Mercurial > hg > octave-nkf
annotate src/ov-mex-fcn.cc @ 8806:c7864bb74914
avoid some GCC warnings
| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Wed, 18 Feb 2009 13:45:20 -0500 |
| parents | 3100283874d7 |
| children | eb63fbe60fab |
| rev | line source |
|---|---|
| 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" | |
|
8011
3100283874d7
improve backtrace error messages
John W. Eaton <jwe@octave.org>
parents:
7872
diff
changeset
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32 #include "gripes.h" |
| 5864 | 33 #include "oct-obj.h" |
| 34 #include "ov-mex-fcn.h" | |
| 35 #include "ov.h" | |
| 36 #include "toplev.h" | |
| 37 #include "unwind-prot.h" | |
| 38 | |
| 39 DEFINE_OCTAVE_ALLOCATOR (octave_mex_function); | |
| 40 | |
| 41 DEFINE_OV_TYPEID_FUNCTIONS_AND_DATA (octave_mex_function, | |
| 42 "mex function", "mex function"); | |
| 43 | |
| 44 octave_mex_function::octave_mex_function | |
| 45 (void *fptr, bool fmex, const octave_shlib& shl, | |
| 46 const std::string& nm) | |
| 6068 | 47 : octave_function (nm), mex_fcn_ptr (fptr), exit_fcn_ptr (0), |
| 48 have_fmex (fmex), sh_lib (shl) | |
| 5864 | 49 { |
| 50 mark_fcn_file_up_to_date (time_parsed ()); | |
| 51 | |
| 52 std::string file_name = fcn_file_name (); | |
| 53 | |
| 54 system_fcn_file | |
| 55 = (! file_name.empty () | |
| 56 && Voct_file_dir == file_name.substr (0, Voct_file_dir.length ())); | |
| 57 } | |
| 58 | |
| 59 octave_mex_function::~octave_mex_function (void) | |
| 60 { | |
| 6068 | 61 if (exit_fcn_ptr) |
| 62 (*exit_fcn_ptr) (); | |
| 63 | |
| 7872 | 64 octave_dynamic_loader::remove_mex (my_name, sh_lib); |
| 5864 | 65 } |
| 66 | |
| 67 std::string | |
| 68 octave_mex_function::fcn_file_name (void) const | |
| 69 { | |
| 70 return sh_lib.file_name (); | |
| 71 } | |
| 72 | |
| 73 octave_time | |
| 74 octave_mex_function::time_parsed (void) const | |
| 75 { | |
| 76 return sh_lib.time_loaded (); | |
| 77 } | |
| 78 | |
| 79 octave_value_list | |
| 80 octave_mex_function::subsref (const std::string& type, | |
| 81 const std::list<octave_value_list>& idx, | |
| 82 int nargout) | |
| 83 { | |
| 84 octave_value_list retval; | |
| 85 | |
| 86 switch (type[0]) | |
| 87 { | |
| 88 case '(': | |
| 89 { | |
| 90 int tmp_nargout = (type.length () > 1 && nargout == 0) ? 1 : nargout; | |
| 91 | |
| 92 retval = do_multi_index_op (tmp_nargout, idx.front ()); | |
| 93 } | |
| 94 break; | |
| 95 | |
| 96 case '{': | |
| 97 case '.': | |
| 98 { | |
| 99 std::string nm = type_name (); | |
| 100 error ("%s cannot be indexed with %c", nm.c_str (), type[0]); | |
| 101 } | |
| 102 break; | |
| 103 | |
| 104 default: | |
| 105 panic_impossible (); | |
| 106 } | |
| 107 | |
| 108 // FIXME -- perhaps there should be an | |
| 109 // octave_value_list::next_subsref member function? See also | |
| 110 // octave_user_function::subsref. | |
| 111 // | |
| 112 // FIXME -- Note that if a function call returns multiple | |
| 113 // values, and there is further indexing to perform, then we are | |
| 114 // ignoring all but the first value. Is this really what we want to | |
| 115 // do? If it is not, then what should happen for stat("file").size, | |
| 116 // for exmaple? | |
| 117 | |
| 118 if (idx.size () > 1) | |
| 119 retval = retval(0).next_subsref (nargout, type, idx); | |
| 120 | |
| 121 return retval; | |
| 122 } | |
| 123 | |
| 8806 | 124 // FIXME -- shouldn't this declaration be a header file somewhere? |
| 5864 | 125 extern octave_value_list |
| 6068 | 126 call_mex (bool have_fmex, void *f, const octave_value_list& args, |
| 127 int nargout, octave_mex_function *curr_mex_fcn); | |
| 5864 | 128 |
| 129 octave_value_list | |
| 130 octave_mex_function::do_multi_index_op (int nargout, | |
| 131 const octave_value_list& args) | |
| 132 { | |
| 133 octave_value_list retval; | |
| 134 | |
| 135 if (error_state) | |
| 136 return retval; | |
| 137 | |
| 138 if (args.has_magic_colon ()) | |
| 139 ::error ("invalid use of colon in function argument list"); | |
| 140 else | |
| 141 { | |
| 142 unwind_protect::begin_frame ("mex_func_eval"); | |
| 143 | |
| 144 octave_call_stack::push (this); | |
| 145 | |
| 146 unwind_protect::add (octave_call_stack::unwind_pop, 0); | |
| 147 | |
|
7487
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catch octave_execution_exception for built-in and mex functions
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parents:
7017
diff
changeset
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148 try |
|
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
|
150 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
|
151 } |
|
1e01db14700b
catch octave_execution_exception for built-in and mex functions
John W. Eaton <jwe@octave.org>
parents:
7017
diff
changeset
|
152 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
|
153 { |
|
8011
3100283874d7
improve backtrace error messages
John W. Eaton <jwe@octave.org>
parents:
7872
diff
changeset
|
154 gripe_library_execution_error (); |
|
7487
1e01db14700b
catch octave_execution_exception for built-in and mex functions
John W. Eaton <jwe@octave.org>
parents:
7017
diff
changeset
|
155 } |
| 5864 | 156 |
| 157 unwind_protect::run_frame ("mex_func_eval"); | |
| 158 } | |
| 159 | |
| 160 return retval; | |
| 161 } | |
| 162 | |
| 163 /* | |
| 164 ;;; Local Variables: *** | |
| 165 ;;; mode: C++ *** | |
| 166 ;;; End: *** | |
| 167 */ |