From: Klaus Kaempf Date: Fri, 24 Feb 2006 11:42:06 +0000 (+0000) Subject: use ma's implementation -> base/GzStream X-Git-Tag: BASE-SuSE-SLE-10-SP2-Branch~1926 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=68406a5448392284e0dd2c34a064215dc7826725;p=platform%2Fupstream%2Flibzypp.git use ma's implementation -> base/GzStream --- diff --git a/zypp/gzstream/COPYING.LIB b/zypp/gzstream/COPYING.LIB deleted file mode 100644 index b1e3f5a..0000000 --- a/zypp/gzstream/COPYING.LIB +++ /dev/null @@ -1,504 +0,0 @@ - GNU LESSER GENERAL PUBLIC LICENSE - Version 2.1, February 1999 - - Copyright (C) 1991, 1999 Free Software Foundation, Inc. - 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - Everyone is permitted to copy and distribute verbatim copies - of this license document, but changing it is not allowed. - -[This is the first released version of the Lesser GPL. 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See the GNU -// Lesser General Public License for more details. -// -// You should have received a copy of the GNU Lesser General Public -// License along with this library; if not, write to the Free Software -// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA -// ============================================================================ -// -// File : gzstream.C -// Revision : $Revision: 1.7 $ -// Revision_date : $Date: 2003/01/08 14:41:27 $ -// Author(s) : Deepak Bandyopadhyay, Lutz Kettner -// -// Standard streambuf implementation following Nicolai Josuttis, "The -// Standard C++ Library". -// ============================================================================ - -#include -#include -#include // for memcpy - -#ifdef GZSTREAM_NAMESPACE -namespace GZSTREAM_NAMESPACE { -#endif - -// ---------------------------------------------------------------------------- -// Internal classes to implement gzstream. See header file for user classes. -// ---------------------------------------------------------------------------- - -// -------------------------------------- -// class gzstreambuf: -// -------------------------------------- - -gzstreambuf* gzstreambuf::open( const char* name, int open_mode) { - if ( is_open()) - return (gzstreambuf*)0; - mode = open_mode; - // no append nor read/write mode - if ((mode & std::ios::ate) || (mode & std::ios::app) - || ((mode & std::ios::in) && (mode & std::ios::out))) - return (gzstreambuf*)0; - char fmode[10]; - char* fmodeptr = fmode; - if ( mode & std::ios::in) - *fmodeptr++ = 'r'; - else if ( mode & std::ios::out) - *fmodeptr++ = 'w'; - *fmodeptr++ = 'b'; - *fmodeptr = '\0'; - file = gzopen( name, fmode); - if (file == 0) - return (gzstreambuf*)0; - opened = 1; - return this; -} - -gzstreambuf * gzstreambuf::close() { - if ( is_open()) { - sync(); - opened = 0; - if ( gzclose( file) == Z_OK) - return this; - } - return (gzstreambuf*)0; -} - -int gzstreambuf::underflow() { // used for input buffer only - if ( gptr() && ( gptr() < egptr())) - return * reinterpret_cast( gptr()); - - if ( ! (mode & std::ios::in) || ! opened) - return EOF; - // Josuttis' implementation of inbuf - int n_putback = gptr() - eback(); - if ( n_putback > 4) - n_putback = 4; - memcpy( buffer + (4 - n_putback), gptr() - n_putback, n_putback); - - int num = gzread( file, buffer+4, bufferSize-4); - if (num <= 0) // ERROR or EOF - return EOF; - - // reset buffer pointers - setg( buffer + (4 - n_putback), // beginning of putback area - buffer + 4, // read position - buffer + 4 + num); // end of buffer - - // return next character - return * reinterpret_cast( gptr()); -} - -int gzstreambuf::flush_buffer() { - // Separate the writing of the buffer from overflow() and - // sync() operation. - int w = pptr() - pbase(); - if ( gzwrite( file, pbase(), w) != w) - return EOF; - pbump( -w); - return w; -} - -int gzstreambuf::overflow( int c) { // used for output buffer only - if ( ! ( mode & std::ios::out) || ! opened) - return EOF; - if (c != EOF) { - *pptr() = c; - pbump(1); - } - if ( flush_buffer() == EOF) - return EOF; - return c; -} - -int gzstreambuf::sync() { - // Changed to use flush_buffer() instead of overflow( EOF) - // which caused improper behavior with std::endl and flush(), - // bug reported by Vincent Ricard. - if ( pptr() && pptr() > pbase()) { - if ( flush_buffer() == EOF) - return -1; - } - return 0; -} - -// -------------------------------------- -// class gzstreambase: -// -------------------------------------- - -gzstreambase::gzstreambase( const char* name, int mode) { - init( &buf); - open( name, mode); -} - -gzstreambase::~gzstreambase() { - buf.close(); -} - -void gzstreambase::open( const char* name, int open_mode) { - if ( ! buf.open( name, open_mode)) - clear( rdstate() | std::ios::badbit); -} - -void gzstreambase::close() { - if ( buf.is_open()) - if ( ! buf.close()) - clear( rdstate() | std::ios::badbit); -} - -#ifdef GZSTREAM_NAMESPACE -} // namespace GZSTREAM_NAMESPACE -#endif - -// ============================================================================ -// EOF // diff --git a/zypp/gzstream/gzstream.h b/zypp/gzstream/gzstream.h deleted file mode 100644 index 861653f..0000000 --- a/zypp/gzstream/gzstream.h +++ /dev/null @@ -1,121 +0,0 @@ -// ============================================================================ -// gzstream, C++ iostream classes wrapping the zlib compression library. -// Copyright (C) 2001 Deepak Bandyopadhyay, Lutz Kettner -// -// This library is free software; you can redistribute it and/or -// modify it under the terms of the GNU Lesser General Public -// License as published by the Free Software Foundation; either -// version 2.1 of the License, or (at your option) any later version. -// -// This library 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 -// Lesser General Public License for more details. -// -// You should have received a copy of the GNU Lesser General Public -// License along with this library; if not, write to the Free Software -// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA -// ============================================================================ -// -// File : gzstream.h -// Revision : $Revision: 1.5 $ -// Revision_date : $Date: 2002/04/26 23:30:15 $ -// Author(s) : Deepak Bandyopadhyay, Lutz Kettner -// -// Standard streambuf implementation following Nicolai Josuttis, "The -// Standard C++ Library". -// ============================================================================ - -#ifndef GZSTREAM_H -#define GZSTREAM_H 1 - -// standard C++ with new header file names and std:: namespace -#include -#include -#include - -#ifdef GZSTREAM_NAMESPACE -namespace GZSTREAM_NAMESPACE { -#endif - -// ---------------------------------------------------------------------------- -// Internal classes to implement gzstream. See below for user classes. -// ---------------------------------------------------------------------------- - -class gzstreambuf : public std::streambuf { -private: - static const int bufferSize = 47+256; // size of data buff - // totals 512 bytes under g++ for igzstream at the end. - - gzFile file; // file handle for compressed file - char buffer[bufferSize]; // data buffer - char opened; // open/close state of stream - int mode; // I/O mode - - int flush_buffer(); -public: - gzstreambuf() : opened(0) { - setp( buffer, buffer + (bufferSize-1)); - setg( buffer + 4, // beginning of putback area - buffer + 4, // read position - buffer + 4); // end position - // ASSERT: both input & output capabilities will not be used together - } - int is_open() { return opened; } - gzstreambuf* open( const char* name, int open_mode); - gzstreambuf* close(); - ~gzstreambuf() { close(); } - - virtual int overflow( int c = EOF); - virtual int underflow(); - virtual int sync(); -}; - -class gzstreambase : virtual public std::ios { -protected: - gzstreambuf buf; -public: - gzstreambase() { init(&buf); } - gzstreambase( const char* name, int open_mode); - ~gzstreambase(); - void open( const char* name, int open_mode); - void close(); - gzstreambuf* rdbuf() { return &buf; } -}; - -// ---------------------------------------------------------------------------- -// User classes. Use igzstream and ogzstream analogously to ifstream and -// ofstream respectively. They read and write files based on the gz* -// function interface of the zlib. Files are compatible with gzip compression. -// ---------------------------------------------------------------------------- - -class igzstream : public gzstreambase, public std::istream { -public: - igzstream() : std::istream( &buf) {} - igzstream( const char* name, int open_mode = std::ios::in) - : gzstreambase( name, open_mode), std::istream( &buf) {} - gzstreambuf* rdbuf() { return gzstreambase::rdbuf(); } - void open( const char* name, int open_mode = std::ios::in) { - gzstreambase::open( name, open_mode); - } -}; - -class ogzstream : public gzstreambase, public std::ostream { -public: - ogzstream() : std::ostream( &buf) {} - ogzstream( const char* name, int mode = std::ios::out) - : gzstreambase( name, mode), std::ostream( &buf) {} - gzstreambuf* rdbuf() { return gzstreambase::rdbuf(); } - void open( const char* name, int open_mode = std::ios::out) { - gzstreambase::open( name, open_mode); - } -}; - -#ifdef GZSTREAM_NAMESPACE -} // namespace GZSTREAM_NAMESPACE -#endif - -#endif // GZSTREAM_H -// ============================================================================ -// EOF // - diff --git a/zypp/gzstream/index.html b/zypp/gzstream/index.html deleted file mode 100644 index 8a9ef8e..0000000 --- a/zypp/gzstream/index.html +++ /dev/null @@ -1,145 +0,0 @@ - -Gzstream Library Home Page - - - -

