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<h1>dbus-resources.c</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */</span>
<a name="l00002"></a>00002 <span class="comment">/* dbus-resources.c Resource tracking/limits</span>
<a name="l00003"></a>00003 <span class="comment"> *</span>
<a name="l00004"></a>00004 <span class="comment"> * Copyright (C) 2003 Red Hat Inc.</span>
<a name="l00005"></a>00005 <span class="comment"> *</span>
<a name="l00006"></a>00006 <span class="comment"> * Licensed under the Academic Free License version 2.1</span>
<a name="l00007"></a>00007 <span class="comment"> * </span>
<a name="l00008"></a>00008 <span class="comment"> * This program is free software; you can redistribute it and/or modify</span>
<a name="l00009"></a>00009 <span class="comment"> * it under the terms of the GNU General Public License as published by</span>
<a name="l00010"></a>00010 <span class="comment"> * the Free Software Foundation; either version 2 of the License, or</span>
<a name="l00011"></a>00011 <span class="comment"> * (at your option) any later version.</span>
<a name="l00012"></a>00012 <span class="comment"> *</span>
<a name="l00013"></a>00013 <span class="comment"> * This program is distributed in the hope that it will be useful,</span>
<a name="l00014"></a>00014 <span class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="l00015"></a>00015 <span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span>
<a name="l00016"></a>00016 <span class="comment"> * GNU General Public License for more details.</span>
<a name="l00017"></a>00017 <span class="comment"> * </span>
<a name="l00018"></a>00018 <span class="comment"> * You should have received a copy of the GNU General Public License</span>
<a name="l00019"></a>00019 <span class="comment"> * along with this program; if not, write to the Free Software</span>
<a name="l00020"></a>00020 <span class="comment"> * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA</span>
<a name="l00021"></a>00021 <span class="comment"> *</span>
<a name="l00022"></a>00022 <span class="comment"> */</span>
<a name="l00023"></a>00023 <span class="preprocessor">#include <dbus/dbus-resources.h></span>
<a name="l00024"></a>00024 <span class="preprocessor">#include <dbus/dbus-internals.h></span>
<a name="l00025"></a>00025
<a name="l00052"></a><a class="code" href="structDBusCounter.html">00052</a> <span class="keyword">struct </span><a class="code" href="structDBusCounter.html">DBusCounter</a>
<a name="l00053"></a>00053 {
<a name="l00054"></a><a class="code" href="structDBusCounter.html#42ef245097a0b221b58bf200a0a187b0">00054</a> <span class="keywordtype">int</span> <a class="code" href="structDBusCounter.html#42ef245097a0b221b58bf200a0a187b0">refcount</a>;
<a name="l00056"></a><a class="code" href="structDBusCounter.html#212dfa73b9e1bfbb3192ddb076b212bb">00056</a> <span class="keywordtype">long</span> <a class="code" href="structDBusCounter.html#212dfa73b9e1bfbb3192ddb076b212bb">value</a>;
<a name="l00058"></a><a class="code" href="structDBusCounter.html#d43b3732b7766a043b6a5502afd498a6">00058</a> <span class="keywordtype">long</span> <a class="code" href="structDBusCounter.html#d43b3732b7766a043b6a5502afd498a6">notify_guard_value</a>;
<a name="l00059"></a><a class="code" href="structDBusCounter.html#626238ea91d2cf0c93a6eb958f7199b8">00059</a> DBusCounterNotifyFunction <a class="code" href="structDBusCounter.html#626238ea91d2cf0c93a6eb958f7199b8">notify_function</a>;
<a name="l00060"></a><a class="code" href="structDBusCounter.html#592288b6cf62431b3a26aaa6d7c3fb05">00060</a> <span class="keywordtype">void</span> *<a class="code" href="structDBusCounter.html#592288b6cf62431b3a26aaa6d7c3fb05">notify_data</a>;
<a name="l00061"></a>00061 };
<a name="l00062"></a>00062 <span class="comment">/* end of resource limits internals docs */</span>
<a name="l00064"></a>00064
<a name="l00076"></a>00076 <a class="code" href="structDBusCounter.html">DBusCounter</a>*
<a name="l00077"></a><a class="code" href="group__DBusResources.html#g9911dd8fa020299a2b517251ea0be399">00077</a> <a class="code" href="group__DBusResources.html#g9911dd8fa020299a2b517251ea0be399">_dbus_counter_new</a> (<span class="keywordtype">void</span>)
<a name="l00078"></a>00078 {
