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<h1>lib/route/sch/prio.c</h1> </div>
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<div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span>
<a name="l00002"></a>00002 <span class="comment"> * lib/route/sch/prio.c PRIO Qdisc/Class</span>
<a name="l00003"></a>00003 <span class="comment"> *</span>
<a name="l00004"></a>00004 <span class="comment"> * This library is free software; you can redistribute it and/or</span>
<a name="l00005"></a>00005 <span class="comment"> * modify it under the terms of the GNU Lesser General Public</span>
<a name="l00006"></a>00006 <span class="comment"> * License as published by the Free Software Foundation version 2.1</span>
<a name="l00007"></a>00007 <span class="comment"> * of the License.</span>
<a name="l00008"></a>00008 <span class="comment"> *</span>
<a name="l00009"></a>00009 <span class="comment"> * Copyright (c) 2003-2006 Thomas Graf <tgraf@suug.ch></span>
<a name="l00010"></a>00010 <span class="comment"> */</span>
<a name="l00011"></a>00011 <span class="comment"></span>
<a name="l00012"></a>00012 <span class="comment">/**</span>
<a name="l00013"></a>00013 <span class="comment"> * @ingroup qdisc_api</span>
<a name="l00014"></a>00014 <span class="comment"> * @defgroup prio (Fast) Prio</span>
<a name="l00015"></a>00015 <span class="comment"> * @brief</span>
<a name="l00016"></a>00016 <span class="comment"> *</span>
<a name="l00017"></a>00017 <span class="comment"> * @par 1) Typical PRIO configuration</span>
<a name="l00018"></a>00018 <span class="comment"> * @code</span>
<a name="l00019"></a>00019 <span class="comment"> * // Specify the maximal number of bands to be used for this PRIO qdisc.</span>
<a name="l00020"></a>00020 <span class="comment"> * rtnl_qdisc_prio_set_bands(qdisc, QDISC_PRIO_DEFAULT_BANDS);</span>
<a name="l00021"></a>00021 <span class="comment"> *</span>
<a name="l00022"></a>00022 <span class="comment"> * // Provide a map assigning each priority to a band number.</span>
<a name="l00023"></a>00023 <span class="comment"> * uint8_t map[] = QDISC_PRIO_DEFAULT_PRIOMAP;</span>
<a name="l00024"></a>00024 <span class="comment"> * rtnl_qdisc_prio_set_priomap(qdisc, map, sizeof(map));</span>
<a name="l00025"></a>00025 <span class="comment"> * @endcode</span>
<a name="l00026"></a>00026 <span class="comment"> * @{</span>
<a name="l00027"></a>00027 <span class="comment"> */</span>
<a name="l00028"></a>00028
<a name="l00029"></a>00029 <span class="preprocessor">#include <netlink-local.h></span>
<a name="l00030"></a>00030 <span class="preprocessor">#include <netlink-tc.h></span>
<a name="l00031"></a>00031 <span class="preprocessor">#include <netlink/netlink.h></span>
<a name="l00032"></a>00032 <span class="preprocessor">#include <netlink/utils.h></span>
<a name="l00033"></a>00033 <span class="preprocessor">#include <netlink/route/qdisc.h></span>
<a name="l00034"></a>00034 <span class="preprocessor">#include <netlink/route/qdisc-modules.h></span>
<a name="l00035"></a>00035 <span class="preprocessor">#include <netlink/route/sch/prio.h></span>
<a name="l00036"></a>00036 <span class="comment"></span>
<a name="l00037"></a>00037 <span class="comment">/** @cond SKIP */</span>
<a name="l00038"></a>00038 <span class="preprocessor">#define SCH_PRIO_ATTR_BANDS 1</span>
<a name="l00039"></a>00039 <span class="preprocessor"></span><span class="preprocessor">#define SCH_PRIO_ATTR_PRIOMAP 2</span>
