ATLAS Offline Software
Public Member Functions | Protected Member Functions | Protected Attributes | Private Member Functions | List of all members
PyAthena::Svc Class Reference

#include <PyAthenaSvc.h>

Inheritance diagram for PyAthena::Svc:
Collaboration diagram for PyAthena::Svc:

Public Member Functions

 Svc (const std::string &name, ISvcLocator *svcLocator)
 Constructor with parameters: More...
 
virtual ~Svc ()
 Destructor: More...
 
virtual StatusCode initialize () override
 Gaudi Service Implementation. More...
 
virtual StatusCode reinitialize () override
 
virtual StatusCode start () override
 
virtual StatusCode stop () override
 
virtual StatusCode finalize () override
 
virtual StatusCode sysInitialize () override
 
const char * typeName () const override
 return the std::type_info name of the underlying py-component This is used by concrete implementations to connect a python component to its C++ counter-part More...
 
virtual PyObjectself () override
 return associated python object. More...
 
virtual void handle (const Incident &incident) override
 callback method for the IIncidentSvc More...
 

Protected Member Functions

virtual bool setPyAttr (PyObject *pyobj) override
 attach the C++ component to its python cousin More...
 

Protected Attributes

PyObjectm_self
 Pointer to self (from the python world) More...
 

Private Member Functions

 Svc ()=delete
 Default constructor: More...
 

Detailed Description

Definition at line 31 of file PyAthenaSvc.h.

Constructor & Destructor Documentation

◆ Svc() [1/2]

PyAthena::Svc::Svc ( const std::string &  name,
ISvcLocator *  svcLocator 
)

Constructor with parameters:

Definition at line 41 of file PyAthenaSvc.cxx.

41  :
42  base_class( name, svcLocator ),
43  m_self ( nullptr )
44 {}

◆ ~Svc()

PyAthena::Svc::~Svc ( )
virtual

Destructor:

Definition at line 48 of file PyAthenaSvc.cxx.

49 {
50  ATH_MSG_DEBUG("Calling destructor");
51  Py_XDECREF( m_self );
52 }

◆ Svc() [2/2]

PyAthena::Svc::Svc ( )
privatedelete

Default constructor:

Member Function Documentation

◆ finalize()

StatusCode PyAthena::Svc::finalize ( )
overridevirtual

Definition at line 71 of file PyAthenaSvc.cxx.

72 {
73  ATH_MSG_INFO("Finalizing " << name() << "...");
74  return PyAthena::callPyMethod( m_self, "sysFinalize" );
75 }

◆ handle()

void PyAthena::Svc::handle ( const Incident &  incident)
overridevirtual

callback method for the IIncidentSvc

Definition at line 122 of file PyAthenaSvc.cxx.

123 {
125  if (0 == PyObject_HasAttrString (m_self, (char*)"handle")) {
126  // python side does not implement 'handle'. Fair enough.
127  // XXX FIXME: could say something though: we have been registered as
128  // listener, so there might be some kind of inconsistency...
129  return;
130  }
131 
132  PyObject *o = TPython::CPPInstance_FromVoidPtr ((void*)(&inc), "Incident");
133  if (0 == o) {
134  Py_XDECREF (o);
136  }
137 
138  PyObject *res = PyObject_CallMethod (m_self,
139  (char*)"handle",
140  (char*)"O", o);
141  if (0 == res) {
142  Py_XDECREF (res);
143  Py_DECREF (o);
145  }
146 
147  Py_DECREF (res);
148  Py_DECREF (o);
149  return;
150 }

◆ initialize()

StatusCode PyAthena::Svc::initialize ( )
overridevirtual

Gaudi Service Implementation.

Definition at line 57 of file PyAthenaSvc.cxx.

58 {
59  ATH_MSG_INFO("Initializing " << name() << "...");
60  return PyAthena::callPyMethod( m_self, "sysInitialize" );
61 }

◆ reinitialize()

StatusCode PyAthena::Svc::reinitialize ( )
overridevirtual

Definition at line 64 of file PyAthenaSvc.cxx.

65 {
66  ATH_MSG_INFO("Re-Initializing " << name() << "...");
67  return PyAthena::callPyMethod( m_self, "sysReinitialize" );
68 }

◆ self()

virtual PyObject* PyAthena::Svc::self ( )
inlineoverridevirtual

return associated python object.

BORROWED reference.

Definition at line 68 of file PyAthenaSvc.h.

68 { return m_self; }

◆ setPyAttr()

bool PyAthena::Svc::setPyAttr ( PyObject pyobj)
overrideprotectedvirtual

attach the C++ component to its python cousin

Definition at line 154 of file PyAthenaSvc.cxx.

