125 lines
3.5 KiB
C++
125 lines
3.5 KiB
C++
/*
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* CDE - Common Desktop Environment
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*
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* Copyright (c) 1993-2012, The Open Group. All rights reserved.
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*
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* These libraries and programs are free software; you can
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* redistribute them and/or modify them under the terms of the GNU
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* Lesser General Public License as published by the Free Software
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* Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* These libraries and programs are distributed in the hope that
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* they will be useful, but WITHOUT ANY WARRANTY; without even the
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* implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU Lesser General Public License for more
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* details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with these libraries and programs; if not, write
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* to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
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* Floor, Boston, MA 02110-1301 USA
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*/
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/*
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* $XConsortium: compressed_pstring.h /main/4 1996/06/11 17:23:49 cde-hal $
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*
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* Copyright (c) 1993 HAL Computer Systems International, Ltd.
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* All rights reserved. Unpublished -- rights reserved under
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* the Copyright Laws of the United States. USE OF A COPYRIGHT
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* NOTICE IS PRECAUTIONARY ONLY AND DOES NOT IMPLY PUBLICATION
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* OR DISCLOSURE.
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*
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* THIS SOFTWARE CONTAINS CONFIDENTIAL INFORMATION AND TRADE
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* SECRETS OF HAL COMPUTER SYSTEMS INTERNATIONAL, LTD. USE,
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* DISCLOSURE, OR REPRODUCTION IS PROHIBITED WITHOUT THE
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* PRIOR EXPRESS WRITTEN PERMISSION OF HAL COMPUTER SYSTEMS
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* INTERNATIONAL, LTD.
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*
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* RESTRICTED RIGHTS LEGEND
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* Use, duplication, or disclosure by the Government is subject
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* to the restrictions as set forth in subparagraph (c)(l)(ii)
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* of the Rights in Technical Data and Computer Software clause
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* at DFARS 252.227-7013.
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*
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* HAL COMPUTER SYSTEMS INTERNATIONAL, LTD.
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* 1315 Dell Avenue
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* Campbell, CA 95008
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*
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*/
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#ifndef _compressed_pstring_h
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#define _compressed_pstring_h 1
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#include "object/pstring.h"
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#include "compression/abs_agent.h"
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/***************************************
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* compressed string class.
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****************************************/
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class compressed_pstring: public pstring
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{
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protected:
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#ifdef C_API
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static buffer* v_cp_io_buf_ptr;
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static buffer* working_buffer_ptr;
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#else
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static buffer v_cp_io_buf;
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static buffer working_buffer;
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#endif
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oid_t compress_agent_id;
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compress_agent_handler* agent;
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unsigned int v_uncompressed_sz;
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protected:
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void _compress();
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public:
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compressed_pstring(c_code_t = COMPRESSED_STRING_CODE);
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virtual ~compressed_pstring();
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// get uncompresed version
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#ifdef C_API
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char* get(buffer& optional_buffer = *v_cp_io_buf_ptr);
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#else
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char* get(buffer& optional_buffer = v_cp_io_buf);
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#endif
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int size() const; // get uncompressed data size
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MMDB_SIGNATURES(compressed_pstring);
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// asciiIn function
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virtual io_status _asciiIn(istream&) ; // read in string part
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virtual io_status _asciiIn(const char* buf, int size) ;
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virtual io_status asciiIn(istream&) ; // read in compress agent id and then
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virtual io_status asciiIn(const char* buf, int size, const oid_t&) ;
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virtual io_status asciiIn(const char* buf, int size) ;
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// compacted disk representation In and Out functions
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virtual int cdr_sizeof();
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virtual io_status cdrOut(buffer&);
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virtual io_status cdrIn(buffer&);
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friend class compressed_pstring_handler;
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#ifdef C_API
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friend void initialize_MMDB();
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friend void quit_MMDB();
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#endif
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private:
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};
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HANDLER_SIGNATURES(compressed_pstring)
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#endif
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