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<div class="title">dbus-sysdeps-pthread.c</div> </div>
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<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-sysdeps-pthread.c Implements threads using pthreads (internal to libdbus)</span>
<a name="l00003"></a>00003 <span class="comment"> * </span>
<a name="l00004"></a>00004 <span class="comment"> * Copyright (C) 2002, 2003, 2006 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 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
<a name="l00024"></a>00024 <span class="preprocessor">#include <config.h></span>
<a name="l00025"></a>00025 <span class="preprocessor">#include "dbus-internals.h"</span>
<a name="l00026"></a>00026 <span class="preprocessor">#include "dbus-sysdeps.h"</span>
<a name="l00027"></a>00027 <span class="preprocessor">#include "dbus-threads.h"</span>
<a name="l00028"></a>00028
<a name="l00029"></a>00029 <span class="preprocessor">#include <sys/time.h></span>
<a name="l00030"></a>00030 <span class="preprocessor">#include <pthread.h></span>
<a name="l00031"></a>00031 <span class="preprocessor">#include <string.h></span>
<a name="l00032"></a>00032
<a name="l00033"></a>00033 <span class="preprocessor">#ifdef HAVE_ERRNO_H</span>
<a name="l00034"></a>00034 <span class="preprocessor"></span><span class="preprocessor">#include <errno.h></span>
<a name="l00035"></a>00035 <span class="preprocessor">#endif</span>
<a name="l00036"></a>00036 <span class="preprocessor"></span>
<a name="l00037"></a>00037 <span class="preprocessor">#include <config.h></span>
<a name="l00038"></a>00038
<a name="l00039"></a>00039 <span class="preprocessor">#ifdef HAVE_MONOTONIC_CLOCK</span>
<a name="l00040"></a>00040 <span class="preprocessor"></span><span class="comment">/* Whether we have a "monotonic" clock; i.e. a clock not affected by</span>
<a name="l00041"></a>00041 <span class="comment"> * changes in system time.</span>
<a name="l00042"></a>00042 <span class="comment"> * This is initialized once in check_monotonic_clock below.</span>
<a name="l00043"></a>00043 <span class="comment"> * https://bugs.freedesktop.org/show_bug.cgi?id=18121</span>
<a name="l00044"></a>00044 <span class="comment"> */</span>
<a name="l00045"></a>00045 <span class="keyword">static</span> <a class="code" href="group__DBusTypes.html#ga39c9cb0f3a2a8ad6f55cc4855d035349" title="A boolean, valid values are TRUE and FALSE.">dbus_bool_t</a> have_monotonic_clock = 0;
<a name="l00046"></a>00046 <span class="preprocessor">#endif</span>
<a name="l00047"></a>00047 <span class="preprocessor"></span>
<a name="l00048"></a><a class="code" href="structDBusRMutex.html">00048</a> <span class="keyword">struct </span><a class="code" href="structDBusRMutex.html">DBusRMutex</a> {
<a name="l00049"></a><a class="code" href="structDBusRMutex.html#a9547c6c8e7394e171b68ff7c4567319c">00049</a> pthread_mutex_t <a class="code" href="structDBusRMutex.html#a9547c6c8e7394e171b68ff7c4567319c" title="the lock">lock</a>;
<a name="l00050"></a>00050 };
<a name="l00051"></a>00051
<a name="l00052"></a><a class="code" href="structDBusCMutex.html">00052</a> <span class="keyword">struct </span><a class="code" href="structDBusCMutex.html">DBusCMutex</a> {
<a name="l00053"></a><a class="code" href="structDBusCMutex.html#aee2330c4dab1d863fdb5c52fbcfc0944">00053</a> pthread_mutex_t <a class="code" href="structDBusCMutex.html#aee2330c4dab1d863fdb5c52fbcfc0944" title="the lock">lock</a>;
<a name="l00054"></a>00054 };
<a name="l00055"></a>00055
