+// A C++ I/O streams interface to the zlib gz* functions
+//
+// Written by Bernie Bright, 1998
+// Based on zlib/contrib/iostream/ by Kevin Ruland <kevin@rodin.wustl.edu>
+//
+// Copyright (C) 1998 Bernie Bright - bbright@c031.aone.net.au
+//
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU General Public License as
+// published by the Free Software Foundation; either version 2 of the
+// License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful, but
+// WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+// General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+//
+// $Id$
+// (Log is kept at end of this file)
#ifndef _zfstream_hxx
#define _zfstream_hxx
-#include <fstream.h>
-
#include "zlib/zlib.h"
-#include "Include/fg_stl_config.h"
+#include "Include/compiler.h"
-class gzfilebuf : public streambuf {
+#ifdef FG_HAVE_STD_INCLUDES
-public:
+# include <streambuf>
+# include <istream>
- gzfilebuf( );
- virtual ~gzfilebuf();
+# define ios_openmode ios_base::openmode
+# define ios_in ios_base::in
+# define ios_out ios_base::out
+# define ios_app ios_base::app
+# define ios_binary ios_base::binary
- gzfilebuf *open( const char *name, int io_mode );
- gzfilebuf *attach( int file_descriptor, int io_mode );
- gzfilebuf *close();
+# define ios_seekdir ios_base::seekdir
- int setcompressionlevel( short comp_level );
- int setcompressionstrategy( short comp_strategy );
+# define ios_badbit ios_base::badbit
+# define ios_failbit ios_base::failbit
- inline int is_open() const { return (file !=NULL); }
+#else
- virtual streampos seekoff( streamoff, ios::seek_dir, int );
+# ifdef FG_HAVE_STREAMBUF
+# include <streambuf.h>
+# include <istream.h>
+# else
+# include <iostream.h>
+# endif
- virtual int sync();
+//# define ios_openmode ios::open_mode
+# define ios_openmode int
+# define ios_in ios::in
+# define ios_out ios::out
+# define ios_app ios::app
+# define ios_binary ios::binary
-protected:
+# define ios_seekdir ios::seek_dir
- virtual int underflow();
- virtual int overflow( int = EOF );
+# define ios_badbit ios::badbit
+# define ios_failbit ios::failbit
-private:
+# include "Include/fg_traits.hxx"
- gzFile file;
- short mode;
- short own_file_descriptor;
+#endif // FG_HAVE_STD_INCLUDES
- int flushbuf();
- int fillbuf();
-
-};
+//-----------------------------------------------------------------------------
+//
+//
+//
+class gzfilebuf : public streambuf
+{
+public:
-class gzfilestream_common : virtual public ios {
+#ifndef FG_HAVE_STD_INCLUDES
+ typedef char_traits<char> traits_type;
+ typedef char_traits<char>::int_type int_type;
+ typedef char_traits<char>::pos_type pos_type;
+ typedef char_traits<char>::off_type off_type;
+#endif
-// friend class gzifstream;
- friend class gzofstream;
- friend gzofstream &setcompressionlevel( gzofstream &, int );
- friend gzofstream &setcompressionstrategy( gzofstream &, int );
+ gzfilebuf();
+ virtual ~gzfilebuf();
-public:
- virtual ~gzfilestream_common();
+ gzfilebuf* open( const char* name, ios_openmode io_mode );
+ gzfilebuf* attach( int file_descriptor, ios_openmode io_mode );
+ gzfilebuf* close();
- void attach( int fd, int io_mode );
- void open( const char *name, int io_mode );
- void close();
+// int setcompressionlevel( int comp_level );
+// int setcompressionstrategy( int comp_strategy );
+ bool is_open() const { return (file != NULL); }
+ virtual streampos seekoff( streamoff off, ios_seekdir way, int which );
+ virtual int sync();
protected:
- gzfilestream_common();
- gzfilebuf *rdbuf();
+ virtual int_type underflow();
+ virtual int_type overflow( int_type c = traits_type::eof() );
private:
- 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();
-
-};
+ int_type flushbuf();
+ int fillbuf();
-class gzofstream : public gzfilestream_common, public ostream {
+ // Convert io_mode to "rwab" string.
+ void cvt_iomode( char* mode_str, ios_openmode io_mode );
-public:
+private:
- gzofstream();
- gzofstream( const char *name, int io_mode = ios::out );
- gzofstream( int fd, int io_mode = ios::out );
+ gzFile file;
+ ios_openmode mode;
+ bool own_file_descriptor;
- virtual ~gzofstream();
+ // Get (input) buffer.
+ int ibuf_size;
+ char* ibuffer;
-};
+ static const int page_size = 4096;
-template<class T> class gzomanip {
- friend gzofstream &operator << FG_NULL_TMPL_ARGS (gzofstream &, const gzomanip<T> &);
-public:
- gzomanip(gzofstream &(*f)(gzofstream &, T), T v) : func(f), val(v) { }
private:
- gzofstream &(*func)(gzofstream &, T);
- T val;
+ // Not defined
+ gzfilebuf( const gzfilebuf& );
+ void operator= ( const gzfilebuf& );
};
-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)
+//-----------------------------------------------------------------------------
+//
+//
+//
+struct gzifstream_base
{
- return gzomanip<int>( /* & */ setcompressionlevel,l); // & superfluous
-}
+ gzifstream_base() {}
-inline gzomanip<int> setcompressionstrategy(int l)
-{
- return gzomanip<int>( /* & */ setcompressionstrategy,l); // & superfluous
-}
+ gzfilebuf gzbuf;
+};
#endif // _zfstream_hxx
+
+// $Log$
+// Revision 1.5 1998/11/06 21:17:29 curt
+// Converted to new logstream debugging facility. This allows release
+// builds with no messages at all (and no performance impact) by using
+// the -DFG_NDEBUG flag.
+//
+// Revision 1.4 1998/11/06 14:05:16 curt
+// More portability improvements by Bernie Bright.
+//
projects / flightgear.git / blobdiff