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<?xml version="1.0" encoding="iso-8859-1" ?>
<!DOCTYPE erlref SYSTEM "erlref.dtd">
<erlref>
<header>
<copyright>
<year>2013</year><year>2013</year>
<holder>Ericsson AB. All Rights Reserved.</holder>
</copyright>
<legalnotice>
The contents of this file are subject to the Erlang Public License,
Version 1.1, (the "License"); you may not use this file except in
compliance with the License. You should have received a copy of the
Erlang Public License along with this software. If not, it can be
retrieved online at http://www.erlang.org/.
Software distributed under the License is distributed on an "AS IS"
basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
the License for the specific language governing rights and limitations
under the License.
</legalnotice>
<title>snmpa_mib_data</title>
<prepared></prepared>
<responsible></responsible>
<docno></docno>
<approved></approved>
<checked></checked>
<date></date>
<rev></rev>
<file>snmpa_mib_data.xml</file>
</header>
<module>snmpa_mib_data</module>
<modulesummary>Behaviour module for the SNMP agent mib-server
data module.</modulesummary>
<description>
<p>This module defines the behaviour of the SNMP agent mib-server
data module. A <c>snmpa_mib_data</c> compliant module
must export the following functions: </p>
<list type="bulleted">
<item>
<p>new/1</p>
</item>
<item>
<p>close/1</p>
</item>
<item>
<p>sync/1</p>
</item>
<item>
<p>load_mib/4</p>
</item>
<item>
<p>unload_mib/4</p>
</item>
<item>
<p>lookup/2</p>
</item>
<item>
<p>next/3</p>
</item>
<item>
<p>register_subagent/3</p>
</item>
<item>
<p>unregister_subagent/2</p>
</item>
<item>
<p>which_mib/2</p>
</item>
<item>
<p>which_mibs/1</p>
</item>
<item>
<p>whereis_mib/2</p>
</item>
<item>
<p>backup/2</p>
</item>
<item>
<p>dump/2</p>
</item>
<item>
<p>info/1,2</p>
</item>
<item>
<p>code_change/2</p>
</item>
</list>
<p>The semantics of them and their exact signatures are explained
below. </p>
<marker id="handle_error"></marker>
</description>
<funcs>
<func>
<name>new(Storage) -> State</name>
<fsummary>Create new (mib-storage) instance</fsummary>
<type>
<v>Storage = mib_storage()</v>
<v>State = term()</v>
</type>
<desc>
<p>Create a new mib-storage instance. </p>
<marker id="close"></marker>
</desc>
</func>
<func>
<name>close(State) -> void()</name>
<fsummary>Close the mib-storage</fsummary>
<type>
<v>State = term()</v>
</type>
<desc>
<p>Close the mib-storage.</p>
<marker id="sync"></marker>
</desc>
</func>
<func>
<name>sync(State) -> void()</name>
<fsummary>Synchronize to disc</fsummary>
<type>
<v>State = term()</v>
</type>
<desc>
<p>Synchronize (write to disc, if possible) the data to disc.
This depends on the <c>mib_storage</c> 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). </p>
<marker id="load_mib"></marker>
</desc>
</func>
<func>
<name>load_mib(State, Filename, MeOverride, TeOverride) -> {ok, NewState} | {error, Reason}</name>
<fsummary>Load a mib into the mib-server</fsummary>
<type>
<v>State = NewState = term()</v>
<v>Filename = filename()</v>
<v>MeOverride = boolean()</v>
<v>TeOverride = boolean()</v>
<v>Reason = already_loaded | term()</v>
</type>
<desc>
<p>Load the mib specified by the <c>Filename</c> argument
into the mib-server.
The <c>MeOverride</c> and <c>TeOverride</c> arguments
specifies how the mib-server shall handle duplicate mib- and trap-
entries. </p>
<marker id="unload_mib"></marker>
</desc>
</func>
<func>
<name>unload_mib(State, Filename) -> {ok, NewState} | {error, Reason}</name>
<fsummary>Unload mib from the mib-server</fsummary>
<type>
<v>State = NewState = term()</v>
<v>Filename = filename()</v>
<v>Reason = not_loaded | term()</v>
</type>
<desc>
<p>Unload the mib specified by the <c>Filename</c> argument
from the mib-server. </p>
<marker id="lookup"></marker>
</desc>
</func>
<func>
<name>lookup(State, Oid) -> Reply</name>
<fsummary>Find the mib-entry corresponding to the Oid</fsummary>
<type>
<v>State = term()</v>
<v>Reply = {variable, ME} | {table_column, ME, TEOid} | {subagent, SAPid, SAOid} | [false, Reason}</v>
<v>Oid = TEOid = SAOid = oid()</v>
<v>SAPid = pid()</v>
<v>ME = me()</v>
<v>Reason = term()</v>
</type>
<desc>
<p>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>.</p>
<!-- FIX -->
</desc>
</func>
</funcs>
</erlref>
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