Behaviour module for the SNMP agent mib-server data module.
This module defines the behaviour of the SNMP agent mib-server data module. A
snmpa_mib_data compliant module must export the following functions:
The semantics of them and their exact signatures are explained below.
Note that the data extracted from the imported (loaded) mibs are stored partly by the mib-server and partly by the symbolic-store server. See the default mib-server data module,
snmpa_mib_data_tttn for details.
The following functions must be exported from a
mib-server data callback module:
Create a new mib-server data instance.
Close the mib-storage.
Synchronize (write to disc, if possible) the mib-server data. This depends on the
mib_storage option, and will only have an effect if the mib-storage option has an actual disc component (such as dets, or ets with a file).
Load the mib specified by the
Filename argument into the mib-server. The
TeOverride arguments specifies how the mib-server shall handle duplicate mib- and trap- entries.
Unload the mib specified by the
Filename argument from the mib-server.
Find the mib-entry corresponding to the
Oid. If it is a variable, the
Oid must be <Oid for var>.0 and if it is a table,
Oid must be <table>.<entry>.<col>.<any>.
Finds the lexicographically next oid.
Register the subagent, process, handling part of the mib-tree.
Unregister the subagent, handling part of the mib-tree, as specified by the
When unregister the subagent using an
pid() of the process handling the sub-tree is also returned.
Dump the mib-server data to
stdio (Destination =
io) or the specified file.
Retrieve the mib-file to which an given
Retrieve all loaded mib-files.
Retrieve the mib file for the mib.
Retrieve misc info for the mib data.
This is a utility function used to inspect, for instance, memory usage, in a simple way.
Perform a backup of the mib-server data.
Note that its implementation dependant (and also dependent on mib-storage is used) if a backup is possible.
Perform a code-change (upgrade or downgrade).
gen_server for more info regarding the
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Licensed under the Apache License, Version 2.0.