Hi Henk,
You forgot to build the dictionary for your class Delay.
I have instrumented your class with the necessary ClassDef and ClassImp
macros. See my installation script, and your files.
I also suggest you look at our example with Makefile in
$ROOTSYS/test/Event
Rene Brun
___________makefile_______
rootcint -f DelayCint.cxx -c Delay.h DelayLinkDef.h
g++ -o Delay -fno-rtti -fno-exceptions -fPIC -I$ROOTSYS/include \
DelayCint.cxx FillDelay.cxx Delay.cxx -L$ROOTSYS/lib \
-lNew -lBase -lCint -lClib -lCont -lFunc -lGraf -lGraf3d -lHist -lMatrix
\
-lMeta -lMinuit -lNet -lProof -lPostscript -lTree -lUnix -lZip -lg++ -lm
\
-ldl -rdynamic
___________file FillDelay.cxx____________
#include "TROOT.h"
#include "TTree.h"
#include "TFile.h"
#include "TBranch.h"
#include "Delay.h"
main (int argc, char **argv) {
TROOT simple ("Simple", "Example");
Int_t split = 0;
Int_t bsize = 64000;
Delay *delay = 0;
TFile *hfile = new TFile ("Test.root", "RECREATE");
TTree *tree = new TTree ("tree", "Example");
delay = new Delay();
tree->Branch ("delay", "Delay", &delay, bsize, split);
for (Int_t i=0 ; i<10 ; i++) {
delay = new Delay();
delay->SetPacketId(i);
tree->Fill();
delete delay;
}
hfile->Write ();
hfile->Close ();
return 0;
}
____________file Delay.h__________________________
#include "TObject.h"
#include "TClonesArray.h"
#include "TH1.h"
#include "TMath.h"
#include <iostream.h>
class Delay : public TObject {
private:
UInt_t PacketId; // Identifier of the packet
Int_t SourceId; // ID# of the sending testbox
Int_t SourcePort; // Port from which the packet was sent
Int_t TargetId; // ID# of the receiving testbox
Int_t TargetPort; // Port to which the packet was sent
Int_t PacketSize; // Packet size in bytes
Double_t ArrivalTime; // -1.0 if undefined
Double_t PacketDelay; // Delay in ms, -1.0 if undefined
UInt_t SourceClock; // Sending and receiving clock status
UInt_t TargetClock;
Int_t Nhops; // Number of hops, -1 if unknown
Int_t Routeid; // Routing vector number, -1 if unknown
Float_t SourceNtp; // NTP error estimates (empty at the
moment)
Float_t TargetNtp;
public:
Delay ();
virtual ~Delay();
void SetPacketId (Int_t n) {PacketId = n;}
ClassDef(Delay,1)
};
__________________file Delay.cxx______________________
#include "Delay.h"
ClassImp(Delay)
Delay::Delay() {
cout << "Contructor for Delay\n";
}
Delay::~Delay() {
}
___________file DelayLinkDef.h__________________
#ifdef __CINT__
#pragma link off all globals;
#pragma link off all classes;
#pragma link off all functions;
#pragma link C++ class Delay;
#endif
Henk Uijterwaal wrote:
>
> I'm completely new to Root, so this is probably something trivial or a
> FAQ
> but...
>
> ... I'm trying to fill a Tree using this piece of code, derived from the
> examples
> in the 2.00/13 distribution:
>
> [oak:520] cat FillDelay.C
> #include "TROOT.h"
> #include "TTree.h"
> #include "TFile.h"
> #include "TBranch.h"
> #include "Delay.h"
>
> main (int argc, char **argv) {
> TROOT simple ("Simple", "Example");
> Int_t split = 0;
> Int_t bsize = 64000;
> Delay *delay = 0;
> TFile *hfile = new TFile ("Test.root", "RECREATE");
> TTree *tree = new TTree ("tree", "Example");
> delay = new Delay();
> tree->Branch ("delay", "Delay", &delay, bsize, split);
> for (Int_t i=0 ; i<10 ; i++) {
> delay = new Delay();
> delay->SetPacketId(i);
> tree->Fill();
> delete delay;
> }
> hfile->Write ();
> hfile->Close ();
> return 0;
> }
>
> This compiles, but then core-dumps:
>
> [oak:524] make
> g++ -O -Wall -fPIC -I/spool/henk/source/root/include -c FillDelay.C
> FillDelay.C: In function `int main(int, char **)':
> FillDelay.C:9: warning: unused parameter `int argc'
> FillDelay.C:9: warning: unused parameter `char ** argv'
> g++ -O -Wall -fPIC -I/spool/henk/source/root/include -c Delay.C
> g++ -o FillDelay -g FillDelay.o Delay.o -L/spool/henk/source/root/lib
> -lNew -lBase -lCint -lClib -lCont -lFunc -lGraf -lGraf3d -lHist -lMatrix
> -lMeta -lMinuit -lNet -lProof -lPostscript -lTree -lUnix -lZip -lg++ -lm
> -ldl -rdynamic
> [oak:525] FillDelay
> Contructor for Delay
> Contructor for Delay
> Error in <TFile::TFile>: file does not exist
>
> *** Break *** segmentation violation
> Abort (core dumped)
>
> As far as I can see, the core-dump occurs in the tree->Branch statement.
>
> Any ideas what might be wrong here?
>
> Henk
>
> ps. I'm running Linux 2.0.35:
>
> [oak:526] uname -a
> Linux oak.ripe.net 2.0.35 #1 Fri Sep 4 15:13:37 MET DST 1998 i586
> unknown
>
> Delay.h and Delay.C are:
>
> ---- Delay.h ----
> #include "TObject.h"
> #include "TClonesArray.h"
> #include "TH1.h"
> #include "TMath.h"
>
> #include <iostream.h>
>
> class Delay : public TObject {
>
> private:
> UInt_t PacketId; // Identifier of the packet
> Int_t SourceId; // ID# of the sending testbox
> Int_t SourcePort; // Port from which the packet was sent
> Int_t TargetId; // ID# of the receiving testbox
> Int_t TargetPort; // Port to which the packet was sent
> Int_t PacketSize; // Packet size in bytes
> Double_t ArrivalTime; // -1.0 if undefined
> Double_t PacketDelay; // Delay in ms, -1.0 if undefined
> UInt_t SourceClock; // Sending and receiving clock status
> UInt_t TargetClock;
> Int_t Nhops; // Number of hops, -1 if unknown
> Int_t Routeid; // Routing vector number, -1 if unknown
> Float_t SourceNtp; // NTP error estimates (empty at the
> moment)
> Float_t TargetNtp;
>
> public:
> Delay ();
> virtual ~Delay();
> void SetPacketId (Int_t n) {PacketId = n;}
> };
>
> ---- Delay.C ----
> #include "Delay.h"
>
> Delay::Delay() {
> cout << "Contructor for Delay\n";
> }
>
> Delay::~Delay() {
> }
>
> --
> ------------------------------------------------------------------------------
> Henk Uijterwaal Email: henk.uijterwaal@ripe.net
> RIPE Network Coordination Centre WWW: http://www.ripe.net/home/henk
> Singel 258 Phone: +31.20.535-4414, Fax -4445
> 1016 AB Amsterdam Home: +31.20.4195305
> The Netherlands Mobile: +31.6.55861746 NOTE NEW
> NUMBER!
> ------------------------------------------------------------------------------
>
> %DCL-E-NOCFFE, unable to locate coffee - keyboard input suspended.
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