<a name="l00040"></a>00040 <span class="preprocessor"></span><span class="comment">/** @endcond */</span>
<a name="l00041"></a>00041
<a name="l00042"></a>00042 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keyword">struct </span>rtnl_prio *prio_qdisc(<span class="keyword">struct</span> rtnl_qdisc *qdisc)
<a name="l00043"></a>00043 {
<a name="l00044"></a>00044 <span class="keywordflow">return</span> (<span class="keyword">struct</span> rtnl_prio *) qdisc->q_subdata;
<a name="l00045"></a>00045 }
<a name="l00046"></a>00046
<a name="l00047"></a>00047 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keyword">struct </span>rtnl_prio *prio_alloc(<span class="keyword">struct</span> rtnl_qdisc *qdisc)
<a name="l00048"></a>00048 {
<a name="l00049"></a>00049 <span class="keywordflow">if</span> (!qdisc->q_subdata)
<a name="l00050"></a>00050 qdisc->q_subdata = calloc(1, <span class="keyword">sizeof</span>(<span class="keyword">struct</span> rtnl_prio));
<a name="l00051"></a>00051
<a name="l00052"></a>00052 <span class="keywordflow">return</span> prio_qdisc(qdisc);
<a name="l00053"></a>00053 }
<a name="l00054"></a>00054
<a name="l00055"></a>00055 <span class="keyword">static</span> <span class="keywordtype">int</span> prio_msg_parser(<span class="keyword">struct</span> rtnl_qdisc *qdisc)
<a name="l00056"></a>00056 {
<a name="l00057"></a>00057 <span class="keyword">struct </span>rtnl_prio *prio;
<a name="l00058"></a>00058 <span class="keyword">struct </span>tc_prio_qopt *opt;
<a name="l00059"></a>00059
<a name="l00060"></a>00060 <span class="keywordflow">if</span> (qdisc->q_opts->d_size < <span class="keyword">sizeof</span>(*opt))
<a name="l00061"></a>00061 <span class="keywordflow">return</span> nl_error(EINVAL, <span class="stringliteral">"prio specific option size mismatch"</span>);
<a name="l00062"></a>00062
<a name="l00063"></a>00063 prio = prio_alloc(qdisc);
<a name="l00064"></a>00064 <span class="keywordflow">if</span> (!prio)
<a name="l00065"></a>00065 <span class="keywordflow">return</span> nl_errno(ENOMEM);
<a name="l00066"></a>00066
<a name="l00067"></a>00067 opt = (<span class="keyword">struct </span>tc_prio_qopt *) qdisc->q_opts->d_data;
<a name="l00068"></a>00068 prio->qp_bands = opt->bands;
<a name="l00069"></a>00069 memcpy(prio->qp_priomap, opt->priomap, <span class="keyword">sizeof</span>(prio->qp_priomap));
<a name="l00070"></a>00070 prio->qp_mask = (SCH_PRIO_ATTR_BANDS | SCH_PRIO_ATTR_PRIOMAP);
<a name="l00071"></a>00071
<a name="l00072"></a>00072 <span class="keywordflow">return</span> 0;
<a name="l00073"></a>00073 }
<a name="l00074"></a>00074
<a name="l00075"></a>00075 <span class="keyword">static</span> <span class="keywordtype">void</span> prio_free_data(<span class="keyword">struct</span> rtnl_qdisc *qdisc)
<a name="l00076"></a>00076 {
<a name="l00077"></a>00077 free(qdisc->q_subdata);
<a name="l00078"></a>00078 }
<a name="l00079"></a>00079
<a name="l00080"></a>00080 <span class="keyword">static</span> <span class="keywordtype">int</span> prio_dump_brief(<span class="keyword">struct</span> rtnl_qdisc *qdisc,
<a name="l00081"></a>00081 <span class="keyword">struct</span> <a class="code" href="structnl__dump__params.html" title="Dumping parameters.">nl_dump_params</a> *p, <span class="keywordtype">int</span> line)
<a name="l00082"></a>00082 {
<a name="l00083"></a>00083 <span class="keyword">struct </span>rtnl_prio *prio = prio_qdisc(qdisc);
<a name="l00084"></a>00084
