| OpenMS 2.5.0

Bzip2Ifstream.h
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2 // OpenMS -- Open-Source Mass Spectrometry
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30 // --------------------------------------------------------------------------
31 // $Maintainer: Timo Sachsenberg $
32 // $Authors: David Wojnar $
33 // --------------------------------------------------------------------------
34
35 #pragma once
36
37 #include <OpenMS/config.h>
38 #include <bzlib.h>
39 #include <istream>
40
41 namespace OpenMS
42 {
46 class OPENMS_DLLAPI Bzip2Ifstream
47 {
48 public:
50 Bzip2Ifstream();
52 explicit Bzip2Ifstream(const char * filename);
54 virtual ~Bzip2Ifstream();
55
70 size_t read(char * s, size_t n);
71
77 bool streamEnd() const;
78
82 bool isOpen() const;
83
88 void open(const char * filename);
89
93 void close();
94
95 protected:
97 FILE * file_;
99 BZFILE * bzip2file_;
101 size_t n_buffer_;
103 int bzerror_;
105 bool stream_at_end_;
106
107 //not implemented
108 Bzip2Ifstream(const Bzip2Ifstream & bzip2);
109 Bzip2Ifstream & operator=(const Bzip2Ifstream & bzip2);
110 };
111
112 //return bzip2file???!!!!????
113 inline bool Bzip2Ifstream::isOpen() const
114 {
115 return file_ != nullptr;
116 }
117
118 inline bool Bzip2Ifstream::streamEnd() const
119 {
120 return stream_at_end_;
121 }
122
123 } //namespace OpenMS
OpenMS::Bzip2Ifstream::bzerror_
int bzerror_
saves the last returned error by the read function
Definition: Bzip2Ifstream.h:103
OpenMS::Bzip2Ifstream::n_buffer_
size_t n_buffer_
counts the last read buffer
Definition: Bzip2Ifstream.h:101
OpenMS::Bzip2Ifstream::file_
FILE * file_
pointer to a FILE object. Necessary for opening the file
Definition: Bzip2Ifstream.h:97
OpenMS::Bzip2Ifstream::stream_at_end_
bool stream_at_end_
true if end of file is reached
Definition: Bzip2Ifstream.h:105
OpenMS::Bzip2Ifstream::isOpen
bool isOpen() const
returns whether a file is open.
Definition: Bzip2Ifstream.h:113
OpenMS::Bzip2Ifstream
Decompresses files which are compressed in the bzip2 format (*.bz2)
Definition: Bzip2Ifstream.h:46
OpenMS
Main OpenMS namespace.
Definition: FeatureDeconvolution.h:46
OpenMS::Bzip2Ifstream::streamEnd
bool streamEnd() const
indicates whether the read function can be used safely
Definition: Bzip2Ifstream.h:118
OpenMS::Bzip2Ifstream::bzip2file_
BZFILE * bzip2file_
a pointer to a BZFILE object. Necessary for decompression
Definition: Bzip2Ifstream.h:99