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<div class="navpath"><a class="el" href="dir_88117dff2735251a69c8eb9084477714.html">src</a> » <a class="el" href="dir_dc63a72a31e1c272514e3670d5c54e12.html">utils</a>
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<h1>pythonutils.cpp</h1><a href="a00233.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/***************************************************************************</span>
<a name="l00002"></a>00002 <span class="comment"> file : $URL: https://frepple.svn.sourceforge.net/svnroot/frepple/trunk/src/utils/pythonutils.cpp $</span>
<a name="l00003"></a>00003 <span class="comment"> version : $LastChangedRevision: 1315 $ $LastChangedBy: jdetaeye $</span>
<a name="l00004"></a>00004 <span class="comment"> date : $LastChangedDate: 2010-07-17 18:08:53 +0200 (Sat, 17 Jul 2010) $</span>
<a name="l00005"></a>00005 <span class="comment"> ***************************************************************************/</span>
<a name="l00006"></a>00006
<a name="l00007"></a>00007 <span class="comment">/***************************************************************************</span>
<a name="l00008"></a>00008 <span class="comment"> * *</span>
<a name="l00009"></a>00009 <span class="comment"> * Copyright (C) 2007-2010 by Johan De Taeye *</span>
<a name="l00010"></a>00010 <span class="comment"> * *</span>
<a name="l00011"></a>00011 <span class="comment"> * This library is free software; you can redistribute it and/or modify it *</span>
<a name="l00012"></a>00012 <span class="comment"> * under the terms of the GNU Lesser General Public License as published *</span>
<a name="l00013"></a>00013 <span class="comment"> * by the Free Software Foundation; either version 2.1 of the License, or *</span>
<a name="l00014"></a>00014 <span class="comment"> * (at your option) any later version. *</span>
<a name="l00015"></a>00015 <span class="comment"> * *</span>
<a name="l00016"></a>00016 <span class="comment"> * This library is distributed in the hope that it will be useful, *</span>
<a name="l00017"></a>00017 <span class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of *</span>
<a name="l00018"></a>00018 <span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser *</span>
<a name="l00019"></a>00019 <span class="comment"> * General Public License for more details. *</span>
<a name="l00020"></a>00020 <span class="comment"> * *</span>
<a name="l00021"></a>00021 <span class="comment"> * You should have received a copy of the GNU Lesser General Public *</span>
<a name="l00022"></a>00022 <span class="comment"> * License along with this library; if not, write to the Free Software *</span>
<a name="l00023"></a>00023 <span class="comment"> * Foundation Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 *</span>
<a name="l00024"></a>00024 <span class="comment"> * USA *</span>
<a name="l00025"></a>00025 <span class="comment"> * *</span>
<a name="l00026"></a>00026 <span class="comment"> ***************************************************************************/</span>
<a name="l00027"></a>00027 <span class="comment"></span>
<a name="l00028"></a>00028 <span class="comment">/** @file pythonutils.cpp</span>
<a name="l00029"></a>00029 <span class="comment"> * @brief Reusable functions for python functionality.</span>
<a name="l00030"></a>00030 <span class="comment"> *</span>
<a name="l00031"></a>00031 <span class="comment"> * The structure of the C++ wrappers around the C Python API is heavily</span>
<a name="l00032"></a>00032 <span class="comment"> * inspired on the design of PyCXX.<br></span>
<a name="l00033"></a>00033 <span class="comment"> * More information can be found on http://cxx.sourceforge.net</span>
<a name="l00034"></a>00034 <span class="comment"> */</span>
<a name="l00035"></a>00035
<a name="l00036"></a><a class="code" href="a00233.html#a342983a479ae7a921be5face83fdb029">00036</a> <span class="preprocessor">#define FREPPLE_CORE</span>
<a name="l00037"></a>00037 <span class="preprocessor"></span><span class="preprocessor">#include "<a class="code" href="a00252.html" title="Header file for auxilary classes.">frepple/utils.h</a>"</span>
<a name="l00038"></a>00038
<a name="l00039"></a>00039 <span class="keyword">namespace </span>frepple
<a name="l00040"></a>00040 {
<a name="l00041"></a>00041 <span class="keyword">namespace </span>utils
<a name="l00042"></a>00042 {
<a name="l00043"></a>00043
<a name="l00044"></a><a class="code" href="a00257.html#a5e53a387c0e6c65a18ee76396f03d1d0">00044</a> <a class="code" href="a00252.html#a99b94ab8c2f2a32277559c7b2b0a054c">DECLARE_EXPORT</a> PyObject* <a class="code" href="a00257.html#a5e53a387c0e6c65a18ee76396f03d1d0" title="Python exception class matching with frepple::LogicException.">PythonLogicException</a> = NULL;
<a name="l00045"></a><a class="code" href="a00257.html#a75c689d2dca4282e2ca0dad79dab1063">00045</a> <a class="code" href="a00252.html#a99b94ab8c2f2a32277559c7b2b0a054c">DECLARE_EXPORT</a> PyObject* <a class="code" href="a00257.html#a75c689d2dca4282e2ca0dad79dab1063" title="Python exception class matching with frepple::DataException.">PythonDataException</a> = NULL;
<a name="l00046"></a><a class="code" href="a00257.html#ad7d6854c478a3b4c454bb0b6913e1dc6">00046</a> <a class="code" href="a00252.html#a99b94ab8c2f2a32277559c7b2b0a054c">DECLARE_EXPORT</a> PyObject* <a class="code" href="a00257.html#ad7d6854c478a3b4c454bb0b6913e1dc6" title="Python exception class matching with frepple::RuntimeException.">PythonRuntimeException</a> = NULL;
<a name="l00047"></a>00047
<a name="l00048"></a>00048 <span class="keyword">const</span> <a class="code" href="a00115.html" title="This class stores metadata about the classes in the library. The stored information...">MetaClass</a>* <a class="code" href="a00033.html#a679228b0372db2965ec58e1c34760ab7">CommandPython::metadata2</a>;
<a name="l00049"></a>00049
<a name="l00050"></a>00050 <a class="code" href="a00252.html#a99b94ab8c2f2a32277559c7b2b0a054c">DECLARE_EXPORT</a> PyObject *PythonInterpreter::module = NULL;
<a name="l00051"></a>00051 <a class="code" href="a00252.html#a99b94ab8c2f2a32277559c7b2b0a054c">DECLARE_EXPORT</a> <span class="keywordtype">string</span> PythonInterpreter::encoding;
<a name="l00052"></a>00052
<a name="l00053"></a>00053
<a name="l00054"></a><a class="code" href="a00033.html#a3a7108daca9313128fac9864dd63b332">00054</a> <span class="keywordtype">void</span> <a class="code" href="a00033.html#a3a7108daca9313128fac9864dd63b332">CommandPython::execute</a>()
<a name="l00055"></a>00055 {
<a name="l00056"></a>00056 <span class="comment">// Log</span>
<a name="l00057"></a>00057 <span class="keywordflow">if</span> (<a class="code" href="a00025.html#a78c1d8e342cd245457d2cdde4e471f42">getVerbose</a>())
<a name="l00058"></a>00058 {
<a name="l00059"></a>00059 <a class="code" href="a00257.html#a4af9f241e955122820c5e81ceb33edb5">logger</a> << <span class="stringliteral">"Start executing python "</span>;
<a name="l00060"></a>00060 <span class="keywordflow">if</span> (!cmd.empty()) <a class="code" href="a00257.html#a4af9f241e955122820c5e81ceb33edb5">logger</a> << <span class="stringliteral">"command"</span>;
<a name="l00061"></a>00061 <span class="keywordflow">if</span> (!filename.empty()) <a class="code" href="a00257.html#a4af9f241e955122820c5e81ceb33edb5">logger</a> << <span class="stringliteral">"file"</span>;
<a name="l00062"></a>00062 <a class="code" href="a00257.html#a4af9f241e955122820c5e81ceb33edb5">logger</a> << <span class="stringliteral">" at "</span> << <a class="code" href="a00049.html#ad203bd74ddc1e3b7b961f77fa60388f6">Date::now</a>() << endl;
<a name="l00063"></a>00063 }
<a name="l00064"></a>00064 <a class="code" href="a00180.html" title="This class is used to measure the processor time used by the program.">Timer</a> t;
<a name="l00065"></a>00065
<a name="l00066"></a>00066 <span class="comment">// Evaluate data fields</span>
<a name="l00067"></a>00067 <span class="keywordtype">string</span> c;
<a name="l00068"></a>00068 <span class="keywordflow">if</span> (!cmd.empty())
<a name="l00069"></a>00069 <span class="comment">// A command to be executed.</span>
<a name="l00070"></a>00070 c = cmd + <span class="stringliteral">"\n"</span>; <span class="comment">// Make sure last line is ended properly</span>
<a name="l00071"></a>00071 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (!filename.empty())
<a name="l00072"></a>00072 {
<a name="l00073"></a>00073 <span class="comment">// A file to be executed.</span>
<a name="l00074"></a>00074 <span class="comment">// We build an equivalent python command rather than using the</span>
<a name="l00075"></a>00075 <span class="comment">// PyRun_File function. On windows different versions of the</span>
<a name="l00076"></a>00076 <span class="comment">// VC compiler have a different structure for FILE, thus making it</span>
<a name="l00077"></a>00077 <span class="comment">// impossible to use a lib compiled in python version x when compiling</span>
<a name="l00078"></a>00078 <span class="comment">// under version y. Quite ugly... :-( :-( :-(</span>
<a name="l00079"></a>00079 c = filename;
<a name="l00080"></a>00080 <span class="keywordflow">for</span> (string::size_type pos = c.find_first_of(<span class="stringliteral">"'"</span>, 0);
<a name="l00081"></a>00081 pos < string::npos;
<a name="l00082"></a>00082 pos = c.find_first_of(<span class="stringliteral">"'"</span>, pos))
<a name="l00083"></a>00083 {
<a name="l00084"></a>00084 c.replace(pos,1,<span class="stringliteral">"\\'"</span>,2); <span class="comment">// Replacing ' with \'</span>
<a name="l00085"></a>00085 pos+=2;
<a name="l00086"></a>00086 }
<a name="l00087"></a>00087 c = <span class="stringliteral">"execfile(ur'"</span> + c + <span class="stringliteral">"')\n"</span>;
