/* BEGIN INCLUDE FILE mtape_vol_set.incl.pl1. Created by J. A. Bush 10/13/82 */
/* The include file mtape_err_stats.incl.pl1 is referenced by this include file */
/* format: style4 */

dcl  vs_ptr ptr;

dcl  mtape_vs_version_1 char (8) int static options (constant) init ("mtvsv001");

dcl  1 mtape_vol_set aligned based (vs_ptr),
       2 version char (8),				/* Current version */
       2 prev_vs_ptr ptr,				/* Pointer to previous volume set entry */
       2 next_vs_ptr ptr,				/* Pointer to next volume set entry */
       2 mrm_vs_ptr ptr,				/* Pointer to Most Recently Mounted VS member */
       2 lrm_vs_ptr ptr,				/* Pointer to Least Recently Mounted VS member */
       2 first_vl_ptr ptr,				/* Pointer to the first volume label record structure */
       2 last_vl_ptr ptr,				/* Pointer to the last volume label record structure */
       2 volume_name char (32),			/* Name specified in the attach description */
       2 volume_id char (32),				/* Name as recorded in the volume label */
       2 mount_comment char (64),			/* Mount comment from attach description */
       2 demount_comment char (64),			/* Demount comment from detach description */
       2 device_name char (8),			/* Device volume is currently or last mounted on */
       2 rcp_id bit (36),				/* RCP activation for this volume */
       2 tioi_id bit (36),				/* tape_ioi_ activation for this volume */
       2 volume_index fixed bin,			/* Volume sequence number within volume set */
       2 volume_density fixed bin,			/* Actual volume density determined by RCP */
       2 volume_type fixed bin,			/* Use rcp_volume_formats.incl.pl1 for decode */
       2 volume_check fixed bin,			/* Refer to named constants below for values */
       2 number_of_vol_labels fixed bin,		/* # of volume label records on this volume */
       2 auth_required bit (1),			/* "1"b => Operator authentication was required */
       2 mounted bit (1),				/* "1"b => volume currently mounted */
       2 ever_mounted bit (1),			/* "1"b => volume has been mounted */
       2 volume_end bit (1),				/* "1"b => reached end of volume (EOT foil) on write */
       2 first_file_unexpired bit (1),			/* "1"b => first file of volume is unexpired */
       2 dev_att_retry bit (1),			/* "1"b => DEVICE ATTENTION recovery in progress */
       2 pwr_off_retry bit (1),			/* "1"b => POWER OFF recovery in progress */
       2 mounts fixed bin,				/* Number of times volume mounted during attachment */
       2 tot_error_stats like mtape_err_stats,		/* Summation of error statistics for all mounts */
       2 rel_error_stats like mtape_err_stats;		/* Summation of error statistics, this mount */

/* Named constants applied to volume_check variable, when volume label read by PFMs pfm_init entry */

dcl  (MTAPE_VOLUME init (1),				/* Volume recorded by mtape_ (desired type) */
     MULT_PRIOR_VOLUME init (2),			/* Volume recorded by prior Multics software
						   (desired type) */
     NON_MULT_VOLUME init (3),			/* Volume recorded by other vendor (desired type) */
     BLANK_VOLUME init (4),				/* Volume is blank/unreadable */
     UNLABELED_VOLUME init (5),			/* Volume is unlabeled or has unrecognized label */
     RECOG_FORMAT_VOLUME init (6)			/* Volume has label of other recognized format */
     ) fixed bin int static options (constant);

/* END INCLUDE FILE mtape_vol_set.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

*/