<a name="l00056"></a><a class="code" href="structDBusCondVar.html">00056</a> <span class="keyword">struct </span><a class="code" href="structDBusCondVar.html">DBusCondVar</a> {
<a name="l00057"></a><a class="code" href="structDBusCondVar.html#a1c1e453c6198b5df982ab2a7582c72d6">00057</a> pthread_cond_t <a class="code" href="structDBusCondVar.html#a1c1e453c6198b5df982ab2a7582c72d6" title="the condition">cond</a>;
<a name="l00058"></a>00058 };
<a name="l00059"></a>00059
<a name="l00060"></a>00060 <span class="preprocessor">#define DBUS_MUTEX(m) ((DBusMutex*) m)</span>
<a name="l00061"></a>00061 <span class="preprocessor"></span><span class="preprocessor">#define DBUS_MUTEX_PTHREAD(m) ((DBusMutexPThread*) m)</span>
<a name="l00062"></a>00062 <span class="preprocessor"></span>
<a name="l00063"></a>00063 <span class="preprocessor">#define DBUS_COND_VAR(c) ((DBusCondVar*) c)</span>
<a name="l00064"></a>00064 <span class="preprocessor"></span><span class="preprocessor">#define DBUS_COND_VAR_PTHREAD(c) ((DBusCondVarPThread*) c)</span>
<a name="l00065"></a>00065 <span class="preprocessor"></span>
<a name="l00066"></a>00066
<a name="l00067"></a>00067 <span class="preprocessor">#ifdef DBUS_DISABLE_ASSERT</span>
<a name="l00068"></a>00068 <span class="preprocessor"></span><span class="comment">/* (tmp != 0) is a no-op usage to silence compiler */</span>
<a name="l00069"></a>00069 <span class="preprocessor">#define PTHREAD_CHECK(func_name, result_or_call) \</span>
<a name="l00070"></a>00070 <span class="preprocessor"> do { int tmp = (result_or_call); if (tmp != 0) {;} } while (0)</span>
<a name="l00071"></a>00071 <span class="preprocessor"></span><span class="preprocessor">#else</span>
<a name="l00072"></a>00072 <span class="preprocessor"></span><span class="preprocessor">#define PTHREAD_CHECK(func_name, result_or_call) do { \</span>
<a name="l00073"></a>00073 <span class="preprocessor"> int tmp = (result_or_call); \</span>
<a name="l00074"></a>00074 <span class="preprocessor"> if (tmp != 0) { \</span>
<a name="l00075"></a>00075 <span class="preprocessor"> _dbus_warn_check_failed ("pthread function %s failed with %d %s in %s\n", \</span>
<a name="l00076"></a>00076 <span class="preprocessor"> func_name, tmp, strerror(tmp), _DBUS_FUNCTION_NAME); \</span>
<a name="l00077"></a>00077 <span class="preprocessor"> } \</span>
<a name="l00078"></a>00078 <span class="preprocessor">} while (0)</span>
<a name="l00079"></a>00079 <span class="preprocessor"></span><span class="preprocessor">#endif </span><span class="comment">/* !DBUS_DISABLE_ASSERT */</span>
<a name="l00080"></a>00080
<a name="l00081"></a>00081 <a class="code" href="structDBusCMutex.html">DBusCMutex</a> *
<a name="l00082"></a>00082 _dbus_platform_cmutex_new (<span class="keywordtype">void</span>)
<a name="l00083"></a>00083 {
<a name="l00084"></a>00084 <a class="code" href="structDBusCMutex.html">DBusCMutex</a> *pmutex;
<a name="l00085"></a>00085 <span class="keywordtype">int</span> result;
<a name="l00086"></a>00086
<a name="l00087"></a>00087 pmutex = <a class="code" href="group__DBusMemory.html#ga54ccb556e7964112a825a7f46c156ca0" title="Safe macro for using dbus_malloc().">dbus_new</a> (<a class="code" href="structDBusCMutex.html">DBusCMutex</a>, 1);
<a name="l00088"></a>00088 <span class="keywordflow">if</span> (pmutex == <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>)
<a name="l00089"></a>00089 <span class="keywordflow">return</span> <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>;
<a name="l00090"></a>00090
<a name="l00091"></a>00091 result = pthread_mutex_init (&pmutex-><a class="code" href="structDBusCMutex.html#aee2330c4dab1d863fdb5c52fbcfc0944" title="the lock">lock</a>, <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>);