<a name="l00088"></a>00088 }
<a name="l00089"></a>00089 <span class="keywordflow">else</span> <span class="keywordflow">throw</span> <a class="code" href="a00048.html" title="An exception of this type is thrown when data errors are found.">DataException</a>(<span class="stringliteral">"Python command without statement or filename"</span>);
<a name="l00090"></a>00090
<a name="l00091"></a>00091 <span class="comment">// Pass to the interpreter.</span>
<a name="l00092"></a>00092 <a class="code" href="a00033.html#a3a7108daca9313128fac9864dd63b332">PythonInterpreter::execute</a>(c.c_str());
<a name="l00093"></a>00093
<a name="l00094"></a>00094 <span class="comment">// Log</span>
<a name="l00095"></a>00095 <span class="keywordflow">if</span> (<a class="code" href="a00025.html#a78c1d8e342cd245457d2cdde4e471f42">getVerbose</a>()) <a class="code" href="a00257.html#a4af9f241e955122820c5e81ceb33edb5">logger</a> << <span class="stringliteral">"Finished executing python at "</span>
<a name="l00096"></a>00096 << <a class="code" href="a00049.html#ad203bd74ddc1e3b7b961f77fa60388f6">Date::now</a>() << <span class="stringliteral">" : "</span> << t << endl;
<a name="l00097"></a>00097 }
<a name="l00098"></a>00098
<a name="l00099"></a>00099
<a name="l00100"></a><a class="code" href="a00153.html#a25198fb09ba3dd405f99de38cf5b912a">00100</a> <span class="keywordtype">void</span> <a class="code" href="a00153.html#a25198fb09ba3dd405f99de38cf5b912a">PythonInterpreter::initialize</a>()
<a name="l00101"></a>00101 {
<a name="l00102"></a>00102 <span class="comment">// Initialize the interpreter and the frepple module</span>
<a name="l00103"></a>00103 Py_InitializeEx(0); <span class="comment">// The arg 0 indicates that the interpreter doesn't</span>
<a name="l00104"></a>00104 <span class="comment">// implement its own signal handler</span>
<a name="l00105"></a>00105 PyEval_InitThreads(); <span class="comment">// Initializes threads and captures global lock</span>
<a name="l00106"></a>00106 module = Py_InitModule3(<span class="stringliteral">"frepple"</span>, NULL, <span class="stringliteral">"Access to the frePPLe library"</span>);
<a name="l00107"></a>00107 <span class="keywordflow">if</span> (!module)
<a name="l00108"></a>00108 {
<a name="l00109"></a>00109 PyEval_ReleaseLock();
<a name="l00110"></a>00110 <span class="keywordflow">throw</span> <a class="code" href="a00162.html" title="An exception of this type is thrown when the library runs into problems that are...">RuntimeException</a>(<span class="stringliteral">"Can't initialize Python interpreter"</span>);
<a name="l00111"></a>00111 }
<a name="l00112"></a>00112
<a name="l00113"></a>00113 <span class="comment">// Make the datetime types available</span>
<a name="l00114"></a>00114 PyDateTime_IMPORT;
<a name="l00115"></a>00115
<a name="l00116"></a>00116 <span class="comment">// Create python exception types</span>
<a name="l00117"></a>00117 <span class="keywordtype">int</span> nok = 0;
<a name="l00118"></a>00118 <a class="code" href="a00257.html#a5e53a387c0e6c65a18ee76396f03d1d0" title="Python exception class matching with frepple::LogicException.">PythonLogicException</a> = PyErr_NewException(<span class="stringliteral">"frepple.LogicException"</span>, NULL, NULL);
<a name="l00119"></a>00119 Py_IncRef(<a class="code" href="a00257.html#a5e53a387c0e6c65a18ee76396f03d1d0" title="Python exception class matching with frepple::LogicException.">PythonLogicException</a>);
<a name="l00120"></a>00120 nok += PyModule_AddObject(module, <span class="stringliteral">"LogicException"</span>, <a class="code" href="a00257.html#a5e53a387c0e6c65a18ee76396f03d1d0" title="Python exception class matching with frepple::LogicException.">PythonLogicException</a>);
<a name="l00121"></a>00121 <a class="code" href="a00257.html#a75c689d2dca4282e2ca0dad79dab1063" title="Python exception class matching with frepple::DataException.">PythonDataException</a> = PyErr_NewException(<span class="stringliteral">"frepple.DataException"</span>, NULL, NULL);
<a name="l00122"></a>00122 Py_IncRef(<a class="code" href="a00257.html#a75c689d2dca4282e2ca0dad79dab1063" title="Python exception class matching with frepple::DataException.">PythonDataException</a>);
<a name="l00123"></a>00123 nok += PyModule_AddObject(module, <span class="stringliteral">"DataException"</span>, <a class="code" href="a00257.html#a75c689d2dca4282e2ca0dad79dab1063" title="Python exception class matching with frepple::DataException.">PythonDataException</a>);
<a name="l00124"></a>00124 <a class="code" href="a00257.html#ad7d6854c478a3b4c454bb0b6913e1dc6" title="Python exception class matching with frepple::RuntimeException.">PythonRuntimeException</a> = PyErr_NewException(<span class="stringliteral">"frepple.RuntimeException"</span>, NULL, NULL);
<a name="l00125"></a>00125 Py_IncRef(<a class="code" href="a00257.html#ad7d6854c478a3b4c454bb0b6913e1dc6" title="Python exception class matching with frepple::RuntimeException.">PythonRuntimeException</a>);
<a name="l00126"></a>00126 nok += PyModule_AddObject(module, <span class="stringliteral">"RuntimeException"</span>, <a class="code" href="a00257.html#ad7d6854c478a3b4c454bb0b6913e1dc6" title="Python exception class matching with frepple::RuntimeException.">PythonRuntimeException</a>);
<a name="l00127"></a>00127
<a name="l00128"></a>00128 <span class="comment">// Add a string constant for the version</span>
<a name="l00129"></a>00129 nok += PyModule_AddStringConstant(module, <span class="stringliteral">"version"</span>, <a class="code" href="a00252.html#aa326a05d5e30f9e9a4bb0b4469d5d0c0">PACKAGE_VERSION</a>);
<a name="l00130"></a>00130
<a name="l00131"></a>00131 <span class="comment">// Redirect the stderr and stdout streams of Python</span>
<a name="l00132"></a>00132 <a class="code" href="a00153.html#a3d9447646d6d4b6e9ab323425e731712">registerGlobalMethod</a>(<span class="stringliteral">"log"</span>, python_log, METH_VARARGS,
<a name="l00133"></a>00133 <span class="stringliteral">"Prints a string to the frePPLe log file."</span>, <span class="keyword">false</span>);
<a name="l00134"></a>00134 PyRun_SimpleString(
<a name="l00135"></a>00135 <span class="stringliteral">"import frepple, sys\n"</span>
<a name="l00136"></a>00136 <span class="stringliteral">"class redirect:\n"</span>
<a name="l00137"></a>00137 <span class="stringliteral">"\tdef write(self,str):\n"</span>
<a name="l00138"></a>00138 <span class="stringliteral">"\t\tfrepple.log(str)\n"</span>
<a name="l00139"></a>00139 <span class="stringliteral">"sys.stdout = redirect()\n"</span>
<a name="l00140"></a>00140 <span class="stringliteral">"sys.stderr = redirect()"</span>
<a name="l00141"></a>00141 );
<a name="l00142"></a>00142
<a name="l00143"></a>00143 <span class="comment">// Get the preferred Python locale</span>
<a name="l00144"></a>00144 PyObject* localemodule = PyImport_ImportModule(<span class="stringliteral">"locale"</span>);
<a name="l00145"></a>00145 <span class="keywordflow">if</span> (!localemodule)
<a name="l00146"></a>00146 <span class="keywordflow">throw</span> <a class="code" href="a00162.html" title="An exception of this type is thrown when the library runs into problems that are...">RuntimeException</a>(<span class="stringliteral">"Can't import 'locale' Python module"</span>);
<a name="l00147"></a>00147 <span class="keywordflow">else</span>
<a name="l00148"></a>00148 {
<a name="l00149"></a>00149 PyObject* moduledict = PyModule_GetDict(localemodule);
<a name="l00150"></a>00150 PyObject* func = PyDict_GetItemString(moduledict, <span class="stringliteral">"getpreferredencoding"</span>);
<a name="l00151"></a>00151 <span class="keywordflow">if</span> (!func)
<a name="l00152"></a>00152 <span class="keywordflow">throw</span> <a class="code" href="a00162.html" title="An exception of this type is thrown when the library runs into problems that are...">RuntimeException</a>(<span class="stringliteral">"Can't find 'getpreferredencoding' Python function"</span>);
<a name="l00153"></a>00153 PyObject* retval = PyEval_CallObject(func, NULL);
<a name="l00154"></a>00154 <span class="keywordflow">if</span> (retval)
<a name="l00155"></a>00155 {
<a name="l00156"></a>00156 encoding = PyString_AsString(retval);
<a name="l00157"></a>00157 Py_XDECREF(retval);
<a name="l00158"></a>00158 }
<a name="l00159"></a>00159 Py_XDECREF(localemodule);
<a name="l00160"></a>00160 }
<a name="l00161"></a>00161
<a name="l00162"></a>00162 <span class="comment">// Release the lock</span>
<a name="l00163"></a>00163 PyEval_ReleaseLock();
<a name="l00164"></a>00164
<a name="l00165"></a>00165 <span class="comment">// A final check...</span>
<a name="l00166"></a>00166 <span class="keywordflow">if</span> (nok) <span class="keywordflow">throw</span> <a class="code" href="a00162.html" title="An exception of this type is thrown when the library runs into problems that are...">RuntimeException</a>(<span class="stringliteral">"Can't initialize Python interpreter"</span>);
<a name="l00167"></a>00167 }
<a name="l00168"></a>00168
<a name="l00169"></a>00169
<a name="l00170"></a><a class="code" href="a00153.html#a6b12865d7cdada51f05ef201b908910a">00170</a> <a class="code" href="a00252.html#a99b94ab8c2f2a32277559c7b2b0a054c">DECLARE_EXPORT</a> <span class="keywordtype">void</span> <a class="code" href="a00153.html#a6b12865d7cdada51f05ef201b908910a">PythonInterpreter::addThread</a>()
<a name="l00171"></a>00171 {
<a name="l00172"></a>00172 <span class="comment">// Check whether the thread already has a Python state</span>
<a name="l00173"></a>00173 PyThreadState * myThreadState = PyGILState_GetThisThreadState();
<a name="l00174"></a>00174 <span class="keywordflow">if</span> (myThreadState) <span class="keywordflow">return</span>;
<a name="l00175"></a>00175
