1 // $Id: StStreamFile.cxx,v 1.4 2010/01/07 17:37:59 fine Exp $
2 //
3 // $Log: StStreamFile.cxx,v $
4 // Revision 1.4 2010/01/07 17:37:59 fine
5 // introduce closeFileSignal to process several DAT files at once. RT # 1794
6 //
7 // Revision 1.3 2010/01/06 20:42:26 fine
8 // Fix type EventNumber shoould be RunNumber . Thanks Akio
9 //
10 // Revision 1.2 2009/10/13 15:44:59 fine
11 // add the method to provide the error message
12 //
13 // Revision 1.1 2009/10/12 04:21:06 fine
14 // Add abstract STAR iostream-base file interface
15 //
16 //
17
18 /***************************************************************************
19 * \Author: Valeri Fine (fine@bnl.gov)
20 \date 10-Oct-2009
21 * Description: Trigger Data file (run*.*.dat) reader
22 **************************************************************************/
23
24 #include "StStreamFile.h"
25 #include <iostream>
26
27 //__________________________________________________________________________
28 StStreamFile::~StStreamFile() { close(); }
29 //__________________________________________________________________________
30 void StStreamFile::open(const char *fileName, ios_base::openmode mode)
31 {
32 if (fFilename==fileName && is_open() ) {
33 fStream.clear();
34 fStream.seekg (0, ios::beg);
35 } else {
36 close();
37 fFilename=fileName;
38 fStream.clear();
39 fStream.open(fFilename.c_str(),mode);
40 }
41 if (Debug()) Perror("StStreamFile::open");
42 }
43
44 //__________________________________________________________________________
45 void StStreamFile::close()
46 {
47 if (is_open()) {
48 fStream.clear();
49 fStream.close();
50 fFilename.erase();
51 closeFileSignal();
52 }
53 }
54 //__________________________________________________________________________
55 istream &StStreamFile::read(char *s, streamsize n)
56 {
57 fStream.clear();
58 fStream.read(s,n);
59 if (Debug()) Perror("StStreamFile::read");
60 return fStream;
61 }
62 //__________________________________________________________________________
63 void StStreamFile::Perror(const char *header) const
64 {
65 if (!good()) {
66 if (header && header[0]) std::cerr << header << ": ";
67 std::cerr << " StStreamFile I/O error: "
68 << " fail=" << fail()
69 << "; bad=" << bad()
70 << "; eof=" << eof()
71 << " for <" << fFilename <<"> "
72 << " open=" << ((StStreamFile *)this)->is_open()
73 << std::endl;
74 } else if (Debug()) {
75 if (header && header[0]) std::cerr << header << ": ";
76 std::cerr << "There was no I/O Error"
77 << " for <" << fFilename <<"> "
78 << std::endl;
79 }
80 }
81