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/*---------------------------------------------------------------------------*\
## #### ###### |
## ## ## | Copyright: ICE Stroemungsfoschungs GmbH
## ## #### |
## ## ## | http://www.ice-sf.at
## #### ###### |
-------------------------------------------------------------------------------
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright held by original author
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is based on OpenFOAM.
OpenFOAM is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 2 of the License, or (at your
option) any later version.
OpenFOAM 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 General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM; if not, write to the Free Software Foundation,
Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Class
pythonInterpreterWrapper
Description
Makes sure that the object receives a python-Interpreter on its own
SourceFiles
pythonInterpreterWrapper.C
Contributors/Copyright:
2011-2013 Bernhard F.W. Gschaider <bgschaid@ice-sf.at>
SWAK Revision: $Id: $
\*---------------------------------------------------------------------------*/
#ifndef pythonInterpreterWrapper_H
#define pythonInterpreterWrapper_H
#include "dictionary.H"
#include "Time.H"
#include "Python.h"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
/*---------------------------------------------------------------------------*\
Class pythonInterpreterWrapper Declaration
\*---------------------------------------------------------------------------*/
class pythonInterpreterWrapper
{
// Private Member Functions
//- Disallow default bitwise copy construct
pythonInterpreterWrapper(const pythonInterpreterWrapper&);
//- Disallow default bitwise assignment
void operator=(const pythonInterpreterWrapper&);
// Private data
const objectRegistry& obr_;
const dictionary& dict_;
//- state of 'my' Python subinterpreter
PyThreadState *pythonState_;
//- state of 'old' Python subinterpreter
PyThreadState *oldPythonState_;
//- whether or not to use the numpy library
bool useNumpy_;
//- whether or not to use IPython as the shell if it is installed
bool useIPython_;
//- whether or not we tried IPython
bool triedIPython_;
//- embed IPython using the old convention
bool oldIPython_;
//- should exceptions be tolerated or lead to a fatal error?
bool tolerateExceptions_;
//- Should a non-uniform variable result in a warning?
bool warnOnNonUniform_;
//- Is this correctly parallelized?
bool isParallelized_;
//- Should parallel runs only run on the master
bool parallelMasterOnly_;
//- List of global swak namespaces to get values
//- variables in those namespaces should be inserted into the
//- Python namespace before running the snipplet
wordList swakToPythonNamespaces_;
//- Namespace to write values to
//- this global swak-namespace will get all values (if the user request such)
word pythonToSwakNamespace_;
//- Python variables that swak will receive
//- the values of these variables will get written to the global swak namespace
//- only variables that can be either interpreted as a scalar or a vector are
//- supported
wordList pythonToSwakVariables_;
//- should we get an interactive Python-Shell after every code-Execution?
//- used for debugging the Python-program
bool interactiveAfterExecute_;
//- used for debugging of failed Python-program
bool interactiveAfterException_;
void getGlobals();
void setGlobals();
void initIPython();
protected:
//- how many instances exist (we need a separate interpreter for each of those)
static label interpreterCount;
static PyThreadState *mainThreadState;
//- Execute after the python-code has been called
void doAfterExecution(
bool fail,
const string &code,
bool putVariables,
bool failOnException=false
);
//- set the state to "my" interpreter
void setInterpreter();
//- release the state to "my" interpreter
void releaseInterpreter();
//- Check whether we want to continue (parallel)
bool parallelNoRun(bool doWarning=false);
//- run an interactive sesssion
void interactiveLoop(const string &banner);
//- import a single library
bool importLib(
const word &name,
const word &as=""
);
public:
//- Execute code. Return true if there was no problem
bool executeCode(
const string &code,
bool putVariables,
bool failOnException=false
);
//- Execute code and capture the stdout. Return true if there was no problem
bool executeCodeCaptureOutput(
const string &code,
string &stdout,
bool putVariables,
bool failOnException=false
);
//- Execute code and return a value
template <typename T,class Func>
T evaluateCode(
const string &code,
bool failOnException=false
);
//- Execute code and see if it returns to true or false
bool evaluateCodeTrueOrFalse(
const string &code,
bool failOnException=false
);
//- Execute code and use the return value as a float value
scalar evaluateCodeScalar(
const string &code,
bool failOnException=false
);
//- Execute code and use the return value as a integer value
label evaluateCodeLabel(
const string &code,
bool failOnException=false
);
//- Read code according to the dictionary
void readCode(
const dictionary &dict,
const word &prefix,
string &code,
bool mustRead=true
);
//- shorthand for reading
string readCode(
const word &prefix,
bool mustRead=true
);
//- set up the environment with the basic variables
void initEnvironment(const Time &t);
//- set the variable 'runTime' in the interpreter
void setRunTime(const Time &time);
//- Runtime type information
TypeName("pythonInterpreterWrapper");
// Constructors
//- Construct from components
pythonInterpreterWrapper
(
const objectRegistry& obr,
const dictionary&,
bool forceToNamespace=false,
bool separateInterpreter=true
);
virtual ~pythonInterpreterWrapper();
void setInteractive(
bool interactiveAfterExecute,
bool interactiveAfterException
);
};
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
} // End namespace Foam
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#endif
// ************************************************************************* //

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