Programming Interface Information:
This information is NOT intended to be used as Programming Interfaces of z/VM. |
OPNBK
Control Block Contents
OPNBK DSECT
Cross Reference (Contains links to field and bit definitions)
OPNBK Prolog
NAME : HCPOPNBK DESCRIPTION: ISFC CP Application open control block DSECT : OPNBK FUNCTION : Each OPNBK holds information exchanged between CP application mailboxes when establishing a conversation. LOCATED BY : CREATED BY : CP application mailbox on an OPEN function. DELETED BY : CP application mailbox when releasing an OPEN_C message. SERIALIZED : The ACTBK lock. RELOCATION CONSIDERATIONS : None NOTES : An OPNBK contains information from one CP Application mailbox to a partner mailbox when a conversation is being established. It is used by the CP Application mailbox on OPEN and OPEN_C messages.
OPNBK Control Block Content
OPNBK DSECT
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure OPNBK ISFC CP Application open control block 0000 0 Character 8 OPNAPPLT Target CP application name 0008 8 Character 8 OPNNODET Target node name 0010 16 Character 8 OPNAPPLS Source CP application name 0018 24 Character 8 OPNNODES Source node name 00000004 OPNSIZE (*-OPNBK+7)/8 Size, in doublewords, of OPNBK
OPNBK Storage Layout
*** OPNBK - ISFC CP Application open control block * * +-------------------------------------------------------+ * 0 | OPNAPPLT | * +-------------------------------------------------------+ * 8 | OPNNODET | * +-------------------------------------------------------+ * 10 | OPNAPPLS | * +-------------------------------------------------------+ * 18 | OPNNODES | * +-------------------------------------------------------+ * 20 * *** OPNBK - ISFC CP Application open control block
OPNBK Cross Reference
Symbol Dspl Value -------------- ---- ----- OPNAPPLS 0010 OPNAPPLT 0000 OPNNODES 0018 OPNNODET 0008 OPNSIZE 0018 00000004
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