<a name="l00092"></a>00092
<a name="l00093"></a>00093 <span class="keywordflow">if</span> (result == ENOMEM || result == EAGAIN)
<a name="l00094"></a>00094 {
<a name="l00095"></a>00095 <a class="code" href="group__DBusMemory.html#ga34e666b19b015035a9a31e53da84b39a" title="Frees a block of memory previously allocated by dbus_malloc() or dbus_malloc0().">dbus_free</a> (pmutex);
<a name="l00096"></a>00096 <span class="keywordflow">return</span> <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>;
<a name="l00097"></a>00097 }
<a name="l00098"></a>00098 <span class="keywordflow">else</span>
<a name="l00099"></a>00099 {
<a name="l00100"></a>00100 PTHREAD_CHECK (<span class="stringliteral">"pthread_mutex_init"</span>, result);
<a name="l00101"></a>00101 }
<a name="l00102"></a>00102
<a name="l00103"></a>00103 <span class="keywordflow">return</span> pmutex;
<a name="l00104"></a>00104 }
<a name="l00105"></a>00105
<a name="l00106"></a>00106 <a class="code" href="structDBusRMutex.html">DBusRMutex</a> *
<a name="l00107"></a>00107 _dbus_platform_rmutex_new (<span class="keywordtype">void</span>)
<a name="l00108"></a>00108 {
<a name="l00109"></a>00109 <a class="code" href="structDBusRMutex.html">DBusRMutex</a> *pmutex;
<a name="l00110"></a>00110 pthread_mutexattr_t mutexattr;
<a name="l00111"></a>00111 <span class="keywordtype">int</span> result;
<a name="l00112"></a>00112
<a name="l00113"></a>00113 pmutex = <a class="code" href="group__DBusMemory.html#ga54ccb556e7964112a825a7f46c156ca0" title="Safe macro for using dbus_malloc().">dbus_new</a> (<a class="code" href="structDBusRMutex.html">DBusRMutex</a>, 1);
<a name="l00114"></a>00114 <span class="keywordflow">if</span> (pmutex == <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>)
<a name="l00115"></a>00115 <span class="keywordflow">return</span> <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>;
<a name="l00116"></a>00116
<a name="l00117"></a>00117 pthread_mutexattr_init (&mutexattr);
<a name="l00118"></a>00118 pthread_mutexattr_settype (&mutexattr, PTHREAD_MUTEX_RECURSIVE);
<a name="l00119"></a>00119 result = pthread_mutex_init (&pmutex-><a class="code" href="structDBusRMutex.html#a9547c6c8e7394e171b68ff7c4567319c" title="the lock">lock</a>, &mutexattr);
<a name="l00120"></a>00120 pthread_mutexattr_destroy (&mutexattr);
<a name="l00121"></a>00121
<a name="l00122"></a>00122 <span class="keywordflow">if</span> (result == ENOMEM || result == EAGAIN)
<a name="l00123"></a>00123 {
<a name="l00124"></a>00124 <a class="code" href="group__DBusMemory.html#ga34e666b19b015035a9a31e53da84b39a" title="Frees a block of memory previously allocated by dbus_malloc() or dbus_malloc0().">dbus_free</a> (pmutex);
<a name="l00125"></a>00125 <span class="keywordflow">return</span> <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>;
<a name="l00126"></a>00126 }
<a name="l00127"></a>00127 <span class="keywordflow">else</span>
<a name="l00128"></a>00128 {
<a name="l00129"></a>00129 PTHREAD_CHECK (<span class="stringliteral">"pthread_mutex_init"</span>, result);
<a name="l00130"></a>00130 }
<a name="l00131"></a>00131
<a name="l00132"></a>00132 <span class="keywordflow">return</span> pmutex;
<a name="l00133"></a>00133 }
<a name="l00134"></a>00134
<a name="l00135"></a>00135 <span class="keywordtype">void</span>
<a name="l00136"></a>00136 _dbus_platform_cmutex_free (<a class="code" href="structDBusCMutex.html">DBusCMutex</a> *mutex)
<a name="l00137"></a>00137 {
