// pulse and the response of the detector.
//
#include "AliFMDGainDA.h"
-#include "iostream"
-#include "fstream"
-#include "AliLog.h"
-#include "TF1.h"
-#include "TH1.h"
-#include "TMath.h"
-#include "TGraphErrors.h"
-#include "AliFMDParameters.h"
#include "AliFMDAltroMapping.h"
+#include "AliFMDParameters.h"
+#include "AliFMDCalibGain.h"
+#include "AliFMDDigit.h"
+#include "AliLog.h"
+#include <TFile.h>
+#include <TF1.h>
+#include <TH1S.h>
+#include <TGraphErrors.h>
+#include <TDatime.h>
+#include <TH2.h>
//_____________________________________________________________________
ClassImp(AliFMDGainDA)
//_____________________________________________________________________
AliFMDGainDA::AliFMDGainDA()
: AliFMDBaseDA(),
- fGainArray(),
fHighPulse(256),
fEventsPerChannel(10),
fCurrentPulse(10),
fCurrentChannel(10),
fNumberOfStripsPerChip(128),
fSummaryGains("GainsSummary","Summary of gains",51200,0,51200),
- fCurrentSummaryStrip(1)
+ fCurrentSummaryStrip(1),
+ fGainFMD1i(0),
+ fGainFMD2i(0),
+ fGainFMD2o(0),
+ fGainFMD3i(0),
+ fGainFMD3o(0),
+ fChi2FMD1i(0),
+ fChi2FMD2i(0),
+ fChi2FMD2o(0),
+ fChi2FMD3i(0),
+ fChi2FMD3o(0)
{
+ // Constructor
+ //
+ // Parameters:
+ // None
fCurrentPulse.Reset(0);
fCurrentChannel.Reset(0);
fOutputFile.open("gains.csv");
- fGainArray.SetOwner();
+ fDiagnosticsFilename = "diagnosticsGain.root";
}
//_____________________________________________________________________
AliFMDGainDA::AliFMDGainDA(const AliFMDGainDA & gainDA)
- : AliFMDBaseDA(gainDA),
- fGainArray(gainDA.fGainArray),
- fHighPulse(gainDA.fHighPulse),
- fEventsPerChannel(gainDA.fEventsPerChannel),
- fCurrentPulse(gainDA.fCurrentPulse),
- fCurrentChannel(gainDA.fCurrentChannel),
- fNumberOfStripsPerChip(gainDA.fNumberOfStripsPerChip),
- fSummaryGains(gainDA.fSummaryGains),
- fCurrentSummaryStrip(gainDA.fCurrentSummaryStrip)
+ : AliFMDBaseDA(gainDA),
+ fHighPulse(gainDA.fHighPulse),
+ fEventsPerChannel(gainDA.fEventsPerChannel),
+ fCurrentPulse(gainDA.fCurrentPulse),
+ fCurrentChannel(gainDA.fCurrentChannel),
+ fNumberOfStripsPerChip(gainDA.fNumberOfStripsPerChip),
+ fSummaryGains(gainDA.fSummaryGains),
+ fCurrentSummaryStrip(gainDA.fCurrentSummaryStrip),
+ fGainFMD1i(gainDA.fGainFMD1i),
+ fGainFMD2i(gainDA.fGainFMD2i),
+ fGainFMD2o(gainDA.fGainFMD2o),
+ fGainFMD3i(gainDA.fGainFMD3i),
+ fGainFMD3o(gainDA.fGainFMD3o),
+ fChi2FMD1i(gainDA.fChi2FMD1i),
+ fChi2FMD2i(gainDA.fChi2FMD2i),
+ fChi2FMD2o(gainDA.fChi2FMD2o),
+ fChi2FMD3i(gainDA.fChi2FMD3i),
+ fChi2FMD3o(gainDA.fChi2FMD3o)
{
+ // Copy Constructor
+ //
+ // Parameters:
+ // gainDA Object to copy from
fCurrentPulse.Reset(0);
fCurrentChannel.Reset(0);
}
//_____________________________________________________________________
AliFMDGainDA::~AliFMDGainDA()
{
+ // Destructor
+ //
+ // Parameters:
+ // None
}
//_____________________________________________________________________
void AliFMDGainDA::Init()
{
-
-
+ // Initialize
+ //
+ // Parameters:
+ // None
Int_t nEventsRequired = 0;
- //for(UShort_t det=1; det<=3;det++) {
- // UShort_t firstring = (det == 1 ? 1 : 0);
- // for(UShort_t iring = firstring; iring <=1;iring++) {
