COMPILATION LISTING OF SEGMENT tm_get_tdt_size Compiled by: Multics PL/I Compiler, Release 28e, of February 14, 1985 Compiled at: Honeywell Multics Op. - System M Compiled on: 03/05/85 0913.3 mst Tue Options: optimize map 1 /* *********************************************************** 2* * * 3* * Copyright, (C) Honeywell Information Systems Inc., 1983 * 4* * * 5* *********************************************************** */ 6 /* format: style4,ifthenstmt,^indproc,^indcomtxt */ 7 /*---------------*/ 8 9 tm_get_tdt_size: proc (A_highest_txn_index); 10 11 12 /* DESCRIPTION: 13* 14* Returns the highest index corresponding to an in-use TDT slot. 15**/ 16 17 /* HISTORY: 18*Written by Steve Herbst, 04/20/83. 19*Modified: 20*07/31/84 by Steve Herbst: Added $tdt_in_use. 21*08/03/84 by Lee A. Newcomb: Moved style comment and proc statement, and 22* renamed loop index i to tdt_index to follow DM project standards. 23*10/17/84 by Steve Herbst: Changed in response to audit comments. 24*11/27/84 by Steve Herbst: Changed further in response to audit comments. 25**/ 26 27 28 /* DECLARATIONS */ 29 30 /* Parameters */ 31 32 dcl A_highest_txn_index fixed parameter; 33 34 35 /* Constants */ 36 37 /* Based */ 38 39 /* Static */ 40 41 /* Automatic */ 42 43 dcl tdt_index fixed bin; 44 45 /* External */ 46 47 dcl dm_data_$tm_tdt_ptr ptr external; 48 dcl dm_system_data_$initializer_processid bit (36) aligned external; 49 dcl error_table_$unimplemented_version fixed bin (35) ext; 50 51 /* Entries */ 52 53 dcl sub_err_ entry options (variable); 54 55 /* Builtins */ 56 57 dcl null builtin; 58 59 /* Conditions */ 60 61 /* END OF DECLARATIONS */ 62 63 tm_tdt_ptr = dm_data_$tm_tdt_ptr; 64 65 if tm_tdt.version ^= TM_TDT_VERSION_3 then 66 call sub_err_ (error_table_$unimplemented_version, "tm_get_tdt_size", ACTION_CANT_RESTART, 67 null, 0, "Expected TDT version ^a, found ^a.", TM_TDT_VERSION_3, tm_tdt.version); 68 69 do tdt_index = tm_tdt.entry_count by -1 to 1 while (tm_tdt.process_id (tdt_index) = "0"b); end; 70 71 A_highest_txn_index = tdt_index; 72 73 return; 74 75 dm_system_in_use: entry () returns (bit (1) aligned); 76 77 tm_tdt_ptr = dm_data_$tm_tdt_ptr; 78 79 if tm_tdt.version ^= TM_TDT_VERSION_3 then 80 call sub_err_ (error_table_$unimplemented_version, "tm_get_tdt_size$dm_system_in_use", 81 ACTION_CANT_RESTART, null, 0, "Expected TDT version ^a, found ^a.", 82 TM_TDT_VERSION_3, tm_tdt.version); 83 84 do tdt_index = 1 to tm_tdt.entry_count; 85 86 if tm_tdt.process_id (tdt_index) ^= "0"b then 87 if tm_tdt.process_id (tdt_index) ^= dm_system_data_$initializer_processid then return ("1"b); 88 else if tm_tdt.txn_id (tdt_index) ^= "0"b then return ("1"b); 89 end; 90 91 return ("0"b); 92 1 1 /* START OF: dm_tm_tdt.incl.pl1 */ 1 2 1 3 /* Transaction Definition Table for transaction_manager_ */ 1 4 /* This structure is used to reference the TDT. The process_id field for the 1 5* i'th TDT entry, for example, is usually referenced as tm_tdt.process_id (i). 1 6* A TDT entry is in use by a process when its process_id field is nonzero. 1 7* An entry is reserved by using the stacq builtin to set process_id, if and 1 8* only if it is already zero. The entry is being used for a transaction when 1 9* tm_tdt.txn_id (i) is nonzero. The possible values of tm_tdt.state (i) are 1 10* listed in dm_tm_states.incl.pl1. If state = 0, no operation has been 1 11* performed yet on the transaction. */ 1 12 1 13 1 14 /* HISTORY: 1 15*Designed by Matt Pierret, 01/26/82. 1 16*Coded by Steve Herbst, 07/27/82. 1 17*Modified: 1 18*08/05/82 by Steve Herbst: Added tm_tdt.operation and padded last_uid to full word. 1 19*08/05/82 by Steve Herbst: Changed creator_process_id to bit (36). 1 20*08/16/82 by Steve Herbst: Added contents of dm_tm_tdt_entry.incl.pl1. 