<a name="l00138"></a>00138 PTHREAD_CHECK (<span class="stringliteral">"pthread_mutex_destroy"</span>, pthread_mutex_destroy (&mutex-><a class="code" href="structDBusCMutex.html#aee2330c4dab1d863fdb5c52fbcfc0944" title="the lock">lock</a>));
<a name="l00139"></a>00139 <a class="code" href="group__DBusMemory.html#ga34e666b19b015035a9a31e53da84b39a" title="Frees a block of memory previously allocated by dbus_malloc() or dbus_malloc0().">dbus_free</a> (mutex);
<a name="l00140"></a>00140 }
<a name="l00141"></a>00141
<a name="l00142"></a>00142 <span class="keywordtype">void</span>
<a name="l00143"></a>00143 _dbus_platform_rmutex_free (<a class="code" href="structDBusRMutex.html">DBusRMutex</a> *mutex)
<a name="l00144"></a>00144 {
<a name="l00145"></a>00145 PTHREAD_CHECK (<span class="stringliteral">"pthread_mutex_destroy"</span>, pthread_mutex_destroy (&mutex-><a class="code" href="structDBusRMutex.html#a9547c6c8e7394e171b68ff7c4567319c" title="the lock">lock</a>));
<a name="l00146"></a>00146 <a class="code" href="group__DBusMemory.html#ga34e666b19b015035a9a31e53da84b39a" title="Frees a block of memory previously allocated by dbus_malloc() or dbus_malloc0().">dbus_free</a> (mutex);
<a name="l00147"></a>00147 }
<a name="l00148"></a>00148
<a name="l00149"></a>00149 <span class="keywordtype">void</span>
<a name="l00150"></a>00150 _dbus_platform_cmutex_lock (<a class="code" href="structDBusCMutex.html">DBusCMutex</a> *mutex)
<a name="l00151"></a>00151 {
<a name="l00152"></a>00152 PTHREAD_CHECK (<span class="stringliteral">"pthread_mutex_lock"</span>, pthread_mutex_lock (&mutex-><a class="code" href="structDBusCMutex.html#aee2330c4dab1d863fdb5c52fbcfc0944" title="the lock">lock</a>));
<a name="l00153"></a>00153 }
<a name="l00154"></a>00154
<a name="l00155"></a>00155 <span class="keywordtype">void</span>
<a name="l00156"></a>00156 _dbus_platform_rmutex_lock (<a class="code" href="structDBusRMutex.html">DBusRMutex</a> *mutex)
<a name="l00157"></a>00157 {
<a name="l00158"></a>00158 PTHREAD_CHECK (<span class="stringliteral">"pthread_mutex_lock"</span>, pthread_mutex_lock (&mutex-><a class="code" href="structDBusRMutex.html#a9547c6c8e7394e171b68ff7c4567319c" title="the lock">lock</a>));
<a name="l00159"></a>00159 }
<a name="l00160"></a>00160
<a name="l00161"></a>00161 <span class="keywordtype">void</span>
<a name="l00162"></a>00162 _dbus_platform_cmutex_unlock (<a class="code" href="structDBusCMutex.html">DBusCMutex</a> *mutex)
<a name="l00163"></a>00163 {
<a name="l00164"></a>00164 PTHREAD_CHECK (<span class="stringliteral">"pthread_mutex_unlock"</span>, pthread_mutex_unlock (&mutex-><a class="code" href="structDBusCMutex.html#aee2330c4dab1d863fdb5c52fbcfc0944" title="the lock">lock</a>));
<a name="l00165"></a>00165 }
<a name="l00166"></a>00166
<a name="l00167"></a>00167 <span class="keywordtype">void</span>
<a name="l00168"></a>00168 _dbus_platform_rmutex_unlock (<a class="code" href="structDBusRMutex.html">DBusRMutex</a> *mutex)
<a name="l00169"></a>00169 {
<a name="l00170"></a>00170 PTHREAD_CHECK (<span class="stringliteral">"pthread_mutex_unlock"</span>, pthread_mutex_unlock (&mutex-><a class="code" href="structDBusRMutex.html#a9547c6c8e7394e171b68ff7c4567319c" title="the lock">lock</a>));
<a name="l00171"></a>00171 }
<a name="l00172"></a>00172
<a name="l00173"></a>00173 <a class="code" href="structDBusCondVar.html">DBusCondVar</a> *
<a name="l00174"></a>00174 _dbus_platform_condvar_new (<span class="keywordtype">void</span>)
<a name="l00175"></a>00175 {
<a name="l00176"></a>00176 <a class="code" href="structDBusCondVar.html">DBusCondVar</a> *pcond;
<a name="l00177"></a>00177 pthread_condattr_t attr;
