Training courses

Kernel and Embedded Linux

Bootlin training courses

Embedded Linux, kernel,
Yocto Project, Buildroot, real-time,
graphics, boot time, debugging...

Bootlin logo

Elixir Cross Referencer

Open Menu /external/gpl3/gdb.old/dist/zlib/contrib/iostream/zfstream.h 
  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128

#ifndef zfstream_h
#define zfstream_h

#include <fstream.h>
#include "zlib.h"

class gzfilebuf : public streambuf {

public:

  gzfilebuf( );
  virtual ~gzfilebuf();

  gzfilebuf *open( const char *name, int io_mode );
  gzfilebuf *attach( int file_descriptor, int io_mode );
  gzfilebuf *close();

  int setcompressionlevel( int comp_level );
  int setcompressionstrategy( int comp_strategy );

  inline int is_open() const { return (file !=NULL); }

  virtual streampos seekoff( streamoff, ios::seek_dir, int );

  virtual int sync();

protected:

  virtual int underflow();
  virtual int overflow( int = EOF );

private:

  gzFile file;
  short mode;
  short own_file_descriptor;

  int flushbuf();
  int fillbuf();

};

class gzfilestream_common : virtual public ios {

  friend class gzifstream;
  friend class gzofstream;
  friend gzofstream &setcompressionlevel( gzofstream &, int );
  friend gzofstream &setcompressionstrategy( gzofstream &, int );

public:
  virtual ~gzfilestream_common();

  void attach( int fd, int io_mode );
  void open( const char *name, int io_mode );
  void close();

protected:
  gzfilestream_common();

private:
  gzfilebuf *rdbuf();

  gzfilebuf buffer;

};

class gzifstream : public gzfilestream_common, public istream {

public:

  gzifstream();
  gzifstream( const char *name, int io_mode = ios::in );
  gzifstream( int fd, int io_mode = ios::in );

  virtual ~gzifstream();

};

class gzofstream : public gzfilestream_common, public ostream {

public:

  gzofstream();
  gzofstream( const char *name, int io_mode = ios::out );
  gzofstream( int fd, int io_mode = ios::out );

  virtual ~gzofstream();

};

template<class T> class gzomanip {
  friend gzofstream &operator<<(gzofstream &, const gzomanip<T> &);
public:
  gzomanip(gzofstream &(*f)(gzofstream &, T), T v) : func(f), val(v) { }
private:
  gzofstream &(*func)(gzofstream &, T);
  T val;
};

template<class T> gzofstream &operator<<(gzofstream &s, const gzomanip<T> &m)
{
  return (*m.func)(s, m.val);
}

inline gzofstream &setcompressionlevel( gzofstream &s, int l )
{
  (s.rdbuf())->setcompressionlevel(l);
  return s;
}

inline gzofstream &setcompressionstrategy( gzofstream &s, int l )
{
  (s.rdbuf())->setcompressionstrategy(l);
  return s;
}

inline gzomanip<int> setcompressionlevel(int l)
{
  return gzomanip<int>(&setcompressionlevel,l);
}

inline gzomanip<int> setcompressionstrategy(int l)
{
  return gzomanip<int>(&setcompressionstrategy,l);
}

#endif