/* BEGIN INCLUDE FILE:	dm_bj_txt.incl.pl1	*/
/* 
dm_bj_txt - before journal per-system transaction table.

Designed by A. Bensoussan
Written  by M. Pandolf 06/02/82
Modified:
10/01/82 by Lee A. Newcomb:  To use dm_system_data_ for dimension attributes
	  and specify alignment on level one.
08feb83  by M. Pandolf:      To restructure the TXT and TXTE.
30mar83  by M. Pandolf:      To add last_completed_operation and ok_to_write.
*/
/* format: style4,indattr,idind33,^indcomtxt */

dcl  BJ_TXT_VERSION_1	        fixed bin int static options (constant) init (1);

dcl  bj_txt_ptr		        ptr;		/* pointer to transaction table */
dcl  bj_txte_ptr		        ptr;		/* pointer to transaction table element */

dcl  1 bj_txt		        aligned based (bj_txt_ptr), /* transaction table */
       2 version		        fixed bin,		/* should be BJ_TXT_VERSION_1 */
       2 max_n_entries	        fixed bin,
       2 n_entries_used	        fixed bin,		/* assumed contiguous */
       2 pad_header_to_32_words       bit (36) dim (29),	/* to mod32 align bj_txt.entry */
       2 entry		        dim (dm_system_data_$max_n_transactions refer (bj_txt.max_n_entries))
			        like bj_txte;

dcl  1 bj_txte		        based (bj_txte_ptr) aligned, /* single entry, must be mod32 word aligned */
       2 tid		        bit (36),		/* transaction id if this or last txn */
       2 bj_uid		        bit (36),		/* UID of before journal chosen at begin mark */
       2 entry_state aligned,
         3 last_completed_operation   char (4),		/* to prevent multiple abort and commit */
         3 ok_to_write                bit (1),		/* basically validates using this entry */
       2 owner_info aligned,				/* info about creation of txte */
         3 process_id	        bit (36),		/* of process that wrote begin mark */
       2 operator_info aligned,			/* of process that is currently using this txte */
         3 process_id	        bit (36),		/* of process that shall write subsequent marks */
         3 ppte_ptr		        ptr,		/* pointer to PPTE for this transaction */
         3 bj_oid		        bit (36),		/* before journal opening ID for operator */
       2 records_info aligned,			/* grouped to be saved and restored as one unit */
         3 curr_checkpoint_rec_id     bit (36),		/* ident of checkpoint record if doing a rollback, */
						/* else, this value must be zero. */
         3 first_bj_rec_id	        bit (36),		/* ident of first mark for this transaction */
         3 last_bj_rec_id	        bit (36),		/* ident of current mark for this transaction */
         3 n_rec_written	        fixed bin (35),	/* count of marks written for this transaction */
         3 n_bytes_written	        fixed bin (35),	/* count of total bytes written to journal */
         3 last_fm_postcommit_handler_rec_id
			        bit (36),		/* ident of last special handler in list */
       2 append_state aligned,			/* the first two members define the state of this */
         3 current_operation	        char (4),		/* transaction and its interaction with bj_storage: */
         3 pending_bj_rec_id	        bit (36),		/* operation  rec_id  state */
						/*   *null*    XXX    quiesed */
						/*   ^null     "0"b   write pending */
						/*   ^null     ^"0"b  write completed, needs flushing */
						/* */
         3 pending_n_rec_written      fixed bin (35),	/* copy to n_rec_written before flush */
         3 pending_n_bytes_written    fixed bin (35),	/* copy to n_bytes_written before flush */
       2 pad_entry_to_32_words        bit (36) dim (13);	/* make any part of table 32 words long */

/* END INCLUDE FILE:	dm_bj_txt_ptr	*/


*/
                                          -----------------------------------------------------------


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

*/