1 // SALOME Container : implementation of container and engine for Kernel
3 // Copyright (C) 2003 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
4 // CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
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.
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.
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
20 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
24 // File : Container_init_python.hxx
25 // Author : Paul RASCLE, EDF
29 #ifndef _CONTAINER_INIT_PYTHON_HXX_
30 #define _CONTAINER_INIT_PYTHON_HXX_
32 #include <pthread.h> // must be before Python.h !
36 // next two MACRO must be used together only once inside a block
37 // -------------------------------------------------------------
38 // protect a sequence of Python calls:
39 // - Python lock must be acquired for these calls
40 // - new Python thread state allows multi thread use of the sequence:
41 // - Python may release the lock within the sequence, so multiple
42 // thread execution of the sequence may occur.
43 // - For that case, each sequence call must use a specific Python
45 // - There is no need of C Lock protection of the sequence.
48 #if defined CONTAINER_EXPORTS
50 #define CONTAINER_EXPORT __declspec( dllexport )
52 #define CONTAINER_EXPORT
56 #define CONTAINER_EXPORT __declspec( dllimport )
58 #define CONTAINER_EXPORT
62 #define Py_ACQUIRE_NEW_THREAD \
63 PyEval_AcquireLock(); \
64 PyThreadState *myTstate = PyThreadState_New(KERNEL_PYTHON::_interp); \
65 PyThreadState *myoldTstate = PyThreadState_Swap(myTstate);
67 #define Py_RELEASE_NEW_THREAD \
68 PyEval_ReleaseThread(myTstate); \
69 PyThreadState_Delete(myTstate);
71 struct CONTAINER_EXPORT KERNEL_PYTHON
74 static PyThreadState *get_gtstate() { return KERNEL_PYTHON::_gtstate; }
75 static PyObject *getsalome_shared_modules_module() { return KERNEL_PYTHON::salome_shared_modules_module; }
76 static PyInterpreterState *get_interp() { return KERNEL_PYTHON::_interp; }
78 static PyThreadState *_gtstate;
79 static PyObject *salome_shared_modules_module;
80 static PyInterpreterState *_interp;
82 static void init_python(int argc, char **argv);