155 {
156  // now we tell the PyObject which C++ object it is the cousin of.
158  PyObject* pyobj = TPython::CPPInstance_FromVoidPtr
159  ( (void*)this, this->typeName() );
160  if ( !pyobj ) {
161  PyErr_Clear();
162  // try PyAthena::Svc
163  pyobj = TPython::CPPInstance_FromVoidPtr ((void*)this, "PyAthena::Svc");
165  ("could not dyncast component [" << name() << "] to a python "
166  << "object of type [" << this->typeName() << "] (probably a missing "
167  << "dictionary)" << endmsg
168  << "fallback to [PyAthena::Svc]...");
169  }
170  if ( !pyobj ) {
171  PyErr_Clear();
173  ("Could not dyncast component [" << name() << "] to a pyobject of type ["
174  << this->typeName() << "]");
175  } else {
176  if ( -1 == PyObject_SetAttrString(o, "_cppHandle", pyobj) ) {
177  PyErr_Clear();
179  ("Could not attach C++ handle [" << name() << "] to its python "
180  << "cousin !");
181  if ( -1 == PyObject_SetAttrString(o, "_cppHandle", Py_None) ) {
182  PyErr_Clear();
184  ("could not attach a dummy C++ handle [" << name() << "] to its "
185  << "python cousin !");
186  }
187  } else {
188  return true;
189  }
190  }
191  return false;
192 }

◆ start()

StatusCode PyAthena::Svc::start ( )
overridevirtual

Definition at line 78 of file PyAthenaSvc.cxx.

79 {
80  return PyAthena::callPyMethod( m_self, "sysStart" );
81 }

◆ stop()

StatusCode PyAthena::Svc::stop ( )
overridevirtual

Definition at line 84 of file PyAthenaSvc.cxx.

85 {
86  return PyAthena::callPyMethod( m_self, "sysStop" );
87 }

◆ sysInitialize()

StatusCode PyAthena::Svc::sysInitialize ( )
overridevirtual

Definition at line 90 of file PyAthenaSvc.cxx.

91 {
93  ( "PyAthena::PyComponentMgr/PyComponentMgr", name() );
94  if ( !pyMgr.retrieve().isSuccess() ) {
96  ("Could not retrieve service [" << pyMgr.typeAndName() << "] !!");
97  return StatusCode::FAILURE;
98  }
99 
100  // first retrieve our python object cousin...
101  m_self = pyMgr->pyObject( this );
102 
103  if ( m_self == Py_None ) {
104  ATH_MSG_ERROR("Wrapped PyObject is NONE !");
105  return StatusCode::FAILURE;
106  }
107 
108  // re-route to usual sysInit...
109  return SvcBase_t::sysInitialize();
110 }

◆ typeName()

const char * PyAthena::Svc::typeName ( ) const
override

return the std::type_info name of the underlying py-component This is used by concrete implementations to connect a python component to its C++ counter-part

Definition at line 114 of file PyAthenaSvc.cxx.

115 {
116  static const std::string tname = System::typeinfoName(typeid(*this));
117  return tname.c_str();
118 }

Member Data Documentation

◆ m_self

PyObject* PyAthena::Svc::m_self
protected

Pointer to self (from the python world)

Definition at line 89 of file PyAthenaSvc.h.


The documentation for this class was generated from the following files:
PyAthena::throw_py_exception
void throw_py_exception(bool display=true)
helper function to capture the boilerplate code for user friendly stack trace display
Definition: PyAthenaUtils.cxx:135
ATH_MSG_INFO
#define ATH_MSG_INFO(x)
Definition: AthMsgStreamMacros.h:31
RootUtils::PyGILStateEnsure
Definition: PyAthenaGILStateEnsure.h:20
ATH_MSG_ERROR
#define ATH_MSG_ERROR(x)
Definition: AthMsgStreamMacros.h:33
Athena::typeinfoName
std::string typeinfoName(const std::type_info &ti)
Convert a type_info to a demangled string.
Definition: AthenaKernel/src/ClassName.cxx:23
PyAthena::Svc::typeName
const char * typeName() const override
return the std::type_info name of the underlying py-component This is used by concrete implementation...
Definition: PyAthenaSvc.cxx:114
endmsg
#define endmsg
Definition: AnalysisConfig_Ntuple.cxx:63
ATH_MSG_DEBUG
#define ATH_MSG_DEBUG(x)
Definition: AthMsgStreamMacros.h:29
res
std::pair< std::vector< unsigned int >, bool > res
Definition: JetGroupProductTest.cxx:14
PyAthena::Svc::m_self
PyObject * m_self
Pointer to self (from the python world)
Definition: PyAthenaSvc.h:89
name
std::string name
Definition: Control/AthContainers/Root/debug.cxx:228
ATH_MSG_WARNING
#define ATH_MSG_WARNING(x)
Definition: AthMsgStreamMacros.h:32
PyObject
_object PyObject
Definition: IPyComponent.h:26
ServiceHandle
Definition: ClusterMakerTool.h:37