GzipOutStream.h

//
// $Id: GzipOutStream.h,v 1.13 2007/03/06 20:42:19 will_mason Exp $
//
// vi: set ft=objc:

/*
 * ObjectiveLib - a library of containers and algorithms for Objective-C
 *
 * Copyright (c) 2004-2007
 * Will Mason
 *
 * Portions:
 *
 * Copyright (c) 1994
 * Hewlett-Packard Company
 *
 * Copyright (c) 1996,1997
 * Silicon Graphics Computer Systems, Inc.
 *
 * Copyright (c) 1997
 * Moscow Center for SPARC Technology
 *
 * Copyright (c) 1999 
 * Boris Fomitchev
 *
 * 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
 *
 * You may contact the author at will_mason@users.sourceforge.net.
 */

#if !defined(GZIPOUTSTREAM_OL_GUARD)
#define GZIPOUTSTREAM_OL_GUARD

#include <ObjectiveLib/ZlibOutStream.h>

@class OLDataOutStream;

@interface OLGzipOutStream : OLZlibOutStream
{
@protected
    uint32_t            crc;

    uint8_t*            commentData;

    uint8_t*            fileNameData;

    uint32_t            modTime;

    OLDataOutStream*    extraFields;

    BOOL                headerWritten;

    BOOL                trailerWritten;
}

+ (id) streamWithOutStream: (OLOutStream*)underStream;
+ (id) streamWithOutStream: (OLOutStream*)underStream compressionLevel: (int)level;

/* @{ */
- (id) initWithOutStream: (OLOutStream*)underStream compressionLevel: (int)level bufferSize: (unsigned)size writeZlibHeader: (BOOL)zlibHeader;

#if !defined(OL_NO_OPENSTEP)
- (void) dealloc;
#endif
/* @} */

- (void) addExtraField: (const char*)identifier withBytes: (const uint8_t*)buf count: (unsigned)num;
- (void) close;

#if defined(OL_NO_OPENSTEP)
- (void) freeStreamResources;
#endif

- (void) markModificationTime;

- (void) setComment: (const char*)comment;

- (void) setCommentText: (OLText*)comment;

- (void) setOriginalFileName: (const char*)name includeModificationTime: (BOOL)mtime;

- (void) setOriginalFileNameText: (OLText*)name includeModificationTime: (BOOL)mtime;
- (unsigned) writeBytes: (const uint8_t*)bytes count: (unsigned)num;

@end

#endif

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Generated Sun Apr 22 15:17:58 2007, © 2004-2007 Will Mason