<a name="l00079"></a>00079 <a class="code" href="structDBusCounter.html">DBusCounter</a> *counter;
<a name="l00080"></a>00080
<a name="l00081"></a>00081 counter = <a class="code" href="group__DBusMemory.html#g54ccb556e7964112a825a7f46c156ca0">dbus_new</a> (<a class="code" href="structDBusCounter.html">DBusCounter</a>, 1);
<a name="l00082"></a>00082 <span class="keywordflow">if</span> (counter == <a class="code" href="group__DBusMacros.html#g070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>)
<a name="l00083"></a>00083 <span class="keywordflow">return</span> <a class="code" href="group__DBusMacros.html#g070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;
<a name="l00084"></a>00084
<a name="l00085"></a>00085 counter-><a class="code" href="structDBusCounter.html#42ef245097a0b221b58bf200a0a187b0">refcount</a> = 1;
<a name="l00086"></a>00086 counter-><a class="code" href="structDBusCounter.html#212dfa73b9e1bfbb3192ddb076b212bb">value</a> = 0;
<a name="l00087"></a>00087
<a name="l00088"></a>00088 counter-><a class="code" href="structDBusCounter.html#d43b3732b7766a043b6a5502afd498a6">notify_guard_value</a> = 0;
<a name="l00089"></a>00089 counter-><a class="code" href="structDBusCounter.html#626238ea91d2cf0c93a6eb958f7199b8">notify_function</a> = <a class="code" href="group__DBusMacros.html#g070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;
<a name="l00090"></a>00090 counter-><a class="code" href="structDBusCounter.html#592288b6cf62431b3a26aaa6d7c3fb05">notify_data</a> = <a class="code" href="group__DBusMacros.html#g070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;
<a name="l00091"></a>00091
<a name="l00092"></a>00092 <span class="keywordflow">return</span> counter;
<a name="l00093"></a>00093 }
<a name="l00094"></a>00094
<a name="l00101"></a>00101 <a class="code" href="structDBusCounter.html">DBusCounter</a> *
<a name="l00102"></a><a class="code" href="group__DBusResources.html#ge93240c77bfb66642453518c9bb90bc4">00102</a> <a class="code" href="group__DBusResources.html#ge93240c77bfb66642453518c9bb90bc4">_dbus_counter_ref</a> (<a class="code" href="structDBusCounter.html">DBusCounter</a> *counter)
<a name="l00103"></a>00103 {
<a name="l00104"></a>00104 <a class="code" href="group__DBusInternalsUtils.html#g129c6c03f011cdc171934d5d386cc797">_dbus_assert</a> (counter-><a class="code" href="structDBusCounter.html#42ef245097a0b221b58bf200a0a187b0">refcount</a> > 0);
<a name="l00105"></a>00105
<a name="l00106"></a>00106 counter-><a class="code" href="structDBusCounter.html#42ef245097a0b221b58bf200a0a187b0">refcount</a> += 1;
<a name="l00107"></a>00107
<a name="l00108"></a>00108 <span class="keywordflow">return</span> counter;
<a name="l00109"></a>00109 }
<a name="l00110"></a>00110
<a name="l00117"></a>00117 <span class="keywordtype">void</span>
<a name="l00118"></a><a class="code" href="group__DBusResources.html#g48d9b53d1a395ab3c4f1846ca569ef3f">00118</a> <a class="code" href="group__DBusResources.html#g48d9b53d1a395ab3c4f1846ca569ef3f">_dbus_counter_unref</a> (<a class="code" href="structDBusCounter.html">DBusCounter</a> *counter)
<a name="l00119"></a>00119 {
<a name="l00120"></a>00120 <a class="code" href="group__DBusInternalsUtils.html#g129c6c03f011cdc171934d5d386cc797">_dbus_assert</a> (counter-><a class="code" href="structDBusCounter.html#42ef245097a0b221b58bf200a0a187b0">refcount</a> > 0);
<a name="l00121"></a>00121
<a name="l00122"></a>00122 counter-><a class="code" href="structDBusCounter.html#42ef245097a0b221b58bf200a0a187b0">refcount</a> -= 1;
<a name="l00123"></a>00123
<a name="l00124"></a>00124 <span class="keywordflow">if</span> (counter-><a class="code" href="structDBusCounter.html#42ef245097a0b221b58bf200a0a187b0">refcount</a> == 0)
<a name="l00125"></a>00125 {
<a name="l00126"></a>00126
<a name="l00127"></a>00127 <a class="code" href="group__DBusMemory.html#g488c6b08cc8c1ddf0203243c4b27a13c">dbus_free</a> (counter);
<a name="l00128"></a>00128 }
<a name="l00129"></a>00129 }
<a name="l00130"></a>00130
<a name="l00140"></a>00140 <span class="keywordtype">void</span>
<a name="l00141"></a><a class="code" href="group__DBusResources.html#gcdde7d91bea4143a35329b246b889670">00141</a> <a class="code" href="group__DBusResources.html#gcdde7d91bea4143a35329b246b889670">_dbus_counter_adjust</a> (<a class="code" href="structDBusCounter.html">DBusCounter</a> *counter,
