Version: 7.8.0
Container_init_python.hxx
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1 // Copyright (C) 2007-2016 CEA/DEN, EDF R&D, OPEN CASCADE
2 //
3 // Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
4 // CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
5 //
6 // This library is free software; you can redistribute it and/or
7 // modify it under the terms of the GNU Lesser General Public
8 // License as published by the Free Software Foundation; either
9 // version 2.1 of the License, or (at your option) any later version.
10 //
11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 // Lesser General Public License for more details.
15 //
16 // You should have received a copy of the GNU Lesser General Public
17 // License along with this library; if not, write to the Free Software
18 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 //
20 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
21 //
22 
23 // SALOME Container : implementation of container and engine for Kernel
24 // File : Container_init_python.hxx
25 // Author : Paul RASCLE, EDF
26 // Module : KERNEL
27 // $Header$
28 //
29 #ifndef _CONTAINER_INIT_PYTHON_HXX_
30 #define _CONTAINER_INIT_PYTHON_HXX_
31 
32 #include "SALOME_Container.hxx"
33 #include <SALOMEconfig.h>
34 
35 #include <pthread.h> // must be before Python.h !
36 
37 #ifdef _XOPEN_SOURCE
38 #undef _XOPEN_SOURCE
39 #endif
40 #include <Python.h>
41 
42 
43 // next two MACRO must be used together only once inside a block
44 // -------------------------------------------------------------
45 // protect a sequence of Python calls:
46 // - Python lock must be acquired for these calls
47 // - new Python thread state allows multi thread use of the sequence:
48 // - Python may release the lock within the sequence, so multiple
49 // thread execution of the sequence may occur.
50 // - For that case, each sequence call must use a specific Python
51 // thread state.
52 // - There is no need of C Lock protection of the sequence.
53 
54 
55 #define Py_ACQUIRE_NEW_THREAD \
56  PyGILState_STATE gil_state = PyGILState_Ensure();
57 
58 #define Py_RELEASE_NEW_THREAD \
59  PyGILState_Release(gil_state);
60 
62 {
63  static void init_python(int argc, char **argv);
64 };
65 
66 #endif