<a name="l00176"></a>00176 <span class="comment">// Create a new state</span>
<a name="l00177"></a>00177 PyThreadState *tcur = PyThreadState_New(PyInterpreterState_Head());
<a name="l00178"></a>00178 <span class="keywordflow">if</span> (!tcur) <span class="keywordflow">throw</span> <a class="code" href="a00162.html" title="An exception of this type is thrown when the library runs into problems that are...">RuntimeException</a>(<span class="stringliteral">"Can't create new thread state"</span>);
<a name="l00179"></a>00179
<a name="l00180"></a>00180 <span class="comment">// Make the new state current</span>
<a name="l00181"></a>00181 PyEval_RestoreThread(tcur);
<a name="l00182"></a>00182 PyEval_ReleaseLock();
<a name="l00183"></a>00183 }
<a name="l00184"></a>00184
<a name="l00185"></a>00185
<a name="l00186"></a><a class="code" href="a00153.html#a89888308625faa01991c6c89ba6706dc">00186</a> <a class="code" href="a00252.html#a99b94ab8c2f2a32277559c7b2b0a054c">DECLARE_EXPORT</a> <span class="keywordtype">void</span> <a class="code" href="a00153.html#a89888308625faa01991c6c89ba6706dc">PythonInterpreter::deleteThread</a>()
<a name="l00187"></a>00187 {
<a name="l00188"></a>00188 <span class="comment">// Check whether the thread already has a Python state</span>
<a name="l00189"></a>00189 PyThreadState * tcur = PyGILState_GetThisThreadState();
<a name="l00190"></a>00190 <span class="keywordflow">if</span> (!tcur) <span class="keywordflow">return</span>;
<a name="l00191"></a>00191
<a name="l00192"></a>00192 <span class="comment">// Delete the current Python thread state</span>
<a name="l00193"></a>00193 PyEval_RestoreThread(tcur);
<a name="l00194"></a>00194 PyThreadState_Clear(tcur);
<a name="l00195"></a>00195 PyThreadState_DeleteCurrent(); <span class="comment">// This releases the GIL too!</span>
<a name="l00196"></a>00196 }
<a name="l00197"></a>00197
<a name="l00198"></a>00198
<a name="l00199"></a><a class="code" href="a00153.html#a949cf0e3a7215f64d7e491402aa1a62d">00199</a> <a class="code" href="a00252.html#a99b94ab8c2f2a32277559c7b2b0a054c">DECLARE_EXPORT</a> <span class="keywordtype">void</span> <a class="code" href="a00153.html#a949cf0e3a7215f64d7e491402aa1a62d">PythonInterpreter::execute</a>(<span class="keyword">const</span> <span class="keywordtype">char</span>* cmd)
<a name="l00200"></a>00200 {
<a name="l00201"></a>00201 <span class="comment">// Get the global lock.</span>
<a name="l00202"></a>00202 <span class="comment">// After this command we are the only thread executing Python code.</span>
<a name="l00203"></a>00203 PyThreadState *myThreadState = PyGILState_GetThisThreadState();
<a name="l00204"></a>00204 <span class="keywordflow">if</span> (!myThreadState)
<a name="l00205"></a>00205 <span class="keywordflow">throw</span> <a class="code" href="a00162.html" title="An exception of this type is thrown when the library runs into problems that are...">RuntimeException</a>(<span class="stringliteral">"No Python thread state for this thread"</span>);
<a name="l00206"></a>00206 PyEval_RestoreThread(myThreadState);
<a name="l00207"></a>00207
<a name="l00208"></a>00208 <span class="comment">// Execute the command</span>
<a name="l00209"></a>00209 PyObject *m = PyImport_AddModule(<span class="stringliteral">"__main__"</span>);
<a name="l00210"></a>00210 <span class="keywordflow">if</span> (!m)
<a name="l00211"></a>00211 {
<a name="l00212"></a>00212 <span class="comment">// Release the global python lock</span>
<a name="l00213"></a>00213 PyEval_ReleaseLock();
<a name="l00214"></a>00214 <span class="keywordflow">throw</span> <a class="code" href="a00162.html" title="An exception of this type is thrown when the library runs into problems that are...">RuntimeException</a>(<span class="stringliteral">"Can't initialize Python interpreter"</span>);
<a name="l00215"></a>00215 }
<a name="l00216"></a>00216 PyObject *d = PyModule_GetDict(m);
<a name="l00217"></a>00217 <span class="keywordflow">if</span> (!d)
<a name="l00218"></a>00218 {
<a name="l00219"></a>00219 <span class="comment">// Release the global python lock</span>
<a name="l00220"></a>00220 PyEval_ReleaseLock();
<a name="l00221"></a>00221 <span class="keywordflow">throw</span> <a class="code" href="a00162.html" title="An exception of this type is thrown when the library runs into problems that are...">RuntimeException</a>(<span class="stringliteral">"Can't initialize Python interpreter"</span>);
<a name="l00222"></a>00222 }
<a name="l00223"></a>00223
<a name="l00224"></a>00224 <span class="comment">// Execute the Python code. Note that during the call the python lock can be</span>
<a name="l00225"></a>00225 <span class="comment">// temporarily released.</span>
<a name="l00226"></a>00226 PyObject *v = PyRun_String(cmd, Py_file_input, d, d);
<a name="l00227"></a>00227 <span class="keywordflow">if</span> (!v)
<a name="l00228"></a>00228 {
<a name="l00229"></a>00229 <span class="comment">// Print the error message</span>
<a name="l00230"></a>00230 PyErr_Print();
<a name="l00231"></a>00231 <span class="comment">// Release the global python lock</span>
<a name="l00232"></a>00232 PyEval_ReleaseLock();
<a name="l00233"></a>00233 <span class="keywordflow">throw</span> <a class="code" href="a00162.html" title="An exception of this type is thrown when the library runs into problems that are...">RuntimeException</a>(<span class="stringliteral">"Error executing Python command"</span>);
<a name="l00234"></a>00234 }
<a name="l00235"></a>00235 Py_DECREF(v);
<a name="l00236"></a>00236 <span class="keywordflow">if</span> (Py_FlushLine()) PyErr_Clear();
<a name="l00237"></a>00237
<a name="l00238"></a>00238 <span class="comment">// Release the global python lock</span>
<a name="l00239"></a>00239 PyEval_ReleaseLock();
<a name="l00240"></a>00240 }
<a name="l00241"></a>00241
<a name="l00242"></a>00242
<a name="l00243"></a><a class="code" href="a00153.html#a3d9447646d6d4b6e9ab323425e731712">00243</a> <a class="code" href="a00252.html#a99b94ab8c2f2a32277559c7b2b0a054c">DECLARE_EXPORT</a> <span class="keywordtype">void</span> <a class="code" href="a00153.html#a3d9447646d6d4b6e9ab323425e731712">PythonInterpreter::registerGlobalMethod</a>(
<a name="l00244"></a>00244 <span class="keyword">const</span> <span class="keywordtype">char</span>* name, PyCFunction method, <span class="keywordtype">int</span> flags, <span class="keyword">const</span> <span class="keywordtype">char</span>* doc, <span class="keywordtype">bool</span> lock
<a name="l00245"></a>00245 )
<a name="l00246"></a>00246 {
<a name="l00247"></a>00247 <span class="comment">// Define a new method object.</span>
<a name="l00248"></a>00248 <span class="comment">// We need are leaking the memory allocated for it to assure the data</span>
<a name="l00249"></a>00249 <span class="comment">// are available at all times to Python.</span>
<a name="l00250"></a>00250 <span class="keywordtype">string</span> *leakingName = <span class="keyword">new</span> string(name);
<a name="l00251"></a>00251 <span class="keywordtype">string</span> *leakingDoc = <span class="keyword">new</span> string(doc);
<a name="l00252"></a>00252 PyMethodDef *newMethod = <span class="keyword">new</span> PyMethodDef;
<a name="l00253"></a>00253 newMethod->ml_name = leakingName->c_str();
<a name="l00254"></a>00254 newMethod->ml_meth = method;
<a name="l00255"></a>00255 newMethod->ml_flags = flags;
<a name="l00256"></a>00256 newMethod->ml_doc = leakingDoc->c_str();
<a name="l00257"></a>00257
<a name="l00258"></a>00258 <span class="comment">// Lock the interpreter</span>
<a name="l00259"></a>00259 <span class="keywordflow">if</span> (lock)
<a name="l00260"></a>00260 {
<a name="l00261"></a>00261 PyThreadState *myThreadState = PyGILState_GetThisThreadState();
<a name="l00262"></a>00262 <span class="keywordflow">if</span> (!Py_IsInitialized() || !myThreadState)
<a name="l00263"></a>00263 <span class="keywordflow">throw</span> <a class="code" href="a00162.html" title="An exception of this type is thrown when the library runs into problems that are...">RuntimeException</a>(<span class="stringliteral">"Python isn't initialized correctly"</span>);
<a name="l00264"></a>00264 PyEval_RestoreThread(myThreadState);
<a name="l00265"></a>00265 }
<a name="l00266"></a>00266
<a name="l00267"></a>00267 <span class="comment">// Register a new C function in Python</span>
<a name="l00268"></a>00268 PyObject* mod = PyString_FromString(<span class="stringliteral">"frepple"</span>);
<a name="l00269"></a>00269 <span class="keywordflow">if</span> (!mod)
<a name="l00270"></a>00270 {
<a name="l00271"></a>00271 <span class="keywordflow">if</span> (lock) PyEval_ReleaseLock();
<a name="l00272"></a>00272 <span class="keywordflow">throw</span> <a class="code" href="a00162.html" title="An exception of this type is thrown when the library runs into problems that are...">RuntimeException</a>(<span class="stringliteral">"Error registering a new Python method"</span>);
<a name="l00273"></a>00273 }
<a name="l00274"></a>00274 PyObject* func = PyCFunction_NewEx(newMethod, NULL, mod);
<a name="l00275"></a>00275 Py_DECREF(mod);
<a name="l00276"></a>00276 <span class="keywordflow">if</span> (!func)
<a name="l00277"></a>00277 {
<a name="l00278"></a>00278 <span class="keywordflow">if</span> (lock) PyEval_ReleaseLock();
<a name="l00279"></a>00279 <span class="keywordflow">throw</span> <a class="code" href="a00162.html" title="An exception of this type is thrown when the library runs into problems that are...">RuntimeException</a>(<span class="stringliteral">"Error registering a new Python method"</span>);
<a name="l00280"></a>00280 }
<a name="l00281"></a>00281
<a name="l00282"></a>00282 <span class="comment">// Add the method to the module dictionary</span>
<a name="l00283"></a>00283 PyObject* moduledict = PyModule_GetDict(module);