- // Char_t ring = (iring == 1 ? 'I' : 'O');
- // for(UShort_t board =0 ; board <=1; board++) {
- // Int_t idx = GetHalfringIndex(det,ring,board);
- for(Int_t idx = 0;idx<fEventsPerChannel.GetSize();idx++)
- {
-
- Int_t nEvents = 0;
- if(fPulseSize.At(idx))
- nEvents = (fPulseLength.At(idx)*fHighPulse) / fPulseSize.At(idx);
- fEventsPerChannel.AddAt(nEvents,idx);
- if(nEvents>nEventsRequired) nEventsRequired = nEvents * fNumberOfStripsPerChip;
-
- }
- //}
- // }
-
- //8 pulser values * 128 strips * 100 samples
-
-
+ for(Int_t idx = 0;idx<fEventsPerChannel.GetSize();idx++) {
+ Int_t nEvents = 0;
+ if(fPulseSize.At(idx))
+ nEvents = (fPulseLength.At(idx)*fHighPulse) / fPulseSize.At(idx);
+ fEventsPerChannel.AddAt(nEvents,idx);
+ if(nEvents>nEventsRequired)
+ nEventsRequired = nEvents * fNumberOfStripsPerChip;
+ }
SetRequiredEvents(nEventsRequired);
-
- TObjArray* detArray;
- TObjArray* ringArray;
- TObjArray* sectorArray;
+}
+
+//_____________________________________________________________________
+void AliFMDGainDA::InitContainer(TDirectory* dir)
+{
+ AliFMDBaseDA::InitContainer(dir);
for(UShort_t det=1;det<=3;det++) {
- detArray = new TObjArray();
- detArray->SetOwner();
- fGainArray.AddAtAndExpand(detArray,det);
- for (UShort_t ir = 0; ir < 2; ir++) {
+ UShort_t sr = (det == 1 ? 1 : 0);
+ for (UShort_t ir = sr; ir < 2; ir++) {
Char_t ring = (ir == 0 ? 'O' : 'I');
UShort_t nsec = (ir == 0 ? 40 : 20);
- UShort_t nstr = (ir == 0 ? 2 : 4);
- ringArray = new TObjArray();
- ringArray->SetOwner();
- detArray->AddAtAndExpand(ringArray,ir);
+ UShort_t nva = (ir == 0 ? 2 : 4);
for(UShort_t sec =0; sec < nsec; sec++) {
- sectorArray = new TObjArray();
- sectorArray->SetOwner();
- ringArray->AddAtAndExpand(sectorArray,sec);
- for(UShort_t strip = 0; strip < nstr; strip++) {
- TH1S* hChannel = new TH1S(Form("hFMD%d%c_%d_%d",det,ring,sec,strip),
- Form("hFMD%d%c_%d_%d",det,ring,sec,strip),
- 1024,0,1023);
+ TObjArray* sectorArray = GetSectorArray(det, ring, sec);
+ TObjArray* cache = new TObjArray(nva);
+ cache->SetName("Cache");
+ cache->SetOwner();
+ Int_t n = sectorArray->GetEntriesFast();
+ sectorArray->AddAtAndExpand(cache, n);
+ for(UShort_t va = 0; va < nva; va++) {
+ TH1S* hChannel = new TH1S(Form("FMD%d%c[%02d]_va%d",
+ det,ring,sec,va),
+ Form("FMD%d%c[%02d] VA%d Cache",
+ det,ring,sec,va),
+ 1024,-.5,1023.5);
hChannel->SetDirectory(0);
- sectorArray->AddAtAndExpand(hChannel,strip);
+ cache->AddAtAndExpand(hChannel,va);
}
}
}
}
//_____________________________________________________________________
-void AliFMDGainDA::AddChannelContainer(TObjArray* sectorArray,
+void AliFMDGainDA::AddChannelContainer(TObjArray* stripArray,
UShort_t det ,
Char_t ring,
UShort_t sec,
UShort_t strip)
{
- TGraphErrors* hChannel = new TGraphErrors();
- hChannel->SetName(Form("FMD%d%c[%02d,%03d]", det, ring, sec, strip));
- hChannel->SetTitle(Form("FMD%d%c[%02d,%03d] ADC vs DAC",
+ // Make a channel container
+ //
+ // Parameters:
+ // sectorArray Sectors
+ // det Detector number
+ // ring Ring identifier
+ // sec Sector number
+ // strip Strip number
+
