-// SALOME SALOMEGUI : implementation of desktop and GUI kernel
+// Copyright (C) 2007-2023 CEA/DEN, EDF R&D, OPEN CASCADE
//
-// Copyright (C) 2003 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
-// CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
-//
-// This library is free software; you can redistribute it and/or
-// modify it under the terms of the GNU Lesser General Public
-// License as published by the Free Software Foundation; either
-// version 2.1 of the License.
-//
-// This library is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-// Lesser General Public License for more details.
-//
-// You should have received a copy of the GNU Lesser General Public
-// License along with this library; if not, write to the Free Software
-// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-//
-// See http://www.opencascade.org/SALOME/ or email : webmaster.salome@opencascade.org
+// Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
+// CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation; either
+// version 2.1 of the License, or (at your option) any later version.
//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+//
+// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
//
// File : SalomeApp_PyInterp.cxx
// Author : Nicolas REJNERI
-// Module : SALOME
-// $Header$
#include "SalomeApp_PyInterp.h"
-
-#include <utilities.h>
-#include <Container_init_python.hxx>
-
-#include <string>
-#include <vector>
-
-#include "PyInterp_base.h" // this include must be first (see PyInterp_base.h)!
-
-#include <cStringIO.h>
+#include "SUIT_ResourceMgr.h"
/*!
- * constructor : multi Python interpreter, one per SALOME study.
- * calls initialize method defined in base class, which calls virtual methods
- * initstate & initcontext redefined here.
- */
-SalomeApp_PyInterp::SalomeApp_PyInterp(): PythonConsole_PyInterp()
+ \brief Constructor
+*/
+SalomeApp_PyInterp::SalomeApp_PyInterp( SUIT_ResourceMgr* resMgr )
+ : myFirstRun( true ), myFirstInitStudy( false ), myResourceMgr( resMgr )
{
}
/*!
- * Destructor.
- */
+ \brief Destructor.
+*/
SalomeApp_PyInterp::~SalomeApp_PyInterp()
{
}
-/*!\class SalomeApp_PyInterp
- * EDF-CCAR
- * Wasashen SALOME uses multi Python interpreter feature,
- * Every study has its own interpreter and thread state (_tstate = Py_NewInterpreter())
- * This is fine because every study has its own modules (sys.modules) stdout and stderr
- * BUT some Python modules must be imported only once. In multi interpreter context Python
- * modules (*.py) are imported several times.
- * The pyqt module must be imported only once because it registers classes in a C module.
- * It's quite the same with omniorb modules (internals and generated with omniidl)
- * This problem is handled with "shared modules" defined in salome_shared_modules.py
- * These "shared modules" are imported only once and only copied in all the other interpreters
- * BUT it's not the only problem. Every interpreter has its own __builtin__ module. That's fine
- * but if we have copied some modules and imported others problems may arise with operations that
- * are not allowed in restricted execution environment. So we must impose that all interpreters
- * have identical __builtin__ module.
- * That's all, for the moment ...
+/*!
+ * Initialize context dictionaries. GIL is held already.
+ * The code executed in an embedded interpreter is expected to be run at the module
+ * level, in which case local and global context have to be the same dictionary.
+ * See: http://stackoverflow.com/questions/12265756/c-python-running-python-code-within-a-context
+ * for an explanation.
*/
-
-
bool SalomeApp_PyInterp::initContext()
{
- /*!
- * The GIL is assumed to be held
- * It is the caller responsability caller to acquire the GIL
- * It will still be held on initContext output
- */
- if ( !PythonConsole_PyInterp::initContext() )
- return false;
-
- // Debut modif CCAR
- // Import special module to change the import mechanism
- PyObjWrapper m1( PyImport_ImportModule( "import_hook" ) );
- if ( !m1 )
- {
- MESSAGE( "initContext: problem with import_hook import" );
- PyErr_Print();
- PyErr_Clear();
- ASSERT( 0 );
- return false;
+ bool ok = PyConsole_Interp::initContext();
+ if ( ok ) {
+ int ret = PyRun_SimpleString( "import salome_iapp; salome_iapp.IN_SALOME_GUI = True" );
+ ok = ok && (ret == 0);
}
+ return ok;
+}
- // Call init_shared_modules to initialize the shared import mechanism for modules
- //that must not be imported twice
- PyObjWrapper m2( PyObject_CallMethod( m1, "init_shared_modules", "O", KERNEL_PYTHON::salome_shared_modules_module ) );
- if ( !m2 )
- {
- MESSAGE( "initContext: problem with init_shared_modules call" );
- PyErr_Print();
- PyErr_Clear();
- ASSERT( 0 );
- return false;
+/*!
+ \brief Called before each Python command running.
+*/
+int SalomeApp_PyInterp::beforeRun()
+{
+ if ( myFirstRun ) {
+ myFirstRun = false;
+ QStringList parameters = myResourceMgr->parameters( "pythonpath" );
+ foreach ( QString parameter, parameters ) {
+ QStringList paths = myResourceMgr->stringValue( "pythonpath", parameter ).split( ";;" );
+ foreach( QString path, paths )
+ simpleRun( QString( "import sys; sys.path.append('%1')" ).arg( path ).toUtf8().constData(), false );
+ }
+ int ret = simpleRun( "from Help import *", false );
+ if ( ret )
+ return ret;
}
-
- return true;
+ if ( myFirstInitStudy ) {
+ myFirstInitStudy = false;
+ int ret = simpleRun( "import salome", false );
+ if ( ret )
+ return ret;
+ ret = simpleRun( "salome.salome_init(embedded=True)", false );
+ if ( ret )
+ return ret;
+ }
+ return PyConsole_Interp::beforeRun();
}
-void SalomeApp_PyInterp::init_python()
+/*!
+ \brief Called when study is initialized
+ */
+void SalomeApp_PyInterp::initStudy()
{
- /*
- * Initialize the main state (_gtstate) if not already done
- * The lock is released on init_python output
- * It is the caller responsability to acquire it if needed
- */
- MESSAGE("PyInterp_base::init_python");
- ASSERT(KERNEL_PYTHON::_gtstate); // initialisation in main
- SCRUTE(KERNEL_PYTHON::_gtstate);
-// if(!_gtstate){
-// PyReleaseLock aReleaseLock;
-// Py_Initialize(); // Initialize the interpreter
-// PyEval_InitThreads(); // Initialize and acquire the global interpreter lock
-// PySys_SetArgv(_argc,_argv); // initialize sys.argv
-// _gtstate = PyThreadState_Get();
-// }
+ myFirstInitStudy = true;
}
+/*!
+ \brief Called when study is closed
+*/
+void SalomeApp_PyInterp::closeContext()
+{
+ myFirstInitStudy = false;
+ simpleRun( "import salome", false );
+ simpleRun( "salome.salome_close()", false );
+}