<a name="l00284"></a>00284 <span class="keywordflow">if</span> (!moduledict)
<a name="l00285"></a>00285 {
<a name="l00286"></a>00286 Py_DECREF(func);
<a name="l00287"></a>00287 <span class="keywordflow">if</span> (lock) PyEval_ReleaseLock();
<a name="l00288"></a>00288 <span class="keywordflow">throw</span> <a class="code" href="a00162.html" title="An exception of this type is thrown when the library runs into problems that are...">RuntimeException</a>(<span class="stringliteral">"Error registering a new Python method"</span>);
<a name="l00289"></a>00289 }
<a name="l00290"></a>00290 <span class="keywordflow">if</span> (PyDict_SetItemString(moduledict ,leakingName->c_str(), func) < 0)
<a name="l00291"></a>00291 {
<a name="l00292"></a>00292 Py_DECREF(func);
<a name="l00293"></a>00293 <span class="keywordflow">if</span> (lock) PyEval_ReleaseLock();
<a name="l00294"></a>00294 <span class="keywordflow">throw</span> <a class="code" href="a00162.html" title="An exception of this type is thrown when the library runs into problems that are...">RuntimeException</a>(<span class="stringliteral">"Error registering a new Python method"</span>);
<a name="l00295"></a>00295 }
<a name="l00296"></a>00296 Py_DECREF(func);
<a name="l00297"></a>00297
<a name="l00298"></a>00298 <span class="comment">// Release the interpeter</span>
<a name="l00299"></a>00299 <span class="keywordflow">if</span> (lock) PyEval_ReleaseLock();
<a name="l00300"></a>00300 }
<a name="l00301"></a>00301
<a name="l00302"></a>00302
<a name="l00303"></a>00303 <a class="code" href="a00252.html#a99b94ab8c2f2a32277559c7b2b0a054c">DECLARE_EXPORT</a> <span class="keywordtype">void</span> <a class="code" href="a00153.html#a3d9447646d6d4b6e9ab323425e731712">PythonInterpreter::registerGlobalMethod</a>
<a name="l00304"></a><a class="code" href="a00153.html#a834f86afd4a72a3bf5401894c92bddb4">00304</a> (<span class="keyword">const</span> <span class="keywordtype">char</span>* c, PyCFunctionWithKeywords f, <span class="keywordtype">int</span> i, <span class="keyword">const</span> <span class="keywordtype">char</span>* d)
<a name="l00305"></a>00305 {
<a name="l00306"></a>00306 registerGlobalMethod(c, reinterpret_cast<PyCFunction>(f), i | METH_KEYWORDS, d);
<a name="l00307"></a>00307 }
<a name="l00308"></a>00308
<a name="l00309"></a>00309
<a name="l00310"></a>00310 PyObject* PythonInterpreter::python_log(PyObject *<span class="keyword">self</span>, PyObject *args)
<a name="l00311"></a>00311 {
<a name="l00312"></a>00312 <span class="comment">// Pick up arguments</span>
<a name="l00313"></a>00313 <span class="keywordtype">char</span> *data;
<a name="l00314"></a>00314 <span class="keywordtype">int</span> ok = PyArg_ParseTuple(args, <span class="stringliteral">"s:log"</span>, &data);
<a name="l00315"></a>00315 <span class="keywordflow">if</span> (!ok) <span class="keywordflow">return</span> NULL;
<a name="l00316"></a>00316
<a name="l00317"></a>00317 <span class="comment">// Print and flush the output stream</span>
<a name="l00318"></a>00318 <a class="code" href="a00257.html#a4af9f241e955122820c5e81ceb33edb5">logger</a> << data;
<a name="l00319"></a>00319 <a class="code" href="a00257.html#a4af9f241e955122820c5e81ceb33edb5">logger</a>.flush();
<a name="l00320"></a>00320
<a name="l00321"></a>00321 <span class="comment">// Return code</span>
<a name="l00322"></a>00322 <span class="keywordflow">return</span> Py_BuildValue(<span class="stringliteral">""</span>); <span class="comment">// Safer than using Py_None, which is not</span>
<a name="l00323"></a>00323 <span class="comment">// portable across compilers</span>
<a name="l00324"></a>00324 }
<a name="l00325"></a>00325
<a name="l00326"></a>00326
<a name="l00327"></a>00327 <span class="keyword">const</span> PyTypeObject PythonType::PyTypeObjectTemplate =
<a name="l00328"></a>00328 {
<a name="l00329"></a>00329 PyObject_HEAD_INIT(NULL)
<a name="l00330"></a>00330 0, <span class="comment">/* ob_size */</span>
<a name="l00331"></a>00331 <span class="stringliteral">"frepple.unspecified"</span>, <span class="comment">/* WILL BE UPDATED tp_name */</span>
<a name="l00332"></a>00332 0, <span class="comment">/* WILL BE UPDATED tp_basicsize */</span>
<a name="l00333"></a>00333 0, <span class="comment">/* tp_itemsize */</span>
<a name="l00334"></a>00334 0, <span class="comment">/* CAN BE UPDATED tp_dealloc */</span>
<a name="l00335"></a>00335 0, <span class="comment">/* tp_print */</span>
<a name="l00336"></a>00336 0, <span class="comment">/* tp_getattr */</span>
<a name="l00337"></a>00337 0, <span class="comment">/* tp_setattr */</span>
<a name="l00338"></a>00338 0, <span class="comment">/* tp_compare */</span>
<a name="l00339"></a>00339 0, <span class="comment">/* tp_repr */</span>
<a name="l00340"></a>00340 0, <span class="comment">/* tp_as_number */</span>
<a name="l00341"></a>00341 0, <span class="comment">/* tp_as_sequence */</span>
<a name="l00342"></a>00342 0, <span class="comment">/* tp_as_mapping */</span>
<a name="l00343"></a>00343 0, <span class="comment">/* tp_hash */</span>
<a name="l00344"></a>00344 0, <span class="comment">/* CAN BE UPDATED tp_call */</span>
<a name="l00345"></a>00345 0, <span class="comment">/* CAN BE UPDATED tp_str */</span>
<a name="l00346"></a>00346 0, <span class="comment">/* CAN BE UPDATED tp_getattro */</span>
<a name="l00347"></a>00347 0, <span class="comment">/* CAN BE UPDATED tp_setattro */</span>
<a name="l00348"></a>00348 0, <span class="comment">/* tp_as_buffer */</span>
<a name="l00349"></a>00349 Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, <span class="comment">/* tp_flags */</span>
<a name="l00350"></a>00350 <span class="stringliteral">"std doc"</span>, <span class="comment">/* CAN BE UPDATED tp_doc */</span>
<a name="l00351"></a>00351 0, <span class="comment">/* tp_traverse */</span>
<a name="l00352"></a>00352 0, <span class="comment">/* tp_clear */</span>
<a name="l00353"></a>00353 0, <span class="comment">/* tp_richcompare */</span>
<a name="l00354"></a>00354 0, <span class="comment">/* tp_weaklistoffset */</span>
<a name="l00355"></a>00355 0, <span class="comment">/* CAN BE UPDATED tp_iter */</span>
<a name="l00356"></a>00356 0, <span class="comment">/* CAN BE UPDATED tp_iternext */</span>
<a name="l00357"></a>00357 0, <span class="comment">/* tp_methods */</span>
<a name="l00358"></a>00358 0, <span class="comment">/* tp_members */</span>
<a name="l00359"></a>00359 0, <span class="comment">/* tp_getset */</span>
<a name="l00360"></a>00360 0, <span class="comment">/* tp_base */</span>
<a name="l00361"></a>00361 0, <span class="comment">/* tp_dict */</span>
<a name="l00362"></a>00362 0, <span class="comment">/* tp_descr_get */</span>
<a name="l00363"></a>00363 0, <span class="comment">/* tp_descr_set */</span>
<a name="l00364"></a>00364 0, <span class="comment">/* tp_dictoffset */</span>
<a name="l00365"></a>00365 0, <span class="comment">/* tp_init */</span>
<a name="l00366"></a>00366 0, <span class="comment">/* tp_alloc */</span>
<a name="l00367"></a>00367 0, <span class="comment">/* CAN BE UPDATED tp_new */</span>
<a name="l00368"></a>00368 0, <span class="comment">/* tp_free */</span>
<a name="l00369"></a>00369 };
<a name="l00370"></a>00370
<a name="l00371"></a>00371
<a name="l00372"></a><a class="code" href="a00154.html#ae38fbdc666575d4a993b54fad78ea0ce">00372</a> <a class="code" href="a00252.html#a99b94ab8c2f2a32277559c7b2b0a054c">DECLARE_EXPORT</a> <a class="code" href="a00154.html#a7f228cd4812a5a47cef913fe964a3bfd">PythonObject::PythonObject</a>(<span class="keyword">const</span> <a class="code" href="a00049.html" title="This class represents a date and time with an accuracy of one second.">Date</a>& d)
<a name="l00373"></a>00373 {
<a name="l00374"></a>00374 PyDateTime_IMPORT;
<a name="l00375"></a>00375 <span class="comment">// The standard library function localtime() is not re-entrant: the same</span>
<a name="l00376"></a>00376 <span class="comment">// static structure is used for all calls. In a multi-threaded environment</span>
<a name="l00377"></a>00377 <span class="comment">// the function is not to be used.</span>
<a name="l00378"></a>00378 <span class="comment">// The POSIX standard defines a re-entrant version of the function:</span>
<a name="l00379"></a>00379 <span class="comment">// localtime_r.</span>
<a name="l00380"></a>00380 <span class="comment">// Visual C++ 6.0 and Borland 5.5 are missing it, but provide a thread-safe</span>
<a name="l00381"></a>00381 <span class="comment">// variant without changing the function semantics.</span>
<a name="l00382"></a>00382 time_t ticks = d.<a class="code" href="a00049.html#ad47644c16f9e9740192f6de3c0e582a5">getTicks</a>();
<a name="l00383"></a>00383 <span class="preprocessor">#ifdef HAVE_LOCALTIME_R</span>
<a name="l00384"></a>00384 <span class="preprocessor"></span> <span class="keyword">struct </span>tm t;
<a name="l00385"></a>00385 localtime_r(&ticks, &t);
<a name="l00386"></a>00386 <span class="preprocessor">#else</span>
<a name="l00387"></a>00387 <span class="preprocessor"></span> <span class="keyword">struct </span>tm t = *localtime(&ticks);
<a name="l00388"></a>00388 <span class="preprocessor">#endif</span>
<a name="l00389"></a>00389 <span class="preprocessor"></span> obj = PyDateTime_FromDateAndTime(t.tm_year+1900, t.tm_mon+1, t.tm_mday,
<a name="l00390"></a>00390 t.tm_hour, t.tm_min, t.tm_sec, 0);
<a name="l00391"></a>00391 }
<a name="l00392"></a>00392
<a name="l00393"></a>00393
<a name="l00394"></a><a class="code" href="a00154.html#aa72c83cab5f89f71aff63f0bfad26bd1">00394</a> <a class="code" href="a00252.html#a99b94ab8c2f2a32277559c7b2b0a054c">DECLARE_EXPORT</a> <a class="code" href="a00049.html" title="This class represents a date and time with an accuracy of one second.">Date</a> <a class="code" href="a00154.html#aa72c83cab5f89f71aff63f0bfad26bd1">PythonObject::getDate</a>()<span class="keyword"> const</span>