+ AliFMDParameters* pars = AliFMDParameters::Instance();
+ UShort_t board = pars->GetAltroMap()->Sector2Board(ring, sec);
+ Int_t halfring = GetHalfringIndex(det,ring,board/16);
+ Int_t dPulse = fPulseSize.At(halfring);
+ Int_t nPulses = dPulse > 0 ? fHighPulse / dPulse : 0;
+
+ TGraphErrors* gChannel = new TGraphErrors(nPulses);
+ gChannel->SetName(Form("FMD%d%c[%02d,%03d]", det, ring, sec, strip));
+ gChannel->SetTitle(Form("FMD%d%c[%02d,%03d] ADC vs DAC",
det, ring, sec, strip));
- sectorArray->AddAtAndExpand(hChannel,strip);
+ stripArray->AddAtAndExpand(gChannel,0);
+}
+
+//_____________________________________________________________________
+void AliFMDGainDA::AddSectorSummary(TObjArray* sectorArray,
+ UShort_t det,
+ Char_t ring,
+ UShort_t sec,
+ UShort_t nStr)
+{
+ TH1F* summary = new TH1F("Summary", Form("Summary of gains in FMD%d%c[%02d]",
+ det, ring, sec),
+ nStr, -.5, nStr-.5);
+ summary->SetXTitle("Strip");
+ summary->SetYTitle("Gain [ADC/DAC]");
+ summary->SetDirectory(0);
+
+ Int_t n = sectorArray->GetEntriesFast();
+ sectorArray->AddAtAndExpand(summary, n);
}
//_____________________________________________________________________
-void AliFMDGainDA::FillChannels(AliFMDDigit* digit) {
+void AliFMDGainDA::FillChannels(AliFMDDigit* digit)
+{
+ // Fill data into histogram
+ //
+ // Parameters:
+ // digit Digit to get the data from
UShort_t det = digit->Detector();
Char_t ring = digit->Ring();
UShort_t sec = digit->Sector();
UShort_t strip = digit->Strip();
- //Strip is always seen as the first in a VA chip. All other strips are junk
- if(strip % fNumberOfStripsPerChip) return;
- Int_t vaChip = strip / fNumberOfStripsPerChip;
- TH1S* hChannel = GetChannelHistogram(det, ring, sec, vaChip);
+ //Strip is always seen as the first in a VA chip. All other strips are junk.
+ //Strips are counted from zero on even sectors and from 511 on odd sectors...
+
+ if((sec%2) && ((strip+1) % fNumberOfStripsPerChip)) return;
+ if(((sec+1)%2) && (strip % fNumberOfStripsPerChip)) return;
+ UShort_t vaChip = strip / fNumberOfStripsPerChip;
+ TH1S* hChannel = GetChannelHistogram(det, ring, sec, vaChip);
hChannel->Fill(digit->Counts());
UpdatePulseAndADC(det,ring,sec,strip);
}
+//_____________________________________________________________________
+void AliFMDGainDA::MakeSummary(UShort_t det, Char_t ring)
+{
+ //
+ // Create summary hists for FMD gains and chi2 of the fits
+ //
+ switch (det) {
+ case 1:
+ fGainFMD1i = MakeSummaryHistogram("gain", "Gains", det, ring);
+ fChi2FMD1i = MakeSummaryHistogram("chi2", "#Chi^{2}/NDF", det, ring);
+ break;
+ case 2:
+ switch (ring) {
+ case 'I': case 'i':
+ fGainFMD2i = MakeSummaryHistogram("gain", "Gains", det, ring);
+ fChi2FMD2i = MakeSummaryHistogram("chi2", "#Chi^{2}/NDF", det, ring);
+ break;
+ case 'O': case 'o':
+ fGainFMD2o = MakeSummaryHistogram("gain", "Gains", det, ring);
+ fChi2FMD2o = MakeSummaryHistogram("chi2", "#Chi^{2}/NDF", det, ring);
+ break;
+ }
+ break;
+ case 3:
+ switch (ring) {
+ case 'I': case 'i':
+ fGainFMD3i = MakeSummaryHistogram("gain", "Gains", det, ring);
