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  <h1>callback.h</h1>

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    <pre class="fragment">
00001 <span class="comment">/*</span>
00002 <span class="comment"> * callback.c: A generic callback mechanism </span>
00003 <span class="comment"> */</span>
00004 
00005 <span class="preprocessor">#ifndef CALLBACK_H</span>
00006 <span class="preprocessor">#define CALLBACK_H</span>
00007 
00008 <span class="preprocessor">#ifdef __cplusplus</span>
00009 <span class="keyword">extern</span>          <span class="stringliteral">"C"</span> {
00010 <span class="preprocessor">#endif</span>
00011 
00012 <span class="preprocessor">#define MAX_CALLBACK_IDS    2</span>
00013 <span class="preprocessor">#define MAX_CALLBACK_SUBIDS 16</span>
00014 
00015     <span class="comment">/*</span>
00016 <span class="comment">     * Callback Major Types </span>
00017 <span class="comment">     */</span>
00018 <span class="preprocessor">#define SNMP_CALLBACK_LIBRARY     0</span>
00019 <span class="preprocessor">#define SNMP_CALLBACK_APPLICATION 1</span>
00020 
00021     <span class="comment">/*</span>
00022 <span class="comment">     * SNMP_CALLBACK_LIBRARY minor types </span>
00023 <span class="comment">     */</span>
00024 <span class="preprocessor">#define SNMP_CALLBACK_POST_READ_CONFIG          0</span>
00025 <span class="preprocessor">#define SNMP_CALLBACK_STORE_DATA                1</span>
00026 <span class="preprocessor">#define SNMP_CALLBACK_SHUTDOWN                  2</span>
00027 <span class="preprocessor">#define SNMP_CALLBACK_POST_PREMIB_READ_CONFIG   3</span>
00028 <span class="preprocessor">#define SNMP_CALLBACK_LOGGING                   4</span>
00029 <span class="preprocessor">#define SNMP_CALLBACK_SESSION_INIT              5</span>
00030 
00031 
00032     <span class="comment">/*</span>
00033 <span class="comment">     * Callback priority (lower priority numbers called first(</span>
00034 <span class="comment">     */</span>
00035 <span class="preprocessor">#define NETSNMP_CALLBACK_HIGHEST_PRIORITY      -1024 </span>
00036 <span class="preprocessor">#define NETSNMP_CALLBACK_DEFAULT_PRIORITY       0</span>
00037 <span class="preprocessor">#define NETSNMP_CALLBACK_LOWEST_PRIORITY        1024</span>
00038 
00039     <span class="keyword">typedef</span> int     (SNMPCallback) (<span class="keywordtype">int</span> majorID, <span class=
"keywordtype">int</span> minorID,
00040                                     <span class="keywordtype">void</span> *serverarg, <span class=
"keywordtype">void</span> *clientarg);
00041 
00042     <span class="keyword">struct </span>snmp_gen_callback {
00043         SNMPCallback   *sc_callback;
00044         <span class="keywordtype">void</span>           *sc_client_arg;
00045         <span class="keywordtype">int</span>             priority;
00046         <span class="keyword">struct </span>snmp_gen_callback *next;
00047     };
00048 
00049     <span class="comment">/*</span>
00050 <span class="comment">     * function prototypes </span>
00051 <span class="comment">     */</span>
00052     <span class="keywordtype">void</span>            init_callbacks(<span class="keywordtype">void</span>);
00053 
00054     <span class="keywordtype">int</span>             netsnmp_register_callback(<span class=
"keywordtype">int</span> major, <span class="keywordtype">int</span> minor,
00055                                               SNMPCallback * new_callback,
00056                                               <span class="keywordtype">void</span> *arg, <span class=
"keywordtype">int</span> priority);
00057     <span class="keywordtype">int</span>             <a class="code" href=
"group__callback.html#ga8">snmp_register_callback</a>(<span class="keywordtype">int</span> major, <span class=
"keywordtype">int</span> minor,
00058                                            SNMPCallback * new_callback,
00059                                            <span class="keywordtype">void</span> *arg);
00060     <span class="keywordtype">int</span>             <a class="code" href=
"group__callback.html#ga10">snmp_call_callbacks</a>(<span class="keywordtype">int</span> major, <span class=
"keywordtype">int</span> minor,
00061                                         <span class="keywordtype">void</span> *caller_arg);
00062     <span class="keywordtype">int</span>             snmp_callback_available(<span class=
"keywordtype">int</span> major, <span class="keywordtype">int</span> minor);      <span class=
"comment">/* is &gt;1 available */</span>
00063     <span class="keywordtype">int</span>             snmp_count_callbacks(<span class=
"keywordtype">int</span> major, <span class="keywordtype">int</span> minor); <span class=
"comment">/* ret the number registered */</span>
00064     <span class="keywordtype">int</span>             <a class="code" href=
"group__callback.html#ga13">snmp_unregister_callback</a>(<span class="keywordtype">int</span> major, <span class=
"keywordtype">int</span> minor,
00065                                              SNMPCallback * new_callback,
00066                                              <span class="keywordtype">void</span> *arg, <span class=
"keywordtype">int</span> matchargs);
00067     <span class="keywordtype">void</span>            clear_callback (<span class="keywordtype">void</span>);
00068     <span class="keywordtype">int</span>             <a class="code" href=
"group__callback.html#ga14">netsnmp_callback_clear_client_arg</a>(<span class="keywordtype">void</span> *, <span class=
"keywordtype">int</span> i, <span class="keywordtype">int</span> j);
00069 
00070     <span class="keyword">struct </span>snmp_gen_callback *snmp_callback_list(<span class=
"keywordtype">int</span> major, <span class="keywordtype">int</span> minor);
00071 
00072 <span class="preprocessor">#ifdef __cplusplus</span>
00073 }
00074 <span class="preprocessor">#endif</span>
00075 <span class="preprocessor">#endif                          </span><span class="comment">/* CALLBACK_H */</span>
</pre>
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