| # Gaudi Framework, version v20r4
Generated: 8 Jan 2009

# GaudiPython::Helper Struct Reference

`#include <Helpers.h>`

List of all members.

## Detailed Description

Definition at line 39 of file Helpers.h.

## Public Member Functions
| Helper ()
## Static Public Member Functions
static IService * | service (ISvcLocator *svcloc, const std::string &name, bool createif=false)
static IAlgorithm * | algorithm (IAlgManager *algmgr, const std::string &name)
static DataObject * | dataobject (IDataProviderSvc *dpsvc, const std::string &path)
static IAlgTool * | tool (IToolSvc *toolsvc, const std::string &type, const std::string &name, IInterface *p, bool cif)
static long | loadDynamicLib (const std::string &name)
static IHistogram1D * | histo1D (IHistogramSvc *hsvc, const std::string &path)
static IHistogram2D * | histo2D (IHistogramSvc *hsvc, const std::string &path)
static IHistogram3D * | histo3D (IHistogramSvc *hsvc, const std::string &path)
static IProfile1D * | profile1D (IHistogramSvc *hsvc, const std::string &path)
static IProfile2D * | profile2D (IHistogramSvc *hsvc, const std::string &path)
template<class T>
static PyObject * | toArray (T *ptr, Py_ssize_t size)
static PyObject * | toIntArray (void *ptr, Py_ssize_t size)
static PyObject * | toShortArray (void *ptr, Py_ssize_t size)
static PyObject * | toFloatArray (void *ptr, Py_ssize_t size)
static PyObject * | toDoubleArray (void *ptr, Py_ssize_t size)
template<class T>
static T * | toAddress (std::vector< T > &v)
template<class T>
static T * | toAddress (void *a)
## Static Private Member Functions
template<class T>
static Py_ssize_t | Array_length (PyObject *self)
template<class T>
static PyObject * | toPython (T *o)
static PyObject * | toPython (int *o)
static PyObject * | toPython (short *o)
static PyObject * | toPython (char *o)
static PyObject * | toPython (long *o)
static PyObject * | toPython (float *o)
static PyObject * | toPython (double *o)
template<class T>
static PyObject * | Array_item (PyObject *self, Py_ssize_t idx)

## Constructor & Destructor Documentation

GaudiPython::Helper::Helper | ( |  | ) | `[inline]`

Definition at line 43 of file Helpers.h.

    00043 {}

## Member Function Documentation

static IService* GaudiPython::Helper::service | ( | ISvcLocator * | svcloc,
|  | const std::string & | name,
|  | bool | createif = `false` |
| ) |  |  | `[inline, static]`

Definition at line 44 of file Helpers.h.

    00044                                                                                             {
    00045     IService* svc;
    00046     if ( svcloc->getService(name, svc, createif).isSuccess() ) return svc;
    00047     else                                                       return 0;
    00048   }

static IAlgorithm* GaudiPython::Helper::algorithm | ( | IAlgManager * | algmgr,
|  | const std::string & | name |
| ) |  |  | `[inline, static]`

Definition at line 49 of file Helpers.h.

    00049                                                                            {
    00050     IAlgorithm* alg;
    00051     if ( algmgr->getAlgorithm(name, alg ).isSuccess() ) return alg;
    00052     else                                                return 0;
    00053   }

static DataObject* GaudiPython::Helper::dataobject | ( | IDataProviderSvc * | dpsvc,
|  | const std::string & | path |
| ) |  |  | `[inline, static]`

Definition at line 54 of file Helpers.h.

    00054                                                                                  {
    00055     DataObject* o;
    00056     if ( dpsvc->retrieveObject(path,o).isSuccess() ) return o;
    00057     else return 0;
    00058   }

static IAlgTool* GaudiPython::Helper::tool | ( | IToolSvc * | toolsvc,
|  | const std::string & | type,
|  | const std::string & | name,
|  | IInterface * | p,
|  | bool | cif |
| ) |  |  | `[inline, static]`

Definition at line 59 of file Helpers.h.