+ fChi2FMD3i = MakeSummaryHistogram("chi2", "#Chi^{2}/NDF", det, ring);
+ break;
+ case 'O': case 'o':
+ fGainFMD3o = MakeSummaryHistogram("gain", "Gains", det, ring);
+ fChi2FMD3o = MakeSummaryHistogram("chi2", "#Chi^{2}/NDF", det, ring);
+ break;
+ }
+ break;
+ }
+}
+
//_____________________________________________________________________
void AliFMDGainDA::Analyse(UShort_t det,
Char_t ring,
UShort_t sec,
- UShort_t strip) {
+ UShort_t strip)
+{
+ // Analyse result of a single strip
+ //
+ // Parameters:
+ // det Detector number
+ // ring Ring identifier
+ // sec Sector number
+ // strip Strip number
TGraphErrors* grChannel = GetChannel(det,ring,sec,strip);
if(!grChannel->GetN()) {
- // AliWarning(Form("No entries for FMD%d%c, sector %d, strip %d",
- // det, ring , sec, strip));
+ AliWarning(Form("No entries for FMD%d%c, sector %d, strip %d",
+ det, ring , sec, strip));
return;
}
TF1 fitFunc("fitFunc","pol1",-10,280);
<< chi2ndf <<"\n";
//due to RCU trouble, first strips on VAs are excluded
- if(strip%128 != 0) {
-
- fSummaryGains.SetBinContent(fCurrentSummaryStrip,fitFunc.GetParameter(1));
- fSummaryGains.SetBinError(fCurrentSummaryStrip,fitFunc.GetParError(1));
+ // if(strip%128 != 0) {
- fCurrentSummaryStrip++;
+ fSummaryGains.SetBinContent(fCurrentSummaryStrip,fitFunc.GetParameter(1));
+ fSummaryGains.SetBinError(fCurrentSummaryStrip,fitFunc.GetParError(1));
+
+ fCurrentSummaryStrip++;
+
+ TH2* hGain = 0;
+ TH2* hChi2 = 0;
+ switch (det) {
+ case 1: hGain = fGainFMD1i; hChi2 = fChi2FMD1i; break;
+ case 2:
+ switch (ring) {
+ case 'I': hGain = fGainFMD2i; hChi2 = fChi2FMD2i; break;
+ case 'O': hGain = fGainFMD2o; hChi2 = fChi2FMD2o; break;
+ }
+ break;
+ case 3:
+ switch (ring) {
+ case 'I': hGain = fGainFMD3i; hChi2 = fChi2FMD3i; break;
+ case 'O': hGain = fGainFMD3o; hChi2 = fChi2FMD3o; break;
+ }
+ break;
+ }
+ if (hGain && hChi2) {
+ Int_t bin = hGain->FindBin(sec, strip);
+ hGain->SetBinContent(bin, gain);
+ hGain->SetBinError(bin, error);
+ hChi2->SetBinContent(bin, chi2ndf);
}
+
+ // }
if(fSaveHistograms) {
- gDirectory->cd(GetSectorPath(det,ring, sec, kTRUE));
-
- TH1F* summary = dynamic_cast<TH1F*>(gDirectory->Get("Summary"));
- if (!summary) {
- Int_t nStr = (ring == 'I' ? 512 : 256);
- summary = new TH1F("Summary", Form("Summary of gains in FMD%d%c[%02d]",
- det, ring, sec),
- nStr, -.5, nStr-.5);
- summary->SetXTitle("Strip");
- summary->SetYTitle("Gain [ADC/DAC]");
- summary->SetDirectory(gDirectory);
- }
+ TH1F* summary = GetSectorSummary(det, ring, sec);
summary->SetBinContent(strip+1, fitFunc.GetParameter(1));
summary->SetBinError(strip+1, fitFunc.GetParError(1));
-
- gDirectory->cd(GetStripPath(det,ring,sec,strip, kTRUE));
- grChannel->SetName(Form("FMD%d%c[%02d,%03d]",det,ring,sec,strip));
- // grChannel->SetDirectory(gDirectory);
- grChannel->Write();
- // grChannel->Write(Form("grFMD%d%c_%d_%d",det,ring,sec,strip));
}
}
//_____________________________________________________________________
void AliFMDGainDA::Terminate(TFile* diagFile)
{
- diagFile->cd();
- fSummaryGains.Write();
+ // End of file
+ //
+ // Parameters:
+ // None
+ if(diagFile) {
+ diagFile->cd();
