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 <span id="projectnumber">1.8.20</span>
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<div class="title">dbus-spawn.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-spawn.c Wrapper around fork/exec</span>
<a name="l00003"></a>00003 <span class="comment"> * </span>
<a name="l00004"></a>00004 <span class="comment"> * Copyright (C) 2002, 2003, 2004 Red Hat, Inc.</span>
<a name="l00005"></a>00005 <span class="comment"> * Copyright (C) 2003 CodeFactory AB</span>
<a name="l00006"></a>00006 <span class="comment"> *</span>
<a name="l00007"></a>00007 <span class="comment"> * Licensed under the Academic Free License version 2.1</span>
<a name="l00008"></a>00008 <span class="comment"> * </span>
<a name="l00009"></a>00009 <span class="comment"> * This program is free software; you can redistribute it and/or modify</span>
<a name="l00010"></a>00010 <span class="comment"> * it under the terms of the GNU General Public License as published by</span>
<a name="l00011"></a>00011 <span class="comment"> * the Free Software Foundation; either version 2 of the License, or</span>
<a name="l00012"></a>00012 <span class="comment"> * (at your option) any later version.</span>
<a name="l00013"></a>00013 <span class="comment"> *</span>
<a name="l00014"></a>00014 <span class="comment"> * This program is distributed in the hope that it will be useful,</span>
<a name="l00015"></a>00015 <span class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="l00016"></a>00016 <span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span>
<a name="l00017"></a>00017 <span class="comment"> * GNU General Public License for more details.</span>
<a name="l00018"></a>00018 <span class="comment"> * </span>
<a name="l00019"></a>00019 <span class="comment"> * You should have received a copy of the GNU General Public License</span>
<a name="l00020"></a>00020 <span class="comment"> * along with this program; if not, write to the Free Software</span>
<a name="l00021"></a>00021 <span class="comment"> * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA</span>
<a name="l00022"></a>00022 <span class="comment"> *</span>
<a name="l00023"></a>00023 <span class="comment"> */</span>
<a name="l00024"></a>00024
<a name="l00025"></a>00025 <span class="preprocessor">#include <config.h></span>
<a name="l00026"></a>00026
<a name="l00027"></a>00027 <span class="preprocessor">#include "dbus-spawn.h"</span>
<a name="l00028"></a>00028 <span class="preprocessor">#include "dbus-sysdeps-unix.h"</span>
<a name="l00029"></a>00029 <span class="preprocessor">#include "dbus-internals.h"</span>
<a name="l00030"></a>00030 <span class="preprocessor">#include "dbus-test.h"</span>
<a name="l00031"></a>00031 <span class="preprocessor">#include "dbus-protocol.h"</span>
<a name="l00032"></a>00032
<a name="l00033"></a>00033 <span class="preprocessor">#include <unistd.h></span>
<a name="l00034"></a>00034 <span class="preprocessor">#include <fcntl.h></span>
<a name="l00035"></a>00035 <span class="preprocessor">#include <signal.h></span>
<a name="l00036"></a>00036 <span class="preprocessor">#include <sys/wait.h></span>
<a name="l00037"></a>00037 <span class="preprocessor">#include <stdlib.h></span>
<a name="l00038"></a>00038 <span class="preprocessor">#ifdef HAVE_ERRNO_H</span>
<a name="l00039"></a>00039 <span class="preprocessor"></span><span class="preprocessor">#include <errno.h></span>
<a name="l00040"></a>00040 <span class="preprocessor">#endif</span>
<a name="l00041"></a>00041 <span class="preprocessor"></span><span class="preprocessor">#ifdef HAVE_SYSTEMD</span>
<a name="l00042"></a>00042 <span class="preprocessor"></span><span class="preprocessor">#ifdef HAVE_SYSLOG_H</span>
<a name="l00043"></a>00043 <span class="preprocessor"></span><span class="preprocessor">#include <syslog.h></span>
