SSX - Subsystem communication vector table extension

   Name : DCLSSX

   Function:
   This segment maps the Subsystem Extension block (SSX) for the subsystem.  The SSX
   IEFJSCVT control block is addressed via the SSCTSUSE pointer of the SSCT block
   mapped by the  macro.  In some cases there are two SSX blocks, the current, active SSX
   addressed via SSCTSUSE, and the old, inactive SSX addressed by SSCTSUS2.  The SSX
   block is allocated inCSA (subpool 241) in key 0 storage.  The SSX block is built by the EQQINIT
   module during Master Scheduler initialization, or by EQQMAJOR during subsystem initialization
   when the BUILDSSX keyword has been specified.  The active SSX block is freed and the
   inactive SSX is made active during EQQMAJOR termination when there is an inactive SSX.

Offsets
Dec Hex Type Len Name (Dim) Description
0 (0) STRUCTURE 1664 SSX ssvt extension block

              SSX block identifier and code level

Offsets
Dec Hex Type Len Name (Dim) Description
0 (0) CHARACTER 4 SSXDESC block descriptor = 'SSX '
4 (4) CHARACTER 10 SSXLEVEL SSX block code level
4 (4) CHARACTER 2 SSXVER block mapping version
6 (6) CHARACTER 8 SSXFMID OPCESA tracker fmid
14 (E) SIGNED 2 SSXSIZE size of the SSX block


              Status and option flags

Offsets
Dec Hex Type Len Name (Dim) Description
16 (10) BITSTRING 2 SSXFLAGS subsystem status flags 
 1...  ....
 SSXJHOLD 1 holdjob(yes) requested 
 .1..  ....
 SSXSTEPS 1 generate all step events 
 ..1.  ....
 SSXJSUB 1 job submission active 
 ...1  ....
 SSXJCHLD 1 jcc wants held data 
 ....  1...
 SSXETT 1 ett function active 
 ....  .1..
 SSXHGHCC 1 use highest cc for a job 
 ....  ..1.
 SSXLSTCC 1 use last exec step's cc 
 ....  ...1
 SSXUHOLD 1 holdjob(user) requested
17 (11) 
 1...  ....
 SSXNZERO 1 gen only nzero cc step events 
 .1..  ....
 SSXAR 1 auto recovery task is active 
 ..1.  ....
 SSXGDGNS 1 GDG_NONST 
 ...1  ....
 SSXWRN 1 JES sp-lvl warn msg issued 
 ....  1...
 SSXDIAE1 1 diagnose event wanted 
 ....  .1..
 SSXSRSRC 1 SR.SRNAME is a resource 
 ....  ..1.
 SSXFTWJSUB 1 opc will submit jobs 
 ....  ...1
 SSXRPASS 1 RCLPASS = YES
18 (12) BITSTRING 4 SSXFLAG2 more status flags 
 1...  ....
 SSXWRN1 1 JES exit51 warn msg iss. 
 .1..  ....
 SSXRLWST rl.wsstat subresource 
 ..1.  ....
 SSXRLWSN rl.wsname subresource 
 ...1  ....
 SSXFIPL 1 no dslst loaded for IPL 
 ....  1...
 SSXRLADN rl.adname subresource 
 ....  .1..
 SSXEMDEB Debug in ZEVSX 
 ....  ..1.
 SSXJCC 1 JCC started 
 ....  ...1
 SSXSSCBIG 1 SSC big buffer
19 (13) 
 1...  ....
 SSXSINFO 1 stepinfo(yes)
22 (16) CHARACTER 1 SSXJES JES type A=JES2, B=JES3
23 (17) CHARACTER 1 SSXCJES JES command character
24 (18) CHARACTER 8 SSXNODE own nje node name

