EXRBK Back to Index page
 
Prolog 
Control Block Contents 
   EXRBK DSECT
Storage Layout 
Cross Reference (Contains links to field and bit definitions)
Programming Interface Information:
This information is NOT intended to be
used as Programming Interfaces of z/VM.


  EXRBK Prolog Top of page
 
 NAME       : HCPEXRBK
 DESCRIPTION: exec() remote data map block
 DSECT      : EXRBK
 FUNCTION   : This DSECT maps the data that is passed across
              systems for a remote exec() request.
 LOCATED BY : registers in the exec() modules
 CREATED BY : HCPEXE
 DELETED BY : HCPEXD, HCPEXE
 SERIALIZED : Task ownership
 RELOCATION CONSIDERATIONS : None
 COMMENTS   : The EXRBK is used to send information about
              a request to the target system, and
              information about the status of the request
              back to the originator.
 
 
  EXRBK Control Block Content Top of page
 

 EXRBK DSECT Top of page
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure EXRBK exec() remote data map block 0000 0 Character 4 EXRICTCH Eyecatcher EXRICTCH EXREXRBK C'EXR EXREXRBK ' Valid eyecatcher value 0004 4 Signed 4 EXRTOTLN Total length of the EXRBK, in doublewords. 0008 8 Signed 4 EXRFIXLN Length of the fixed-length portion of the EXRBK, in bytes. 000C 12 Bitstring 1 EXRTYPE Type of request. 000D 13 Bitstring 3 * Reserved for IBM use. 0010 16 Signed 4 EXRREQID Request ID. Used to match this request with the task waiting for its return. 0014 20 Signed 4 EXRRETCD Return code to send to the originating system. 0018 24 Character 8 EXRNODE Node name of the node which originated this request, and to which the reply must be sent. This field is not set by the originating node, but is copied from the CARBK. 0020 32 Address 4 EXRBFLST Address of the first buffer in the chain of data buffers we received from the source. (This is actually the second buffer, since the EXRBK is in the first, but that buffer is no longer in the chain.) 0024 36 Signed 4 EXRTPNLN Length (signed) in bytes of the TPN. 0028 40 Character 64 EXRTPN TPN (target resource name) Length of the block 0000000D EXRSIZE (*-EXRBK+7)/8 EXRBK size in doublewords 00000068 EXRBSIZE *-EXRBK EXRBK size in bytes
 
 
  EXRBK Storage Layout Top of page
 
          
*** EXRBK - exec() remote data map block
*
*     +---------------------------+---------------------------+
*   0 |         EXRICTCH          |         EXRTOTLN          |
*     +---------------------------+------+--------------------+
*   8 |         EXRFIXLN          |:TYPE |////////////////////|
*     +---------------------------+------+--------------------+
*  10 |         EXRREQID          |         EXRRETCD          |
*     +---------------------------+---------------------------+
*  18 |                       EXRNODE                         |
*     +---------------------------+---------------------------+
*  20 |         EXRBFLST          |         EXRTPNLN          |
*     +---------------------------+---------------------------+
*  28 |                                                       |
*     =                        EXRTPN                         =
*     |                                                       |
*     +-------------------------------------------------------+
*  68
*
*** EXRBK - exec() remote data map block
 
 
  EXRBK Cross Reference Top of page
 
 
Symbol         Dspl Value
-------------- ---- -----
EXRBFLST       0020
EXRBSIZE       0028 00000068
EXREXRBK       0000 EXRICTCH
EXRFIXLN       0008
EXRICTCH       0000
EXRNODE        0018
EXRREQID       0010
EXRRETCD       0014
EXRSIZE        0028 0000000D
EXRTOTLN       0004
EXRTPN         0028
EXRTPNLN       0024
EXRTYPE        000C
 
This information is based on z/VM 7.3.0 Last updated on 22 Jun 2022 at 15:50:23 EDT.
Copyright IBM Corporation, 1990, 2022