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24 * $XConsortium: dlp_hd.h /main/4 1996/06/11 17:28:42 cde-hal $
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54 #include "object/oid_t.h"
55 #include "object/dl_list_cell.h"
56 #include "oliasdb/olias_consts.h"
57 #include "api/smart_ptr.h"
59 /*************************************/
61 /*************************************/
63 class dlp : public dl_list_cell
66 dlp() : dl_list_cell(DLP_CODE), pos_status(NOT_BEG_TERM) {};
71 handler* get_component(int) ;
74 io_status asciiOut(ostream&);
75 io_status asciiIn(istream&);
77 virtual int cdr_sizeof();
78 virtual io_status cdrOut(buffer&);
79 virtual io_status cdrIn(buffer&);
82 enum POS_STATUS { BEG=1, TERM=2, NOT_BEG_TERM=0 };
85 char pos_status; // 1: beginning cell
86 // 2: terminating cell
87 // 3: both beginning and terminating cell
88 // 0: neither beginning nor terminating cell
90 friend class dlp_smart_ptr;
98 class dlp_smart_ptr : public smart_ptr
101 // x_id is not the oid of the dlp_hd, rather it is the
102 // content of the dlp_hd.
103 dlp_smart_ptr(info_lib* lib_ptr, const char* ibase_name, const oid_t& node_id);
104 dlp_smart_ptr(info_base* ibase_ptr, const oid_t& node_id);
106 dlp_smart_ptr(dlp_smart_ptr&, const oid_t& dlp_id);
108 virtual ~dlp_smart_ptr() {};
111 // id of the node that this dlp represents
112 const oid_t node_id();
114 // the prev and next dlp of this dlp
115 dlp_smart_ptr* prev();
116 dlp_smart_ptr* next();
118 oid_t prev_node_oid();
119 oid_t next_node_oid();
121 oid_t prev_dlp_oid();
122 oid_t next_dlp_oid();