Programming Interface Information: This information is NOT intended to be used as Programming Interfaces of z/VM.

#### DLSBK

Prolog

Control Block Contents
DLSBK DSECT

Storage Layout

Cross Reference (Contains links to field and bit definitions)

#### DLSBK Prolog

     Name       : HCPDLSBK
     Description: Data Link State Block
     DSECT      : DLSBK
     Function   : This DSECT maps the definitions of state of
                  the data link definition for a trace id.
     Located by : TXCCM  -> TRC
                  TRCDLSBK -> DLSBK
                  <DLSFWD -> DLSBK, until DLSFWD = 0>
     Created by : HCPTXF
     Deleted by : HCPTXF  HCPTXD

#### DLSBK Control Block Content

#### DLSBK DSECT

    Hex   Dec Type/Val   Lng Label (dup)    Comments
    ---- ---- --------- ---- -------------- --------
    0000    0 Structure      DLSBK          Data Link State Block
    0000    0 Address      4 DLSFWD         Forward pointer
    0004    4 Signed       4 DLSLEVEL       Nesting Level
    0008    8 Signed       4 DLSSTATE       State
    000C   12 Signed       4 DLSIFOFF       Offset from TRCBK of this IF
                                            statement. The offset of the ELSE
                                            or ENDIF clause for this IF
                                            statment will be stored here.
    0010   16 Signed       4 DLSELOFF       Offset from TRCBK of this ELSE
                                            statement. The offset of the
                                            ENDIF clause for this IF statment
                                            will be stored here.
              00000014       DLSSIZE        *-DLSBK Length of 1 entry
              00000003       DLSSIZD        (*-DLSBK+7)/8 Length in Double
                                            words

#### DLSBK Storage Layout

    *** DLSBK - Data Link State Block
    *
    *     +---------------------------+---------------------------+
    *   0 |          DLSFWD           |         DLSLEVEL          |
    *     +---------------------------+---------------------------+
    *   8 |         DLSSTATE          |         DLSIFOFF          |
    *     +---------------------------+---------------------------+
    *  10 |         DLSELOFF          | 14
    *     +---------------------------+
    *
    *** DLSBK - Data Link State Block

#### DLSBK Cross Reference

    Symbol         Dspl Value
    -------------- ---- -----
    DLSELOFF       0010
    DLSFWD         0000
    DLSIFOFF       000C
    DLSLEVEL       0004
    DLSSIZD        0010 00000003
    DLSSIZE        0010 00000014
    DLSSTATE       0008

This information is based on z/VM V6R1.0. Last updated on 18 Feb 2010 at 08:35:40 EDT.
Copyright IBM Corporation, 1990, 2008