<a name="l00395"></a>00395 <span class="keyword"></span>{
<a name="l00396"></a>00396 PyDateTime_IMPORT;
<a name="l00397"></a>00397 <span class="keywordflow">if</span> (PyDateTime_Check(obj))
<a name="l00398"></a>00398 <span class="keywordflow">return</span> <a class="code" href="a00049.html" title="This class represents a date and time with an accuracy of one second.">Date</a>(
<a name="l00399"></a>00399 PyDateTime_GET_YEAR(obj),
<a name="l00400"></a>00400 PyDateTime_GET_MONTH(obj),
<a name="l00401"></a>00401 PyDateTime_GET_DAY(obj),
<a name="l00402"></a>00402 PyDateTime_DATE_GET_HOUR(obj),
<a name="l00403"></a>00403 PyDateTime_DATE_GET_MINUTE(obj),
<a name="l00404"></a>00404 PyDateTime_DATE_GET_SECOND(obj)
<a name="l00405"></a>00405 );
<a name="l00406"></a>00406 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (PyDate_Check(obj))
<a name="l00407"></a>00407 <span class="keywordflow">return</span> <a class="code" href="a00049.html" title="This class represents a date and time with an accuracy of one second.">Date</a>(
<a name="l00408"></a>00408 PyDateTime_GET_YEAR(obj),
<a name="l00409"></a>00409 PyDateTime_GET_MONTH(obj),
<a name="l00410"></a>00410 PyDateTime_GET_DAY(obj)
<a name="l00411"></a>00411 );
<a name="l00412"></a>00412 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (PyString_Check(obj))
<a name="l00413"></a>00413 {
<a name="l00414"></a>00414 <span class="keywordflow">if</span> (PyUnicode_Check(obj))
<a name="l00415"></a>00415 {
<a name="l00416"></a>00416 <span class="comment">// Replace the unicode object with a string encoded in the correct locale</span>
<a name="l00417"></a>00417 <span class="keyword">const_cast<</span>PyObject*&<span class="keyword">></span>(obj) =
<a name="l00418"></a>00418 PyUnicode_AsEncodedString(obj, <a class="code" href="a00153.html#a37a78f854dccfadaab2dc0c7eebd517d">PythonInterpreter::getPythonEncoding</a>(), <span class="stringliteral">"ignore"</span>);
<a name="l00419"></a>00419 }
<a name="l00420"></a>00420 <span class="keywordflow">return</span> <a class="code" href="a00049.html" title="This class represents a date and time with an accuracy of one second.">Date</a>(PyString_AsString(PyObject_Str(obj)));
<a name="l00421"></a>00421 }
<a name="l00422"></a>00422 <span class="keywordflow">else</span>
<a name="l00423"></a>00423 <span class="keywordflow">throw</span> <a class="code" href="a00048.html" title="An exception of this type is thrown when data errors are found.">DataException</a>(
<a name="l00424"></a>00424 <span class="stringliteral">"Invalid data type. Expecting datetime.date, datetime.datetime or string"</span>
<a name="l00425"></a>00425 );
<a name="l00426"></a>00426 }
<a name="l00427"></a>00427
<a name="l00428"></a>00428
<a name="l00429"></a><a class="code" href="a00154.html#a8ede2f04e7b0fe54cc8f08cca9048355">00429</a> <a class="code" href="a00252.html#a99b94ab8c2f2a32277559c7b2b0a054c">DECLARE_EXPORT</a> <a class="code" href="a00154.html#a7f228cd4812a5a47cef913fe964a3bfd">PythonObject::PythonObject</a>(<a class="code" href="a00120.html" title="Object is the abstract base class for the main entities.">Object</a>* p)
<a name="l00430"></a>00430 {
<a name="l00431"></a>00431 obj = p ? <span class="keyword">static_cast<</span>PyObject*<span class="keyword">></span>(p) : Py_None;
<a name="l00432"></a>00432 Py_INCREF(obj);
<a name="l00433"></a>00433 }
<a name="l00434"></a>00434
<a name="l00435"></a>00435
<a name="l00436"></a><a class="code" href="a00155.html#a310a3ff0e845a0c555d579f29342843f">00436</a> <a class="code" href="a00252.html#a99b94ab8c2f2a32277559c7b2b0a054c">DECLARE_EXPORT</a> <a class="code" href="a00155.html#a310a3ff0e845a0c555d579f29342843f">PythonType::PythonType</a>(<span class="keywordtype">size_t</span> base_size, <span class="keyword">const</span> type_info* tp)
<a name="l00437"></a>00437 : cppClass(tp)
<a name="l00438"></a>00438 {
<a name="l00439"></a>00439 <span class="comment">// Allocate a new type object if it doesn't exist yet.</span>
<a name="l00440"></a>00440 <span class="comment">// We copy from a template type definition.</span>
<a name="l00441"></a>00441 table = <span class="keyword">new</span> PyTypeObject(PyTypeObjectTemplate);
<a name="l00442"></a>00442 table->tp_basicsize = base_size;
<a name="l00443"></a>00443 }
<a name="l00444"></a>00444
<a name="l00445"></a>00445
<a name="l00446"></a><a class="code" href="a00151.html#a052b89b0a21ae6da1a4a8dbeb2a97a6c">00446</a> <a class="code" href="a00252.html#a99b94ab8c2f2a32277559c7b2b0a054c">DECLARE_EXPORT</a> <a class="code" href="a00155.html" title="This class is a thin wrapper around the type information in Python.">PythonType</a>* <a class="code" href="a00151.html#a052b89b0a21ae6da1a4a8dbeb2a97a6c">PythonExtensionBase::registerPythonType</a>(<span class="keywordtype">int</span> size, <span class="keyword">const</span> type_info *t)
<a name="l00447"></a>00447 {
<a name="l00448"></a>00448 <span class="comment">// Scan the types already registered</span>
<a name="l00449"></a>00449 <span class="keywordflow">for</span> (vector<PythonType*>::const_iterator i = <a class="code" href="a00151.html#a67eb776e52371040a3b5eb76683a4760">table</a>.begin(); i != <a class="code" href="a00151.html#a67eb776e52371040a3b5eb76683a4760">table</a>.end(); ++i)
<a name="l00450"></a>00450 <span class="keywordflow">if</span> (**i==*t) <span class="keywordflow">return</span> *i;
<a name="l00451"></a>00451
<a name="l00452"></a>00452 <span class="comment">// Not found in the vector, so create a new one</span>
<a name="l00453"></a>00453 <a class="code" href="a00155.html" title="This class is a thin wrapper around the type information in Python.">PythonType</a> *cachedTypePtr = <span class="keyword">new</span> <a class="code" href="a00155.html" title="This class is a thin wrapper around the type information in Python.">PythonType</a>(size, t);
<a name="l00454"></a>00454 <a class="code" href="a00151.html#a67eb776e52371040a3b5eb76683a4760">table</a>.push_back(cachedTypePtr);
<a name="l00455"></a>00455 <span class="keywordflow">return</span> cachedTypePtr;
<a name="l00456"></a>00456 }
<a name="l00457"></a>00457
<a name="l00458"></a>00458
<a name="l00459"></a><a class="code" href="a00120.html#a936a4ac5b81ba4f9c9cbe54b9aeeda13">00459</a> <a class="code" href="a00252.html#a99b94ab8c2f2a32277559c7b2b0a054c">DECLARE_EXPORT</a> PyObject* <a class="code" href="a00120.html#a936a4ac5b81ba4f9c9cbe54b9aeeda13">Object::toXML</a>(PyObject* <span class="keyword">self</span>, PyObject* args)
<a name="l00460"></a>00460 {
<a name="l00461"></a>00461 <span class="keywordflow">try</span>
<a name="l00462"></a>00462 {
<a name="l00463"></a>00463 <span class="comment">// Parse the argument</span>
<a name="l00464"></a>00464 PyObject *filearg = NULL;
<a name="l00465"></a>00465 <span class="keywordflow">if</span> (PyArg_UnpackTuple(args, <span class="stringliteral">"toXML"</span>, 0, 1, &filearg))
<a name="l00466"></a>00466 {
<a name="l00467"></a>00467 ostringstream ch;
<a name="l00468"></a>00468 <a class="code" href="a00189.html" title="Base class for writing XML formatted data to an output stream.">XMLOutput</a> x(ch);
<a name="l00469"></a>00469 <span class="comment">// Create the XML string.</span>
<a name="l00470"></a>00470 <span class="comment">// The next call only works if the self argument is effectively an</span>
<a name="l00471"></a>00471 <span class="comment">// instance of the Object base class! We don't check this.</span>
<a name="l00472"></a>00472 <span class="keyword">static_cast<</span><a class="code" href="a00120.html" title="Object is the abstract base class for the main entities.">Object</a>*<span class="keyword">></span>(<span class="keyword">self</span>)-><a class="code" href="a00120.html#a324e43c334cb519909fcbdad0f8cbd82">writeElement</a>
<a name="l00473"></a>00473 (&x, *(static_cast<Object*>(<span class="keyword">self</span>)-><a class="code" href="a00120.html#a2e5ff5e5d9c32647f692abd04a0d72d2">getType</a>().category-><a class="code" href="a00115.html#aace20f59ef5a9de3188cb9810398932b">typetag</a>));
<a name="l00474"></a>00474 <span class="comment">// Write the output...</span>
<a name="l00475"></a>00475 <span class="keywordflow">if</span> (filearg)
<a name="l00476"></a>00476 {
<a name="l00477"></a>00477 <span class="keywordflow">if</span> (PyFile_Check(filearg))
<a name="l00478"></a>00478 {
<a name="l00479"></a>00479 <span class="comment">// ... to a file</span>
<a name="l00480"></a>00480 <span class="keywordflow">return</span> PyFile_WriteString(ch.str().c_str(), filearg) ?
<a name="l00481"></a>00481 NULL : <span class="comment">// Error writing to the file</span>
<a name="l00482"></a>00482 Py_BuildValue(<span class="stringliteral">""</span>);
<a name="l00483"></a>00483 }
<a name="l00484"></a>00484 <span class="keywordflow">else</span>
<a name="l00485"></a>00485 <span class="comment">// The argument is not a file</span>
<a name="l00486"></a>00486 <span class="keywordflow">throw</span> <a class="code" href="a00111.html" title="An exception of this type is thrown when the library gets in an inconsistent state...">LogicException</a>(<span class="stringliteral">"Expecting a file argument"</span>);
<a name="l00487"></a>00487 }
<a name="l00488"></a>00488 <span class="keywordflow">else</span>
<a name="l00489"></a>00489 <span class="comment">// ... to a string</span>
<a name="l00490"></a>00490 <span class="keywordflow">return</span> <a class="code" href="a00154.html" title="This class handles two-way translation between the data types in C++ and Python.">PythonObject</a>(ch.str());
<a name="l00491"></a>00491 }
<a name="l00492"></a>00492 }
<a name="l00493"></a>00493 <span class="keywordflow">catch</span>(...)
