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author | dkf <donal.k.fellows@manchester.ac.uk> | 2008-12-19 14:44:48 (GMT) |
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committer | dkf <donal.k.fellows@manchester.ac.uk> | 2008-12-19 14:44:48 (GMT) |
commit | 2cd073ec4bf5ea28c2f1d7db65f4ce95cc875611 (patch) | |
tree | 52b7482cbfbaacbd79b4390955254de21b6e7e65 /compat/zlib/contrib/iostream/zfstream.h | |
parent | bfa6d081abacd1d00e3a459c3d89039849818d6a (diff) | |
download | tcl-2cd073ec4bf5ea28c2f1d7db65f4ce95cc875611.zip tcl-2cd073ec4bf5ea28c2f1d7db65f4ce95cc875611.tar.gz tcl-2cd073ec4bf5ea28c2f1d7db65f4ce95cc875611.tar.bz2 |
Add previously omitted files so we have a complete zlib 1.2.3 distro...
Diffstat (limited to 'compat/zlib/contrib/iostream/zfstream.h')
-rw-r--r-- | compat/zlib/contrib/iostream/zfstream.h | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/compat/zlib/contrib/iostream/zfstream.h b/compat/zlib/contrib/iostream/zfstream.h new file mode 100644 index 0000000..ed79098 --- /dev/null +++ b/compat/zlib/contrib/iostream/zfstream.h @@ -0,0 +1,128 @@ + +#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 |