_name (name); } |
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183 |
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184 size_t number_of_functions_loaded (void) const |
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185 { return rep->num_fcn_names (); } |
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186 |
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187 bool is_out_of_date (void) const |
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188 { return rep->is_out_of_date (); } |
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190 std::string file_name (void) const |
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191 { return rep->file_name (); } |
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192 |
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193 octave::sys::time time_loaded (void) const |
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194 { return rep->time_loaded (); } |
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196 private: |
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198 dynlib_rep *rep; |
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199 }; |
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200 } |
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202 #if defined (OCTAVE_USE_DEPRECATED_FUNCTIONS) |
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203 |
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204 OCTAVE_DEPRECATED (4.2, "use 'octave::dynamic_library' instead") |
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205 typedef octave::dynamic_library octave_shlib; |
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207 #endif | |
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208 |
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209 #endif |