    00059                                                                                                                    {
    00060     IAlgTool* o;
    00061     if ( toolsvc->retrieve(type, name, IAlgTool::interfaceID(), o, p, cif).isSuccess() ) return o;
    00062     else return 0;
    00063   }

static long GaudiPython::Helper::loadDynamicLib | ( | const std::string & | name | ) | `[inline, static]`

Definition at line 64 of file Helpers.h.

    00064                                                     {
    00065     void* h;
    00066     return System::loadDynamicLib(name, &h);
    00067   }

static IHistogram1D* GaudiPython::Helper::histo1D | ( | IHistogramSvc * | hsvc,
|  | const std::string & | path |
| ) |  |  | `[inline, static]`

Definition at line 68 of file Helpers.h.

    00068                                                                              {
    00069     IHistogram1D* h;
    00070     if ( hsvc->findObject(path, h ).isSuccess() ) return h;
    00071     else                                          return 0;
    00072   }

static IHistogram2D* GaudiPython::Helper::histo2D | ( | IHistogramSvc * | hsvc,
|  | const std::string & | path |
| ) |  |  | `[inline, static]`

Definition at line 73 of file Helpers.h.

    00073                                                                              {
    00074     IHistogram2D* h;
    00075     if ( hsvc->findObject(path, h ).isSuccess() ) return h;
    00076     else                                          return 0;
    00077   }

static IHistogram3D* GaudiPython::Helper::histo3D | ( | IHistogramSvc * | hsvc,
|  | const std::string & | path |
| ) |  |  | `[inline, static]`

Definition at line 78 of file Helpers.h.

    00078                                                                              {
    00079     IHistogram3D* h;
    00080     if ( hsvc->findObject(path, h ).isSuccess() ) return h;
    00081     else                                          return 0;
    00082   }

static IProfile1D* GaudiPython::Helper::profile1D | ( | IHistogramSvc * | hsvc,
|  | const std::string & | path |
| ) |  |  | `[inline, static]`

Definition at line 85 of file Helpers.h.

    00087   {
    00088     IProfile1D* h = 0 ;
    00089     if ( 0 != hsvc && hsvc->findObject ( path , h ).isSuccess() ) { return h ; }
    00090     return 0 ;
    00091   }

static IProfile2D* GaudiPython::Helper::profile2D | ( | IHistogramSvc * | hsvc,
|  | const std::string & | path |
| ) |  |  | `[inline, static]`

Definition at line 94 of file Helpers.h.

    00096   {
    00097     IProfile2D* h = 0 ;
    00098     if ( 0 != hsvc && hsvc->findObject ( path , h ).isSuccess() ) { return h ; }
    00099     return 0 ;
    00100   }

template<class T>

static Py_ssize_t GaudiPython::Helper::Array_length | ( | PyObject * | self | ) | `[inline, static, private]`

Definition at line 104 of file Helpers.h.

    00104                                                    {
    00105 #if PY_VERSION_HEX < 0x02050000
    00106     const
    00107 #endif
    00108     char* buf = 0;
    00109     Py_ssize_t size = (*(self->ob_type->tp_as_buffer->bf_getcharbuffer))( self, 0, &buf );
    00110     return size/sizeof(T);
    00111   }

template<class T>

static PyObject* GaudiPython::Helper::toPython | ( | T * | o | ) | `[inline, static, private]`

Definition at line 113 of file Helpers.h.

    00113 { return 0; }

static PyObject* GaudiPython::Helper::toPython | ( | int * | o | ) | `[inline, static, private]`

Definition at line 114 of file Helpers.h.

    00114 { return PyInt_FromLong((long)*o); }

static PyObject* GaudiPython::Helper::toPython | ( | short * | o | ) | `[inline, static, private]`

Definition at line 115 of file Helpers.h.

    00115 { return PyInt_FromLong((long)*o); }

static PyObject* GaudiPython::Helper::toPython | ( | char * | o | ) | `[inline, static, private]`

Definition at line 116 of file Helpers.h.

    00116 { return PyInt_FromLong((long)*o); }

static PyObject* GaudiPython::Helper::toPython | ( | long * | o | ) | `[inline, static, private]`

Definition at line 117 of file Helpers.h.