<a name="l00494"></a>00494 {
<a name="l00495"></a>00495 <a class="code" href="a00155.html#abf914311a885c679e6985f6fc1771c0a">PythonType::evalException</a>();
<a name="l00496"></a>00496 <span class="keywordflow">return</span> NULL;
<a name="l00497"></a>00497 }
<a name="l00498"></a>00498 <span class="keywordflow">throw</span> <a class="code" href="a00111.html" title="An exception of this type is thrown when the library gets in an inconsistent state...">LogicException</a>(<span class="stringliteral">"Unreachable code reached"</span>);
<a name="l00499"></a>00499 }
<a name="l00500"></a>00500
<a name="l00501"></a>00501
<a name="l00502"></a>00502 <a class="code" href="a00252.html#a99b94ab8c2f2a32277559c7b2b0a054c">DECLARE_EXPORT</a> <span class="keywordtype">void</span> <a class="code" href="a00155.html#ab5950f891179f3ae7d31f4977580cb1d">PythonType::addMethod</a>
<a name="l00503"></a><a class="code" href="a00155.html#ab5950f891179f3ae7d31f4977580cb1d">00503</a> (<span class="keyword">const</span> <span class="keywordtype">char</span>* method_name, PyCFunction f, <span class="keywordtype">int</span> flags, <span class="keyword">const</span> <span class="keywordtype">char</span>* doc )
<a name="l00504"></a>00504 {
<a name="l00505"></a>00505 <span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> i = 0;
<a name="l00506"></a>00506
<a name="l00507"></a>00507 <span class="comment">// Create a method table array</span>
<a name="l00508"></a>00508 <span class="keywordflow">if</span> (!table->tp_methods)
<a name="l00509"></a>00509 <span class="comment">// Allocate a first block</span>
<a name="l00510"></a>00510 table->tp_methods = <span class="keyword">new</span> PyMethodDef[methodArraySize];
<a name="l00511"></a>00511 <span class="keywordflow">else</span>
<a name="l00512"></a>00512 {
<a name="l00513"></a>00513 <span class="comment">// Find the first non-empty method record</span>
<a name="l00514"></a>00514 <span class="keywordflow">while</span> (table->tp_methods[i].ml_name) i++;
<a name="l00515"></a>00515 <span class="keywordflow">if</span> (i % methodArraySize == methodArraySize - 1)
<a name="l00516"></a>00516 {
<a name="l00517"></a>00517 <span class="comment">// Allocation of a bigger buffer is required</span>
<a name="l00518"></a>00518 PyMethodDef* tmp = <span class="keyword">new</span> PyMethodDef[i + 1 + methodArraySize];
<a name="l00519"></a>00519 <span class="keywordflow">for</span>(<span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> j = 0; j < i; j++)
<a name="l00520"></a>00520 tmp[j] = table->tp_methods[j];
<a name="l00521"></a>00521 <span class="keyword">delete</span> [] table->tp_methods;
<a name="l00522"></a>00522 table->tp_methods = tmp;
<a name="l00523"></a>00523 }
<a name="l00524"></a>00524 }
<a name="l00525"></a>00525
<a name="l00526"></a>00526 <span class="comment">// Populate a method definition struct</span>
<a name="l00527"></a>00527 table->tp_methods[i].ml_name = method_name;
<a name="l00528"></a>00528 table->tp_methods[i].ml_meth = f;
<a name="l00529"></a>00529 table->tp_methods[i].ml_flags = flags;
<a name="l00530"></a>00530 table->tp_methods[i].ml_doc = doc;
<a name="l00531"></a>00531
<a name="l00532"></a>00532 <span class="comment">// Append an empty terminator record</span>
<a name="l00533"></a>00533 table->tp_methods[++i].ml_name = NULL;
<a name="l00534"></a>00534 table->tp_methods[i].ml_meth = NULL;
<a name="l00535"></a>00535 table->tp_methods[i].ml_flags = 0;
<a name="l00536"></a>00536 table->tp_methods[i].ml_doc = NULL;
<a name="l00537"></a>00537 }
<a name="l00538"></a>00538
<a name="l00539"></a>00539
<a name="l00540"></a>00540 <a class="code" href="a00252.html#a99b94ab8c2f2a32277559c7b2b0a054c">DECLARE_EXPORT</a> <span class="keywordtype">void</span> <a class="code" href="a00155.html#ab5950f891179f3ae7d31f4977580cb1d">PythonType::addMethod</a>
<a name="l00541"></a><a class="code" href="a00155.html#a7fc4c71d906fb7627b8c3e2a10e9f8dc">00541</a> (<span class="keyword">const</span> <span class="keywordtype">char</span>* c, PyCFunctionWithKeywords f, <span class="keywordtype">int</span> i, <span class="keyword">const</span> <span class="keywordtype">char</span>* d)
<a name="l00542"></a>00542 {
<a name="l00543"></a>00543 addMethod(c, reinterpret_cast<PyCFunction>(f), i | METH_KEYWORDS, d);
<a name="l00544"></a>00544 }
<a name="l00545"></a>00545
<a name="l00546"></a>00546
<a name="l00547"></a><a class="code" href="a00155.html#a5b2be5d75982b077b2d694c269d43778">00547</a> <a class="code" href="a00252.html#a99b94ab8c2f2a32277559c7b2b0a054c">DECLARE_EXPORT</a> <span class="keywordtype">int</span> <a class="code" href="a00155.html#a5b2be5d75982b077b2d694c269d43778">PythonType::typeReady</a>()
<a name="l00548"></a>00548 {
<a name="l00549"></a>00549 <span class="comment">// Register the new type in the module</span>
<a name="l00550"></a>00550 <span class="keywordflow">if</span> (PyType_Ready(table) < 0)
<a name="l00551"></a>00551 <span class="keywordflow">throw</span> <a class="code" href="a00162.html" title="An exception of this type is thrown when the library runs into problems that are...">RuntimeException</a>(<span class="keywordtype">string</span>(<span class="stringliteral">"Can't register python type "</span>) + table->tp_name);
<a name="l00552"></a>00552 Py_INCREF(table);
<a name="l00553"></a>00553 <span class="keywordflow">return</span> PyModule_AddObject(
<a name="l00554"></a>00554 <a class="code" href="a00153.html#a861434d2219b3240ac16b1007eedcc56">PythonInterpreter::getModule</a>(),
<a name="l00555"></a>00555 table->tp_name + 8, <span class="comment">// Note: +8 is to skip the "frepple." characters in the name</span>
<a name="l00556"></a>00556 reinterpret_cast<PyObject*>(table)
<a name="l00557"></a>00557 );
<a name="l00558"></a>00558 }
<a name="l00559"></a>00559
<a name="l00560"></a>00560
<a name="l00561"></a><a class="code" href="a00155.html#abf914311a885c679e6985f6fc1771c0a">00561</a> <a class="code" href="a00252.html#a99b94ab8c2f2a32277559c7b2b0a054c">DECLARE_EXPORT</a> <span class="keywordtype">void</span> <a class="code" href="a00155.html#abf914311a885c679e6985f6fc1771c0a">PythonType::evalException</a>()
<a name="l00562"></a>00562 {
<a name="l00563"></a>00563 <span class="comment">// Rethrowing the exception to catch its type better</span>
<a name="l00564"></a>00564 <span class="keywordflow">try</span> {<span class="keywordflow">throw</span>;}
<a name="l00565"></a>00565 <span class="keywordflow">catch</span> (<a class="code" href="a00048.html" title="An exception of this type is thrown when data errors are found.">DataException</a> e)
<a name="l00566"></a>00566 {PyErr_SetString(<a class="code" href="a00257.html#a75c689d2dca4282e2ca0dad79dab1063" title="Python exception class matching with frepple::DataException.">PythonDataException</a>, e.what());}
<a name="l00567"></a>00567 <span class="keywordflow">catch</span> (<a class="code" href="a00111.html" title="An exception of this type is thrown when the library gets in an inconsistent state...">LogicException</a> e)
<a name="l00568"></a>00568 {PyErr_SetString(<a class="code" href="a00257.html#a5e53a387c0e6c65a18ee76396f03d1d0" title="Python exception class matching with frepple::LogicException.">PythonLogicException</a>, e.what());}
<a name="l00569"></a>00569 <span class="keywordflow">catch</span> (<a class="code" href="a00162.html" title="An exception of this type is thrown when the library runs into problems that are...">RuntimeException</a> e)
<a name="l00570"></a>00570 {PyErr_SetString(<a class="code" href="a00257.html#ad7d6854c478a3b4c454bb0b6913e1dc6" title="Python exception class matching with frepple::RuntimeException.">PythonRuntimeException</a>, e.what());}
<a name="l00571"></a>00571 <span class="keywordflow">catch</span> (exception e)
<a name="l00572"></a>00572 {PyErr_SetString(PyExc_Exception, e.what());}
<a name="l00573"></a>00573 <span class="keywordflow">catch</span> (...)
