Trailing-Edge
-
PDP-10 Archives
-
BB-P363B-SM_1985
-
t20/nmlt20/nmlsta.b36
There is 1 other file named nmlsta.b36 in the archive. Click here to see a list.
! UPD ID= 268, SNARK:<6.1.NML>NMLSTA.B36.8, 1-Mar-85 10:02:51 by GLINDELL
! No need to poke data link watcher any more
!
! UPD ID= 257, SNARK:<6.1.NML>NMLSTA.B36.7, 10-Feb-85 14:49:21 by GLINDELL
! Check NML circuit substate also: if loading, dumping or triggering then
! do not change substate
!
! UPD ID= 234, SNARK:<6.1.NML>NMLSTA.B36.6, 17-Jan-85 14:33:25 by GLINDELL
! Replace PROGRAM_ERROR with TASK_ERROR
!
! UPD ID= 209, SNARK:<6.1.NML>NMLSTA.B36.5, 10-Dec-84 15:37:10 by HALPIN
! Get MONSYM Library file out of default directory, not BLI:
!
! UPD ID= 129, SNARK:<6.1.NML>NMLSTA.B36.4, 19-Oct-84 09:53:07 by HALPIN
! Make sure we don't get ON-FAILED or ON-STARTING state when the circuit
! is really Running, i.e. there are adjacent nodes on line.
! Check for OFF to ON-STARTING transistions and call the Data Link
! Watcher to try and Initialize Protocol on DTE's.
! Change Parameter passed to Calculation Routine to be a Pointer to
! a Circuit Id.
!
! UPD ID= 119, SLICE:<6.1.NML>NMLSTA.B36.3, 25-Sep-84 10:22:59 by HALPIN
! Fix Previous line's comment character.
!
! UPD ID= 117, SLICE:<6.1.NML>NMLSTA.B36.2, 24-Sep-84 16:46:45 by HALPIN
%title 'NMLSTA -- STATE Calculation Routines'
module NMLSTA (
ident = 'X04.01'
) =
begin
!
! COPYRIGHT (c) 1980, 1981 BY
! DIGITAL EQUIPMENT CORPORATION, MAYNARD, MASS.
!
! THIS SOFTWARE IS FURNISHED UNDER A LICENSE AND MAY BE USED AND COPIED
! ONLY IN ACCORDANCE WITH THE TERMS OF SUCH LICENSE AND WITH THE
! INCLUSION OF THE ABOVE COPYRIGHT NOTICE. THIS SOFTWARE OR ANY OTHER
! COPIES THEREOF MAY NOT BE PROVIDED OR OTHERWISE MADE AVAILABLE TO ANY
! OTHER PERSON. NO TITLE TO AND OWNERSHIP OF THE SOFTWARE IS HEREBY
! TRANSFERRED.
!
! THE INFORMATION IN THIS SOFTWARE IS SUBJECT TO CHANGE WITHOUT NOTICE
! AND SHOULD NOT BE CONSTRUED AS A COMMITMENT BY DIGITAL EQUIPMENT
! CORPORATION.
!
! DIGITAL ASSUMES NO RESPONSIBILITY FOR THE USE OR RELIABILITY OF ITS
! SOFTWARE ON EQUIPMENT WHICH IS NOT SUPPLIED BY DIGITAL.
!
!++
! FACILITY: DECnet-10/20 V4.0 Network Management Layer (NML)
!
! ABSTRACT:
!
!
! ENVIRONMENT: TOPS-10/20 NML
!
! AUTHOR: James J. Halpin Creation Date Sept 7, 1984
!
! MODIFIED BY:
!
! , : VERSION
! 01 -
!--
!
! INCLUDE FILES:
!
library 'NMLLIB'; ! All required definitions
library 'MONSYM'; ! Monitor symbols
library 'JLNKG'; ! JSYS linkage definitions
require 'NMLEXT'; ! NML External routines
!
