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. |
DMSCDB
Cross Reference (Contains links to field and bit definitions)
DMSCDB Prolog
NAME : DMSCDB DESCRIPTION: COMDIR CONTROL BLOCK DSECT : DMSCDB FUNCTION : The DMSCDB macro provides a mapping of the COMDIR control block. The macro contains two DSECTs: DMSCDB and CDBOVL.
DMSCDB Control Block Content
DMSCDB DSECT
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure DMSCDB COMDIR CONTROL BLOCK 0000 0 Character 8 CDBEYEC eyecatcher for COMDIR block 0008 8 Character 24 CDBSYS system level information 0008 8 Character 18 CDBSFID system filespec 0008 8 Character 8 CDBSFN system file name 0010 16 Character 8 CDBSFT system file type 0018 24 Character 2 CDBSFM system file mode 001A 26 Character 1 CDBSFLG system flags 001B 27 Character 1 * 001C 28 Address 4 CDBSBLK ptr to NAMEFSYS SCBLOCK 0020 32 Character 24 CDBUSER user level information 0020 32 Character 18 CDBUFID user filespec 0020 32 Character 8 CDBUFN user file name 0028 40 Character 8 CDBUFT user file type 0030 48 Character 2 CDBUFM user file mode 0032 50 Character 1 CDBUFLG user flags 0033 51 Character 1 * 0034 52 Address 4 CDBUBLK ptr to NAMEFUSE SCBLOCK 0038 56 Character 20 CDBCR 0038 56 Signed 4 CDBCDSCE COMDIR saved C/E ptr 003C 60 Signed 4 CDBUSCE USER saved C/E ptr 0040 64 Signed 4 CDBUSCEL USER saved C/E length 0044 68 Character 8 CDBUSRI USER saved RESID
DMSCDB Storage Layout
*** DMSCDB - COMDIR CONTROL BLOCK * * +-------------------------------------------------------+ * 0 | CDBEYEC | * +-------------------------------------------------------+ * 8 | | * = CDBSYS = * | | * +-------------------------------------------------------+ * 20 * *** DMSCDB - COMDIR CONTROL BLOCK *** Overlay for CDBSYS in DMSCDB * * +-------------------------------------------------------+ * 8 | | * = CDBSFID = * | +-----------------------------------------+ * | | 1A * +-------------+ * *** Overlay for CDBSYS in DMSCDB *** Overlay for CDBSFID in DMSCDB * * +-------------------------------------------------------+ * 8 | CDBSFN | * +-------------------------------------------------------+ * 10 | CDBSFT | * +-------------+------+------+---------------------------+ * 18 | CDBSFM |:SFLG |//////| CDBSBLK | * +-------------+------+------+---------------------------+ * 20 | | * = CDBUSER = * | | * +-------------------------------------------------------+ * 38 * *** Overlay for CDBSFID in DMSCDB *** Overlay for CDBUSER in DMSCDB * * +-------------------------------------------------------+ * 20 | | * = CDBUFID = * | +-----------------------------------------+ * | | 32 * +-------------+ * *** Overlay for CDBUSER in DMSCDB *** Overlay for CDBUFID in DMSCDB * * +-------------------------------------------------------+ * 20 | CDBUFN | * +-------------------------------------------------------+ * 28 | CDBUFT | * +-------------+------+------+---------------------------+ * 30 | CDBUFM |:UFLG |//////| CDBUBLK | * +-------------+------+------+---------------------------+ * 38 | | * = CDBCR = * | +---------------------------+ * | | 4C * +---------------------------+ * *** Overlay for CDBUFID in DMSCDB *** Overlay for CDBCR in DMSCDB * * +---------------------------+---------------------------+ * 38 | CDBCDSCE | CDBUSCE | * +---------------------------+---------------------------+ * 40 | CDBUSCEL | CDBUSRI- | * +---------------------------+---------------------------+ * 48 | -(044) | 4C * +---------------------------+ * *** Overlay for CDBCR in DMSCDB
DMSCDB Cross Reference
(contains links to field and bit definitions)Symbol Dspl Value -------------- ---- -----CDBCDSCE 0038
CDBCR 0038
CDBEYEC 0000
CDBSBLK 001C
CDBSFID 0008
CDBSFLG 001A
CDBSFM 0018
CDBSFN 0008
CDBSFT 0010
CDBSYS 0008
CDBUBLK 0034
CDBUFID 0020
CDBUFLG 0032
CDBUFM 0030
CDBUFN 0020
CDBUFT 0028
CDBUSCE 003C
CDBUSCEL 0040
CDBUSER 0020
CDBUSRI 0044
Last updated on 18 Aug 1999 at 09:19:02 EDT.
Copyright IBM Corporation, 1990, 1999