<a name="l00178"></a>00178 <span class="keywordtype">int</span> result;
<a name="l00179"></a>00179
<a name="l00180"></a>00180 pcond = <a class="code" href="group__DBusMemory.html#ga54ccb556e7964112a825a7f46c156ca0" title="Safe macro for using dbus_malloc().">dbus_new</a> (<a class="code" href="structDBusCondVar.html">DBusCondVar</a>, 1);
<a name="l00181"></a>00181 <span class="keywordflow">if</span> (pcond == <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>)
<a name="l00182"></a>00182 <span class="keywordflow">return</span> <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>;
<a name="l00183"></a>00183
<a name="l00184"></a>00184 pthread_condattr_init (&attr);
<a name="l00185"></a>00185 <span class="preprocessor">#ifdef HAVE_MONOTONIC_CLOCK</span>
<a name="l00186"></a>00186 <span class="preprocessor"></span> <span class="keywordflow">if</span> (have_monotonic_clock)
<a name="l00187"></a>00187 pthread_condattr_setclock (&attr, CLOCK_MONOTONIC);
<a name="l00188"></a>00188 <span class="preprocessor">#endif</span>
<a name="l00189"></a>00189 <span class="preprocessor"></span>
<a name="l00190"></a>00190 result = pthread_cond_init (&pcond-><a class="code" href="structDBusCondVar.html#a1c1e453c6198b5df982ab2a7582c72d6" title="the condition">cond</a>, &attr);
<a name="l00191"></a>00191 pthread_condattr_destroy (&attr);
<a name="l00192"></a>00192
<a name="l00193"></a>00193 <span class="keywordflow">if</span> (result == EAGAIN || result == ENOMEM)
<a name="l00194"></a>00194 {
<a name="l00195"></a>00195 <a class="code" href="group__DBusMemory.html#ga34e666b19b015035a9a31e53da84b39a" title="Frees a block of memory previously allocated by dbus_malloc() or dbus_malloc0().">dbus_free</a> (pcond);
<a name="l00196"></a>00196 <span class="keywordflow">return</span> <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>;
<a name="l00197"></a>00197 }
<a name="l00198"></a>00198 <span class="keywordflow">else</span>
<a name="l00199"></a>00199 {
<a name="l00200"></a>00200 PTHREAD_CHECK (<span class="stringliteral">"pthread_cond_init"</span>, result);
<a name="l00201"></a>00201 }
<a name="l00202"></a>00202
<a name="l00203"></a>00203 <span class="keywordflow">return</span> pcond;
<a name="l00204"></a>00204 }
<a name="l00205"></a>00205
<a name="l00206"></a>00206 <span class="keywordtype">void</span>
<a name="l00207"></a>00207 _dbus_platform_condvar_free (<a class="code" href="structDBusCondVar.html">DBusCondVar</a> *cond)
<a name="l00208"></a>00208 {
<a name="l00209"></a>00209 PTHREAD_CHECK (<span class="stringliteral">"pthread_cond_destroy"</span>, pthread_cond_destroy (&cond-><a class="code" href="structDBusCondVar.html#a1c1e453c6198b5df982ab2a7582c72d6" title="the condition">cond</a>));
<a name="l00210"></a>00210 <a class="code" href="group__DBusMemory.html#ga34e666b19b015035a9a31e53da84b39a" title="Frees a block of memory previously allocated by dbus_malloc() or dbus_malloc0().">dbus_free</a> (cond);
<a name="l00211"></a>00211 }
<a name="l00212"></a>00212
<a name="l00213"></a>00213 <span class="keywordtype">void</span>
<a name="l00214"></a>00214 _dbus_platform_condvar_wait (<a class="code" href="structDBusCondVar.html">DBusCondVar</a> *cond,
<a name="l00215"></a>00215 <a class="code" href="structDBusCMutex.html">DBusCMutex</a> *mutex)
<a name="l00216"></a>00216 {
<a name="l00217"></a>00217 PTHREAD_CHECK (<span class="stringliteral">"pthread_cond_wait"</span>, pthread_cond_wait (&cond-><a class="code" href="structDBusCondVar.html#a1c1e453c6198b5df982ab2a7582c72d6" title="the condition">cond</a>, &mutex-><a class="code" href="structDBusCMutex.html#aee2330c4dab1d863fdb5c52fbcfc0944" title="the lock">lock</a>));