! TABLE OF CONTENTS
!
forward routine
NML$CALCULATE_CIRCUIT_STATE: novalue;
!
! MACROS:
!
!
! EXTERNAL REFERENCES:
!
external routine
NML$GET_VDB_PARAMETER,
NML$SET_VDB_PARAMETER,
NML$CLR_VDB_PARAMETER;
%global_routine ('NML$CALCULATE_CIRCUIT_STATE', CIRCUIT_ID) : novalue =
!++
! FUNCTIONAL DESCRIPTION:
!
! Calculates the current state of the requested circuit and
! stores it into the Volatile Database.
!
! FORMAL PARAMETERS:
!
! CIRCUIT_ID - Pointer to Circuit Id.
!
! IMPLICIT INPUTS:
!
! NONE.
!
! ROUTINE VALUE:
!
! NONE.
!
! SIDE EFFECTS:
!
! The Value of the Circuit State Parameter in NML's Volatile
! Database will be updated.
!
!--
begin
literal
CIRCUIT_OFF = 0,
CIRCUIT_FAILED = 1,
CIRCUIT_STARTING = 2,
CIRCUIT_RUNNING = 3,
NML_FAILED = 11,
NML_OFF = 1,
NML_ON = 0,
NML_SERVICE = 2,
NML_STARTING = 0,
NML_NO_SUBSTATE = -1,
OB_LENGTH = 24, ! Length of the output buffer
OB_SIZE = ch$allocation (OB_LENGTH,8),
OB_ALLOCATION = OB_SIZE * %upval,
STATE_PARAMETER_NUMBER = 0,
SUBSTATE_PARAMETER_NUMBER = 1;
local
BUFFER_ADDRESS, ! Address of the output buffer
BUFFER_LENGTH, ! Buffer Length in bytes
BUFFER_POINTER,
LENGTH, ! Number of bytes returned from NMX
RESULT,
ROUTER_CIRCUIT_STATE,
NML_CIRCUIT_STATE,
NML_CIRCUIT_SUBSTATE;
if (BUFFER_ADDRESS = NMU$MEMORY_GET (OB_ALLOCATION)) eqla 0
then return;
BUFFER_POINTER = ch$ptr (.BUFFER_ADDRESS,,8);
BUFFER_LENGTH = OB_LENGTH;
NML$GET_VDB_PARAMETER (ENTITY_CIRCUIT,
.CIRCUIT_ID,
STATE_PARAMETER_NUMBER,
NML_CIRCUIT_STATE);
if .NML_CIRCUIT_STATE eql NML_SERVICE
then begin
NMU$MEMORY_RELEASE (.BUFFER_ADDRESS, OB_ALLOCATION);
return;
end;
! Now get NML's idea of internal substate. If its between LOADING
! and AUTOTRIGGERING then NML is currently doing loading, dumping
! or triggering, either as command or caused by DLW. In all these
! cases, do not reset the substate.
if not NML$GET_VDB_PARAMETER (ENTITY_CIRCUIT,
.CIRCUIT_ID,
SUBSTATE_PARAMETER_NUMBER,
NML_CIRCUIT_SUBSTATE)
then NML_CIRCUIT_SUBSTATE = CIRCUIT_NO_SUBSTATE;
! Use the fact that all interesting states have values in sequence
if (.NML_CIRCUIT_SUBSTATE geq CIRCUIT_LOADING)
and (.NML_CIRCUIT_SUBSTATE leq CIRCUIT_AUTOTRIGGERING)
then return;
! Not being worked on right now, get monitors point of view.
LENGTH = .BUFFER_LENGTH;
RESULT = $NML$SHOW (ENTITY_CIRCUIT,
.CIRCUIT_ID,
0, ! Qualifier
STATE_,
BUFFER_LENGTH,
.BUFFER_POINTER);
if .RESULT eql 1 then
begin
local TEMP;
BUFFER_POINTER = ch$ptr (.BUFFER_ADDRESS,,8);
LENGTH = .LENGTH = .BUFFER_LENGTH; ! # of data bytes returned
TEMP = GETW (BUFFER_POINTER); ! Get the Parameter Number
TEMP = GETB (BUFFER_POINTER); ! Get the format byte.