<a name="l00574"></a>00574 {PyErr_SetString(PyExc_Exception, <span class="stringliteral">"Unidentified exception"</span>);}
<a name="l00575"></a>00575 }
<a name="l00576"></a>00576
<a name="l00577"></a>00577
<a name="l00578"></a><a class="code" href="a00152.html#a10000c1a4ab56fae9b7639c2bfe6318a">00578</a> <a class="code" href="a00252.html#a99b94ab8c2f2a32277559c7b2b0a054c">DECLARE_EXPORT</a> <a class="code" href="a00152.html#a178f0b503fd228cc6ec0540d84c557d1">PythonFunction::PythonFunction</a>(<span class="keyword">const</span> <span class="keywordtype">string</span>& n)
<a name="l00579"></a>00579 {
<a name="l00580"></a>00580 <span class="keywordflow">if</span> (n.empty())
<a name="l00581"></a>00581 {
<a name="l00582"></a>00582 <span class="comment">// Resetting to NULL when the string is empty</span>
<a name="l00583"></a>00583 func = NULL;
<a name="l00584"></a>00584 <span class="keywordflow">return</span>;
<a name="l00585"></a>00585 }
<a name="l00586"></a>00586
<a name="l00587"></a>00587 <span class="comment">// Find the Python function</span>
<a name="l00588"></a>00588 PyGILState_STATE pythonstate = PyGILState_Ensure();
<a name="l00589"></a>00589 func = PyRun_String(n.c_str(), Py_eval_input,
<a name="l00590"></a>00590 PyEval_GetGlobals(), PyEval_GetLocals() );
<a name="l00591"></a>00591 <span class="keywordflow">if</span> (!func)
<a name="l00592"></a>00592 {
<a name="l00593"></a>00593 PyGILState_Release(pythonstate);
<a name="l00594"></a>00594 <span class="keywordflow">throw</span> <a class="code" href="a00048.html" title="An exception of this type is thrown when data errors are found.">DataException</a>(<span class="stringliteral">"Python function '"</span> + n + <span class="stringliteral">"' not defined"</span>);
<a name="l00595"></a>00595 }
<a name="l00596"></a>00596 <span class="keywordflow">if</span> (!PyCallable_Check(func))
<a name="l00597"></a>00597 {
<a name="l00598"></a>00598 PyGILState_Release(pythonstate);
<a name="l00599"></a>00599 <span class="keywordflow">throw</span> <a class="code" href="a00048.html" title="An exception of this type is thrown when data errors are found.">DataException</a>(<span class="stringliteral">"Python object '"</span> + n + <span class="stringliteral">"' is not a function"</span>);
<a name="l00600"></a>00600 }
<a name="l00601"></a>00601 Py_INCREF(func);
<a name="l00602"></a>00602
<a name="l00603"></a>00603 <span class="comment">// Store the Python function</span>
<a name="l00604"></a>00604 PyGILState_Release(pythonstate);
<a name="l00605"></a>00605 }
<a name="l00606"></a>00606
<a name="l00607"></a>00607
<a name="l00608"></a><a class="code" href="a00152.html#ac974e9387de178b97c287277c5999669">00608</a> <a class="code" href="a00252.html#a99b94ab8c2f2a32277559c7b2b0a054c">DECLARE_EXPORT</a> <a class="code" href="a00152.html#a178f0b503fd228cc6ec0540d84c557d1">PythonFunction::PythonFunction</a>(PyObject* p)
<a name="l00609"></a>00609 {
<a name="l00610"></a>00610 <span class="keywordflow">if</span> (!p || p == Py_None)
<a name="l00611"></a>00611 {
<a name="l00612"></a>00612 <span class="comment">// Resetting to null</span>
<a name="l00613"></a>00613 func = NULL;
<a name="l00614"></a>00614 <span class="keywordflow">return</span>;
<a name="l00615"></a>00615 }
<a name="l00616"></a>00616
<a name="l00617"></a>00617 <span class="keywordflow">if</span> (!PyCallable_Check(p))
<a name="l00618"></a>00618 {
<a name="l00619"></a>00619 <span class="comment">// It's not a callable object. Interprete it as a function name and </span>
<a name="l00620"></a>00620 <span class="comment">// look it up.</span>
<a name="l00621"></a>00621 <span class="keywordtype">string</span> n = <a class="code" href="a00154.html#a7f228cd4812a5a47cef913fe964a3bfd">PythonObject</a>(p).getString();
<a name="l00622"></a>00622 PyGILState_STATE pythonstate = PyGILState_Ensure();
<a name="l00623"></a>00623 p = PyRun_String(n.c_str(), Py_eval_input,
<a name="l00624"></a>00624 PyEval_GetGlobals(), PyEval_GetLocals() );
<a name="l00625"></a>00625 <span class="keywordflow">if</span> (!p)
<a name="l00626"></a>00626 {
<a name="l00627"></a>00627 PyGILState_Release(pythonstate);
<a name="l00628"></a>00628 <span class="keywordflow">throw</span> <a class="code" href="a00048.html" title="An exception of this type is thrown when data errors are found.">DataException</a>(<span class="stringliteral">"Python function '"</span> + n + <span class="stringliteral">"' not defined"</span>);
<a name="l00629"></a>00629 }
<a name="l00630"></a>00630 <span class="keywordflow">if</span> (!PyCallable_Check(p))
<a name="l00631"></a>00631 {
<a name="l00632"></a>00632 PyGILState_Release(pythonstate);
<a name="l00633"></a>00633 <span class="keywordflow">throw</span> <a class="code" href="a00048.html" title="An exception of this type is thrown when data errors are found.">DataException</a>(<span class="stringliteral">"Python object '"</span> + n + <span class="stringliteral">"' is not a function"</span>);
<a name="l00634"></a>00634 }
<a name="l00635"></a>00635 PyGILState_Release(pythonstate);
<a name="l00636"></a>00636 }
<a name="l00637"></a>00637
<a name="l00638"></a>00638 <span class="comment">// Store the Python function</span>
<a name="l00639"></a>00639 func = p;
<a name="l00640"></a>00640 Py_INCREF(func);
<a name="l00641"></a>00641 }
<a name="l00642"></a>00642
<a name="l00643"></a>00643
<a name="l00644"></a><a class="code" href="a00152.html#a7f199c39019f133986783dfc6017b640">00644</a> <a class="code" href="a00252.html#a99b94ab8c2f2a32277559c7b2b0a054c">DECLARE_EXPORT</a> <a class="code" href="a00154.html" title="This class handles two-way translation between the data types in C++ and Python.">PythonObject</a> <a class="code" href="a00152.html#a7f199c39019f133986783dfc6017b640">PythonFunction::call</a>()<span class="keyword"> const</span>
<a name="l00645"></a>00645 <span class="keyword"></span>{
<a name="l00646"></a>00646 <span class="keywordflow">if</span> (!func) <span class="keywordflow">return</span> <a class="code" href="a00154.html#a7f228cd4812a5a47cef913fe964a3bfd">PythonObject</a>();
<a name="l00647"></a>00647 PyGILState_STATE pythonstate = PyGILState_Ensure();
<a name="l00648"></a>00648 PyObject* result = PyEval_CallFunction(func, <span class="stringliteral">"()"</span>);
<a name="l00649"></a>00649 <span class="keywordflow">if</span> (!result)
<a name="l00650"></a>00650 {
<a name="l00651"></a>00651 <a class="code" href="a00257.html#a4af9f241e955122820c5e81ceb33edb5">logger</a> << <span class="stringliteral">"Error: Exception caught when calling Python function '"</span>
<a name="l00652"></a>00652 << (func ? PyEval_GetFuncName(func) : <span class="stringliteral">"NULL"</span>) << <span class="stringliteral">"'"</span> << endl;
<a name="l00653"></a>00653 <span class="keywordflow">if</span> (PyErr_Occurred()) PyErr_PrintEx(0);
<a name="l00654"></a>00654 }
<a name="l00655"></a>00655 PyGILState_Release(pythonstate);
<a name="l00656"></a>00656 <span class="keywordflow">return</span> <a class="code" href="a00154.html#a7f228cd4812a5a47cef913fe964a3bfd">PythonObject</a>(result);
<a name="l00657"></a>00657 }
<a name="l00658"></a>00658
<a name="l00659"></a>00659
<a name="l00660"></a><a class="code" href="a00152.html#a7b8d5006f9ad79fa6b77ff72e42e8d24">00660</a> <a class="code" href="a00252.html#a99b94ab8c2f2a32277559c7b2b0a054c">DECLARE_EXPORT</a> <a class="code" href="a00154.html" title="This class handles two-way translation between the data types in C++ and Python.">PythonObject</a> <a class="code" href="a00152.html#a7f199c39019f133986783dfc6017b640">PythonFunction::call</a>(<span class="keyword">const</span> PyObject* p)<span class="keyword"> const</span>
<a name="l00661"></a>00661 <span class="keyword"></span>{
<a name="l00662"></a>00662 <span class="keywordflow">if</span> (!func) <span class="keywordflow">return</span> <a class="code" href="a00154.html#a7f228cd4812a5a47cef913fe964a3bfd">PythonObject</a>();
<a name="l00663"></a>00663 PyGILState_STATE pythonstate = PyGILState_Ensure();
<a name="l00664"></a>00664 PyObject* result = PyEval_CallFunction(func, <span class="stringliteral">"(O)"</span>, p);
<a name="l00665"></a>00665 <span class="keywordflow">if</span> (!result)
<a name="l00666"></a>00666 {
<a name="l00667"></a>00667 <a class="code" href="a00257.html#a4af9f241e955122820c5e81ceb33edb5">logger</a> << <span class="stringliteral">"Error: Exception caught when calling Python function '"</span>
<a name="l00668"></a>00668 << (func ? PyEval_GetFuncName(func) : <span class="stringliteral">"NULL"</span>) << <span class="stringliteral">"'"</span> << endl;
<a name="l00669"></a>00669 <span class="keywordflow">if</span> (PyErr_Occurred()) PyErr_PrintEx(0);
<a name="l00670"></a>00670 }
<a name="l00671"></a>00671 PyGILState_Release(pythonstate);
<a name="l00672"></a>00672 <span class="keywordflow">return</span> <a class="code" href="a00154.html#a7f228cd4812a5a47cef913fe964a3bfd">PythonObject</a>(result);
<a name="l00673"></a>00673 }
<a name="l00674"></a>00674
<a name="l00675"></a>00675
<a name="l00676"></a><a class="code" href="a00152.html#a6af5206c52b7d44d5f451b0162040868">00676</a> <a class="code" href="a00252.html#a99b94ab8c2f2a32277559c7b2b0a054c">DECLARE_EXPORT</a> <a class="code" href="a00154.html" title="This class handles two-way translation between the data types in C++ and Python.">PythonObject</a> <a class="code" href="a00152.html#a7f199c39019f133986783dfc6017b640">PythonFunction::call</a>(<span class="keyword">const</span> PyObject* p, <span class="keyword">const</span> PyObject* q)<span class="keyword"> const</span>
<a name="l00677"></a>00677 <span class="keyword"></span>{
<a name="l00678"></a>00678 <span class="keywordflow">if</span> (!func) <span class="keywordflow">return</span> <a class="code" href="a00154.html#a7f228cd4812a5a47cef913fe964a3bfd">PythonObject</a>();
<a name="l00679"></a>00679 PyGILState_STATE pythonstate = PyGILState_Ensure();
<a name="l00680"></a>00680 PyObject* result = PyEval_CallFunction(func, <span class="stringliteral">"(OO)"</span>, p, q);
<a name="l00681"></a>00681 <span class="keywordflow">if</span> (!result)
<a name="l00682"></a>00682 {
<a name="l00683"></a>00683 <a class="code" href="a00257.html#a4af9f241e955122820c5e81ceb33edb5">logger</a> << <span class="stringliteral">"Error: Exception caught when calling Python function '"</span>
<a name="l00684"></a>00684 << (func ? PyEval_GetFuncName(func) : <span class="stringliteral">"NULL"</span>) << <span class="stringliteral">"'"</span> << endl;
<a name="l00685"></a>00685 <span class="keywordflow">if</span> (PyErr_Occurred()) PyErr_PrintEx(0);
<a name="l00686"></a>00686 }
<a name="l00687"></a>00687 PyGILState_Release(pythonstate);
<a name="l00688"></a>00688 <span class="keywordflow">return</span> <a class="code" href="a00154.html#a7f228cd4812a5a47cef913fe964a3bfd">PythonObject</a>(result);
<a name="l00689"></a>00689 }
<a name="l00690"></a>00690
<a name="l00691"></a>00691
<a name="l00692"></a>00692 <span class="keyword">extern</span> <span class="stringliteral">"C"</span> <a class="code" href="a00252.html#a99b94ab8c2f2a32277559c7b2b0a054c">DECLARE_EXPORT</a> PyObject* <a class="code" href="a00257.html#a606ff96836397c238a39f3281ed28045">getattro_handler</a>(PyObject *<span class="keyword">self</span>, PyObject *name)
<a name="l00693"></a>00693 {
<a name="l00694"></a>00694 <span class="keywordflow">try</span>
<a name="l00695"></a>00695 {
<a name="l00696"></a>00696 <span class="keywordflow">if</span> (!PyString_Check(name))
<a name="l00697"></a>00697 {
<a name="l00698"></a>00698 PyErr_Format(PyExc_TypeError,
<a name="l00699"></a>00699 <span class="stringliteral">"attribute name must be string, not '%s'"</span>,
<a name="l00700"></a>00700 name->ob_type->tp_name);
<a name="l00701"></a>00701 <span class="keywordflow">return</span> NULL;
<a name="l00702"></a>00702 }
<a name="l00703"></a>00703 PyObject* result = <span class="keyword">static_cast<</span>PythonExtensionBase*<span class="keyword">></span>(<span class="keyword">self</span>)->getattro(Attribute(PyString_AsString(name)));
<a name="l00704"></a>00704 <span class="comment">// Exit 1: Normal</span>
<a name="l00705"></a>00705 <span class="keywordflow">if</span> (result) <span class="keywordflow">return</span> result;
<a name="l00706"></a>00706 <span class="comment">// Exit 2: Exception occurred</span>
<a name="l00707"></a>00707 <span class="keywordflow">if</span> (PyErr_Occurred()) <span class="keywordflow">return</span> NULL;
<a name="l00708"></a>00708 <span class="comment">// Exit 3: No error occurred but the attribute was not found.</span>
<a name="l00709"></a>00709 <span class="comment">// Use the standard generic function to pick up standard attributes</span>
<a name="l00710"></a>00710 <span class="comment">// (such as __class__, __doc__, ...)</span>
<a name="l00711"></a>00711 <span class="comment">// Note that this function also picks up attributes from base classes, but</span>
<a name="l00712"></a>00712 <span class="comment">// we can't rely on that: any C++ exceptions are lost along the way...</span>
<a name="l00713"></a>00713 <span class="keywordflow">return</span> PyObject_GenericGetAttr(<span class="keyword">self</span>,name);
<a name="l00714"></a>00714 }
<a name="l00715"></a>00715 <span class="keywordflow">catch</span> (...)