<a name="l00085"></a>00085 <span class="keywordflow">if</span> (prio)
<a name="l00086"></a>00086 dp_dump(p, <span class="stringliteral">" bands %u"</span>, prio->qp_bands);
<a name="l00087"></a>00087
<a name="l00088"></a>00088 <span class="keywordflow">return</span> line;
<a name="l00089"></a>00089 }
<a name="l00090"></a>00090
<a name="l00091"></a>00091 <span class="keyword">static</span> <span class="keywordtype">int</span> prio_dump_full(<span class="keyword">struct</span> rtnl_qdisc *qdisc,
<a name="l00092"></a>00092 <span class="keyword">struct</span> <a class="code" href="structnl__dump__params.html" title="Dumping parameters.">nl_dump_params</a> *p, <span class="keywordtype">int</span> line)
<a name="l00093"></a>00093 {
<a name="l00094"></a>00094 <span class="keyword">struct </span>rtnl_prio *prio = prio_qdisc(qdisc);
<a name="l00095"></a>00095 <span class="keywordtype">int</span> i, hp;
<a name="l00096"></a>00096
<a name="l00097"></a>00097 <span class="keywordflow">if</span> (!prio)
<a name="l00098"></a>00098 <span class="keywordflow">goto</span> ignore;
<a name="l00099"></a>00099
<a name="l00100"></a>00100 dp_dump(p, <span class="stringliteral">"priomap ["</span>);
<a name="l00101"></a>00101
<a name="l00102"></a>00102 <span class="keywordflow">for</span> (i = 0; i <= TC_PRIO_MAX; i++)
<a name="l00103"></a>00103 dp_dump(p, <span class="stringliteral">"%u%s"</span>, prio->qp_priomap[i],
<a name="l00104"></a>00104 i < TC_PRIO_MAX ? <span class="stringliteral">" "</span> : <span class="stringliteral">""</span>);
<a name="l00105"></a>00105
<a name="l00106"></a>00106 dp_dump(p, <span class="stringliteral">"]\n"</span>);
<a name="l00107"></a>00107 dp_new_line(p, line++);
<a name="l00108"></a>00108
<a name="l00109"></a>00109 hp = (((TC_PRIO_MAX/2) + 1) & ~1);
<a name="l00110"></a>00110
<a name="l00111"></a>00111 <span class="keywordflow">for</span> (i = 0; i < hp; i++) {
<a name="l00112"></a>00112 <span class="keywordtype">char</span> a[32];
<a name="l00113"></a>00113 dp_dump(p, <span class="stringliteral">" %18s => %u"</span>,
<a name="l00114"></a>00114 <a class="code" href="group__prio.html#ga0b10d3d945bdd99326641497d17cb120" title="Convert priority to character string.">rtnl_prio2str</a>(i, a, <span class="keyword">sizeof</span>(a)),
<a name="l00115"></a>00115 prio->qp_priomap[i]);
<a name="l00116"></a>00116 <span class="keywordflow">if</span> (hp+i <= TC_PRIO_MAX) {
<a name="l00117"></a>00117 dp_dump(p, <span class="stringliteral">" %18s => %u"</span>,
<a name="l00118"></a>00118 <a class="code" href="group__prio.html#ga0b10d3d945bdd99326641497d17cb120" title="Convert priority to character string.">rtnl_prio2str</a>(hp+i, a, <span class="keyword">sizeof</span>(a)),
<a name="l00119"></a>00119 prio->qp_priomap[hp+i]);
<a name="l00120"></a>00120 <span class="keywordflow">if</span> (i < (hp - 1)) {
<a name="l00121"></a>00121 dp_dump(p, <span class="stringliteral">"\n"</span>);
<a name="l00122"></a>00122 dp_new_line(p, line++);
<a name="l00123"></a>00123 }
<a name="l00124"></a>00124 }
<a name="l00125"></a>00125 }
<a name="l00126"></a>00126
<a name="l00127"></a>00127 ignore:
<a name="l00128"></a>00128 <span class="keywordflow">return</span> line;
<a name="l00129"></a>00129 }
<a name="l00130"></a>00130
<a name="l00131"></a>00131 <span class="keyword">static</span> <span class="keyword">struct </span>nl_msg *prio_get_opts(<span class="keyword">struct</span> rtnl_qdisc *qdisc)
