|
Programming Interface Information:
This information is NOT
intended to be
used as Programming Interfaces of VM/ESA. It is to be used for diagnosis only. |
SDFBK
Cross Reference (Contains links to field and bit definitions)
SDFBK Prolog
NAME : HCPSDFBK
DESCRIPTION: SYSTEM DATA FILE BLOCK
DSECT : SDFBK
FUNCTION : THIS IS THE CONTROL BLOCK THROUGH WHICH USERS OF
SYSTEM DATA FILES COMMUNICATE WITH THE SPOOLING
SUBSYSTEM.
LOCATED BY : THE ADDRESS OF THE BLOCK IS MAINTAINED BY THE ROUTINES
WHICH UTILIZE SYSTEM DATA FILES, AND IS PASSED TO ALL
SYSTEM DATA FILE ROUTINES.
CREATED BY : HCPNSD - WHEN DEFINING A SYSTEM OR SEGMENT
HCPNSG - WHEN SAVING ANY SYSTEM DATA FILE
HCPNSI - WHEN LOADING ANY SYSTEM DATA FILE
HCPNSL - WHEN LOADING A SYSTEM OR SEGMENT
HCPNSN - TO PURGE SYSTEM DATA FILES
HCPNSQ - TO QUERY NSS/DCSS FILES
HCPNSR - WHEN OPENING AN IMAGE LIBRARY
HCPNSS - WHEN SAVING A SYSTEM OR SEGMENT
HCPTRD - AFTER OPENING A SYSTEM TRACE FILE
HCPUCR - WHEN OPENING A UCR FILE
DELETED BY : HCPNSD - AFTER DEFINING A SYSTEM OR SEGMENT
HCPNSG - AFTER SAVING ANY SYSTEM DATA FILE
HCPNSI - AFTER LOADING ANY SYSTEM DATA FILE
HCPNSN - AFTER PURGE SYSTEM DATA FILES
HCPNSP - WHEN PURGING A NSS OR DCSS
HCPNSQ - AFTER QUERYING NSS/DCSS FILES
HCPNSR - AFTER CLOSING AN IMAGE LIBRARY
HCPNSS - AFTER SAVING A SYSTEM OR SEGMENT
HCPTRD - AFTER CLOSING A SYSTEM TRACE FILE
HCPTSG - AFTER CLOSING A SYSTEM TRACE FILE
HCPUCR - AFTER CLOSING A UCR FILE
SDFBK Control Block Content
SDFBK DSECT
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure SDFBK SYSTEM DATA FILE BLOCK 0000 0 Character 8 SDFFN FILE NAME 0008 8 Character 8 SDFFT FILE TYPE 0010 16 Character 8 SDFOWNER USERID OF FILE OWNER 0018 24 Character 8 SDFORIG USERID OF FILE ORIGINATOR 0020 32 Signed 4 SDFRECNT NUMBER OF RECORDS 0024 36 Signed 4 SDFPOS CURRENT RECORD POSITION IN THE FILE 0028 40 Signed 2 SDFRECSZ RECORD SIZE 002A 42 Signed 2 * RESERVED FOR FUTURE IBM USE 002C 44 Character 1 SDFCLASS FILE CLASS 002D 45 Bitstring 1 SDFSTAT FILE STATUS FLAG 1... .... SDFOPENR X'80' FILE IS OPEN FOR READING .1.. .... SDFOPENW X'40' FILE IS OPEN FOR WRITING ..1. .... SDFNORTN X'20' File is marked NORETURN .... 1... SDFPURGE X'08' FILE IS MARKED FOR PENDING PURGE .... .1.. SDFEOF X'04' FILE IS POSITIONED AT END 002E 46 Bitstring 1 SDFTYPE TYPE OF SYSTEM DATA FILE FLAG 00000080 SDFNSS X'80' File is a saved System or Segment. 00000040 SDFIMG X'40' IMAGE LIBRARY FILE 00000020 SDFTRF X'20' System Trace File (TRF) 00000010 SDFDMP X'10' SOFT ABEND DUMP FILE 00000008 SDFUCR X'08' Class Override file (UCR) 00000004 SDFNLS X'04' National Language file (NLS) 00000002 SDFVMDMP X'02' VM DUMP file 002F 47 Bitstring 1 SDFFLAG User data flags 1... .... SDFSECUR X'80' This bit is used to provide security when SPTAPE DUMPing NSS/DCSS files. 