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

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

@@ -0,0 +1,102 @@
+/*
+ * $XConsortium: compressed_pstring.h /main/4 1996/06/11 17:23:49 cde-hal $
+ *
+ * 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  Unpublished -- rights reserved under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 _compressed_pstring_h
+#define _compressed_pstring_h 1
+
+#include "object/pstring.h"
+#include "compression/abs_agent.h"
+
+/***************************************
+* compressed string class.
+****************************************/
+
+class compressed_pstring: public pstring
+{
+
+protected:
+
+#ifdef C_API
+   static buffer* v_cp_io_buf_ptr;
+   static buffer* working_buffer_ptr;
+#else
+   static buffer v_cp_io_buf;
+   static buffer working_buffer;
+#endif
+
+   oid_t compress_agent_id;
+
+   unsigned int v_uncompressed_sz;
+   
+   compress_agent_handler* agent;
+
+protected:
+   void _compress();
+
+public:
+   compressed_pstring(c_code_t = COMPRESSED_STRING_CODE);
+   virtual ~compressed_pstring();
+
+// get uncompresed version
+#ifdef C_API
+   char* get(buffer& optional_buffer = *v_cp_io_buf_ptr); 
+#else
+   char* get(buffer& optional_buffer = v_cp_io_buf); 
+#endif
+
+   int size() const; // get uncompressed data size
+
+   MMDB_SIGNATURES(compressed_pstring);
+
+// asciiIn function
+   virtual io_status _asciiIn(istream&) ; // read in string part
+   virtual io_status _asciiIn(const char* buf, int size) ; 
+
+   virtual io_status asciiIn(istream&) ;  // read in compress agent id and then
+   virtual io_status asciiIn(const char* buf, int size, const oid_t&) ;  
+   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 compressed_pstring_handler;
+
+#ifdef C_API
+   friend void initialize_MMDB();
+   friend void quit_MMDB();
+#endif
+
+private:
+
+};
+
+HANDLER_SIGNATURES(compressed_pstring)
+   
+#endif