<a name="l00132"></a>00132 {
<a name="l00133"></a>00133 <span class="keyword">struct </span>rtnl_prio *prio;
<a name="l00134"></a>00134 <span class="keyword">struct </span>tc_prio_qopt opts;
<a name="l00135"></a>00135 <span class="keyword">struct </span>nl_msg *msg;
<a name="l00136"></a>00136
<a name="l00137"></a>00137 prio = prio_qdisc(qdisc);
<a name="l00138"></a>00138 <span class="keywordflow">if</span> (!prio ||
<a name="l00139"></a>00139 !(prio->qp_mask & SCH_PRIO_ATTR_PRIOMAP))
<a name="l00140"></a>00140 <span class="keywordflow">goto</span> errout;
<a name="l00141"></a>00141
<a name="l00142"></a>00142 opts.bands = prio->qp_bands;
<a name="l00143"></a>00143 memcpy(opts.priomap, prio->qp_priomap, <span class="keyword">sizeof</span>(opts.priomap));
<a name="l00144"></a>00144
<a name="l00145"></a>00145 msg = <a class="code" href="group__msg.html#ga89c936bdf5e73455bb1640a0eb8a020d" title="Allocate a new netlink message with the default maximum payload size.">nlmsg_alloc</a>();
<a name="l00146"></a>00146 <span class="keywordflow">if</span> (!msg)
<a name="l00147"></a>00147 <span class="keywordflow">goto</span> errout;
<a name="l00148"></a>00148
<a name="l00149"></a>00149 <span class="keywordflow">if</span> (<a class="code" href="group__msg.html#gacc5e5ade5675d041f86c7c8693f7088d" title="Append data to tail of a netlink message.">nlmsg_append</a>(msg, &opts, <span class="keyword">sizeof</span>(opts), NL_DONTPAD) < 0) {
<a name="l00150"></a>00150 <a class="code" href="group__msg.html#ga138ba9bee70553f9fbe7143deacad48c" title="Free a netlink message.">nlmsg_free</a>(msg);
<a name="l00151"></a>00151 <span class="keywordflow">goto</span> errout;
<a name="l00152"></a>00152 }
<a name="l00153"></a>00153
<a name="l00154"></a>00154 <span class="keywordflow">return</span> msg;
<a name="l00155"></a>00155 errout:
<a name="l00156"></a>00156 <span class="keywordflow">return</span> NULL;
<a name="l00157"></a>00157 }
<a name="l00158"></a>00158 <span class="comment"></span>
<a name="l00159"></a>00159 <span class="comment">/**</span>
<a name="l00160"></a>00160 <span class="comment"> * @name Attribute Modification</span>
<a name="l00161"></a>00161 <span class="comment"> * @{</span>
<a name="l00162"></a>00162 <span class="comment"> */</span>
<a name="l00163"></a>00163 <span class="comment"></span>
<a name="l00164"></a>00164 <span class="comment">/**</span>
<a name="l00165"></a>00165 <span class="comment"> * Set number of bands of PRIO qdisc.</span>
<a name="l00166"></a>00166 <span class="comment"> * @arg qdisc PRIO qdisc to be modified.</span>
<a name="l00167"></a>00167 <span class="comment"> * @arg bands New number of bands.</span>
<a name="l00168"></a>00168 <span class="comment"> * @return 0 on success or a negative error code.</span>
<a name="l00169"></a>00169 <span class="comment"> */</span>
<a name="l00170"></a><a class="code" href="group__prio.html#ga80b4956633355616b5e18058b255cf13">00170</a> <span class="keywordtype">int</span> <a class="code" href="group__prio.html#ga80b4956633355616b5e18058b255cf13" title="Set number of bands of PRIO qdisc.">rtnl_qdisc_prio_set_bands</a>(<span class="keyword">struct</span> rtnl_qdisc *qdisc, <span class="keywordtype">int</span> bands)
<a name="l00171"></a>00171 {
<a name="l00172"></a>00172 <span class="keyword">struct </span>rtnl_prio *prio;
<a name="l00173"></a>00173
<a name="l00174"></a>00174 prio = prio_alloc(qdisc);
<a name="l00175"></a>00175 <span class="keywordflow">if</span> (!prio)
