150 lines
3.9 KiB
C++
150 lines
3.9 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: pstring.h /main/5 1996/07/18 14:45:25 drk $
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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 Unpublished -- rights reserved under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 _pstring_h
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#define _pstring_h 1
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#include "object/primitive.h"
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#include "utility/buffer.h"
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#include "storage/page_storage.h"
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/***************************************
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* Primitive string class.
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****************************************/
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class pstring: public primitive
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{
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protected:
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#ifdef C_API
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static buffer* v_io_buf_ptr;
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#else
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static buffer v_io_buf;
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#endif
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protected:
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void _asciiIn(istream&) ; // get input to v_io_buf
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public:
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pstring(pstring&);
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pstring(c_code_t = STRING_CODE);
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pstring(const char* string, int sz, c_code_t = STRING_CODE);
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virtual ~pstring();
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virtual int size() const { return v_sz; };
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#ifdef C_API
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char* get(buffer& optional_buffer = *v_io_buf_ptr);
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#else
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char* get(buffer& optional_buffer = v_io_buf);
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#endif
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MMDB_SIGNATURES(pstring);
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void init_persistent_info(persistent_info*);
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/*
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// value comparison functions
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virtual Boolean value_EQ(root&, Boolean safe = true) const ;
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virtual Boolean value_LS(root&, Boolean safe = true) const ;
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*/
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// update function
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virtual Boolean update(pstring& new_value);
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virtual Boolean update(const char* new_value, int new_value_sz);
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// print function
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virtual io_status asciiOut(ostream& s) ;
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virtual io_status asciiIn(istream&) ;
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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 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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protected: // a union of disk/memory pointer
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union {
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mmdb_pos_t loc;
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char* p;
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} v_str_ptr;
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unsigned int v_sz;
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private:
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void _init(const char*, int sz);
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};
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class pstring_handler : public handler
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{
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protected:
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public:
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pstring_handler(const oid_t&, storagePtr = 0);
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pstring_handler(const char* str, int str_sz, storagePtr = 0);
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virtual ~pstring_handler();
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pstring* operator ->();
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};
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#endif
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