1 21*09/09/82 by Steve Herbst: Removed in_use flag from TDT entry and rearranged fields. 1 22*09/20/82 by Steve Herbst: Removed tm_tdt.operation. 1 23*11/01/82 by Steve Herbst: Added event_channel and error_sw to tm_tdt_entry. 1 24*11/05/82 by Steve Herbst: Added suspended_sw and error_code to tm_tdt_entry. 1 25*11/11/82 by Steve Herbst: Deleted tm_tdt_entry.alloc_complete. 1 26*11/23/82 by Steve Herbst: Compacted, changed some numbers to unsigned. 1 27*12/14/82 by Steve Herbst: Added tm_tdt_entry.daemon_error_sw. 1 28*01/11/83 by Steve Herbst: Added owner_name, abandoned_sw & kill_sw to tm_tdt_entry. 1 29*01/24/83 by Steve Herbst: Replaced daemon_error_sw with daemon_adjust_count. 1 30*01/25/83 by Steve Herbst: Moved abandoned_sw from transaction portion to entry header portion. 1 31*05/13/83 by Steve Herbst: Version 3, changed all fixed bin (18) unal uns numbers to fixed bin (17) unaligned. 1 32*05/26/83 by Steve Herbst: Added rollback_count and checkpoint_id. 1 33**/ 1 34 1 35 dcl tm_tdt_ptr ptr; 1 36 dcl tdt_max_count fixed bin; 1 37 1 38 dcl TM_TDT_VERSION_3 char (8) int static options (constant) init ("TM-TDT 3"); 1 39 1 40 1 41 dcl 1 tm_tdt aligned based (tm_tdt_ptr), 1 42 2 version char (8), /* = "TM-TDT 3" */ 1 43 2 lock fixed bin (71), /* (currently not used) */ 1 44 2 last_uid bit (27) aligned, /* last transaction uid assigned */ 1 45 2 flags, 1 46 3 no_begins bit (1) unaligned, /* ON => only priv process can begin transaction */ 1 47 3 mbz1 bit (35) unaligned, 1 48 2 entry_count fixed bin, /* number of slots allocated */ 1 49 2 mbz2 fixed bin, /* for even word boundary */ 1 50 2 entry (tdt_max_count refer (tm_tdt.entry_count)) 1 51 like tm_tdt_entry; 1 52 1 53 1 54 1 55 /* TDT entries: */ 1 56 1 57 dcl tm_tdt_entry_ptr ptr; 1 58 1 59 dcl 1 tm_tdt_entry aligned based (tm_tdt_entry_ptr), 1 60 2 event_channel fixed bin (71), /* for communication with the process */ 1 61 2 process_id bit (36) aligned, /* process for which this entry is reserved */ 1 62 2 owner_name char (32), /* person.project of owner process */ 1 63 2 entry_flags, 1 64 3 abandoned_sw bit (1) unaligned, /* ON => owner has called tm_$abandon on this entry */ 1 65 3 mbz3 bit (35) unaligned, 1 66 2 transaction unaligned, 1 67 3 txn_id bit (36) aligned, /* unique identifier assigned at begin time */ 1 68 3 date_time_created fixed bin (71) aligned, 1 69 3 mode fixed bin (17) unaligned, /* mode specified with transaction begin */ 1 70 3 state fixed bin (17) unaligned, /* state transaction is currently in */ 1 71 3 error_code fixed bin (35) aligned, /* goes along with error_sw and error state */ 1 72 3 checkpoint_id fixed bin (17) unaligned, /* identifier of the current rollback checkpoint */ 1 73 3 rollback_count fixed bin (17) unaligned, /* number of times bjm_$rollback has been called */ 1 74 3 daemon_adjust_count fixed bin (17) unaligned, /* number of times daemon has tried to adjust since user */ 1 75 3 return_idx fixed bin (17) unaligned, /* parent transaction, or zero */ 1 76 3 flags, 1 77 4 dead_process_sw bit (1) unaligned, /* ON => treat process as dead even if it isn't yet */ 1 78 4 suspended_sw bit (1) unaligned, /* ON => suspended by tm_$suspend_txn */ 1 79 4 error_sw bit (1) unaligned, /* ON => state is one of the error states */ 1 80 4 kill_sw bit (1) unaligned, /* ON => being processed by tm_$kill */ 1 81 4 mbz4 bit (29) unaligned, 1 82 3 post_commit_flags, 1 83 4 (fmgr, 1 84 bjmgr, 1 85 ajmgr) bit (1) unaligned, 1 86 3 mbz4 fixed bin; 1 87 1 88 1 89 /* END OF: dm_tm_tdt.incl.pl1 */ 93 94 2 1 /* BEGIN INCLUDE FILE sub_err_flags.incl.pl1 BIM 11/81 */ 2 2 /* format: style3 */ 2 3 2 4 /* These constants are to be used for the flags argument of sub_err_ */ 2 5 /* They