0030 48 Bitstring 1 SDFSPTAP Flags for SPTAPE usage. .1.. .... SDFSPTD X'40' SPTAPE currently dumping file. ..1. .... SDFSPTL X'20' SPTAPE currently loading file. 0031 49 Bitstring 1 * RESERVED FOR FUTURE IBM USE 0032 50 Signed 2 SDFIDNUM FILE IDENTIFICATION NUMBER 0034 52 Signed 4 * RESERVED FOR FUTURE IBM USE 0038 56 Signed 4 SDFRDBUF READ BUFFER ADDRESS 003C 60 Signed 4 SDFWRBUF WRITE BUFFER ADDRESS 0040 64 Signed 4 SDFCLTIM FIRST HALF OF TOD CLOCK WHEN THE FILE WAS CLOSED 0044 68 Signed 4 * RESERVED FOR FUTURE IBM USE 0048 72 Dbl-Word 8 SDFSCLAB SPOOL FILE SECLABEL 0050 80 Signed 4 SDFSPOOL (6) RESERVED AREA FOR SPOOL SUBSYSTEM 0068 104 Signed 4 SDFWORK (10) USER WORK AREA 00000012 SDFSIZE (*-SDFBK+7)/8 SIZE OF SDFBK IN DOUBLE WORDS 00000090 SDFBSIZE *-SDFBK SIZE OF SDFBK IN BYTES
SDFBK Storage Layout
*** SDFBK - SYSTEM DATA FILE BLOCK * * +-------------------------------------------------------+ * 0 | SDFFN | * +-------------------------------------------------------+ * 8 | SDFFT | * +-------------------------------------------------------+ * 10 | SDFOWNER | * +-------------------------------------------------------+ * 18 | SDFORIG | * +---------------------------+---------------------------+ * 20 | SDFRECNT | SDFPOS | * +-------------+-------------+------+------+------+------+ * 28 | SDFRECSZ |/////////////|:CLASS|:STAT |:TYPE |:FLAG | * +------+------+-------------+------+------+------+------+ * 30 |:SPTAP|//////| SDFIDNUM |///////////////////////////| * +------+------+-------------+---------------------------+ * 38 | SDFRDBUF | SDFWRBUF | * +---------------------------+---------------------------+ * 40 | SDFCLTIM |///////////////////////////| * +---------------------------+---------------------------+ * 48 | SDFSCLAB | * +-------------------------------------------------------+ * 50 | | * = SDFSPOOL = * | | * +-------------------------------------------------------+ * 68 | | * = SDFWORK = * | | * +-------------------------------------------------------+ * 90 * *** SDFBK - SYSTEM DATA FILE BLOCK
SDFBK Cross Reference
(contains links to field and bit definitions)Symbol Dspl Value -------------- ---- -----SDFBSIZE 0068 00000090
SDFCLASS 002C
SDFCLTIM 0040
SDFDMP 002E 00000010
SDFEOF 002D 04
SDFFLAG 002F
SDFFN 0000
SDFFT 0008
SDFIDNUM 0032
SDFIMG 002E 00000040
SDFNLS 002E 00000004
SDFNORTN 002D 20
SDFNSS 002E 00000080
SDFOPENR 002D 80
SDFOPENW 002D 40
SDFORIG 0018
SDFOWNER 0010
SDFPOS 0024
SDFPURGE 002D 08
SDFRDBUF 0038
SDFRECNT 0020
SDFRECSZ 0028
SDFSCLAB 0048
SDFSECUR 002F 80
SDFSIZE 0068 00000012
SDFSPOOL 0050
SDFSPTAP 0030
SDFSPTD 0030 40
SDFSPTL 0030 20
SDFSTAT 002D
SDFTRF 002E 00000020
SDFTYPE 002E
SDFUCR 002E 00000008
SDFVMDMP 002E 00000002
SDFWORK 0068
SDFWRBUF 003C
Last updated on 3 Aug 1999 at 12:30:27 EDT.
Copyright IBM Corporation, 1990, 1999