<a name="l00176"></a>00176 <span class="keywordflow">return</span> nl_errno(ENOMEM);
<a name="l00177"></a>00177
<a name="l00178"></a>00178 prio->qp_bands = bands;
<a name="l00179"></a>00179 prio->qp_mask |= SCH_PRIO_ATTR_BANDS;
<a name="l00180"></a>00180
<a name="l00181"></a>00181 <span class="keywordflow">return</span> 0;
<a name="l00182"></a>00182 }
<a name="l00183"></a>00183 <span class="comment"></span>
<a name="l00184"></a>00184 <span class="comment">/**</span>
<a name="l00185"></a>00185 <span class="comment"> * Get number of bands of PRIO qdisc.</span>
<a name="l00186"></a>00186 <span class="comment"> * @arg qdisc PRIO qdisc.</span>
<a name="l00187"></a>00187 <span class="comment"> * @return Number of bands or a negative error code.</span>
<a name="l00188"></a>00188 <span class="comment"> */</span>
<a name="l00189"></a><a class="code" href="group__prio.html#ga1cef727802e1e61e8816393325010b38">00189</a> <span class="keywordtype">int</span> <a class="code" href="group__prio.html#ga1cef727802e1e61e8816393325010b38" title="Get number of bands of PRIO qdisc.">rtnl_qdisc_prio_get_bands</a>(<span class="keyword">struct</span> rtnl_qdisc *qdisc)
<a name="l00190"></a>00190 {
<a name="l00191"></a>00191 <span class="keyword">struct </span>rtnl_prio *prio;
<a name="l00192"></a>00192
<a name="l00193"></a>00193 prio = prio_qdisc(qdisc);
<a name="l00194"></a>00194 <span class="keywordflow">if</span> (prio && prio->qp_mask & SCH_PRIO_ATTR_BANDS)
<a name="l00195"></a>00195 <span class="keywordflow">return</span> prio->qp_bands;
<a name="l00196"></a>00196 <span class="keywordflow">else</span>
<a name="l00197"></a>00197 <span class="keywordflow">return</span> nl_errno(ENOMEM);
<a name="l00198"></a>00198 }
<a name="l00199"></a>00199 <span class="comment"></span>
<a name="l00200"></a>00200 <span class="comment">/**</span>
<a name="l00201"></a>00201 <span class="comment"> * Set priomap of the PRIO qdisc.</span>
<a name="l00202"></a>00202 <span class="comment"> * @arg qdisc PRIO qdisc to be modified.</span>
<a name="l00203"></a>00203 <span class="comment"> * @arg priomap New priority mapping.</span>
<a name="l00204"></a>00204 <span class="comment"> * @arg len Length of priomap (# of elements).</span>
<a name="l00205"></a>00205 <span class="comment"> * @return 0 on success or a negative error code.</span>
<a name="l00206"></a>00206 <span class="comment"> */</span>
<a name="l00207"></a><a class="code" href="group__prio.html#ga7680f23d8a51ffe25269583a103043df">00207</a> <span class="keywordtype">int</span> <a class="code" href="group__prio.html#ga7680f23d8a51ffe25269583a103043df" title="Set priomap of the PRIO qdisc.">rtnl_qdisc_prio_set_priomap</a>(<span class="keyword">struct</span> rtnl_qdisc *qdisc, uint8_t priomap[],
<a name="l00208"></a>00208 <span class="keywordtype">int</span> len)
<a name="l00209"></a>00209 {
<a name="l00210"></a>00210 <span class="keyword">struct </span>rtnl_prio *prio;
<a name="l00211"></a>00211 <span class="keywordtype">int</span> i;
<a name="l00212"></a>00212
<a name="l00213"></a>00213 prio = prio_alloc(qdisc);
<a name="l00214"></a>00214 <span class="keywordflow">if</span> (!prio)
<a name="l00215"></a>00215 <span class="keywordflow">return</span> nl_errno(ENOMEM);
<a name="l00216"></a>00216
<a name="l00217"></a>00217 <span class="keywordflow">if</span> (!(prio->qp_mask & SCH_PRIO_ATTR_BANDS))
