Initial import of the CDE 2.1.30 sources from the Open Group.

cde/programs/dtinfo/DtMmdb/object/pstring.h

@@ -0,0 +1,127 @@
+/*
+ * $XConsortium: pstring.h /main/5 1996/07/18 14:45:25 drk $
+ *
+ * Copyright (c) 1993 HAL Computer Systems International, Ltd.
+ * All rights reserved.  Unpublished -- rights reserved under
+ * the Copyright Laws of the United States.  USE OF A COPYRIGHT
+ * NOTICE IS PRECAUTIONARY ONLY AND DOES NOT IMPLY PUBLICATION
+ * OR DISCLOSURE.
+ * 
+ * THIS SOFTWARE CONTAINS CONFIDENTIAL INFORMATION AND TRADE
+ * SECRETS OF HAL COMPUTER SYSTEMS INTERNATIONAL, LTD.  USE,
+ * DISCLOSURE, OR REPRODUCTION IS PROHIBITED WITHOUT THE
+ * PRIOR EXPRESS WRITTEN PERMISSION OF HAL COMPUTER SYSTEMS
+ * INTERNATIONAL, LTD.
+ * 
+ *                         RESTRICTED RIGHTS LEGEND
+ * Use, duplication, or disclosure by the Government is subject
+ * to the restrictions as set forth in subparagraph (c)(l)(ii)
+ * of the Rights in Technical Data and Computer Software clause
+ * at DFARS 252.227-7013.
+ *
+ *          HAL COMPUTER SYSTEMS INTERNATIONAL, LTD.
+ *                  1315 Dell Avenue
+ *                  Campbell, CA  95008
+ * 
+ */
+
+
+#ifndef _pstring_h
+#define _pstring_h 1
+
+#include "object/primitive.h"
+#include "utility/buffer.h"
+#include "storage/page_storage.h"
+
+/***************************************
+* Primitive string class.
+****************************************/
+
+class pstring: public primitive
+{
+
+protected:
+
+#ifdef C_API
+   static buffer* v_io_buf_ptr;
+#else
+   static buffer v_io_buf;
+#endif
+
+protected:
+   void _asciiIn(istream&) ; // get input to v_io_buf
+
+public:
+   pstring(pstring&);
+   pstring(c_code_t = STRING_CODE);
+   pstring(const char* string, int sz, c_code_t = STRING_CODE);
+   virtual ~pstring();
+
+   virtual int size() const { return v_sz; };
+
+#ifdef C_API
+   char* get(buffer& optional_buffer = *v_io_buf_ptr);
+#else
+   char* get(buffer& optional_buffer = v_io_buf);
+#endif
+
+   MMDB_SIGNATURES(pstring);
+
+   void init_persistent_info(persistent_info*);
+
+/*
+// value comparison functions
+   virtual Boolean value_EQ(root&, Boolean safe = true) const ;
+   virtual Boolean value_LS(root&, Boolean safe = true) const ;
+*/
+
+// update function
+   virtual Boolean update(pstring& new_value);
+   virtual Boolean update(const char* new_value, int new_value_sz);
+
+// print function
+   virtual io_status asciiOut(ostream& s) ;
+   virtual io_status asciiIn(istream&) ;
+   virtual io_status asciiIn(const char* buf, int size) ;
+
+// compacted disk representation In and Out functions
+   virtual int cdr_sizeof();
+   virtual io_status cdrOut(buffer&);
+   virtual io_status cdrIn(buffer&);
+
+   friend class pstring_handler;
+
+#ifdef C_API
+   friend void initialize_MMDB();
+   friend void quit_MMDB();
+#endif
+
+protected: // a union of disk/memory pointer
+   union {
+      mmdb_pos_t loc;
+      char* p;
+   } v_str_ptr;
+   unsigned int v_sz;
+
+
+private:
+   void _init(const char*, int sz);
+
+};
+   
+   
+class pstring_handler : public handler
+{
+
+protected:
+
+public:
+   pstring_handler(const oid_t&, storagePtr = 0);
+   pstring_handler(const char* str, int str_sz, storagePtr = 0);
+   virtual ~pstring_handler();
+
+   pstring* operator ->();
+};
+
+
+#endif