/* BEGIN INCLUDE FILE: dm_bj_ppt.incl.pl1 */ /* Layout of the per-process before journal table and entries. Written by Andre Bensoussan June/July 1982 Modified: 09/29/82 by Lee A. Newcomb: To make two default oid cells, pad ppte's to account for all used space, and use dm_system_data_ for determining dimension of bj_ppt.e. */ /* format: style4,indattr,idind33,^indcomtxt */ dcl BJ_PPT_VERSION_1 fixed bin int static options (constant) init (1); dcl BJ_PPTE_VERSION_1 fixed bin int static options (constant) init (1); dcl bj_ppt_ptr ptr; dcl 1 bj_ppt based (bj_ppt_ptr) aligned, 2 version fixed bin, 2 max_n_entries fixed bin, /* should be = dm_system_data_$bj_max_n_journals */ 2 n_entries_used fixed bin, /* # of BJs open in this process */ 2 highest_ix_used fixed bin, /* max. # of BJs ever opened in this process */ 2 default_bj, /* for selecting a txn def. BJ by write_before_mark protocol */ 3 user_set_oid bit (36), /* explicit user setting via $set_default_bj */ 3 last_opened_oid bit (36), /* implicit if no user setting, set by open and close */ /* if both zero, use system default BJ */ 2 process_id bit (36), /* so we don't have to keep calling for it. */ 2 process_ix fixed bin, /* index into bj_check_in_table */ 2 mod_list_area (100) fixed bin (35), /* for keeping track of ppt mods, not curr. used */ 2 e dim (dm_system_data_$bj_max_n_journals refer (bj_ppt.max_n_entries)) like bj_ppte; /* an entry for each BJ open in this process */ /* always make sure bj_ppt.e is on a even word boundary */ /* now specify the format of each per-process BJ table entry */ dcl bj_ppte_ptr ptr; dcl 1 bj_ppte based (bj_ppte_ptr) aligned, 2 version fixed bin, /* better be the same for all entries in a bj_ppt */ 2 bj_uid bit (36), /* UID of the BJ page file */ 2 pf_oid bit (36), /* OID of the BJ page file */ 2 n_opening fixed bin, /* how many openings this process has done for this BJ */ 2 bj_pste_ptr ptr, /* "link" to per-system BJ table entry */ 2 open_time fixed bin (71); /* used to fill in bj_ppt.default_bj.last_opened_oid */ /* if the last opened BJ is closed */ /* END INCLUDE FILE: bj_ppt.incl.pl1 */ */ ----------------------------------------------------------- Historical Background This edition of the Multics software materials and documentation is provided and donated to Massachusetts Institute of Technology by Group Bull including Bull HN Information Systems Inc. as a contribution to computer science knowledge. This donation is made also to give evidence of the common contributions of Massachusetts Institute of Technology, Bell Laboratories, General Electric, Honeywell Information Systems Inc., Honeywell Bull Inc., Groupe Bull and Bull HN Information Systems Inc. to the development of this operating system. Multics development was initiated by Massachusetts Institute of Technology Project MAC (1963-1970), renamed the MIT Laboratory for Computer Science and Artificial Intelligence in the mid 1970s, under the leadership of Professor Fernando Jose Corbato. Users consider that Multics provided the best software architecture for managing computer hardware properly and for executing programs. Many subsequent operating systems incorporated Multics principles. Multics was distributed in 1975 to 2000 by Group Bull in Europe , and in the U.S. by Bull HN Information Systems Inc., as successor in interest by change in name only to Honeywell Bull Inc. and Honeywell Information Systems Inc. . ----------------------------------------------------------- Permission to use, copy, modify, and distribute these programs and their documentation for any purpose and without fee is hereby granted,provided that the below copyright notice and historical background appear in all copies and that both the copyright notice and historical background and this permission notice appear in supporting documentation, and that the names of MIT, HIS, Bull or Bull HN not be used in advertising or publicity pertaining to distribution of the programs without specific prior written permission. Copyright 1972 by Massachusetts Institute of Technology and Honeywell Information Systems Inc. Copyright 2006 by Bull HN Information Systems Inc. Copyright 2006 by Bull SAS All Rights Reserved */