              EQQSSCM load module management

Offsets
Dec Hex Type Len Name (Dim) Description
32 (20) CHARACTER 16 SSXSSCM_CUR current eqqsscm load module
32 (20) CHARACTER 8 SSXCMNAME eqqsscm load module name
40 (28) ADDRESS 4 SSXCMCATP eqqsscm entry point address
44 (2C) ADDRESS 4 SSXCMSSRX address of eqqzssrx
48 (30) CHARACTER 16 SSXSSCM_IPL previously loaded eqqsscm
48 (30) CHARACTER 8 SSXCMNAME
56 (38) ADDRESS 4 SSXCMCATP
60 (3C) ADDRESS 4 SSXCMSSRX

              Allocated resources

Offsets
Dec Hex Type Len Name (Dim) Description
64 (40) ADDRESS 4 SSXAREAS chain of allocated csa areas
68 (44) ADDRESS 4 SSXEVTQ event wtr queue address
72 (48) ADDRESS 4 SSXSSCMA perm loaded eqqsscm module addr
76 (4C) SIGNED 4 SSXSSCMS perm loaded eqqsscm module size
80 (50) ADDRESS 4 SSXNF57A EQQZNF57 address
84 (54) SIGNED 4 SSXNF57S EQQZNF57 size

         SSX label offsets above this point are fixed The only
        change allowed is defining a bit in an existing flag byte or
        modifing one of the SSX level constants

Offsets
Dec Hex Type Len Name (Dim) Description
88 (58) CHARACTER SSX_END_FIXED end of fixed ssx mapping

              Control Block addresses

Offsets
Dec Hex Type Len Name (Dim) Description
88 (58) ADDRESS 4 SSXMCAP addr of mca in opc addr space
92 (5C) ADDRESS 4 SSXASCB opc ascb address
96 (60) ADDRESS 4 SSXSSCT opc scvt address
100 (64) ADDRESS 4 SSXSDEPP ptr to EW SDEP parms
104 (68) ADDRESS 4 SSXDSNEW data set trigger table
108 (6C) ADDRESS 4 SSXNF41A EQQZNF41 address
112 (70) SIGNED 4 SSXNF41S EQQZNF41 size
116 (74) ADDRESS 4 SSXNF53A EQQZNF53 address
120 (78) SIGNED 4 SSXNF53S EQQZNF53 size
124 (7C) SIGNED 4 * (3) reserved


              SSC storage management addresses

Offsets
Dec Hex Type Len Name (Dim) Description
136 (88) ADDRESS 4 SSXSSCC addr of first SSC block
140 (8C) ADDRESS 4 SSXSSCFR addr of first free SSC

              TWS storage management addresses

Offsets
Dec Hex Type Len Name (Dim) Description
144 (90) CHARACTER 8 SSXTWSSERVERNAME TWS Server Name

          bin31   reserved
              DBCS options

Offsets
Dec Hex Type Len Name (Dim) Description
152 (98) CHARACTER 8 SSXDBCS dbcs options
152 (98) CHARACTER 2 SSXSORTO dbcs sort algorithm
154 (9A) CHARACTER 1 SSXADIDF dbcs adid option D or E
155 (9B) CHARACTER 1 SSXOWIDF dbcs owner option D or E
156 (9C) CHARACTER 4 * reserved

              Miscellaneous fields

Offsets
Dec Hex Type Len Name (Dim) Description
160 (A0) CHARACTER 8 SSXSJID started task job number
168 (A8) CHARACTER 8 SSXSJNM started task job name
176 (B0) CHARACTER 4 SSXSID MVS system id
180 (B4) CHARACTER 4 SSXSSNM submitting subsystem name
184 (B8) CHARACTER 8 SSXCLAS RACF resource class name
192 (C0) CHARACTER 16 SSXJCCLS JCC sysout classes
208 (D0) CHARACTER 1 SSXPRTEV prtev N=no, ' '=end, A=all
209 (D1) CHARACTER 1 SSXJES3 JES3 type G=Global, L=Local
210 (D2) CHARACTER 1 * free
211 (D3) CHARACTER 1 * free
212 (D4) CHARACTER 8 SSXJFMID JES fmid
220 (DC) CHARACTER 4 SSXDIAJN diagnose JOBSTC name
224 (E0) BITSTRING 4 SSXIECB JES input service ECB
228 (E4) BITSTRING 4 SSXEECB JES execution ECB
232 (E8) UNSIGNED 4 SSXPTKN current MGCR ptoken
236 (EC) SIGNED 4 SSXSDTR used as indicator only
240 (F0) SIGNED 4 SSXUTIME time of last uerror event
244 (F4) SIGNED 4 SSXATIME time of last aerror event
248 (F8) SIGNED 4 SSXSZNEW size of DS trigger table
252 (FC) SIGNED 4 * reserved
256 (100) SIGNED 4 SSXRTOKA addr space res mgr token
260 (104) SIGNED 4 SSXRTOKT task level res mgr token
264 (108) SIGNED 4 SSX_PIF_CW pif cw base year
268 (10C) CHARACTER 6 SSX_PIF_HD pif high date format
274 (112) CHARACTER 5 SSXCLNJOB stand alone jobname prefix
279 (117) CHARACTER 1 * reserved

