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ZCOM Tables and Data Structures
Node Entries Table
FLAGS - Node status and internal flags
This
| FLAGS.event - | Set to 1 if there is at least one application that wants to be | |||
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| notified of a status change for the node. |
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| FLAGS.valid - | Set to 1 if this node entry in the table is valid; that is, | |||
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| currently defined and in use. |
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| FLAGS.status - | Set to 1 if this node is currently UP. The status bit indicates | |||
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| whether a remote node is usable. If this bit is not set, the | |||
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| LDM will reject all requests to that node with a |
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| ZENDOWN | |||
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| indicates that the ZNODE daemon is running properly. | |||
| FLAGS.local - | Set to 1 if this node entry in the table represents the local | |||
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| node. |
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| STATS - Statistics for this node |
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| This field is a data structure that contains some statistics on the data | ||||
| traffic for this node. The layout of this structure is shown in Table | ||||
Table | STATS Data Structure |
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Field Name | Field Description |
| Field Type |
| Size |
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| (Bytes) |
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icount | Number of incoming messages | uns.int |
| 4 | |
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ibytes | Number of incoming bytes | uns.int |
| 4 | |
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ocount | Number of outgoing messages | uns.int |
| 4 | |
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obytes | Number of outgoing bytes | uns.int |
| 4 | |
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NDSHZRVRS - Pointer to a list of receivers for node status events.
This field contains a pointer to a linked list of applications to be notified whenever this node changes state. Whenever this node changes state from
Chapter 3 | 55 |