Programming Interface Information:
This information is NOT intended to be used as Programming Interfaces of z/VM. |
IDHBK
Control Block Contents
IDHBK DSECT
Cross Reference (Contains links to field and bit definitions)
IDHBK Prolog
NAME : HCPIDHBK DESCRIPTION: Spool Image Library Directory Header DSECT : IDHBK FUNCTION : To map out the directory header information in a 3800 image library file. LOCATED BY : The directory header is located at the beginning of the first directory record in the file. CREATED BY : IMAGELIB command (HCPNMTBL) IMAGEMOD command (DMSIMAGE) DELETED BY : All the contents of an IMG file, including the IDHBKs, are deleted by the "PURGE IMG" command processing (HCPCSUPU). RELOCATION CONSIDERATIONS : None
IDHBK Control Block Content
IDHBK DSECT
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure IDHBK Spool Image Library Directory Header 0000 0 Character 8 IDHNAME Image Library name 0008 8 Signed 4 IDHLENDR Length of directory record, including header 000C 12 Signed 4 IDHNUMDE Number of directory entries (IDMBKs) 00000010 IDHSIZE *-IDHBK Size in bytes 00000002 IDHSZDW (*-IDHBK+7)/8 Size in doublewords
IDHBK Storage Layout
*** IDHBK - Spool Image Library Directory Header * * +-------------------------------------------------------+ * 0 | IDHNAME | * +---------------------------+---------------------------+ * 8 | IDHLENDR | IDHNUMDE | * +---------------------------+---------------------------+ * 10 * *** IDHBK - Spool Image Library Directory Header
IDHBK Cross Reference
Symbol Dspl Value -------------- ---- ----- IDHLENDR 0008 IDHNAME 0000 IDHNUMDE 000C IDHSIZE 000C 00000010 IDHSZDW 000C 00000002
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