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

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

@@ -0,0 +1,124 @@
+/*
+ * $XConsortium: dl_list.h /main/5 1996/06/11 17:24:17 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  Unpublished -- rights reserved under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 _dl_list_h
+#define _dl_list_h 1
+
+#include "utility/filter.h"
+#include "object/composite.h"
+#include "index/index.h"
+#include "object/oid_list.h"
+#include "object/dl_list_cell.h"
+
+/***************************************
+* dl_list class.
+****************************************/
+
+class dl_list: public composite
+{
+
+
+public:
+   dl_list(c_code_t = DL_LIST_CODE);
+   dl_list(const dl_list&);
+   virtual ~dl_list();
+
+   void init_data_member(c_index_handlerPtr* indices, 
+                      int num_indices
+                     );
+
+   MMDB_SIGNATURES(dl_list);
+
+/*
+// value comparison functions
+   virtual Boolean value_EQ(root&, Boolean safe = true) const ;
+   virtual Boolean value_LS(root&, Boolean safe = true) const ;
+*/
+
+   virtual oid_t get_first_oid(const handler& query, int index);
+
+// insert component functions. new_cell and old_cell
+// are handlers to dl_list_cells already existing on
+// the store 
+   Boolean insert_before(dl_list_cell_handler& new_cell,
+                         dl_list_cell_handler& old_cell
+                        );
+   Boolean insert_after(dl_list_cell_handler& new_cell,
+                        dl_list_cell_handler& old_cell
+                       );
+
+// insert as head/tail cell. new_cell is a handler to a 
+// del_list_cell already existing on the store
+   Boolean insert_as_head(const dl_list_cell_handler& new_cell);
+   Boolean insert_as_tail(dl_list_cell_handler& new_cell);
+
+// iteration over components
+   virtual handler* get_component(int index) ;
+
+// get a set of locs for element objects satisfying a 'query'
+// 'index' indicates the index to be used. 
+   virtual oid_list_handler* get_locs(handler& query, int index)
+;
+
+// first/last cell's oid.
+   oid_t first_cell_oid() const ;
+   oid_t last_cell_oid() const ;
+
+// init/quit batch index
+   void batch_index_begin();
+   void batch_index_end();
+
+// read in a set of object instances. Used with
+// batch_index_begin() and batch_index_end() to
+// load a mixed object stream
+   io_status batch_asciiIn(istream& s);
+
+// instance in/out function
+   virtual io_status asciiOut(ostream&) ;
+   virtual io_status asciiIn(istream&) ;
+
+// compacted disk representation In and Out functions
+   virtual int cdr_sizeof();
+   virtual io_status cdrOut(buffer&);
+   virtual io_status cdrIn(buffer&);
+   void commit();
+
+protected:
+   Boolean insert_to_indices(const dl_list_cell_handler& new_cell);
+
+protected:
+   oid_t v_dl_list_head;
+   oid_t v_dl_list_tail;
+
+   c_index_handlerPtr *v_indices;
+   unsigned int v_num_indices;
+};
+
+HANDLER_SIGNATURES(dl_list)
+   
+#endif