are just "string (condition_info_header.action_flags)" */ 2 6 2 7 declare ( 2 8 ACTION_CAN_RESTART init (""b), 2 9 ACTION_CANT_RESTART init ("1"b), 2 10 ACTION_DEFAULT_RESTART 2 11 init ("01"b), 2 12 ACTION_QUIET_RESTART 2 13 init ("001"b), 2 14 ACTION_SUPPORT_SIGNAL 2 15 init ("0001"b) 2 16 ) bit (36) aligned internal static options (constant); 2 17 2 18 /* End include file */ 95 96 97 end tm_get_tdt_size; SOURCE FILES USED IN THIS COMPILATION. LINE NUMBER DATE MODIFIED NAME PATHNAME 0 03/05/85 0759.9 tm_get_tdt_size.pl1 >spec>on>7138.pbf>tm_get_tdt_size.pl1 93 1 01/07/85 0900.1 dm_tm_tdt.incl.pl1 >ldd>include>dm_tm_tdt.incl.pl1 95 2 04/16/82 0958.1 sub_err_flags.incl.pl1 >ldd>include>sub_err_flags.incl.pl1 NAMES DECLARED IN THIS COMPILATION. IDENTIFIER OFFSET LOC STORAGE CLASS DATA TYPE ATTRIBUTES AND REFERENCES (* indicates a set context) NAMES DECLARED BY DECLARE STATEMENT. ACTION_CANT_RESTART 000002 constant bit(36) initial dcl 2-7 set ref 65* 79* A_highest_txn_index parameter fixed bin(17,0) dcl 32 set ref 9 71* TM_TDT_VERSION_3 000000 constant char(8) initial unaligned dcl 1-38 set ref 65 65* 79 79* dm_data_$tm_tdt_ptr 000010 external static pointer dcl 47 ref 63 77 dm_system_data_$initializer_processid 000012 external static bit(36) dcl 48 ref 86 entry 10 based structure array level 2 dcl 1-41 entry_count 6 based fixed bin(17,0) level 2 dcl 1-41 ref 69 84 error_table_$unimplemented_version 000014 external static fixed bin(35,0) dcl 49 set ref 65* 79* null builtin function dcl 57 ref 65 65 79 79 process_id 12 based bit(36) array level 3 dcl 1-41 ref 69 86 86 sub_err_ 000016 constant entry external dcl 53 ref 65 79 tdt_index 000100 automatic fixed bin(17,0) dcl 43 set ref 69* 69* 71 84* 86 86 88* tm_tdt based structure level 1 dcl 1-41 tm_tdt_entry based structure level 1 dcl 1-59 tm_tdt_ptr 000102 automatic pointer dcl 1-35 set ref 63* 65 65 69 69 77* 79 79 84 86 86 88 transaction 24 based structure array level 3 unaligned dcl 1-41 txn_id 24 based bit(36) array level 4 dcl 1-41 ref 88 version based char(8) level 2 dcl 1-41 set ref 65 65* 79 79* NAMES DECLARED BY DECLARE STATEMENT AND NEVER REFERENCED. ACTION_CAN_RESTART internal static bit(36) initial dcl 2-7 ACTION_DEFAULT_RESTART internal static bit(36) initial dcl 2-7 ACTION_QUIET_RESTART internal static bit(36) initial dcl 2-7 ACTION_SUPPORT_SIGNAL internal static bit(36) initial dcl 2-7 tdt_max_count automatic fixed bin(17,0) dcl 1-36 tm_tdt_entry_ptr automatic pointer dcl 1-57 NAMES DECLARED BY EXPLICIT CONTEXT. dm_system_in_use 000205 constant entry external dcl 75 tm_get_tdt_size 000056 constant entry external dcl 9 THERE WERE NO NAMES DECLARED BY CONTEXT OR IMPLICATION. STORAGE REQUIREMENTS FOR THIS PROGRAM. Object Text Link Symbol Defs Static Start 0 0 470 510 362 500 Length 716 362 20 171 106 0 BLOCK NAME STACK SIZE TYPE WHY NONQUICK/WHO SHARES STACK FRAME tm_get_tdt_size 156 external procedure is an external procedure. STORAGE FOR AUTOMATIC VARIABLES. STACK FRAME LOC IDENTIFIER BLOCK NAME tm_get_tdt_size 000100 tdt_index tm_get_tdt_size 000102 tm_tdt_ptr tm_get_tdt_size THE FOLLOWING EXTERNAL OPERATORS ARE USED BY THIS PROGRAM. call_ext_out_desc return signal ext_entry THE FOLLOWING EXTERNAL ENTRIES ARE CALLED BY THIS PROGRAM. sub_err_ THE FOLLOWING EXTERNAL VARIABLES ARE USED BY THIS PROGRAM. dm_data_$tm_tdt_ptr dm_system_data_$initializer_processid error_table_$unimplemented_version LINE LOC LINE LOC LINE LOC LINE LOC LINE LOC LINE LOC LINE LOC 9 000053 63 000065 65 000070 69 000153 69 000165 71 000170 73 000173 75 000202 77 000213 79 000217 84 000301 86 000311 88 000333 89 000347 91 000351 ----------------------------------------------------------- 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