ZCOM Tables and Data Structures
ZCOM Header Structure
Table | ZCOM Header Structure (Continued) |
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HNCARD | Number of interface tables | uns.short | 2 | |
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HNRESP | Number of response records | uns.short | 2 | |
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HNLTQL | Number of LTT queue labels | uns.short | 2 | |
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HNLTSL | Number of LTT storage labels | uns.short | 2 | |
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HPNTBL | Pointer to 1st Node table entry | pointer | 8 | |
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HPZLU | Pointer to 1st Zlu table | pointer | 8 | |
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HPTTBL | Pointer to 1st Logical terminal table | pointer | 8 | |
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HPPTBL | Pointer to 1st Physical terminal table | pointer | 8 | |
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HPIFTP | Pointer to 1st Interface table | pointer |
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HPRESP | Pointer to 1st response record | pointer | 8 | |
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HPQUES | Pointer to 1st Queue header | pointer | 8 | |
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HPBFFR | Pointer to data buffer pool | pointer | 8 | |
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HPQLIM | Default program queue limit (msgs) | uns.int | 4 | |
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HUNACK | Default terminal unack limit (bytes) | uns.int | 4 | |
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HMAXTX | Default pending TX limit (messages) | uns.int | 4 | |
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HIPLIM | Default IFT port TX limit (msgs) | uns.int | 4 | |
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HCTOTAL | Total number of DSC requests | uns.int | 4 | |
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HCSTATE | DSC state | short | 2 | |
| If positive, it is the number of active DSC |
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| requests. If negative, DSC feature is |
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| suspended. |
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HCSWAIT | Number of DSC state waiters | uns.short | 2 | |
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HRDATAQ | Remote data queue header | zqhd_type | 56 | |
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Chapter 3 | 43 |