<a name="l00218"></a>00218 <span class="keywordflow">return</span> nl_error(EINVAL, <span class="stringliteral">"Set number of bands first"</span>);
<a name="l00219"></a>00219
<a name="l00220"></a>00220 <span class="keywordflow">if</span> ((len / <span class="keyword">sizeof</span>(uint8_t)) > (TC_PRIO_MAX+1))
<a name="l00221"></a>00221 <span class="keywordflow">return</span> nl_error(ERANGE, <span class="stringliteral">"priomap length out of bounds"</span>);
<a name="l00222"></a>00222
<a name="l00223"></a>00223 <span class="keywordflow">for</span> (i = 0; i <= TC_PRIO_MAX; i++) {
<a name="l00224"></a>00224 <span class="keywordflow">if</span> (priomap[i] > prio->qp_bands)
<a name="l00225"></a>00225 <span class="keywordflow">return</span> nl_error(ERANGE, <span class="stringliteral">"priomap element %d "</span> \
<a name="l00226"></a>00226 <span class="stringliteral">"out of bounds, increase bands number"</span>);
<a name="l00227"></a>00227 }
<a name="l00228"></a>00228
<a name="l00229"></a>00229 memcpy(prio->qp_priomap, priomap, len);
<a name="l00230"></a>00230 prio->qp_mask |= SCH_PRIO_ATTR_PRIOMAP;
<a name="l00231"></a>00231
<a name="l00232"></a>00232 <span class="keywordflow">return</span> 0;
<a name="l00233"></a>00233 }
<a name="l00234"></a>00234 <span class="comment"></span>
<a name="l00235"></a>00235 <span class="comment">/**</span>
<a name="l00236"></a>00236 <span class="comment"> * Get priomap of a PRIO qdisc.</span>
<a name="l00237"></a>00237 <span class="comment"> * @arg qdisc PRIO qdisc.</span>
<a name="l00238"></a>00238 <span class="comment"> * @return Priority mapping as array of size TC_PRIO_MAX+1</span>
<a name="l00239"></a>00239 <span class="comment"> * or NULL if an error occured.</span>
<a name="l00240"></a>00240 <span class="comment"> */</span>
<a name="l00241"></a><a class="code" href="group__prio.html#gadb3e2051a88661afe1079d82e667a31c">00241</a> uint8_t *<a class="code" href="group__prio.html#gadb3e2051a88661afe1079d82e667a31c" title="Get priomap of a PRIO qdisc.">rtnl_qdisc_prio_get_priomap</a>(<span class="keyword">struct</span> rtnl_qdisc *qdisc)
<a name="l00242"></a>00242 {
<a name="l00243"></a>00243 <span class="keyword">struct </span>rtnl_prio *prio;
<a name="l00244"></a>00244
<a name="l00245"></a>00245 prio = prio_qdisc(qdisc);
<a name="l00246"></a>00246 <span class="keywordflow">if</span> (prio && prio->qp_mask & SCH_PRIO_ATTR_PRIOMAP)
<a name="l00247"></a>00247 <span class="keywordflow">return</span> prio->qp_priomap;
<a name="l00248"></a>00248 <span class="keywordflow">else</span> {
<a name="l00249"></a>00249 nl_errno(ENOENT);
<a name="l00250"></a>00250 <span class="keywordflow">return</span> NULL;
<a name="l00251"></a>00251 }
<a name="l00252"></a>00252 }
<a name="l00253"></a>00253 <span class="comment"></span>
<a name="l00254"></a>00254 <span class="comment">/** @} */</span>
<a name="l00255"></a>00255 <span class="comment"></span>
<a name="l00256"></a>00256 <span class="comment">/**</span>
<a name="l00257"></a>00257 <span class="comment"> * @name Priority Band Translations</span>
<a name="l00258"></a>00258 <span class="comment"> * @{</span>
<a name="l00259"></a>00259 <span class="comment"> */</span>
<a name="l00260"></a>00260
<a name="l00261"></a>00261 <span class="keyword">static</span> <span class="keyword">struct </span>trans_tbl prios[] = {
<a name="l00262"></a>00262 __ADD(TC_PRIO_BESTEFFORT,besteffort)
<a name="l00263"></a>00263 __ADD(TC_PRIO_FILLER,filler)
<a name="l00264"></a>00264 __ADD(TC_PRIO_BULK,bulk)
