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1 /* |
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2 |
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3 Copyright (C) 2016 Colin B. Macdonald |
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4 |
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5 This file is part of Pytave. |
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6 |
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7 Pytave 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 3 of the License, or (at your |
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10 option) any later version. |
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11 |
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12 Pytave 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 Pytave; see the file COPYING. If not, see |
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19 <http://www.gnu.org/licenses/>. |
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20 |
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21 */ |
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22 |
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23 #ifdef HAVE_CONFIG_H |
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24 #include <config.h> |
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25 #endif |
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26 |
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27 #include <dlfcn.h> |
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28 #include <boost/python.hpp> |
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29 #include <boost/python/numeric.hpp> |
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30 |
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31 /* Both boost::python and octave define HAVE_STAT and HAVE_FSTAT. Ideally, |
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32 they shouldn't expose their configuration in the header files, but they do. |
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33 This silences the compiler warning. */ |
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34 #undef HAVE_STAT |
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35 #undef HAVE_FSTAT |
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36 |
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37 #include <oct.h> |
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38 |
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39 #define PYTAVE_DO_DECLARE_SYMBOL |
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40 #include "pytavedefs.h" |
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41 #include "arrayobjectdefs.h" |
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42 #include "exceptions.h" |
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43 #include "python_to_octave.h" |
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44 |
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45 using namespace boost::python; |
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46 |
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47 DEFUN_DLD (pyexec, args, nargout, |
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48 "-*- texinfo -*-\n\ |
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49 @deftypefn {Loadable Function} pyexec (@var{func})\n\ |
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50 Execute some python code.\n\ |
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51 \n\ |
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52 @end deftypefn") |
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53 { |
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54 octave_value_list retval; |
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55 |
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56 int nargin = args.length (); |
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57 |
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58 if (nargin != 1) |
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59 { |
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60 print_usage (); |
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61 return retval; |
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62 } |
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63 |
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64 std::string code = args(0).string_value (); |
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65 |
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66 dlopen("libpython2.7.so", RTLD_GLOBAL|RTLD_LAZY); |
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67 |
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68 Py_Initialize (); |
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69 |
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70 try |
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71 { |
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72 object main_module = import ("__main__"); |
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73 object main_namespace = main_module.attr ("__dict__"); |
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74 // TODO: figure out exec return code: |
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75 // http://www.boost.org/doc/libs/1_38_0/libs/python/doc/v2/exec.html |
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76 exec (code.c_str (), main_namespace, main_namespace); |
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77 //std::cerr << "exec done" << std::endl; |
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78 |
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79 } |
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80 // just copy-pasted from py.cc |
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81 catch (pytave::object_convert_exception const &) |
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82 { |
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83 error ("pyexec: error in return value type conversion"); |
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84 } |
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85 catch (error_already_set const &) |
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86 { |
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87 PyObject *ptype, *pvalue, *ptraceback; |
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88 PyErr_Fetch (&ptype, &pvalue, &ptraceback); |
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89 |
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90 try |
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91 { |
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92 std::string message = extract<std::string> (pvalue); |
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93 error ("pyexec: %s", message.c_str ()); |
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94 } |
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95 catch (error_already_set const &) |
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96 { |
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97 PyErr_Restore (ptype, pvalue, ptraceback); |
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98 PyErr_Print (); |
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99 } |
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100 } |
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101 return retval; |
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102 } |