<a name="l00218"></a>00218 }
<a name="l00219"></a>00219
<a name="l00220"></a>00220 <a class="code" href="group__DBusTypes.html#ga39c9cb0f3a2a8ad6f55cc4855d035349" title="A boolean, valid values are TRUE and FALSE.">dbus_bool_t</a>
<a name="l00221"></a>00221 _dbus_platform_condvar_wait_timeout (<a class="code" href="structDBusCondVar.html">DBusCondVar</a> *cond,
<a name="l00222"></a>00222 <a class="code" href="structDBusCMutex.html">DBusCMutex</a> *mutex,
<a name="l00223"></a>00223 <span class="keywordtype">int</span> timeout_milliseconds)
<a name="l00224"></a>00224 {
<a name="l00225"></a>00225 <span class="keyword">struct </span>timeval time_now;
<a name="l00226"></a>00226 <span class="keyword">struct </span>timespec end_time;
<a name="l00227"></a>00227 <span class="keywordtype">int</span> result;
<a name="l00228"></a>00228
<a name="l00229"></a>00229 <span class="preprocessor">#ifdef HAVE_MONOTONIC_CLOCK</span>
<a name="l00230"></a>00230 <span class="preprocessor"></span> <span class="keywordflow">if</span> (have_monotonic_clock)
<a name="l00231"></a>00231 {
<a name="l00232"></a>00232 <span class="keyword">struct </span>timespec monotonic_timer;
<a name="l00233"></a>00233 clock_gettime (CLOCK_MONOTONIC,&monotonic_timer);
<a name="l00234"></a>00234 time_now.tv_sec = monotonic_timer.tv_sec;
<a name="l00235"></a>00235 time_now.tv_usec = monotonic_timer.tv_nsec / 1000;
<a name="l00236"></a>00236 }
<a name="l00237"></a>00237 <span class="keywordflow">else</span>
<a name="l00238"></a>00238 <span class="comment">/* This else falls through to gettimeofday */</span>
<a name="l00239"></a>00239 <span class="preprocessor">#endif</span>
<a name="l00240"></a>00240 <span class="preprocessor"></span> gettimeofday (&time_now, <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>);
<a name="l00241"></a>00241
<a name="l00242"></a>00242 end_time.tv_sec = time_now.tv_sec + timeout_milliseconds / 1000;
<a name="l00243"></a>00243 end_time.tv_nsec = (time_now.tv_usec + (timeout_milliseconds % 1000) * 1000) * 1000;
<a name="l00244"></a>00244 <span class="keywordflow">if</span> (end_time.tv_nsec > 1000*1000*1000)
<a name="l00245"></a>00245 {
<a name="l00246"></a>00246 end_time.tv_sec += 1;
<a name="l00247"></a>00247 end_time.tv_nsec -= 1000*1000*1000;
<a name="l00248"></a>00248 }
<a name="l00249"></a>00249
<a name="l00250"></a>00250 result = pthread_cond_timedwait (&cond-><a class="code" href="structDBusCondVar.html#a1c1e453c6198b5df982ab2a7582c72d6" title="the condition">cond</a>, &mutex-><a class="code" href="structDBusCMutex.html#aee2330c4dab1d863fdb5c52fbcfc0944" title="the lock">lock</a>, &end_time);
<a name="l00251"></a>00251
<a name="l00252"></a>00252 <span class="keywordflow">if</span> (result != ETIMEDOUT)
<a name="l00253"></a>00253 {
<a name="l00254"></a>00254 PTHREAD_CHECK (<span class="stringliteral">"pthread_cond_timedwait"</span>, result);
<a name="l00255"></a>00255 }
<a name="l00256"></a>00256
<a name="l00257"></a>00257 <span class="comment">/* return true if we did not time out */</span>
<a name="l00258"></a>00258 <span class="keywordflow">return</span> result != ETIMEDOUT;
<a name="l00259"></a>00259 }
<a name="l00260"></a>00260
<a name="l00261"></a>00261 <span class="keywordtype">void</span>
<a name="l00262"></a>00262 _dbus_platform_condvar_wake_one (<a class="code" href="structDBusCondVar.html">DBusCondVar</a> *cond)
<a name="l00263"></a>00263 {
<a name="l00264"></a>00264 PTHREAD_CHECK (<span class="stringliteral">"pthread_cond_signal"</span>, pthread_cond_signal (&cond-><a class="code" href="structDBusCondVar.html#a1c1e453c6198b5df982ab2a7582c72d6" title="the condition">cond</a>));
<a name="l00265"></a>00265 }
<a name="l00266"></a>00266
<a name="l00267"></a>00267 <span class="keyword">static</span> <span class="keywordtype">void</span>
<a name="l00268"></a>00268 check_monotonic_clock (<span class="keywordtype">void</span>)
<a name="l00269"></a>00269 {
<a name="l00270"></a>00270 <span class="preprocessor">#ifdef HAVE_MONOTONIC_CLOCK</span>
<a name="l00271"></a>00271 <span class="preprocessor"></span> <span class="keyword">struct </span>timespec dummy;
<a name="l00272"></a>00272 <span class="keywordflow">if</span> (clock_getres (CLOCK_MONOTONIC, &dummy) == 0)
<a name="l00273"></a>00273 have_monotonic_clock = <a class="code" href="group__DBusMacros.html#gaa8cecfc5c5c054d2875c03e77b7be15d" title="Expands to "1".">TRUE</a>;
<a name="l00274"></a>00274 <span class="preprocessor">#endif</span>
<a name="l00275"></a>00275 <span class="preprocessor"></span>}
<a name="l00276"></a>00276
<a name="l00277"></a>00277 <a class="code" href="group__DBusTypes.html#ga39c9cb0f3a2a8ad6f55cc4855d035349" title="A boolean, valid values are TRUE and FALSE.">dbus_bool_t</a>
<a name="l00278"></a><a class="code" href="group__DBusSysdeps.html#gae7be34dbffb6458578e86c59a26d4fad">00278</a> <a class="code" href="group__DBusSysdeps.html#gae7be34dbffb6458578e86c59a26d4fad" title="Initialize threads as in dbus_threads_init_default(), appropriately for the platform.">_dbus_threads_init_platform_specific</a> (<span class="keywordtype">void</span>)
<a name="l00279"></a>00279 {
<a name="l00280"></a>00280 <span class="comment">/* These have static variables, and we need to handle both the case</span>
<a name="l00281"></a>00281 <span class="comment"> * where dbus_threads_init() has been called and when it hasn't;</span>
<a name="l00282"></a>00282 <span class="comment"> * so initialize them before any threads are allowed to enter.</span>
<a name="l00283"></a>00283 <span class="comment"> */</span>
<a name="l00284"></a>00284 check_monotonic_clock ();
<a name="l00285"></a>00285
<a name="l00286"></a>00286 <span class="keywordflow">return</span> <a class="code" href="group__DBusMacros.html#gaa8cecfc5c5c054d2875c03e77b7be15d" title="Expands to "1".">TRUE</a>;
<a name="l00287"></a>00287 }
<a name="l00288"></a>00288
<a name="l00289"></a>00289 <span class="keyword">static</span> pthread_mutex_t init_mutex = PTHREAD_MUTEX_INITIALIZER;
<a name="l00290"></a>00290
<a name="l00291"></a>00291 <span class="keywordtype">void</span>
<a name="l00292"></a><a class="code" href="group__DBusSysdeps.html#ga65d32daf6d876dd39b7410f3fa35b591">00292</a> <a class="code" href="group__DBusSysdeps.html#ga65d32daf6d876dd39b7410f3fa35b591" title="Lock a static mutex used to protect _dbus_threads_init_platform_specific().">_dbus_threads_lock_platform_specific</a> (<span class="keywordtype">void</span>)
<a name="l00293"></a>00293 {
<a name="l00294"></a>00294 pthread_mutex_lock (&init_mutex);
<a name="l00295"></a>00295 }
<a name="l00296"></a>00296
<a name="l00297"></a>00297 <span class="keywordtype">void</span>
<a name="l00298"></a><a class="code" href="group__DBusSysdeps.html#ga99c22b80d17ef18fa0a11f3a2a415403">00298</a> <a class="code" href="group__DBusSysdeps.html#ga99c22b80d17ef18fa0a11f3a2a415403" title="Undo _dbus_threads_lock_platform_specific().">_dbus_threads_unlock_platform_specific</a> (<span class="keywordtype">void</span>)
<a name="l00299"></a>00299 {
<a name="l00300"></a>00300 pthread_mutex_unlock (&init_mutex);
<a name="l00301"></a>00301 }
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