GzipOutStream.h

00001 //
00002 // $Id: GzipOutStream.h,v 1.13 2007/03/06 20:42:19 will_mason Exp $
00003 //
00004 // vi: set ft=objc:
00005 
00006 /*
00007  * ObjectiveLib - a library of containers and algorithms for Objective-C
00008  *
00009  * Copyright (c) 2004-2007
00010  * Will Mason
00011  *
00012  * Portions:
00013  *
00014  * Copyright (c) 1994
00015  * Hewlett-Packard Company
00016  *
00017  * Copyright (c) 1996,1997
00018  * Silicon Graphics Computer Systems, Inc.
00019  *
00020  * Copyright (c) 1997
00021  * Moscow Center for SPARC Technology
00022  *
00023  * Copyright (c) 1999 
00024  * Boris Fomitchev
00025  *
00026  * This library is free software; you can redistribute it and/or
00027  * modify it under the terms of the GNU Lesser General Public
00028  * License as published by the Free Software Foundation; either
00029  * version 2.1 of the License, or (at your option) any later version.
00030  *
00031  * This library is distributed in the hope that it will be useful,
00032  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00033  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00034  * Lesser General Public License for more details.
00035  *
00036  * You should have received a copy of the GNU Lesser General Public
00037  * License along with this library; if not, write to the Free Software
00038  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00039  *
00040  * You may contact the author at will_mason@users.sourceforge.net.
00041  */
00042 
00043 #if !defined(GZIPOUTSTREAM_OL_GUARD)
00044 #define GZIPOUTSTREAM_OL_GUARD
00045 
00046 #include <ObjectiveLib/ZlibOutStream.h>
00047 
00048 @class OLDataOutStream;
00049 
00062 @interface OLGzipOutStream : OLZlibOutStream
00063 {
00064 @protected
00068     uint32_t            crc;
00069 
00073     uint8_t*            commentData;
00074 
00078     uint8_t*            fileNameData;
00079 
00083     uint32_t            modTime;
00084 
00088     OLDataOutStream*    extraFields;
00089 
00093     BOOL                headerWritten;
00094 
00098     BOOL                trailerWritten;
00099 }
00100 
00101 + (id) streamWithOutStream: (OLOutStream*)underStream;
00102 + (id) streamWithOutStream: (OLOutStream*)underStream compressionLevel: (int)level;
00103 
00107 /* @{ */
00133 - (id) initWithOutStream: (OLOutStream*)underStream compressionLevel: (int)level bufferSize: (unsigned)size writeZlibHeader: (BOOL)zlibHeader;
00134 
00135 #if !defined(OL_NO_OPENSTEP)
00136 - (void) dealloc;
00137 #endif
00138 /* @} */
00139 
00154 - (void) addExtraField: (const char*)identifier withBytes: (const uint8_t*)buf count: (unsigned)num;
00155 - (void) close;
00156 
00157 #if defined(OL_NO_OPENSTEP)
00158 - (void) freeStreamResources;
00159 #endif
00160 
00169 - (void) markModificationTime;
00170 
00182 - (void) setComment: (const char*)comment;
00183 
00192 - (void) setCommentText: (OLText*)comment;
00193 
00212 - (void) setOriginalFileName: (const char*)name includeModificationTime: (BOOL)mtime;
00213 
00229 - (void) setOriginalFileNameText: (OLText*)name includeModificationTime: (BOOL)mtime;
00230 - (unsigned) writeBytes: (const uint8_t*)bytes count: (unsigned)num;
00231 
00232 @end
00233 
00234 #endif

ObjectiveLibGenerated Sun Apr 22 15:12:39 2007, © 2004-2007 Will Mason
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