PLearn 0.1
PythonEmbedder.cc
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00001 // -*- C++ -*-
00002 
00003 // PythonEmbedder.cc
00004 //
00005 // Copyright (C) 2004 Nicolas Chapados 
00006 // 
00007 // Redistribution and use in source and binary forms, with or without
00008 // modification, are permitted provided that the following conditions are met:
00009 // 
00010 //  1. Redistributions of source code must retain the above copyright
00011 //     notice, this list of conditions and the following disclaimer.
00012 // 
00013 //  2. Redistributions in binary form must reproduce the above copyright
00014 //     notice, this list of conditions and the following disclaimer in the
00015 //     documentation and/or other materials provided with the distribution.
00016 // 
00017 //  3. The name of the authors may not be used to endorse or promote
00018 //     products derived from this software without specific prior written
00019 //     permission.
00020 // 
00021 // THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
00022 // IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
00023 // OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
00024 // NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
00025 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
00026 // TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
00027 // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
00028 // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
00029 // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
00030 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00031 // 
00032 // This file is part of the PLearn library. For more information on the PLearn
00033 // library, go to the PLearn Web site at www.plearn.org
00034 
00035 /* *******************************************************      
00036  * $Id: PythonEmbedder.cc 5414 2006-04-20 23:28:00Z chapados $ 
00037  ******************************************************* */
00038 
00039 // Authors: Nicolas Chapados
00040 
00043 #define PL_LOG_MODULE_NAME "PythonEmbedder"
00044 
00045 #include "PythonEmbedder.h"
00046 #include "PythonIncludes.h"
00047 #include <plearn/io/pl_log.h>
00048 
00049 namespace PLearn {
00050 using namespace std;
00051 
00052 static int num_python_instances = 0;
00053 
00054 PythonEmbedder::PythonEmbedder()
00055 {
00056     if (num_python_instances == 0) {
00057         MODULE_LOG << "Py_Initialize() called" << endl;
00058         Py_Initialize();
00059     }
00060 
00061     num_python_instances++;
00062 }
00063 
00064 PythonEmbedder::~PythonEmbedder()
00065 {
00066     if (num_python_instances > 0) {
00067         --num_python_instances;
00068         if (num_python_instances == 0)
00069             MODULE_LOG << "Py_Finalize() called" << endl;
00070             Py_Finalize();
00071     }
00072 }
00073 
00074 } // end of namespace PLearn
00075 
00076 
00077 /*
00078   Local Variables:
00079   mode:c++
00080   c-basic-offset:4
00081   c-file-style:"stroustrup"
00082   c-file-offsets:((innamespace . 0)(inline-open . 0))
00083   indent-tabs-mode:nil
00084   fill-column:79
00085   End:
00086 */
00087 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=79 :
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