<a name="l00265"></a>00265 __ADD(TC_PRIO_INTERACTIVE_BULK,interactive_bulk)
<a name="l00266"></a>00266 __ADD(TC_PRIO_INTERACTIVE,interactive)
<a name="l00267"></a>00267 __ADD(TC_PRIO_CONTROL,control)
<a name="l00268"></a>00268 };
<a name="l00269"></a>00269 <span class="comment"></span>
<a name="l00270"></a>00270 <span class="comment">/**</span>
<a name="l00271"></a>00271 <span class="comment"> * Convert priority to character string.</span>
<a name="l00272"></a>00272 <span class="comment"> * @arg prio Priority.</span>
<a name="l00273"></a>00273 <span class="comment"> * @arg buf Destination buffer</span>
<a name="l00274"></a>00274 <span class="comment"> * @arg size Size of destination buffer.</span>
<a name="l00275"></a>00275 <span class="comment"> *</span>
<a name="l00276"></a>00276 <span class="comment"> * Converts a priority to a character string and stores the result in</span>
<a name="l00277"></a>00277 <span class="comment"> * the specified destination buffer.</span>
<a name="l00278"></a>00278 <span class="comment"> *</span>
<a name="l00279"></a>00279 <span class="comment"> * @return Name of priority as character string.</span>
<a name="l00280"></a>00280 <span class="comment"> */</span>
<a name="l00281"></a><a class="code" href="group__prio.html#ga0b10d3d945bdd99326641497d17cb120">00281</a> <span class="keywordtype">char</span> * <a class="code" href="group__prio.html#ga0b10d3d945bdd99326641497d17cb120" title="Convert priority to character string.">rtnl_prio2str</a>(<span class="keywordtype">int</span> prio, <span class="keywordtype">char</span> *buf, <span class="keywordtype">size_t</span> size)
<a name="l00282"></a>00282 {
<a name="l00283"></a>00283 <span class="keywordflow">return</span> __type2str(prio, buf, size, prios, ARRAY_SIZE(prios));
<a name="l00284"></a>00284 }
<a name="l00285"></a>00285 <span class="comment"></span>
<a name="l00286"></a>00286 <span class="comment">/**</span>
<a name="l00287"></a>00287 <span class="comment"> * Convert character string to priority.</span>
<a name="l00288"></a>00288 <span class="comment"> * @arg name Name of priority.</span>
<a name="l00289"></a>00289 <span class="comment"> *</span>
<a name="l00290"></a>00290 <span class="comment"> * Converts the provided character string specifying a priority</span>
<a name="l00291"></a>00291 <span class="comment"> * to the corresponding numeric value.</span>
<a name="l00292"></a>00292 <span class="comment"> *</span>
<a name="l00293"></a>00293 <span class="comment"> * @return Numeric priority or a negative value if no match was found.</span>
<a name="l00294"></a>00294 <span class="comment"> */</span>
<a name="l00295"></a><a class="code" href="group__prio.html#ga39c08fecc9f718ddc8c3de101d76c01b">00295</a> <span class="keywordtype">int</span> <a class="code" href="group__prio.html#ga39c08fecc9f718ddc8c3de101d76c01b" title="Convert character string to priority.">rtnl_str2prio</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *name)
<a name="l00296"></a>00296 {
<a name="l00297"></a>00297 <span class="keywordflow">return</span> __str2type(name, prios, ARRAY_SIZE(prios));
<a name="l00298"></a>00298 }
<a name="l00299"></a>00299 <span class="comment"></span>
<a name="l00300"></a>00300 <span class="comment">/** @} */</span>
<a name="l00301"></a>00301
<a name="l00302"></a>00302 <span class="keyword">static</span> <span class="keyword">struct </span><a class="code" href="structrtnl__qdisc__ops.html" title="Qdisc Operations.">rtnl_qdisc_ops</a> prio_ops = {
