/* BEGIN INCLUDE FILE ... system_link_names.incl.pl1 */ /****^ HISTORY COMMENTS: 1) change(86-06-24,DGHowe), approve(86-06-24,MCR7396), audit(86-11-12,Zwick), install(86-11-20,MR12.0-1222): added the declaration of the heap_header. 2) change(86-10-20,DGHowe), approve(86-10-20,MCR7420), audit(86-11-12,Zwick), install(86-11-20,MR12.0-1222): add the seg ptr to the variable node structure. END HISTORY COMMENTS */ /* created by M. Weaver 7/28/76 */ /* Modified: 82-11-19 by T. Oke to add LIST_TEMPLATE_INIT. */ /* Modified 02/11/83 by M. Weaver to add have_vla_variables flag */ dcl 1 variable_table_header aligned based, /* header for name table */ 2 hash_table (0:63) ptr unaligned, /* hash table for variable nodes */ 2 total_search_time fixed bin (71), /* total time to search for variables */ 2 total_allocation_time fixed bin (71), /* total time spent allocating and initializing nodes and variables */ 2 number_of_searches fixed bin, /* number of times names were looked up */ 2 number_of_variables fixed bin (35), /* number of variables allocated by the linker, incl deletions */ 2 flags unaligned, 3 have_vla_variables bit (1) unaligned, /* on if some variables are > sys_info$max_seg_size */ 3 pad bit (11) unaligned, 2 cur_num_of_variables fixed bin (24) unal, /* current number of variables allocated */ 2 number_of_steps fixed bin, /* total number of nodes looked at */ 2 total_allocated_size fixed bin (35); /* current amount of storage in user area */ dcl 1 variable_node aligned based, /* individual variable information */ 2 forward_thread ptr unaligned, /* thread to next node off same hash bucket */ 2 vbl_size fixed bin (24) unsigned unaligned, /* length in words of variable */ 2 init_type fixed bin (11) unaligned, /* 0=not init; 3=init template; 4=area 5=list_template*/ 2 time_allocated fixed bin (71), /* time when variable was allocated */ 2 vbl_ptr ptr, /* pointer to variable's storage */ 2 init_ptr ptr, /* pointer to original init info in object seg */ 2 name_size fixed bin(21) aligned, /* length of name in characters */ 2 name char (nchars refer (variable_node.name_size)), /* name of variable */ 2 seg_ptr pointer; /* variable_node.seg_ptr Is a pointer to the segment containing the initialization information for this variable. It is used as a segment base pointer for external pointer initialization via list_init_. The init_ptr can not be used as a reference to the defining segment due to the possibility of set_fortran_common being used to initialize the external variables. sfc will generate an initialization information structure if multiple intialization sizes are found in the specified segments. sfc stores the address of this structure in the init_ptr field. This is one reason why sfc does not perform external pointer initialization. The seg_ptr is set to point at the segment used to define the initialization information. term_ sets this field to null on termination due to the possiblity of executing a different segment which defines initialization information. In this way the seg_ptr field will either be valid or null. */ dcl 1 heap_header based, 2 version char(8), /* specifies the verison of the header */ 2 heap_name_list_ptr pointer, /* points to the variable_table_header for this heap */ 2 previous_heap_ptr pointer, /* points to the previous heap or is null */ 2 area_ptr pointer, /* points to the heap area */ 2 execution_level fixed bin (17); /* specifies the execution level this header deals with */ dcl heap_header_version_1 char(8) static options (constant) init ("Heap_v01"); /* END INCLUDE FILE ... system_link_names.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 */