PythonInterpreter Class Reference

This class initializes and finalized the python interpreter. More...

Public Types
typedef int	id_type

Public Member Functions
	~PythonInterpreter ()

Static Public Member Functions
static void	init (id_type num)
	Initialize unique (singleton) python interpreter instance, and set Singular type identifier. More...
static id_type	id ()
	Get Singular type identitfier. More...

Private Member Functions
	PythonInterpreter ()
	Singleton: Only init() is allowed to construct an instance. More...
void	start_python ()
void	init_python ()
void	set_python_defaults ()

Static Private Member Functions
static PythonInterpreter &	instance ()
	Static initialization - safely takes care of destruction on program termination. More...

Private Attributes
id_type	m_id
bool	m_owns_python

Detailed Description

This class initializes and finalized the python interpreter.

It also stores the Singular token number, which is assigned to this type on runtime.

Definition at line 45 of file pyobject.cc.

Member Typedef Documentation

id_type

typedef int PythonInterpreter::id_type

Definition at line 47 of file pyobject.cc.

Constructor & Destructor Documentation

~PythonInterpreter()

PythonInterpreter::~PythonInterpreter ( )

inline

Definition at line 49 of file pyobject.cc.

{ if(m_owns_python) Py_Finalize();  }

PythonInterpreter()

PythonInterpreter::PythonInterpreter ( )

inlineprivate

Singleton: Only init() is allowed to construct an instance.

Definition at line 60 of file pyobject.cc.

                     :
    m_id(0), m_owns_python(false)  { start_python(); }

Member Function Documentation

id()

static id_type PythonInterpreter::id ( )

inlinestatic

Get Singular type identitfier.

Definition at line 56 of file pyobject.cc.

{ return instance().m_id; }

init()

static void PythonInterpreter::init ( id_type  num )

inlinestatic

Initialize unique (singleton) python interpreter instance, and set Singular type identifier.

Definition at line 53 of file pyobject.cc.

{ instance().m_id = num; }

init_python()

void PythonInterpreter::init_python ( )

inlineprivate

Definition at line 77 of file pyobject.cc.

  {
    Py_Initialize();
    m_owns_python = true;
  }

instance()

static PythonInterpreter & PythonInterpreter::instance ( )

inlinestaticprivate

Static initialization - safely takes care of destruction on program termination.

Definition at line 65 of file pyobject.cc.

  {
    STATIC_INST_VAR PythonInterpreter init_interpreter;
    return init_interpreter;
  }

set_python_defaults()

void PythonInterpreter::set_python_defaults ( )

inlineprivate

Definition at line 83 of file pyobject.cc.

  {
    // Sone python modules needs argc, argv set for some reason
    char* argv = (char*)"";
    PySys_SetArgv(1, &argv);
    PyRun_SimpleString("from sys import path, modules");
    PyRun_SimpleString("_SINGULAR_IMPORTED = dict()");
 
    char cmd[MAXPATHLEN + 20];
    sprintf(cmd, "path.insert(0, '%s')", feGetResource('b'));
    PyRun_SimpleString(cmd);
    PyRun_SimpleString("del path");  // cleanup
  }

start_python()

void PythonInterpreter::start_python ( )

inlineprivate

Definition at line 71 of file pyobject.cc.

  {
    if (!Py_IsInitialized()) init_python();
    set_python_defaults();
  }

Field Documentation

m_id

id_type PythonInterpreter::m_id

private

Definition at line 97 of file pyobject.cc.

m_owns_python

bool PythonInterpreter::m_owns_python

private

Definition at line 98 of file pyobject.cc.

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The documentation for this class was generated from the following file:

• Singular/dyn_modules/pyobject/pyobject.cc