+ fSummaryGains.Write();
+ }
}
//_____________________________________________________________________
void AliFMDGainDA::WriteHeaderToFile()
{
+ // Write header to the output file
+ //
+ // Parameters:
+ // None
AliFMDParameters* pars = AliFMDParameters::Instance();
fOutputFile.write(Form("# %s \n",pars->GetGainShuttleID()),9);
+ TDatime now;
+ fOutputFile << "# This file created from run # " << fRunno
+ << " @ " << now.AsString() << std::endl;
fOutputFile.write("# Detector, "
"Ring, "
"Sector, "
"Strip, "
"Gain, "
"Error, "
- "Chi2/NDF \n",56);
-
+ "Chi2/NDF \n",56);
}
//_____________________________________________________________________
TH1S* AliFMDGainDA::GetChannelHistogram(UShort_t det,
Char_t ring,
UShort_t sec,
- UShort_t strip)
+ UShort_t va)
{
-
- UShort_t Ring = 1;
- if(ring == 'O')
- Ring = 0;
-
-
- TObjArray* detArray = static_cast<TObjArray*>(fGainArray.At(det));
- TObjArray* ringArray = static_cast<TObjArray*>(detArray->At(Ring));
- TObjArray* secArray = static_cast<TObjArray*>(ringArray->At(sec));
- TH1S* hChannel = static_cast<TH1S*>(secArray->At(strip));
+ // Get the current histogram of a single strip
+ //
+ // Parameters:
+ // det Detector number
+ // ring Ring identifier
+ // sec Sector number
+ // va VA number
+ TObjArray* secArray = GetSectorArray(det, ring, sec);
+ Int_t n = secArray->GetEntriesFast();
+ TObjArray* cache = static_cast<TObjArray*>(secArray->At(n-1));
+ TH1S* hChannel = static_cast<TH1S*>(cache->At(va));
return hChannel;
}
UShort_t sec,
UShort_t strip)
{
- UShort_t iring = (ring == 'O' ? 0 : 1);
- TObjArray* detArray = static_cast<TObjArray*>(fDetectorArray.At(det));
- TObjArray* ringArray = static_cast<TObjArray*>(detArray->At(iring));
- TObjArray* secArray = static_cast<TObjArray*>(ringArray->At(sec));
- TGraphErrors* hChannel = static_cast<TGraphErrors*>(secArray->At(strip));
+ // Get the graph of a single strip
+ //
+ // Parameters:
+ // det Detector number
+ // ring Ring identifier
+ // sec Sector number
+ // strip Strip number
+ TObjArray* stripArray = GetStripArray(det, ring, sec, strip);
+ TGraphErrors* hChannel = static_cast<TGraphErrors*>(stripArray->At(0));
return hChannel;
}
+//_____________________________________________________________________
+TH1F* AliFMDGainDA::GetSectorSummary(UShort_t det,
+ Char_t ring,
+ UShort_t sec)
+{
+ TObjArray* secArray = GetSectorArray(det, ring, sec);
+ Int_t n = secArray->GetEntriesFast();
+ return static_cast<TH1F*>(secArray->At(n-2)); // Cache added later
+}
+
//_____________________________________________________________________
void AliFMDGainDA::UpdatePulseAndADC(UShort_t det,
Char_t ring,
UShort_t sec,
UShort_t strip)
{
+ // Go to next pulse size
+ //
+ // Parameters:
+ // det Detector number
+ // ring Ring identifier
+ // sec Sector number
+ // strip Strip number
- AliFMDParameters* pars = AliFMDParameters::Instance();
- // UInt_t ddl, board,chip,ch;
- UShort_t board = pars->GetAltroMap()->Sector2Board(ring, sec);
- // pars->Detector2Hardware(det,ring,sec,strip,ddl,board,chip,ch);
- /// pars->GetAltroMap()->Strip2Channel(
- Int_t halfring = GetHalfringIndex(det,ring,board/16);
+ AliFMDParameters* pars = AliFMDParameters::Instance();
+ UShort_t board = pars->GetAltroMap()->Sector2Board(ring, sec);
+ Int_t halfring = GetHalfringIndex(det,ring,board/16);
if(GetCurrentEvent()> (fNumberOfStripsPerChip*fEventsPerChannel.At(halfring)))
return;
- if(strip % fNumberOfStripsPerChip) return;
+
+ if ((sec % 2) && ((strip+1) % fNumberOfStripsPerChip)) return;
+ if (((sec + 1) % 2) && (strip % fNumberOfStripsPerChip)) return;
+
if(((GetCurrentEvent()) % fPulseLength.At(halfring))
&& GetCurrentEvent() > 0) return;
- Int_t vaChip = strip/fNumberOfStripsPerChip;
+ Int_t vaChip = strip/fNumberOfStripsPerChip;
TH1S* hChannel = GetChannelHistogram(det,ring,sec,vaChip);
if(!hChannel->GetEntries()) {
hChannel->GetXaxis()->SetRange(firstBin,lastBin);
- Int_t channelNumber = (strip +
- (GetCurrentEvent()-1)
- / ((fPulseLength.At(halfring)*fHighPulse)
- / fPulseSize.At(halfring)));
-
- TGraphErrors* channel = GetChannel(det,ring,sec,channelNumber);
-
+ Int_t channelOff = ((GetCurrentEvent()-1)
+ / ((fPulseLength.At(halfring)*fHighPulse)
+ / fPulseSize.At(halfring)));
+ Int_t channelNo = (strip + ((sec % 2 == 1) ? -1 : 1) * channelOff);
+ TGraphErrors* channel = GetChannel(det,ring,sec,channelNo);
+
channel->SetPoint(fCurrentPulse.At(halfring),pulse,mean);
channel->SetPointError(fCurrentPulse.At(halfring),0,rms);
if(fSaveHistograms) {
- gDirectory->cd(GetStripPath(det,ring,sec,channelNumber));
- hChannel->Write(Form("%s_pulse_%03d",hChannel->GetName(),(Int_t)pulse));
-
+ TH1S* out =
+ static_cast<TH1S*>(hChannel->Clone(Form("FMD%d%c[%02d,%03d]_0x%02x",
+ det, ring, sec, channelNo,
+ int(pulse))));
+ out->SetTitle(Form("FMD%d%c[%02d,%03d] DAC=0x%02x (%3d)",
+ det, ring, sec, channelNo, int(pulse), int(pulse)));
+ out->SetDirectory(0);
+ TObjArray* arr = GetStripArray(det, ring, sec, channelNo);
+ arr->AddAtAndExpand(out, fCurrentPulse.At(halfring)+1);
}
hChannel->Reset();
//_____________________________________________________________________
void AliFMDGainDA::ResetPulseAndUpdateChannel()
{
+ // Reset all
+ //
+ // Parameters:
+ // None
fCurrentPulse.Reset(0);
}
//_____________________________________________________________________
void AliFMDGainDA::FinishEvent()
{
+ // End of event
+ //
+ // Parameters:
+ // None
for(UShort_t det=1; det<=3;det++) {
UShort_t firstring = (det == 1 ? 1 : 0);
for(UShort_t iring = firstring; iring <=1;iring++) {
for(UShort_t board =0 ; board <=1; board++) {
Int_t idx = GetHalfringIndex(det,ring,board);
- if( !fPulseLength.At(idx) || !fEventsPerChannel.At(idx))
+ if(!fPulseLength.At(idx) || !fEventsPerChannel.At(idx))
continue;
- if(GetCurrentEvent()>0 && ((GetCurrentEvent() % fPulseLength.At(idx)) == 0))
+ if(GetCurrentEvent()>0 &&
+ ((GetCurrentEvent() % fPulseLength.At(idx)) == 0))
fCurrentPulse.AddAt(fCurrentPulse.At(idx)+1,idx);
- if(GetCurrentEvent()>0 && ((GetCurrentEvent()) % fEventsPerChannel.At(idx)) == 0)
+ if(GetCurrentEvent()>0 &&
+ ((GetCurrentEvent()) % fEventsPerChannel.At(idx)) == 0)
fCurrentPulse.AddAt(0,idx);
}
}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff