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<hr><h1>dbus-resources.c</h1><div class="fragment"><pre>00001 <font class="comment">/* -*- mode: C; c-file-style: "gnu" -*- */</font>
00002 <font class="comment">/* dbus-resources.c Resource tracking/limits</font>
00003 <font class="comment"> *</font>
00004 <font class="comment"> * Copyright (C) 2003 Red Hat Inc.</font>
00005 <font class="comment"> *</font>
00006 <font class="comment"> * Licensed under the Academic Free License version 2.0</font>
00007 <font class="comment"> * </font>
00008 <font class="comment"> * This program is free software; you can redistribute it and/or modify</font>
00009 <font class="comment"> * it under the terms of the GNU General Public License as published by</font>
00010 <font class="comment"> * the Free Software Foundation; either version 2 of the License, or</font>
00011 <font class="comment"> * (at your option) any later version.</font>
00012 <font class="comment"> *</font>
00013 <font class="comment"> * This program is distributed in the hope that it will be useful,</font>
00014 <font class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of</font>
00015 <font class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</font>
00016 <font class="comment"> * GNU General Public License for more details.</font>
00017 <font class="comment"> * </font>
00018 <font class="comment"> * You should have received a copy of the GNU General Public License</font>
00019 <font class="comment"> * along with this program; if not, write to the Free Software</font>
00020 <font class="comment"> * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA</font>
00021 <font class="comment"> *</font>
00022 <font class="comment"> */</font>
00023 <font class="preprocessor">#include <dbus/dbus-resources.h></font>
00024 <font class="preprocessor">#include <dbus/dbus-internals.h></font>
00025
<a name="l00052"></a><a class="code" href="structDBusCounter.html">00052</a> <font class="keyword">struct </font><a class="code" href="structDBusCounter.html">DBusCounter</a>
00053 {
<a name="l00054"></a><a class="code" href="structDBusCounter.html#m0">00054</a> <font class="keywordtype">int</font> <a class="code" href="structDBusCounter.html#m0">refcount</a>;
<a name="l00056"></a><a class="code" href="structDBusCounter.html#m1">00056</a> <font class="keywordtype">long</font> <a class="code" href="structDBusCounter.html#m1">value</a>;
<a name="l00058"></a><a class="code" href="structDBusCounter.html#m2">00058</a> <font class="keywordtype">long</font> <a class="code" href="structDBusCounter.html#m2">notify_guard_value</a>;
<a name="l00059"></a><a class="code" href="structDBusCounter.html#m3">00059</a> DBusCounterNotifyFunction <a class="code" href="structDBusCounter.html#m3">notify_function</a>;
<a name="l00060"></a><a class="code" href="structDBusCounter.html#m4">00060</a> <font class="keywordtype">void</font> *<a class="code" href="structDBusCounter.html#m4">notify_data</a>;
00061 };
00062 <font class="comment">/* end of resource limits internals docs */</font>
00064
00076 <a class="code" href="structDBusCounter.html">DBusCounter</a>*
<a name="l00077"></a><a class="code" href="group__DBusResources.html#a0">00077</a> _dbus_counter_new (<font class="keywordtype">void</font>)
00078 {
00079 <a class="code" href="structDBusCounter.html">DBusCounter</a> *counter;
00080
00081 counter = dbus_new (<a class="code" href="structDBusCounter.html">DBusCounter</a>, 1);
00082 <font class="keywordflow">if</font> (counter == NULL)
00083 <font class="keywordflow">return</font> NULL;
00084
00085 counter-><a class="code" href="structDBusCounter.html#m0">refcount</a> = 1;
00086 counter-><a class="code" href="structDBusCounter.html#m1">value</a> = 0;
00087
00088 counter-><a class="code" href="structDBusCounter.html#m2">notify_guard_value</a> = 0;
00089 counter-><a class="code" href="structDBusCounter.html#m3">notify_function</a> = NULL;
00090 counter-><a class="code" href="structDBusCounter.html#m4">notify_data</a> = NULL;
00091
00092 <font class="keywordflow">return</font> counter;
00093 }
00094
00101 <a class="code" href="structDBusCounter.html">DBusCounter</a> *
<a name="l00102"></a><a class="code" href="group__DBusResources.html#a1">00102</a> _dbus_counter_ref (<a class="code" href="structDBusCounter.html">DBusCounter</a> *counter)
00103 {
00104 _dbus_assert (counter-><a class="code" href="structDBusCounter.html#m0">refcount</a> > 0);
00105
00106 counter-><a class="code" href="structDBusCounter.html#m0">refcount</a> += 1;
00107
00108 <font class="keywordflow">return</font> counter;
00109 }
00110
00117 <font class="keywordtype">void</font>
<a name="l00118"></a><a class="code" href="group__DBusResources.html#a2">00118</a> _dbus_counter_unref (<a class="code" href="structDBusCounter.html">DBusCounter</a> *counter)
00119 {
00120 _dbus_assert (counter-><a class="code" href="structDBusCounter.html#m0">refcount</a> > 0);
00121
00122 counter-><a class="code" href="structDBusCounter.html#m0">refcount</a> -= 1;
00123
00124 <font class="keywordflow">if</font> (counter-><a class="code" href="structDBusCounter.html#m0">refcount</a> == 0)
00125 {
00126
00127 dbus_free (counter);
00128 }
00129 }
00130
00140 <font class="keywordtype">void</font>
<a name="l00141"></a><a class="code" href="group__DBusResources.html#a3">00141</a> _dbus_counter_adjust (<a class="code" href="structDBusCounter.html">DBusCounter</a> *counter,
00142 <font class="keywordtype">long</font> delta)
00143 {
00144 <font class="keywordtype">long</font> old = counter-><a class="code" href="structDBusCounter.html#m1">value</a>;
00145
00146 counter-><a class="code" href="structDBusCounter.html#m1">value</a> += delta;
00147
00148 <font class="preprocessor">#if 0</font>
00149 <font class="preprocessor"></font> _dbus_verbose (<font class="stringliteral">"Adjusting counter %ld by %ld = %ld\n"</font>,
00150 old, delta, counter-><a class="code" href="structDBusCounter.html#m1">value</a>);
00151 <font class="preprocessor">#endif</font>
00152 <font class="preprocessor"></font>
00153 <font class="keywordflow">if</font> (counter-><a class="code" href="structDBusCounter.html#m3">notify_function</a> != NULL &&
00154 ((old < counter-><a class="code" href="structDBusCounter.html#m2">notify_guard_value</a> &&
00155 counter-><a class="code" href="structDBusCounter.html#m1">value</a> >= counter-><a class="code" href="structDBusCounter.html#m2">notify_guard_value</a>) ||
00156 (old >= counter-><a class="code" href="structDBusCounter.html#m2">notify_guard_value</a> &&
00157 counter-><a class="code" href="structDBusCounter.html#m1">value</a> < counter-><a class="code" href="structDBusCounter.html#m2">notify_guard_value</a>)))
00158 (* counter-><a class="code" href="structDBusCounter.html#m3">notify_function</a>) (counter, counter-><a class="code" href="structDBusCounter.html#m4">notify_data</a>);
00159 }
00160
00167 <font class="keywordtype">long</font>
<a name="l00168"></a><a class="code" href="group__DBusResources.html#a4">00168</a> _dbus_counter_get_value (<a class="code" href="structDBusCounter.html">DBusCounter</a> *counter)
00169 {
00170 <font class="keywordflow">return</font> counter-><a class="code" href="structDBusCounter.html#m1">value</a>;
00171 }
00172
00183 <font class="keywordtype">void</font>
<a name="l00184"></a><a class="code" href="group__DBusResources.html#a5">00184</a> _dbus_counter_set_notify (<a class="code" href="structDBusCounter.html">DBusCounter</a> *counter,
00185 <font class="keywordtype">long</font> guard_value,
00186 DBusCounterNotifyFunction function,
00187 <font class="keywordtype">void</font> *user_data)
00188 {
00189 counter-><a class="code" href="structDBusCounter.html#m2">notify_guard_value</a> = guard_value;
00190 counter-><a class="code" href="structDBusCounter.html#m3">notify_function</a> = function;
00191 counter-><a class="code" href="structDBusCounter.html#m4">notify_data</a> = user_data;
00192 }
00193 <font class="comment">/* end of resource limits exported API */</font>
</pre></div><hr><address align="right"><small>Generated on Wed Jun 9 05:01:26 2004 for D-BUS by
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