LENGTH = .LENGTH - 3;
ROUTER_CIRCUIT_STATE = GETB(BUFFER_POINTER);
case .ROUTER_CIRCUIT_STATE from CIRCUIT_OFF to CIRCUIT_RUNNING of
set
[CIRCUIT_OFF]: begin
NML_CIRCUIT_STATE = NML_OFF;
NML$SET_VDB_PARAMETER (ENTITY_CIRCUIT,
.CIRCUIT_ID,
STATE_PARAMETER_NUMBER,
NML_CIRCUIT_STATE);
NML$CLR_VDB_PARAMETER (ENTITY_CIRCUIT,
.CIRCUIT_ID,
SUBSTATE_PARAMETER_NUMBER);
end;
[CIRCUIT_FAILED]: begin
NML_CIRCUIT_STATE = NML_ON;
NML_CIRCUIT_SUBSTATE = NML_FAILED;
NML$SET_VDB_PARAMETER (ENTITY_CIRCUIT,
.CIRCUIT_ID,
STATE_PARAMETER_NUMBER,
NML_CIRCUIT_STATE);
NML$SET_VDB_PARAMETER (ENTITY_CIRCUIT,
.CIRCUIT_ID,
SUBSTATE_PARAMETER_NUMBER,
NML_CIRCUIT_SUBSTATE);
end;
[CIRCUIT_STARTING]: begin
! Check here for a transtion from a OFF State
! to ON-STARTING.
NML$GET_VDB_PARAMETER (ENTITY_CIRCUIT,
.CIRCUIT_ID,
STATE_PARAMETER_NUMBER,
NML_CIRCUIT_STATE);
NML_CIRCUIT_STATE = NML_ON;
NML_CIRCUIT_SUBSTATE = NML_STARTING;
NML$SET_VDB_PARAMETER (ENTITY_CIRCUIT,
.CIRCUIT_ID,
STATE_PARAMETER_NUMBER,
NML_CIRCUIT_STATE);
NML$SET_VDB_PARAMETER (ENTITY_CIRCUIT,
.CIRCUIT_ID,
SUBSTATE_PARAMETER_NUMBER,
NML_CIRCUIT_SUBSTATE);
end;
[CIRCUIT_RUNNING]: begin
NML_CIRCUIT_STATE = NML_ON;
NML$SET_VDB_PARAMETER (ENTITY_CIRCUIT,
.CIRCUIT_ID,
STATE_PARAMETER_NUMBER,
NML_CIRCUIT_STATE);
if not NML$GET_VDB_PARAMETER (ENTITY_CIRCUIT,
.CIRCUIT_ID,
SUBSTATE_PARAMETER_NUMBER,
NML_CIRCUIT_SUBSTATE)
then NML_CIRCUIT_SUBSTATE = NML_NO_SUBSTATE;
! Get rid of any Illegal Substates.
! If we just had a transition from ON-STARTING
! or ON-FAILED, make sure we clear the old
! Substate.
if .NML_CIRCUIT_SUBSTATE eql NML_STARTING
or .NML_CIRCUIT_SUBSTATE eql NML_FAILED
then
NML$CLR_VDB_PARAMETER (ENTITY_CIRCUIT,
.CIRCUIT_ID,
SUBSTATE_PARAMETER_NUMBER);
end;
[OUTRANGE]: TASK_ERROR ('Invalid Circuit State returned from NMX');
tes;
end;
NMU$MEMORY_RELEASE (.BUFFER_ADDRESS, OB_ALLOCATION);
end; ! End of NML$CALCULATE_CIRCUIT_STATE
end
eludom
! Local Modes:
! Mode:BLISS
! Auto Save Mode:2
! Comment Column:40
! Comment Rounding:+1
! End: