2 * CDE - Common Desktop Environment
4 * Copyright (c) 1993-2012, The Open Group. All rights reserved.
6 * These libraries and programs are free software; you can
7 * redistribute them and/or modify them under the terms of the GNU
8 * Lesser General Public License as published by the Free Software
9 * Foundation; either version 2 of the License, or (at your option)
12 * These libraries and programs are distributed in the hope that
13 * they will be useful, but WITHOUT ANY WARRANTY; without even the
14 * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
15 * PURPOSE. See the GNU Lesser General Public License for more
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with these librararies and programs; if not, write
20 * to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
21 * Floor, Boston, MA 02110-1301 USA
24 * $XConsortium: pstring.h /main/5 1996/07/18 14:45:25 drk $
26 * Copyright (c) 1993 HAL Computer Systems International, Ltd.
27 * All rights reserved. Unpublished -- rights reserved under
28 * the Copyright Laws of the United States. USE OF A COPYRIGHT
29 * NOTICE IS PRECAUTIONARY ONLY AND DOES NOT IMPLY PUBLICATION
32 * THIS SOFTWARE CONTAINS CONFIDENTIAL INFORMATION AND TRADE
33 * SECRETS OF HAL COMPUTER SYSTEMS INTERNATIONAL, LTD. USE,
34 * DISCLOSURE, OR REPRODUCTION IS PROHIBITED WITHOUT THE
35 * PRIOR EXPRESS WRITTEN PERMISSION OF HAL COMPUTER SYSTEMS
38 * RESTRICTED RIGHTS LEGEND
39 * Use, duplication, or disclosure by the Government is subject
40 * to the restrictions as set forth in subparagraph (c)(l)(ii)
41 * of the Rights in Technical Data and Computer Software clause
42 * at DFARS 252.227-7013.
44 * HAL COMPUTER SYSTEMS INTERNATIONAL, LTD.
54 #include "object/primitive.h"
55 #include "utility/buffer.h"
56 #include "storage/page_storage.h"
58 /***************************************
59 * Primitive string class.
60 ****************************************/
62 class pstring: public primitive
68 static buffer* v_io_buf_ptr;
70 static buffer v_io_buf;
74 void _asciiIn(istream&) ; // get input to v_io_buf
78 pstring(c_code_t = STRING_CODE);
79 pstring(const char* string, int sz, c_code_t = STRING_CODE);
82 virtual int size() const { return v_sz; };
85 char* get(buffer& optional_buffer = *v_io_buf_ptr);
87 char* get(buffer& optional_buffer = v_io_buf);
90 MMDB_SIGNATURES(pstring);
92 void init_persistent_info(persistent_info*);
95 // value comparison functions
96 virtual Boolean value_EQ(root&, Boolean safe = true) const ;
97 virtual Boolean value_LS(root&, Boolean safe = true) const ;
101 virtual Boolean update(pstring& new_value);
102 virtual Boolean update(const char* new_value, int new_value_sz);
105 virtual io_status asciiOut(ostream& s) ;
106 virtual io_status asciiIn(istream&) ;
107 virtual io_status asciiIn(const char* buf, int size) ;
109 // compacted disk representation In and Out functions
110 virtual int cdr_sizeof();
111 virtual io_status cdrOut(buffer&);
112 virtual io_status cdrIn(buffer&);
114 friend class pstring_handler;
117 friend void initialize_MMDB();
118 friend void quit_MMDB();
121 protected: // a union of disk/memory pointer
130 void _init(const char*, int sz);
135 class pstring_handler : public handler
141 pstring_handler(const oid_t&, storagePtr = 0);
142 pstring_handler(const char* str, int str_sz, storagePtr = 0);
143 virtual ~pstring_handler();
145 pstring* operator ->();