Rene Brun
Thomas Eberl wrote:
>
> Dear rooters,
>
> For the following code I have used the recipe given in TMapFile source
> about SetMapAddress. Still the result is:
> *** Break *** segmentation violation
> Aborted
>
> Why do they not coexist ? The memory areas are not overlapping.
>
> The code is:
> #include <TROOT.h>
> #include <TMapFile.h>
> #include <TMatrix.h>
>
> extern void InitGui();
> VoidFuncPtr_t initfuncs[] = { InitGui, 0 };
>
> TROOT root("Producer", "Producer for shared mem", initfuncs);
>
> int main(int argc, char **argv)
>
> {
>
> TMapFile::SetMapAddress(0x40a3a000);
> TMapFile * mfile = 0;
> mfile = TMapFile::Create("RICHonline.map","RECREATE", 1000000,
> "Demo memory mapped file with
> histograms");
> TMapFile::SetMapAddress(0x40b2f000);
> TMapFile * mfile1 = 0;
> mfile1 = TMapFile::Create("RICHControl.map","RECREATE", 1000000,
> "Demo memory mapped file with histograms");
>
>
> Int_t n = 2;
> TMatrix mat(0,n-1,0,n-1);
> TMatrix * p_mat = &mat;
> for (int i=0;i<n;i++){
> for (int j=0;j<n;j++){
> mat(i,j) = 5.;
> }
> }
>
>
> mfile1->TMapFile::Add(p_mat,"TMatrix");
> mfile1->TMapFile::Update();
> mfile->TMapFile::Add(p_mat,"TMatrix");
> mfile->TMapFile::Update();
>
> p_mat -> Print();
>
> mfile1->Print();
> mfile1->ls();
> mfile->Print();
> mfile->ls();
>
> return 0;
> }
>
> --
> Thomas Eberl Phone: (+49 89) 289 1 2425
> Physik-Department E12, Technische Universitaet Muenchen
> James-Franck-Strasse *** 85748 Garching b. Muenchen
> Email: Thomas.Eberl@physik.tu-muenchen.de