    00117 { return PyInt_FromLong(*o); }

static PyObject* GaudiPython::Helper::toPython | ( | float * | o | ) | `[inline, static, private]`

Definition at line 118 of file Helpers.h.

    00118 { return PyFloat_FromDouble((double)*o); }

static PyObject* GaudiPython::Helper::toPython | ( | double * | o | ) | `[inline, static, private]`

Definition at line 119 of file Helpers.h.

    00119 { return PyFloat_FromDouble(*o); }

template<class T>

static PyObject* GaudiPython::Helper::Array_item | ( | PyObject * | self,
|  | Py_ssize_t | idx |
| ) |  |  | `[inline, static, private]`

Definition at line 122 of file Helpers.h.

    00122                                                                 {
    00123 #if PY_VERSION_HEX < 0x02050000
    00124     const
    00125 #endif
    00126     char* buf = 0;
    00127     Py_ssize_t size = (*(self->ob_type->tp_as_buffer->bf_getcharbuffer))( self, 0, &buf );
    00128     if ( idx < 0 || idx >= size/int(sizeof(T)) ) {
    00129        PyErr_SetString( PyExc_IndexError, "buffer index out of range" );
    00130        return 0;
    00131     }
    00132     return toPython((T*)buf + idx);
    00133   }

template<class T>

static PyObject* GaudiPython::Helper::toArray | ( | T * | ptr,
|  | Py_ssize_t | size |
| ) |  |  | `[inline, static]`

Definition at line 137 of file Helpers.h.

    00137                                                       {
    00138    static PyTypeObject      type = PyBuffer_Type;
    00139    static PySequenceMethods meth = *(PyBuffer_Type.tp_as_sequence);
    00140 #if PY_VERSION_HEX < 0x02050000
    00141    meth.sq_item         = (intargfunc) &Array_item<T>;
    00142    meth.sq_length       = (inquiry) &Array_length<T>;
    00143 #else
    00144    meth.sq_item         = (ssizeargfunc) &Array_item<T>;
    00145    meth.sq_length       = (lenfunc) &Array_length<T>;
    00146 #endif
    00147    type.tp_as_sequence  = &meth;
    00148    PyObject* buf = PyBuffer_FromReadWriteMemory( ptr, size*sizeof(T) );
    00149    Py_INCREF( &type );
    00150    buf->ob_type = &type;
    00151    return buf;
    00152   }

static PyObject* GaudiPython::Helper::toIntArray | ( | void * | ptr,
|  | Py_ssize_t | size |
| ) |  |  | `[inline, static]`

Definition at line 153 of file Helpers.h.

    00153 { return toArray( (int*)    ptr , size ); }

static PyObject* GaudiPython::Helper::toShortArray | ( | void * | ptr,
|  | Py_ssize_t | size |
| ) |  |  | `[inline, static]`

Definition at line 154 of file Helpers.h.

    00154 { return toArray( (short*)  ptr , size ); }

static PyObject* GaudiPython::Helper::toFloatArray | ( | void * | ptr,
|  | Py_ssize_t | size |
| ) |  |  | `[inline, static]`

Definition at line 155 of file Helpers.h.

    00155 { return toArray( (float*)  ptr , size ); }

static PyObject* GaudiPython::Helper::toDoubleArray | ( | void * | ptr,
|  | Py_ssize_t | size |
| ) |  |  | `[inline, static]`

Definition at line 156 of file Helpers.h.

    00156 { return toArray( (double*) ptr , size ); }

template<class T>

static T* GaudiPython::Helper::toAddress | ( | std::vector< T > & | v | ) | `[inline, static]`

Definition at line 159 of file Helpers.h.

    00159                                          {
    00160     return &(*v.begin());
    00161   }

template<class T>

template double * GaudiPython::Helper::toAddress< double > | ( | void * | a | ) | `[inline, static]`

Definition at line 163 of file Helpers.h.

    00163                                  {
    00164     return (T*)a;
    00165   }

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

- /afs/cern.ch/sw/Gaudi/releases/GAUDI/GAUDI_v20r4/GaudiPython/GaudiPython/Helpers.h