Gaudi Framework, version v20r2
	Generated: 18 Jul 2008

PoolDbIOHandler.cpp File Reference

#include "GaudiPoolDb/PoolDbIOHandler.h"
#include "GaudiKernel/ObjectContainerBase.h"
#include "GaudiKernel/ContainedObject.h"
#include "GaudiKernel/LinkManager.h"
#include "GaudiKernel/IRegistry.h"
#include "GaudiKernel/MsgStream.h"
#include "GaudiKernel/SmartRef.h"
#include <stdexcept>
#include <iostream>
#include "TROOT.h"
#include "TFile.h"
#include "TClass.h"
#include "TStreamerInfo.h"
#include "Cintex/Cintex.h"
#include "POOLCore/Token.h"
#include "POOLCore/Reference.h"
#include "StorageSvc/DbReflex.h"
#include "StorageSvc/DataCallBack.h"
#include "StorageSvc/DbDataHandlerGuard.h"

Include dependency graph for PoolDbIOHandler.cpp:

Go to the source code of this file.

Namespaces
namespace	ROOT
namespace	ROOT::Cintex
namespace	pool
namespace	GaudiPoolDb
Functions
bool	ROOT::Cintex::IsTypeOf (Type &typ, const std::string &base_name)
const std::string	pool::typeName (const std::type_info &typ)
static std::vector< DataObject ** > &	currentObject ()
void	pushCurrentDataObject (DataObject **pobjAddr)
void	popCurrentDataObject ()
static void	getOID_40000 (TBuffer &b, TClass *cl, Token::OID_t &oid)
template<class T>
static bool	makeStreamer (MsgStream &log)
bool	GaudiPoolDb::patchStreamers (MsgStream &log)
Variables
static DataObject *	s_objPtr = 0
static DataObject **	s_currObj = &s_objPtr
static const DataObject *	last_link_object = 0
static int	last_link_hint = -1

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Function Documentation

static std::vector<DataObject**>& currentObject

(

)

[static]

Definition at line 47 of file PoolDbIOHandler.cpp.

References std::auto_ptr< _Tp >::get().

Referenced by popCurrentDataObject(), and pushCurrentDataObject().

                                                {
  static std::auto_ptr<std::vector<DataObject**> > s_current;
  if ( 0 == s_current.get() )  {
    s_current = std::auto_ptr<std::vector<DataObject**> >(new std::vector<DataObject**>());
  }
  return *(s_current.get());
}

static void getOID_40000	(	TBuffer &	b,
		TClass *	cl,
		Token::OID_t &	oid
	)			[static]

Definition at line 208 of file PoolDbIOHandler.cpp.

References count(), std::pair< _T1, _T2 >::first, and std::pair< _T1, _T2 >::second.

Referenced by PoolDbIOHandler< T >::get().

                                                                  {
  unsigned long loid[2];
  UInt_t start, count, tmp;
  // read the class version from the buffer
  /* Version_t vsn = */ b.ReadVersion(&start, &count, 0);
  switch(count) {
  case 22:              // These tokens were written as pair<long,long>
    b >> tmp;           //
    b.ReadFastArray(loid,2); // There was a bug in POOL....
    oid.first = loid[0];
    oid.second = loid[1];
    break;              // see TBuffer::ReadFastArray(ulong*, int)
  case 14:              // Normal case: version:checksum+8 Bytes
    b >> tmp;           //
  case 10:              // Normal case: version:checksum+8 Bytes
  case 8:               // Without checksum and version
  default:              // No better idea
    b.ReadFastArray(&oid.first, 2);
    break;
  }
  // Check that the buffer position correesponds to the byte count
  b.CheckByteCount(start, count, cl);
}

template<class T>

static bool makeStreamer

(

MsgStream &

log

)

[static]

Definition at line 287 of file PoolDbIOHandler.cpp.

References c, std::basic_string< _CharT, _Traits, _Alloc >::c_str(), MSG::DEBUG, endmsg(), MSG::ERROR, Gaudi::Units::s, and GaudiDict::typeName().

                                                             {
  std::string cl_name = typeName(typeid(T));
  ROOT::Reflex::Type t = ROOT::Reflex::Type::ByName(cl_name);
  if ( t )  {
    TClass* c = gROOT->GetClass(cl_name.c_str());
    if ( c ) {
      TClassStreamer* s = new PoolDbIOHandler<T>(t,c);
      c->AdoptStreamer(s);
      log << MSG::DEBUG << "Installed IOHandler for class " << cl_name << endmsg;
      return true;
    }
    else if ( !c )  {
      log << MSG::ERROR << "[No ROOT TClass] Failed to install IOHandler for class " << cl_name << endmsg;
    }
  }
  else  {
    log << MSG::ERROR << "[No Reflection Type] Failed to install IOHandler for class " << cl_name << endmsg;
  }
  return false;
}

void popCurrentDataObject

(

)

Definition at line 63 of file PoolDbIOHandler.cpp.

References c, currentObject(), last_link_hint, last_link_object, s_currObj, and s_objPtr.

                            {
  static std::vector<DataObject**>& c = currentObject();
  last_link_object = 0;
  last_link_hint   = -1;
  switch(c.size())  {
    case 0:
      s_currObj = c.back();
      c.pop_back();
      break;
    default:
      s_currObj = &s_objPtr;
      break;
  }
}

void pushCurrentDataObject

(

DataObject **

pobjAddr

)

Definition at line 55 of file PoolDbIOHandler.cpp.

References c, currentObject(), last_link_hint, last_link_object, s_currObj, and s_objPtr.

                                                  {
  static std::vector<DataObject**>& c = currentObject();
  c.push_back(pobjAddr);
  s_currObj = pobjAddr ? pobjAddr : &s_objPtr;
  last_link_object = 0;
  last_link_hint   = -1;
}

---

Variable Documentation

int last_link_hint = -1 [static]

Definition at line 45 of file PoolDbIOHandler.cpp.

Referenced by popCurrentDataObject(), pushCurrentDataObject(), and PoolDbIOHandler< T >::put().

const DataObject* last_link_object = 0 [static]

Definition at line 44 of file PoolDbIOHandler.cpp.

Referenced by popCurrentDataObject(), pushCurrentDataObject(), and PoolDbIOHandler< T >::put().

DataObject** s_currObj = &s_objPtr [static]

Definition at line 43 of file PoolDbIOHandler.cpp.

Referenced by PoolDbIOHandler< T >::get(), popCurrentDataObject(), pushCurrentDataObject(), and PoolDbIOHandler< T >::put().

DataObject* s_objPtr = 0 [static]

Definition at line 42 of file PoolDbIOHandler.cpp.

Referenced by popCurrentDataObject(), and pushCurrentDataObject().

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