ECBBK

Prolog  

Control Block Contents  
   ECBBK DSECT

Storage Layout  

Cross Reference (Contains links to field and bit definitions)  

ECBBK Prolog

 NAME       : HCPECBBK
 DESCRIPTION: Event Control Block
 DSECT      : ECBBK
 FUNCTION   : Provide basic WAIT / POST Support.
 CREATED BY : Dynamically created by HCPGETST.
 DELETED BY : Deleted by HCPRELST.

ECBBK Control Block Content

ECBBK DSECT

Hex   Dec Type/Val   Lng Label (dup)    Comments
---- ---- --------- ---- -------------- --------
0000    0 Structure      ECBBK          Event Control Block
0000    0 Address      4 ECBNEXT        Pointer to next ECBBK
0004    4 Address      4 ECBOWNER       VMDBK of the ECB owner
0008    8 Dbl-Word     8 ECBWAIT (3)    ECB Suspend Lock
0020   32 Dbl-Word     8 ECBLOCK (3)    ECB Processing Lock
0038   56 Signed       4 ECBPOST        ECB Post Code
          0ECBPOST       ECBTOUT        X'FFFFFFFF' ECB Timeout Code
003C   60 Signed       4 ECBTIMID       ECB Timer ID Test and Set
                                        serializes this byte.
0040   64 Bitstring    1 ECBFLAG        ECB POST Status Flag
          .... ....      ECBPEND        X'00' ECB is pending a POST
          1111 1111      ECBNPEND       X'FF' ECB is NOT pending a post
0041   65 Bitstring    1 *              Reserved for future IBM use
0042   66 Signed       2 *              Reserved for future IBM use
0044   68 Signed       4 *              Reserved for future IBM use
0048   72 Signed       4 *              Reserved for future IBM use
004C   76 Signed       4 *              Reserved for future IBM use
0050   80 Character    1 ECB$END (0)    The end
     Notes : The following assembler equates are defined and can be used but
     do not appear in the control block expansion because they the PLX
     section and PRINT OFF,NOGEN is in effect.

ECBBK Storage Layout

          
*** ECBBK - Event Control Block
*
*     +---------------------------+---------------------------+
*   0 |         ECBNEXT           |         ECBOWNER          |
*     +---------------------------+---------------------------+
*   8 |                                                       |
*     =                       ECBWAIT                         =
*     |                                                       |
*     +-------------------------------------------------------+
*  20 |                                                       |
*     =                       ECBLOCK                         =
*     |                                                       |
*     +---------------------------+---------------------------+
*  38 |         ECBPOST           |         ECBTIMID          |
*     +------+------+-------------+---------------------------+
*  40 |:FLAG |//////|/////////////|///////////////////////////|
*     +------+------+-------------+---------------------------+
*  48 |///////////////////////////|///////////////////////////|
*     +---------------------------+---------------------------+
*
*** ECBBK - Event Control Block

ECBBK Cross Reference

Symbol         Dspl Value
-------------- ---- -----
ECB$END        0050
ECBFLAG        0040
ECBLOCK        0020
ECBNEXT        0000
ECBNPEND       0040 FF
ECBOWNER       0004
ECBPEND        0040 00
ECBPOST        0038
ECBTIMID       003C
ECBTOUT        0038 0ECBPOST
ECBWAIT        0008