<a name="l00303"></a>00303 .<a class="code" href="structrtnl__qdisc__ops.html#a5df5424d29acfa9ae66e7f35a9ca2081" title="Kind/Name of Qdisc.">qo_kind</a> = <span class="stringliteral">"prio"</span>,
<a name="l00304"></a>00304 .qo_msg_parser = prio_msg_parser,
<a name="l00305"></a>00305 .qo_free_data = prio_free_data,
<a name="l00306"></a>00306 .qo_dump[<a class="code" href="group__utils.html#ggacfb5566c73f0965c5241d7d49bc717e9a5597887c080d5ecae358b6065a4048fd" title="Dump object in a brief one-liner.">NL_DUMP_BRIEF</a>] = prio_dump_brief,
<a name="l00307"></a>00307 .qo_dump[<a class="code" href="group__utils.html#ggacfb5566c73f0965c5241d7d49bc717e9a1445106c7af529b2c99ee289fbcd3179" title="Dump all attributes but no statistics.">NL_DUMP_FULL</a>] = prio_dump_full,
<a name="l00308"></a>00308 .qo_get_opts = prio_get_opts,
<a name="l00309"></a>00309 };
<a name="l00310"></a>00310
<a name="l00311"></a>00311 <span class="keyword">static</span> <span class="keyword">struct </span><a class="code" href="structrtnl__qdisc__ops.html" title="Qdisc Operations.">rtnl_qdisc_ops</a> pfifo_fast_ops = {
<a name="l00312"></a>00312 .<a class="code" href="structrtnl__qdisc__ops.html#a5df5424d29acfa9ae66e7f35a9ca2081" title="Kind/Name of Qdisc.">qo_kind</a> = <span class="stringliteral">"pfifo_fast"</span>,
<a name="l00313"></a>00313 .qo_msg_parser = prio_msg_parser,
<a name="l00314"></a>00314 .qo_free_data = prio_free_data,
<a name="l00315"></a>00315 .qo_dump[<a class="code" href="group__utils.html#ggacfb5566c73f0965c5241d7d49bc717e9a5597887c080d5ecae358b6065a4048fd" title="Dump object in a brief one-liner.">NL_DUMP_BRIEF</a>] = prio_dump_brief,
<a name="l00316"></a>00316 .qo_dump[<a class="code" href="group__utils.html#ggacfb5566c73f0965c5241d7d49bc717e9a1445106c7af529b2c99ee289fbcd3179" title="Dump all attributes but no statistics.">NL_DUMP_FULL</a>] = prio_dump_full,
<a name="l00317"></a>00317 .qo_get_opts = prio_get_opts,
<a name="l00318"></a>00318 };
<a name="l00319"></a>00319
<a name="l00320"></a>00320 <span class="keyword">static</span> <span class="keywordtype">void</span> __init prio_init(<span class="keywordtype">void</span>)
<a name="l00321"></a>00321 {
<a name="l00322"></a>00322 <a class="code" href="group__qdisc__api.html#ga52a96211c54bed89f60bc4b106747133" title="Register a qdisc module.">rtnl_qdisc_register</a>(&prio_ops);
<a name="l00323"></a>00323 <a class="code" href="group__qdisc__api.html#ga52a96211c54bed89f60bc4b106747133" title="Register a qdisc module.">rtnl_qdisc_register</a>(&pfifo_fast_ops);
<a name="l00324"></a>00324 }
<a name="l00325"></a>00325
<a name="l00326"></a>00326 <span class="keyword">static</span> <span class="keywordtype">void</span> __exit prio_exit(<span class="keywordtype">void</span>)
<a name="l00327"></a>00327 {
<a name="l00328"></a>00328 <a class="code" href="group__qdisc__api.html#ga0e1c8c70c536964578dd544fd23f80ff" title="Unregister a qdisc module.">rtnl_qdisc_unregister</a>(&prio_ops);
<a name="l00329"></a>00329 <a class="code" href="group__qdisc__api.html#ga0e1c8c70c536964578dd544fd23f80ff" title="Unregister a qdisc module.">rtnl_qdisc_unregister</a>(&pfifo_fast_ops);
<a name="l00330"></a>00330 }
<a name="l00331"></a>00331 <span class="comment"></span>
<a name="l00332"></a>00332 <span class="comment">/** @} */</span>
</pre></div></div>
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