/*  */
/* BEGIN INCLUDE..............imp_ms...................... */

/* For IMP DIM */

/* Statistics about messages */


dcl  imp_data$ms external aligned;

dcl 1 ms aligned based,
    2 message_size_histogram_max (1:12) fixed bin,	/* Max values */
    2 filler (1:4) fixed bin (34),			/* Just so that following starts at eight word boundary */
    2 ms (1:2),					/* For read and write sides */
      3 message_type_count (0:15) fixed bin (34),
      3 regular_histogram (1:12),
        4 count fixed bin (34),
        4 total fixed bin (34),
      3 control_histogram (1:12),
        4 count fixed bin (34),
        4 total fixed bin (34),


    2 ncp_commands (0: 15) fixed bin (34),		/* Counter for ncp commands processed by IMP DIM */
    2 special_cases (1:4),
      3 count fixed bin (34),				/* How many times this special case happened */
      3 last_host fixed bin (8),			/* The host at other end for the last special case */
      3 last_link fixed bin (8),			/* The link for the last special case */
    2 iipi_invoked fixed binary (34),			/* Number of times entry "iipi" is invoked. */
    2 iipi_blocked fixed binary (34);			/* Number of times lock was set when iipi invoked. */


/* CONSTANTS */


dcl (read_msi init (1),
     write_msi init (2)) fixed bin static;		/* index to areas for read and write
						   message statistics */
dcl  message_size_histogram_max_values (1:12) fixed binary internal static
     initial (8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384);

dcl 1 message_size_histogram (1:12) based aligned,
    2 count fixed bin (34),
    2 total fixed bin (34);
dcl (unwanted_regular_message_sci init (1),		/* sci is for special case index */
     discarded_rfnm_sci init (2),
     ncp_header_error_read_sci init (3),
     ncp_header_error_write_sci init (4)) fixed binary internal static;


/* END INCLUDE................imp_ms....................... */


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


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

*/