Gzstream Library Home Page

- -
-
- - - -
- - -
-

Introduction

- -Gzstream is a small C++ library, basically just a wrapper, -that provides the functionality of the -zlib C-library in a C++ iostream. -It is freely available under the LGPL license.

- -Gzstream has been written by -Deepak Bandyopadhyay and -Lutz Kettner at -the Computational -Geometry Group at UNC Chapel Hill.

- - -

-

Supported Systems

- -Gzstream requires a standard compliant C++ compiler (we use the new -header file conventions and the new iostream in the std:: name space) -and, of course, zlib. We used zlib 1.1.3 so far, but see the zlib home page for why you should -upgrade to zlib 1.1.4. So, in theory, the provided sources could run -on many platforms. However, we used only the following few -platforms.

-

- -

    -
  • PC Linux, RedHat 6.1, g++ version 2.95.2 -
  • PC Linux, Debian, g++ version 2.95.2 and 3.1 -
  • SGI Irix 6.5, MIPSpro CC version 7.30 -

- - -

-

Installation

- -Either compile gzstream.C by hand, place it in some library, -and move gzstream.h into the include search path of your -compiler. Or use the provided Makefile, adapt its -variables, and follow the remarks in the Makefile. Two -test programs are provided, test_gzip.C and test_gunzip.C. -The Makefile contains a rule that performs a small test -with these programs.

- - -

-

Documentation

- -The library provides two classes, igzstream and ogzstream, -that can be used analogously to ifstream and ofstream -respectively.

- -The classes are by default in the global name space. This can -be changed by setting the macro GZSTREAM_NAMESPACE to -the desired name space, e.g., by setting the option --DGZSTREAM_NAMESPACE=gz in the Makefile. -However, this needs to be consistent for both, the library compilation -and the application that uses the library.

- - -

-

What's Missing

- -
    -
  • Seek. The zlib library provides the necessary functionality, - but we have not realized that in the wrapper (yet? ;-). -
  • Both streams are based on the same streambuffer. So, they - cannot be used to derive an iogzstream class that would allow - simultaneous reading and writing to the same file. -

- - -

-

Download and Release Notes

 - -
    -
  • Gzstream library 1.5 (08 Apr 2003): - gzstream.tgz
    - Fixed bug that did not set the state correctly on failure to open or - close a file.
    - Fixed bug in the indexing of the write buffer that - caused the write buffer to shrink continously and finally caused - wrong results when writing compressed files (only observed on some - platforms).

    -

  • Gzstream library 1.4 (27 Apr 2002):
    - Fixed a bug that stopped stream output after calling flush() - or using std::endl.

    -

  • Gzstream library 1.3 (06 Nov 2001):
    - Fixed unsigned char -- signed char bug. Increased buffer size - for better performance.

    -

  • Gzstream library 1.2 (04 Oct 2001):
    - Initial release as gzstream, renamed from zipstream.

    -

  • Zipstream library 1.1 (09 Sep 2001):
    - Initial release. -
- -
-

Acknowledgements

- -Credits for finding bugs and improving this software go to: -Vincent Ricard, Peter Milley, Peter J. Torelli, and Ares Lagae. -

- -

-

Links

- - - -
-
- The Computational Geometry Group at UNC Chapel Hill, Jan. 08, 2003. -
- - - diff --git a/zypp/gzstream/logo.gif b/zypp/gzstream/logo.gif deleted file mode 100644 index e259089..0000000 Binary files a/zypp/gzstream/logo.gif and /dev/null differ diff --git a/zypp/gzstream/test_gunzip.C b/zypp/gzstream/test_gunzip.C deleted file mode 100644 index 6c4a7d7..0000000 --- a/zypp/gzstream/test_gunzip.C +++ /dev/null @@ -1,78 +0,0 @@ -// ============================================================================ -// gzstream, C++ iostream classes wrapping the zlib compression library. -// Copyright (C) 2001 Deepak Bandyopadhyay, Lutz Kettner -// -// This library is free software; you can redistribute it and/or -// modify it under the terms of the GNU Lesser General Public -// License as published by the Free Software Foundation; either -// version 2.1 of the License, or (at your option) any later version. -// -// This library 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 -// Lesser General Public License for more details. -// -// You should have received a copy of the GNU Lesser General Public -// License along with this library; if not, write to the Free Software -// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA -// ============================================================================ -// -// File : test_gunzip.C -// Revision : $Revision: 1.3 $ -// Revision_date : $Date: 2001/10/04 15:09:28 $ -// Author(s) : Deepak Bandyopadhyay, Lutz Kettner -// -// Short test program reading a file, uncompressing it, and writing it. -// ============================================================================ - -#include -#include -#include -#include - -int main( int argc, char*argv[]) { - if ( argc != 3) { - std::cerr << "Usage: " << argv[0] <<" \n"; - return EXIT_FAILURE; - } - // check alternate way of opening file - igzstream in2; - in2.open( argv[1]); - if ( ! in2.good()) { - std::cerr << "ERROR: Opening file `" << argv[1] << "' failed.\n"; - return EXIT_FAILURE; - } - in2.close(); - if ( ! in2.good()) { - std::cerr << "ERROR: Closing file `" << argv[1] << "' failed.\n"; - return EXIT_FAILURE; - } - // now use the shorter way with the constructor to open the same file - igzstream in( argv[1]); - if ( ! in.good()) { - std::cerr << "ERROR: Opening file `" << argv[1] << "' failed.\n"; - return EXIT_FAILURE; - } - std::ofstream out( argv[2]); - if ( ! out.good()) { - std::cerr << "ERROR: Opening file `" << argv[2] << "' failed.\n"; - return EXIT_FAILURE; - } - char c; - while ( in.get(c)) - out << c; - in.close(); - out.close(); - if ( ! in.eof()) { - std::cerr << "ERROR: Reading file `" << argv[1] << "' failed.\n"; - return EXIT_FAILURE; - } - if ( ! out.good()) { - std::cerr << "ERROR: Writing file `" << argv[2] << "' failed.\n"; - return EXIT_FAILURE; - } - return EXIT_SUCCESS; -} - -// ============================================================================ -// EOF diff --git a/zypp/gzstream/test_gzip.C b/zypp/gzstream/test_gzip.C deleted file mode 100644 index 0c691ae..0000000 --- a/zypp/gzstream/test_gzip.C +++ /dev/null @@ -1,78 +0,0 @@ -// ============================================================================ -// gzstream, C++ iostream classes wrapping the zlib compression library. -// Copyright (C) 2001 Deepak Bandyopadhyay, Lutz Kettner -// -// This library is free software; you can redistribute it and/or -// modify it under the terms of the GNU Lesser General Public -// License as published by the Free Software Foundation; either -// version 2.1 of the License, or (at your option) any later version. -// -// This library 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 -// Lesser General Public License for more details. -// -// You should have received a copy of the GNU Lesser General Public -// License along with this library; if not, write to the Free Software -// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA -// ============================================================================ -// -// File : test_gzip.C -// Revision : $Revision: 1.3 $ -// Revision_date : $Date: 2001/10/04 15:09:28 $ -// Author(s) : Deepak Bandyopadhyay, Lutz Kettner -// -// Short test program reading a file, compressing it, and writing it. -// ============================================================================ - -#include -#include -#include -#include - -int main( int argc, char*argv[]) { - if ( argc != 3) { - std::cerr << "Usage: " << argv[0] <<" \n"; - return EXIT_FAILURE; - } - // check alternate way of opening file - ogzstream out2; - out2.open( argv[2]); - if ( ! out2.good()) { - std::cerr << "ERROR: Opening file `" << argv[2] << "' failed.\n"; - return EXIT_FAILURE; - } - out2.close(); - if ( ! out2.good()) { - std::cerr << "ERROR: Closing file `" << argv[2] << "' failed.\n"; - return EXIT_FAILURE; - } - // now use the shorter way with the constructor to open the same file - ogzstream out( argv[2]); - if ( ! out.good()) { - std::cerr << "ERROR: Opening file `" << argv[2] << "' failed.\n"; - return EXIT_FAILURE; - } - std::ifstream in( argv[1]); - if ( ! in.good()) { - std::cerr << "ERROR: Opening file `" << argv[1] << "' failed.\n"; - return EXIT_FAILURE; - } - char c; - while ( in.get(c)) - out << c; - in.close(); - out.close(); - if ( ! in.eof()) { - std::cerr << "ERROR: Reading file `" << argv[1] << "' failed.\n"; - return EXIT_FAILURE; - } - if ( ! out.good()) { - std::cerr << "ERROR: Writing file `" << argv[2] << "' failed.\n"; - return EXIT_FAILURE; - } - return EXIT_SUCCESS; -} - -// ============================================================================ -// EOF diff --git a/zypp/gzstream/version b/zypp/gzstream/version deleted file mode 100644 index 511137d..0000000 --- a/zypp/gzstream/version +++ /dev/null @@ -1 +0,0 @@ -1.5 (08 Jan 2003)