              OPC Queue Addresses

Offsets
Dec Hex Type Len Name (Dim) Description
280 (118) CHARACTER 104 SSXQTABLE OPC queue addresses
280 (118) ADDRESS 4 * (26) array of queue addresses

              OPC Queue Server blocks

Offsets
Dec Hex Type Len Name (Dim) Description
384 (180) CHARACTER 48 SSXQUES (26) queue server blocks mapped by dclque
1632 (660) CHARACTER 32 * reserved slack space
1664 (680) CHARACTER SSXEND end of ssx


   OPC Queue array mapping
   When adding a new queue pointer do not reuse a used array entry
   The maximum array index that can be used is defined by ssxnumq
   Increased ssxnumq for future development

Offsets
Dec Hex Type Len Name (Dim) Description
280 (118) STRUCTURE 104 SSXQPTRS array of queue addresses
280 (118) ADDRESS 4 * reserved by event writer 1
284 (11C) ADDRESS 4 SSXGENQ gen service queue 2
288 (120) ADDRESS 4 SSXJCCQ jcc service queue 3
292 (124) ADDRESS 4 SSXMGRQ event mgr queue 4
296 (128) ADDRESS 4 SSXMSGQ major msg queue 5
300 (12C) ADDRESS 4 SSXAPPQ appc queue 6
304 (130) ADDRESS 4 SSXRTRQ router queue 7
308 (134) ADDRESS 4 SSXTIPQ tcpip queue (ex CatMgt) 8
312 (138) ADDRESS 4 SSXSUBQ job submit queue 9
316 (13C) ADDRESS 4 SSXNCFQ ncf queue 10
320 (140) ADDRESS 4 SSXEXQ exa queue 11
324 (144) ADDRESS 4 * free 12
328 (148) ADDRESS 4 SSXRODQ rodm queue 13
332 (14C) ADDRESS 4 SSXATRQ appc tracker queue 14
336 (150) ADDRESS 4 SSXSRVQ Server queue 15
340 (154) ADDRESS 4 SSXARCQ FL task queue 16
344 (158) ADDRESS 4 SSXPSUQ PSU task queue 17
348 (15C) ADDRESS 4 SSXTWSQ TWS task queue 18
352 (160) ADDRESS 4 SSXMONQ MON task queue 19
356 (164) ADDRESS 4 SSXCPHQ CPH task queue 20
360 (168) ADDRESS 4 SSXMAJQ major queue 21
364 (16C) ADDRESS 4 SSXHTTQ HTTP task queue 22
368 (170) ADDRESS 4 SSXBTPQ BT task queue 23
372 (174) ADDRESS 4 SSXBKPQ BKP task queue 24
376 (178) ADDRESS 4 * (2) free for future 25-26

  
   Some SSX constants
  

Offsets
Dec Hex Type Len Name (Dim) Description
0 (0) STRUCTURE 24 SSXSDEPF SDEPFILTER options
0 (0) SIGNED 2 SSXSDSTART - start point (offset)
2 (2) SIGNED 2 SSXSDLEN - value length
4 (4) CHARACTER 20 SSXSDVAL - value