New methods to read and write trailers. New method to read whole altro channel
[u/mrichter/AliRoot.git] / RAW / AliRawRootdDB.cxx
CommitLineData
a197a4ce 1// @(#)alimdc:$Name$:$Id$
2// Author: Fons Rademakers 26/11/99
3
4/**************************************************************************
5 * Copyright(c) 1998-2003, ALICE Experiment at CERN, All rights reserved. *
6 * *
7 * Author: The ALICE Off-line Project. *
8 * Contributors are mentioned in the code where appropriate. *
9 * *
10 * Permission to use, copy, modify and distribute this software and its *
11 * documentation strictly for non-commercial purposes is hereby granted *
12 * without fee, provided that the above copyright notice appears in all *
13 * copies and that both the copyright notice and this permission notice *
14 * appear in the supporting documentation. The authors make no claims *
15 * about the suitability of this software for any purpose. It is *
16 * provided "as is" without express or implied warranty. *
17 **************************************************************************/
18
19//////////////////////////////////////////////////////////////////////////
20// //
21// AliRawRootdDB //
22// //
23//////////////////////////////////////////////////////////////////////////
24
25#include <TSystem.h>
26
a197a4ce 27#include "AliRawRootdDB.h"
28
29
30ClassImp(AliRawRootdDB)
31
32
33//______________________________________________________________________________
a109e73e 34AliRawRootdDB::AliRawRootdDB(AliRawEvent *event,
a109e73e 35 AliESD *esd,
e10815f1 36 Int_t compress,
37 const char* fileName)
38 : AliRawDB(event, esd, compress, fileName)
a197a4ce 39{
40 // Create a new raw DB that will be accessed via rootd daemon.
41
e10815f1 42 if (fRawDB) fRawDB->UseCache(50, 0x200000); //0x100000 = 1MB)
a197a4ce 43}
44
45//______________________________________________________________________________
46const char *AliRawRootdDB::GetFileName() const
47{
48 // Return filename based on hostname and date and time. This will make
49 // each file unique. Also the directory will be made unique for each
50 // day by adding the date to the fs. Assumes there is always enough
51 // space on the device.
52
53 static TString fname;
54
e10815f1 55 TString fs = fFS1;
a197a4ce 56 TDatime dt;
57
58#if 0
59 // make a new subdirectory for each day
60 fs += "/adc-";
61 fs += dt.GetDate();
62
63 Long_t id, size, flags, time;
64 if (gSystem->GetPathInfo(fs, &id, &size, &flags, &time) == 1) {
65 // directory does not exist, create it
66 if (gSystem->mkdir(fs, kTRUE) == -1) {
67 Error("GetFileName", "cannot create dir %s, using %s", fs.Data(),
e10815f1 68 fFS1.Data());
69 fs = fFS1;
a197a4ce 70 }
71 }
72 // FIXME: should check if fs is a directory
73#endif
74
75 TString hostname = gSystem->HostName();
76 Int_t pos;
77 if ((pos = hostname.Index(".")) != kNPOS)
78 hostname.Remove(pos);
79
80 fname = fs + "/" + hostname + "_";
81 fname += dt.GetDate();
82 fname += "_";
83 fname += dt.GetTime();
84 fname += ".root";
85
86 return fname;
87}
88
89//______________________________________________________________________________
f07ec911 90Int_t AliRawRootdDB::Close()
a197a4ce 91{
92 // Close raw rootd DB.
93
f07ec911 94 if (!fRawDB) return 0;
95
96 if (!fRawDB->IsOpen()) return 0;
a197a4ce 97
98 fRawDB->cd();
99
100 // Write the tree.
f07ec911 101 Bool_t error = kFALSE;
102 if (fTree->Write() == 0)
103 error = kTRUE;
104 if (fESDTree)
105 if (fESDTree->Write() == 0)
106 error = kTRUE;
a197a4ce 107
108 // Close DB, this also deletes the fTree
109 fRawDB->Close();
110
f07ec911 111 Int_t filesize = fRawDB->GetEND();
112
a197a4ce 113#if 0
114 // can use services of TFTP
e10815f1 115 if (fDeleteFiles)
a197a4ce 116 gSystem->Exec(Form("rfrm %s", fRawDB->GetName()));
117#endif
118
119 delete fRawDB;
120 fRawDB = 0;
f07ec911 121 if(!error)
122 return filesize;
123 else
124 return -1;
a197a4ce 125}