diff options
Diffstat (limited to 'zlib/contrib/iostream/zfstream.cpp')
| -rw-r--r-- | zlib/contrib/iostream/zfstream.cpp | 329 |
1 files changed, 0 insertions, 329 deletions
diff --git a/zlib/contrib/iostream/zfstream.cpp b/zlib/contrib/iostream/zfstream.cpp deleted file mode 100644 index d0cd85f..0000000 --- a/zlib/contrib/iostream/zfstream.cpp +++ /dev/null @@ -1,329 +0,0 @@ - -#include "zfstream.h" - -gzfilebuf::gzfilebuf() : - file(NULL), - mode(0), - own_file_descriptor(0) -{ } - -gzfilebuf::~gzfilebuf() { - - sync(); - if ( own_file_descriptor ) - close(); - -} - -gzfilebuf *gzfilebuf::open( const char *name, - int io_mode ) { - - if ( is_open() ) - return NULL; - - char char_mode[10]; - char *p = char_mode; - - if ( io_mode & ios::in ) { - mode = ios::in; - *p++ = 'r'; - } else if ( io_mode & ios::app ) { - mode = ios::app; - *p++ = 'a'; - } else { - mode = ios::out; - *p++ = 'w'; - } - - if ( io_mode & ios::binary ) { - mode |= ios::binary; - *p++ = 'b'; - } - - // Hard code the compression level - if ( io_mode & (ios::out|ios::app )) { - *p++ = '9'; - } - - // Put the end-of-string indicator - *p = '\0'; - - if ( (file = gzopen(name, char_mode)) == NULL ) - return NULL; - - own_file_descriptor = 1; - - return this; - -} - -gzfilebuf *gzfilebuf::attach( int file_descriptor, - int io_mode ) { - - if ( is_open() ) - return NULL; - - char char_mode[10]; - char *p = char_mode; - - if ( io_mode & ios::in ) { - mode = ios::in; - *p++ = 'r'; - } else if ( io_mode & ios::app ) { - mode = ios::app; - *p++ = 'a'; - } else { - mode = ios::out; - *p++ = 'w'; - } - - if ( io_mode & ios::binary ) { - mode |= ios::binary; - *p++ = 'b'; - } - - // Hard code the compression level - if ( io_mode & (ios::out|ios::app )) { - *p++ = '9'; - } - - // Put the end-of-string indicator - *p = '\0'; - - if ( (file = gzdopen(file_descriptor, char_mode)) == NULL ) - return NULL; - - own_file_descriptor = 0; - - return this; - -} - -gzfilebuf *gzfilebuf::close() { - - if ( is_open() ) { - - sync(); - gzclose( file ); - file = NULL; - - } - - return this; - -} - -int gzfilebuf::setcompressionlevel( int comp_level ) { - - return gzsetparams(file, comp_level, -2); - -} - -int gzfilebuf::setcompressionstrategy( int comp_strategy ) { - - return gzsetparams(file, -2, comp_strategy); - -} - - -streampos gzfilebuf::seekoff( streamoff off, ios::seek_dir dir, int which ) { - - return streampos(EOF); - -} - -int gzfilebuf::underflow() { - - // If the file hasn't been opened for reading, error. - if ( !is_open() || !(mode & ios::in) ) - return EOF; - - // if a buffer doesn't exists, allocate one. - if ( !base() ) { - - if ( (allocate()) == EOF ) - return EOF; - setp(0,0); - - } else { - - if ( in_avail() ) - return (unsigned char) *gptr(); - - if ( out_waiting() ) { - if ( flushbuf() == EOF ) - return EOF; - } - - } - - // Attempt to fill the buffer. - - int result = fillbuf(); - if ( result == EOF ) { - // disable get area - setg(0,0,0); - return EOF; - } - - return (unsigned char) *gptr(); - -} - -int gzfilebuf::overflow( int c ) { - - if ( !is_open() || !(mode & ios::out) ) - return EOF; - - if ( !base() ) { - if ( allocate() == EOF ) - return EOF; - setg(0,0,0); - } else { - if (in_avail()) { - return EOF; - } - if (out_waiting()) { - if (flushbuf() == EOF) - return EOF; - } - } - - int bl = blen(); - setp( base(), base() + bl); - - if ( c != EOF ) { - - *pptr() = c; - pbump(1); - - } - - return 0; - -} - -int gzfilebuf::sync() { - - if ( !is_open() ) - return EOF; - - if ( out_waiting() ) - return flushbuf(); - - return 0; - -} - -int gzfilebuf::flushbuf() { - - int n; - char *q; - - q = pbase(); - n = pptr() - q; - - if ( gzwrite( file, q, n) < n ) - return EOF; - - setp(0,0); - - return 0; - -} - -int gzfilebuf::fillbuf() { - - int required; - char *p; - - p = base(); - - required = blen(); - - int t = gzread( file, p, required ); - - if ( t <= 0) return EOF; - - setg( base(), base(), base()+t); - - return t; - -} - -gzfilestream_common::gzfilestream_common() : - ios( gzfilestream_common::rdbuf() ) -{ } - -gzfilestream_common::~gzfilestream_common() -{ } - -void gzfilestream_common::attach( int fd, int io_mode ) { - - if ( !buffer.attach( fd, io_mode) ) - clear( ios::failbit | ios::badbit ); - else - clear(); - -} - -void gzfilestream_common::open( const char *name, int io_mode ) { - - if ( !buffer.open( name, io_mode ) ) - clear( ios::failbit | ios::badbit ); - else - clear(); - -} - -void gzfilestream_common::close() { - - if ( !buffer.close() ) - clear( ios::failbit | ios::badbit ); - -} - -gzfilebuf *gzfilestream_common::rdbuf() -{ - return &buffer; -} - -gzifstream::gzifstream() : - ios( gzfilestream_common::rdbuf() ) -{ - clear( ios::badbit ); -} - -gzifstream::gzifstream( const char *name, int io_mode ) : - ios( gzfilestream_common::rdbuf() ) -{ - gzfilestream_common::open( name, io_mode ); -} - -gzifstream::gzifstream( int fd, int io_mode ) : - ios( gzfilestream_common::rdbuf() ) -{ - gzfilestream_common::attach( fd, io_mode ); -} - -gzifstream::~gzifstream() { } - -gzofstream::gzofstream() : - ios( gzfilestream_common::rdbuf() ) -{ - clear( ios::badbit ); -} - -gzofstream::gzofstream( const char *name, int io_mode ) : - ios( gzfilestream_common::rdbuf() ) -{ - gzfilestream_common::open( name, io_mode ); -} - -gzofstream::gzofstream( int fd, int io_mode ) : - ios( gzfilestream_common::rdbuf() ) -{ - gzfilestream_common::attach( fd, io_mode ); -} - -gzofstream::~gzofstream() { } |