Mercurial > octave-nkf
annotate src/ov-mex-fcn.cc @ 7872:1b63f8da772d
fix unloading of mex files
author | John W. Eaton <jwe@octave.org> |
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date | Thu, 05 Jun 2008 14:41:52 -0400 |
parents | 1e01db14700b |
children | 3100283874d7 |
rev | line source |
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5864 | 1 /* |
2 | |
7017 | 3 Copyright (C) 1996, 1997, 2006, 2007 John W. Eaton |
5864 | 4 |
5 This file is part of Octave. | |
6 | |
7 Octave is free software; you can redistribute it and/or modify it | |
8 under the terms of the GNU General Public License as published by the | |
7016 | 9 Free Software Foundation; either version 3 of the License, or (at your |
10 option) any later version. | |
5864 | 11 |
12 Octave is distributed in the hope that it will be useful, but WITHOUT | |
13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
15 for more details. | |
16 | |
17 You should have received a copy of the GNU General Public License | |
7016 | 18 along with Octave; see the file COPYING. If not, see |
19 <http://www.gnu.org/licenses/>. | |
5864 | 20 |
21 */ | |
22 | |
23 #ifdef HAVE_CONFIG_H | |
24 #include <config.h> | |
25 #endif | |
26 | |
27 #include "oct-shlib.h" | |
28 | |
29 #include <defaults.h> | |
30 #include "dynamic-ld.h" | |
31 #include "error.h" | |
32 #include "oct-obj.h" | |
33 #include "ov-mex-fcn.h" | |
34 #include "ov.h" | |
35 #include "toplev.h" | |
36 #include "unwind-prot.h" | |
37 | |
38 DEFINE_OCTAVE_ALLOCATOR (octave_mex_function); | |
39 | |
40 DEFINE_OV_TYPEID_FUNCTIONS_AND_DATA (octave_mex_function, | |
41 "mex function", "mex function"); | |
42 | |
43 octave_mex_function::octave_mex_function | |
44 (void *fptr, bool fmex, const octave_shlib& shl, | |
45 const std::string& nm) | |
6068 | 46 : octave_function (nm), mex_fcn_ptr (fptr), exit_fcn_ptr (0), |
47 have_fmex (fmex), sh_lib (shl) | |
5864 | 48 { |
49 mark_fcn_file_up_to_date (time_parsed ()); | |
50 | |
51 std::string file_name = fcn_file_name (); | |
52 | |
53 system_fcn_file | |
54 = (! file_name.empty () | |
55 && Voct_file_dir == file_name.substr (0, Voct_file_dir.length ())); | |
56 } | |
57 | |
58 octave_mex_function::~octave_mex_function (void) | |
59 { | |
6068 | 60 if (exit_fcn_ptr) |
61 (*exit_fcn_ptr) (); | |
62 | |
7872 | 63 octave_dynamic_loader::remove_mex (my_name, sh_lib); |
5864 | 64 } |
65 | |
66 std::string | |
67 octave_mex_function::fcn_file_name (void) const | |
68 { | |
69 return sh_lib.file_name (); | |
70 } | |
71 | |
72 octave_time | |
73 octave_mex_function::time_parsed (void) const | |
74 { | |
75 return sh_lib.time_loaded (); | |
76 } | |
77 | |
78 octave_value_list | |
79 octave_mex_function::subsref (const std::string& type, | |
80 const std::list<octave_value_list>& idx, | |
81 int nargout) | |
82 { | |
83 octave_value_list retval; | |
84 | |
85 switch (type[0]) | |
86 { | |
87 case '(': | |
88 { | |
89 int tmp_nargout = (type.length () > 1 && nargout == 0) ? 1 : nargout; | |
90 | |
91 retval = do_multi_index_op (tmp_nargout, idx.front ()); | |
92 } | |
93 break; | |
94 | |
95 case '{': | |
96 case '.': | |
97 { | |
98 std::string nm = type_name (); | |
99 error ("%s cannot be indexed with %c", nm.c_str (), type[0]); | |
100 } | |
101 break; | |
102 | |
103 default: | |
104 panic_impossible (); | |
105 } | |
106 | |
107 // FIXME -- perhaps there should be an | |
108 // octave_value_list::next_subsref member function? See also | |
109 // octave_user_function::subsref. | |
110 // | |
111 // FIXME -- Note that if a function call returns multiple | |
112 // values, and there is further indexing to perform, then we are | |
113 // ignoring all but the first value. Is this really what we want to | |
114 // do? If it is not, then what should happen for stat("file").size, | |
115 // for exmaple? | |
116 | |
117 if (idx.size () > 1) | |
118 retval = retval(0).next_subsref (nargout, type, idx); | |
119 | |
120 return retval; | |
121 } | |
122 | |
123 extern octave_value_list | |
6068 | 124 call_mex (bool have_fmex, void *f, const octave_value_list& args, |
125 int nargout, octave_mex_function *curr_mex_fcn); | |
5864 | 126 |
127 octave_value_list | |
128 octave_mex_function::do_multi_index_op (int nargout, | |
129 const octave_value_list& args) | |
130 { | |
131 octave_value_list retval; | |
132 | |
133 if (error_state) | |
134 return retval; | |
135 | |
136 if (args.has_magic_colon ()) | |
137 ::error ("invalid use of colon in function argument list"); | |
138 else | |
139 { | |
140 unwind_protect::begin_frame ("mex_func_eval"); | |
141 | |
142 octave_call_stack::push (this); | |
143 | |
144 unwind_protect::add (octave_call_stack::unwind_pop, 0); | |
145 | |
7487
1e01db14700b
catch octave_execution_exception for built-in and mex functions
John W. Eaton <jwe@octave.org>
parents:
7017
diff
changeset
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146 try |
1e01db14700b
catch octave_execution_exception for built-in and mex functions
John W. Eaton <jwe@octave.org>
parents:
7017
diff
changeset
|
147 { |
1e01db14700b
catch octave_execution_exception for built-in and mex functions
John W. Eaton <jwe@octave.org>
parents:
7017
diff
changeset
|
148 retval = call_mex (have_fmex, mex_fcn_ptr, args, nargout, this); |
1e01db14700b
catch octave_execution_exception for built-in and mex functions
John W. Eaton <jwe@octave.org>
parents:
7017
diff
changeset
|
149 } |
1e01db14700b
catch octave_execution_exception for built-in and mex functions
John W. Eaton <jwe@octave.org>
parents:
7017
diff
changeset
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150 catch (octave_execution_exception) |
1e01db14700b
catch octave_execution_exception for built-in and mex functions
John W. Eaton <jwe@octave.org>
parents:
7017
diff
changeset
|
151 { |
1e01db14700b
catch octave_execution_exception for built-in and mex functions
John W. Eaton <jwe@octave.org>
parents:
7017
diff
changeset
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152 octave_exception_state = octave_no_exception; |
1e01db14700b
catch octave_execution_exception for built-in and mex functions
John W. Eaton <jwe@octave.org>
parents:
7017
diff
changeset
|
153 error ("caught execution error in library function"); |
1e01db14700b
catch octave_execution_exception for built-in and mex functions
John W. Eaton <jwe@octave.org>
parents:
7017
diff
changeset
|
154 } |
5864 | 155 |
156 unwind_protect::run_frame ("mex_func_eval"); | |
157 } | |
158 | |
159 return retval; | |
160 } | |
161 | |
162 /* | |
163 ;;; Local Variables: *** | |
164 ;;; mode: C++ *** | |
165 ;;; End: *** | |
166 */ |