/* BEGIN INCLUDE FILE ... lct.incl.pl1 */

/* Created by J. Stern 7/26/78 */
/* Metering information added by C. Hornig, March 1980. */
/* Unwired saved meters added by Robert Coren, December 1980 */

dcl  lctp ptr;					/* ptr to logical channel table */
dcl  lctep ptr;					/* ptr to logical channel table entry */
dcl  lct_size fixed bin;				/* size of lcte_array when allocated */

dcl 1 lct aligned based (lctp),			/* logical channel table */
    2 max_no_lctes fixed bin,				/* maximum number of lct entries */
    2 cur_no_lctes fixed bin,				/* current number of lct entries used */
    2 lcnt_ptr ptr,					/* ptr to logical channel name table */
    2 queue_lock bit (36),				/* lock used to serialize queueing operations */
    2 pad (11) fixed bin,
    2 lcte_array (lct_size refer (lct.max_no_lctes)) like lcte; /* lct entries */


dcl 1 lcte aligned based (lctep),			/* logical channel table entry */
    2 lock bit (36),				/* channel lock */
    2 data_base_ptr ptr unal,				/* ptr to channel data base */
    2 channel_type fixed bin (8) unal,			/* identifies channel manager program */
    2 flags unal,
      3 entry_in_use bit (1) unal,			/* ON if this entry in use */
      3 initialized bit (1) unal,			/* ON if this channel initialized */
      3 notify_reqd bit (1) unal,			/* ON if must notify when unlocking this channel */
      3 locked_for_interrupt bit (1) unal,		/* ON if lock set by interrupt handler */
      3 space_needed bit (1) unal,			/* ON if this channel needs buffer space */
      3 special_lock bit (1) unal,			/* ON if lock is managed by multiplexer */
      3 trace_force bit (1) unal,			/* ON to trace based on next bit only */
						/* OFF to XOR next bit with tty_buf.default_tracing */
      3 trace bit (1) unal,				/* ON to trace this channel */
      3 unused bit (1) unal,
    2 physical_channel_devx fixed bin (17) unal,		/* devx of physical chan from which logical chan is derived */
    2 major_channel_info,
      3 major_channel_devx fixed bin unal,		/* major channel device index */
      3 subchannel fixed bin (17) unal,			/* subchannel id (or data ptr) wrt major channel */
    2 queue_entries,
      3 queue_head bit (18) unal,			/* ptr to first queue entry for this channel */
      3 queue_tail bit (18) unal,			/* ptr to last queue entry for this channel */
    2 word_counts,
      3 input_words fixed bin (17) unal,		/* number of input words charged to this channel */
      3 output_words fixed bin (17) unal,		/* number of output words charged to this channel */

    2 meters,
      3 in_bytes fixed bin (35),
      3 out_bytes fixed bin (35),
      3 in,
        4 calls fixed bin (35),
        4 interrupts fixed bin (35),
        4 call_time fixed bin (71),
        4 interrupt_time fixed bin (71),
      3 out like lcte.meters.in,
      3 control like lcte.meters.in,
    2 saved_meters_ptr ptr,				/* pointer to unwired copy of meters saved at last dialup */

    2 timer_offset bit (18) aligned,			/* Head of list of timers for this channel */

    2 pad (3) fixed bin (35);


dcl  lcntp ptr;					/* ptr to logical channel name table */

dcl 1 lcnt aligned based (lcntp),			/* logical channel name table */
    2 names (lct.max_no_lctes) char (32) unal;		/* channel names */

dcl 1 saved_meters aligned based like lcte.meters;	/* meters saved at dialup, allocated in tty_area */


/* END INCLUDE FILE ... lct.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

*/