<a name="l00142"></a>00142 <span class="keywordtype">long</span> delta)
<a name="l00143"></a>00143 {
<a name="l00144"></a>00144 <span class="keywordtype">long</span> old = counter-><a class="code" href="structDBusCounter.html#212dfa73b9e1bfbb3192ddb076b212bb">value</a>;
<a name="l00145"></a>00145
<a name="l00146"></a>00146 counter-><a class="code" href="structDBusCounter.html#212dfa73b9e1bfbb3192ddb076b212bb">value</a> += delta;
<a name="l00147"></a>00147
<a name="l00148"></a>00148 <span class="preprocessor">#if 0</span>
<a name="l00149"></a>00149 <span class="preprocessor"></span> _dbus_verbose (<span class="stringliteral">"Adjusting counter %ld by %ld = %ld\n"</span>,
<a name="l00150"></a>00150 old, delta, counter-><a class="code" href="structDBusCounter.html#212dfa73b9e1bfbb3192ddb076b212bb">value</a>);
<a name="l00151"></a>00151 <span class="preprocessor">#endif</span>
<a name="l00152"></a>00152 <span class="preprocessor"></span>
<a name="l00153"></a>00153 <span class="keywordflow">if</span> (counter-><a class="code" href="structDBusCounter.html#626238ea91d2cf0c93a6eb958f7199b8">notify_function</a> != <a class="code" href="group__DBusMacros.html#g070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a> &&
<a name="l00154"></a>00154 ((old < counter->notify_guard_value &&
<a name="l00155"></a>00155 counter-><a class="code" href="structDBusCounter.html#212dfa73b9e1bfbb3192ddb076b212bb">value</a> >= counter-><a class="code" href="structDBusCounter.html#d43b3732b7766a043b6a5502afd498a6">notify_guard_value</a>) ||
<a name="l00156"></a>00156 (old >= counter-><a class="code" href="structDBusCounter.html#d43b3732b7766a043b6a5502afd498a6">notify_guard_value</a> &&
<a name="l00157"></a>00157 counter-><a class="code" href="structDBusCounter.html#212dfa73b9e1bfbb3192ddb076b212bb">value</a> < counter-><a class="code" href="structDBusCounter.html#d43b3732b7766a043b6a5502afd498a6">notify_guard_value</a>)))
<a name="l00158"></a>00158 (* counter-><a class="code" href="structDBusCounter.html#626238ea91d2cf0c93a6eb958f7199b8">notify_function</a>) (counter, counter-><a class="code" href="structDBusCounter.html#592288b6cf62431b3a26aaa6d7c3fb05">notify_data</a>);
<a name="l00159"></a>00159 }
<a name="l00160"></a>00160
<a name="l00167"></a>00167 <span class="keywordtype">long</span>
<a name="l00168"></a><a class="code" href="group__DBusResources.html#g817729ebefbd486f816b24a1fefc889d">00168</a> <a class="code" href="group__DBusResources.html#g817729ebefbd486f816b24a1fefc889d">_dbus_counter_get_value</a> (<a class="code" href="structDBusCounter.html">DBusCounter</a> *counter)
<a name="l00169"></a>00169 {
<a name="l00170"></a>00170 <span class="keywordflow">return</span> counter-><a class="code" href="structDBusCounter.html#212dfa73b9e1bfbb3192ddb076b212bb">value</a>;
<a name="l00171"></a>00171 }
<a name="l00172"></a>00172
<a name="l00183"></a>00183 <span class="keywordtype">void</span>
<a name="l00184"></a><a class="code" href="group__DBusResources.html#gdf751ffe6ca8c3f81a89df70fc9c93d0">00184</a> <a class="code" href="group__DBusResources.html#gdf751ffe6ca8c3f81a89df70fc9c93d0">_dbus_counter_set_notify</a> (<a class="code" href="structDBusCounter.html">DBusCounter</a> *counter,
<a name="l00185"></a>00185 <span class="keywordtype">long</span> guard_value,
<a name="l00186"></a>00186 DBusCounterNotifyFunction function,
<a name="l00187"></a>00187 <span class="keywordtype">void</span> *user_data)
<a name="l00188"></a>00188 {
<a name="l00189"></a>00189 counter-><a class="code" href="structDBusCounter.html#d43b3732b7766a043b6a5502afd498a6">notify_guard_value</a> = guard_value;
<a name="l00190"></a>00190 counter-><a class="code" href="structDBusCounter.html#626238ea91d2cf0c93a6eb958f7199b8">notify_function</a> = function;
<a name="l00191"></a>00191 counter-><a class="code" href="structDBusCounter.html#592288b6cf62431b3a26aaa6d7c3fb05">notify_data</a> = user_data;
<a name="l00192"></a>00192 }
<a name="l00193"></a>00193 <span class="comment">/* end of resource limits exported API */</span>
</pre></div><hr size="1"><address style="align: right;"><small>Generated on Mon Dec 14 22:26:12 2009 for D-Bus by
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