Dear Root-ers,
Below are two macro's. The first one creates a root file with
a directory and a tree and the second one reads it many times.
This should simulate a 'real' application where several root
files contain directories in which tree's have been created with
the same name.
My problem is that I can not figure out how to clean up after,
getting the data from a file. The "delete dir;" is resulting
in a segmentation violation. Removing this statement makes
root use more and more memory.
Is there a way to avoid this memory leak ?
best regards,
Eddy
{
gROOT->Reset();
Int_t split = 0;
Int_t bsize = 32000;
TFile *hfile = new TFile("foo.root","RECREATE");
TDirectory *dir = hfile->mkdir("dir");
dir->cd();
TTree *tree = new TTree( "T", "this is a tree" );
Int_t tmp = 100;
TBranch *branch = tree->Branch("B",&tmp,"tmp/I",bsize);
tree->Fill();
hfile->Write();
hfile->Close();
delete hfile;
}
{
for (Int_t i=1; i >0; i++)
{
TFile *hfile = new TFile("foo.root","READ");
TDirectory *dir = (TDirectory *) hfile->Get("dir");
dir->cd();
TTree *tree = (TTree*) dir->Get("T");
Int_t tmp;
tree->SetBranchAddress("B",&tmp);
tree->GetEvent(0);
printf("i tmp = %d %d\n",i,tmp);
delete tree;
delete dir;
hfile->Close();
delete hfile;
}
}
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