<a name="l00716"></a>00716 {
<a name="l00717"></a>00717 <a class="code" href="a00155.html#abf914311a885c679e6985f6fc1771c0a">PythonType::evalException</a>();
<a name="l00718"></a>00718 <span class="keywordflow">return</span> NULL;
<a name="l00719"></a>00719 }
<a name="l00720"></a>00720 }
<a name="l00721"></a>00721
<a name="l00722"></a>00722
<a name="l00723"></a>00723 <span class="keyword">extern</span> <span class="stringliteral">"C"</span> <a class="code" href="a00252.html#a99b94ab8c2f2a32277559c7b2b0a054c">DECLARE_EXPORT</a> <span class="keywordtype">int</span> <a class="code" href="a00257.html#af7b56b985181f3fd7db6d5b17aa81355">setattro_handler</a>(PyObject *<span class="keyword">self</span>, PyObject *name, PyObject *value)
<a name="l00724"></a>00724 {
<a name="l00725"></a>00725 <span class="keywordflow">try</span>
<a name="l00726"></a>00726 {
<a name="l00727"></a>00727 <span class="comment">// Pick up the field name</span>
<a name="l00728"></a>00728 <span class="keywordflow">if</span> (!PyString_Check(name))
<a name="l00729"></a>00729 {
<a name="l00730"></a>00730 PyErr_Format(PyExc_TypeError,
<a name="l00731"></a>00731 <span class="stringliteral">"attribute name must be string, not '%s'"</span>,
<a name="l00732"></a>00732 name->ob_type->tp_name);
<a name="l00733"></a>00733 <span class="keywordflow">return</span> -1;
<a name="l00734"></a>00734 }
<a name="l00735"></a>00735 PythonObject field(value);
<a name="l00736"></a>00736
<a name="l00737"></a>00737 <span class="comment">// Call the object to update the attribute</span>
<a name="l00738"></a>00738 <span class="keywordtype">int</span> result = <span class="keyword">static_cast<</span>PythonExtensionBase*<span class="keyword">></span>(<span class="keyword">self</span>)->setattro(Attribute(PyString_AsString(name)), field);
<a name="l00739"></a>00739
<a name="l00740"></a>00740 <span class="comment">// Process 'OK' result</span>
<a name="l00741"></a>00741 <span class="keywordflow">if</span> (!result) <span class="keywordflow">return</span> 0;
<a name="l00742"></a>00742
<a name="l00743"></a>00743 <span class="comment">// Process 'not OK' result - set python error string if it isn't set yet</span>
<a name="l00744"></a>00744 <span class="keywordflow">if</span> (!PyErr_Occurred())
<a name="l00745"></a>00745 PyErr_Format(PyExc_AttributeError,
<a name="l00746"></a>00746 <span class="stringliteral">"attribute '%s' on '%s' can't be updated"</span>,
<a name="l00747"></a>00747 PyString_AsString(name), <span class="keyword">self</span>->ob_type->tp_name);
<a name="l00748"></a>00748 <span class="keywordflow">return</span> -1;
<a name="l00749"></a>00749 }
<a name="l00750"></a>00750 <span class="keywordflow">catch</span> (...)
<a name="l00751"></a>00751 {
<a name="l00752"></a>00752 <a class="code" href="a00155.html#abf914311a885c679e6985f6fc1771c0a">PythonType::evalException</a>();
<a name="l00753"></a>00753 <span class="keywordflow">return</span> -1;
<a name="l00754"></a>00754 }
<a name="l00755"></a>00755 }
<a name="l00756"></a>00756
<a name="l00757"></a>00757
<a name="l00758"></a>00758 <span class="keyword">extern</span> <span class="stringliteral">"C"</span> <a class="code" href="a00252.html#a99b94ab8c2f2a32277559c7b2b0a054c">DECLARE_EXPORT</a> <span class="keywordtype">int</span> <a class="code" href="a00257.html#a28798e75e76078d3832b1c4ee0275291">compare_handler</a>(PyObject *<span class="keyword">self</span>, PyObject *other)
<a name="l00759"></a>00759 {
<a name="l00760"></a>00760 <span class="keywordflow">try</span>
<a name="l00761"></a>00761 {
<a name="l00762"></a>00762 <span class="keywordflow">return</span> <span class="keyword">static_cast<</span>PythonExtensionBase*<span class="keyword">></span>(<span class="keyword">self</span>)->compare(other);
<a name="l00763"></a>00763 }
<a name="l00764"></a>00764 <span class="keywordflow">catch</span> (...)
<a name="l00765"></a>00765 {
<a name="l00766"></a>00766 <a class="code" href="a00155.html#abf914311a885c679e6985f6fc1771c0a">PythonType::evalException</a>();
<a name="l00767"></a>00767 <span class="keywordflow">return</span> -1;
<a name="l00768"></a>00768 }
<a name="l00769"></a>00769 }
<a name="l00770"></a>00770
<a name="l00771"></a>00771
<a name="l00772"></a>00772 <span class="keyword">extern</span> <span class="stringliteral">"C"</span> <a class="code" href="a00252.html#a99b94ab8c2f2a32277559c7b2b0a054c">DECLARE_EXPORT</a> PyObject* <a class="code" href="a00257.html#ae263cd0dae72bd875e83fb8f7a701e36">iternext_handler</a>(PyObject *<span class="keyword">self</span>)
<a name="l00773"></a>00773 {
<a name="l00774"></a>00774 <span class="keywordflow">try</span>
<a name="l00775"></a>00775 {
<a name="l00776"></a>00776 <span class="keywordflow">return</span> <span class="keyword">static_cast<</span>PythonExtensionBase*<span class="keyword">></span>(<span class="keyword">self</span>)->iternext();
<a name="l00777"></a>00777 }
<a name="l00778"></a>00778 <span class="keywordflow">catch</span> (...)
<a name="l00779"></a>00779 {
<a name="l00780"></a>00780 <a class="code" href="a00155.html#abf914311a885c679e6985f6fc1771c0a">PythonType::evalException</a>();
<a name="l00781"></a>00781 <span class="keywordflow">return</span> NULL;
<a name="l00782"></a>00782 }
<a name="l00783"></a>00783 }
<a name="l00784"></a>00784
<a name="l00785"></a>00785
<a name="l00786"></a>00786 <span class="keyword">extern</span> <span class="stringliteral">"C"</span> <a class="code" href="a00252.html#a99b94ab8c2f2a32277559c7b2b0a054c">DECLARE_EXPORT</a> PyObject* <a class="code" href="a00257.html#af18793cf8f11dc5f84204b39bbf71141">call_handler</a>(PyObject* <span class="keyword">self</span>, PyObject* args, PyObject* kwds)
<a name="l00787"></a>00787 {
<a name="l00788"></a>00788 <span class="keywordflow">try</span>
<a name="l00789"></a>00789 {
<a name="l00790"></a>00790 <span class="keywordflow">return</span> <span class="keyword">static_cast<</span>PythonExtensionBase*<span class="keyword">></span>(<span class="keyword">self</span>)->call(args, kwds);
<a name="l00791"></a>00791 }
<a name="l00792"></a>00792 <span class="keywordflow">catch</span> (...)
<a name="l00793"></a>00793 {
<a name="l00794"></a>00794 <a class="code" href="a00155.html#abf914311a885c679e6985f6fc1771c0a">PythonType::evalException</a>();
<a name="l00795"></a>00795 <span class="keywordflow">return</span> NULL;
<a name="l00796"></a>00796 }
<a name="l00797"></a>00797 }
<a name="l00798"></a>00798
<a name="l00799"></a>00799
<a name="l00800"></a>00800 <span class="keyword">extern</span> <span class="stringliteral">"C"</span> <a class="code" href="a00252.html#a99b94ab8c2f2a32277559c7b2b0a054c">DECLARE_EXPORT</a> PyObject* <a class="code" href="a00257.html#a7f87427f25a82f58d676635ce0811539">str_handler</a>(PyObject* <span class="keyword">self</span>)
<a name="l00801"></a>00801 {
<a name="l00802"></a>00802 <span class="keywordflow">try</span>
<a name="l00803"></a>00803 {
<a name="l00804"></a>00804 <span class="keywordflow">return</span> <span class="keyword">static_cast<</span>PythonExtensionBase*<span class="keyword">></span>(<span class="keyword">self</span>)->str();
<a name="l00805"></a>00805 }
<a name="l00806"></a>00806 <span class="keywordflow">catch</span> (...)
<a name="l00807"></a>00807 {
<a name="l00808"></a>00808 <a class="code" href="a00155.html#abf914311a885c679e6985f6fc1771c0a">PythonType::evalException</a>();
<a name="l00809"></a>00809 <span class="keywordflow">return</span> NULL;
<a name="l00810"></a>00810 }
<a name="l00811"></a>00811 }
<a name="l00812"></a>00812
<a name="l00813"></a>00813 } <span class="comment">// end namespace</span>
<a name="l00814"></a>00814 } <span class="comment">// end namespace</span>
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