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ZCOM Tables and Data Structures
ZCOM Header Structure
HLTSTB - Storage label table
The storage label entry indicates the ownership of an application data storage area in the logical terminal table extension area. Each entry is a structure of 16 bytes (zslb_type), as shown in Table
Table | Storage Label Table |
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Field Name | Field Description | Field Type | Size |
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SLBGRP | Appl. grp. number (0 = globally assigned) | uns.short | 2 |
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SLBNAM | Storage label name | char | 8 |
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SLBSZE | Size of the application data in bytes | uns.short | 2 |
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SLBOFF | Offset from the start of the LTT to the application data | short | 2 |
| in the extension area. Therefore, this value is the size |
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| of the LTT plus the offset of the application data from |
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| the start of the LTT extension area. |
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SLBRSV | <reserved>, unused | char | 2 |
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The table is initialized by TTGEN from the
DSC_ercvrs - Dynamic Reconfiguration System Event Receivers pointer (zshaddr_type *)
This field contains a pointer to a linked list of all applications that wish to be notified whenever a ZCOM subsystem dynamic reconfiguration system event message is generated (through the zconfig routine). This field is initialized by TTGEN to zero. It will only contain a value if at least one application has requested notification.
52 | Chapter 3 |