<a name="l00044"></a>00044 <span class="preprocessor">#endif</span>
<a name="l00045"></a>00045 <span class="preprocessor"></span><span class="preprocessor">#include <systemd/sd-journal.h></span>
<a name="l00046"></a>00046 <span class="preprocessor">#endif</span>
<a name="l00047"></a>00047 <span class="preprocessor"></span>
<a name="l00048"></a>00048 <span class="keyword">extern</span> <span class="keywordtype">char</span> **environ;
<a name="l00049"></a>00049
<a name="l00055"></a>00055 <span class="comment">/*</span>
<a name="l00056"></a>00056 <span class="comment"> * I'm pretty sure this whole spawn file could be made simpler,</span>
<a name="l00057"></a>00057 <span class="comment"> * if you thought about it a bit.</span>
<a name="l00058"></a>00058 <span class="comment"> */</span>
<a name="l00059"></a>00059
<a name="l00063"></a><a class="code" href="group__DBusInternalsUtils.html#gaa1d634db87605c2a83f2750ce6052653">00063</a> <span class="keyword">typedef</span> <span class="keyword">enum</span>
<a name="l00064"></a>00064 {
<a name="l00065"></a><a class="code" href="group__DBusInternalsUtils.html#ggaa1d634db87605c2a83f2750ce6052653a105d3aa9ec19f4c060b39c7fafba39ff">00065</a> <a class="code" href="group__DBusInternalsUtils.html#ggaa1d634db87605c2a83f2750ce6052653a105d3aa9ec19f4c060b39c7fafba39ff" title="Read succeeded.">READ_STATUS_OK</a>,
<a name="l00066"></a><a class="code" href="group__DBusInternalsUtils.html#ggaa1d634db87605c2a83f2750ce6052653ad13164fb31fb0b5bc1ec802d09d10411">00066</a> <a class="code" href="group__DBusInternalsUtils.html#ggaa1d634db87605c2a83f2750ce6052653ad13164fb31fb0b5bc1ec802d09d10411" title="Some kind of error.">READ_STATUS_ERROR</a>,
<a name="l00067"></a><a class="code" href="group__DBusInternalsUtils.html#ggaa1d634db87605c2a83f2750ce6052653a7d65492f3f0d09176ac4504987457d23">00067</a> <a class="code" href="group__DBusInternalsUtils.html#ggaa1d634db87605c2a83f2750ce6052653a7d65492f3f0d09176ac4504987457d23" title="EOF returned.">READ_STATUS_EOF</a>
<a name="l00068"></a>00068 } <a class="code" href="group__DBusInternalsUtils.html#gaa1d634db87605c2a83f2750ce6052653" title="Enumeration for status of a read()">ReadStatus</a>;
<a name="l00069"></a>00069
<a name="l00070"></a>00070 <span class="keyword">static</span> <a class="code" href="group__DBusInternalsUtils.html#gaa1d634db87605c2a83f2750ce6052653" title="Enumeration for status of a read()">ReadStatus</a>
<a name="l00071"></a>00071 read_ints (<span class="keywordtype">int</span> fd,
<a name="l00072"></a>00072 <span class="keywordtype">int</span> *buf,
<a name="l00073"></a>00073 <span class="keywordtype">int</span> n_ints_in_buf,
<a name="l00074"></a>00074 <span class="keywordtype">int</span> *n_ints_read,
<a name="l00075"></a>00075 <a class="code" href="structDBusError.html" title="Object representing an exception.">DBusError</a> *error)
<a name="l00076"></a>00076 {
<a name="l00077"></a>00077 <span class="keywordtype">size_t</span> bytes = 0;
<a name="l00078"></a>00078 <a class="code" href="group__DBusInternalsUtils.html#gaa1d634db87605c2a83f2750ce6052653" title="Enumeration for status of a read()">ReadStatus</a> retval;
<a name="l00079"></a>00079
<a name="l00080"></a>00080 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
<a name="l00081"></a>00081
<a name="l00082"></a>00082 retval = <a class="code" href="group__DBusInternalsUtils.html#ggaa1d634db87605c2a83f2750ce6052653a105d3aa9ec19f4c060b39c7fafba39ff" title="Read succeeded.">READ_STATUS_OK</a>;
<a name="l00083"></a>00083
<a name="l00084"></a>00084 <span class="keywordflow">while</span> (<a class="code" href="group__DBusMacros.html#gaa8cecfc5c5c054d2875c03e77b7be15d" title="Expands to "1".">TRUE</a>)
<a name="l00085"></a>00085 {
<a name="l00086"></a>00086 ssize_t chunk;
<a name="l00087"></a>00087 <span class="keywordtype">size_t</span> to_read;
<a name="l00088"></a>00088
<a name="l00089"></a>00089 to_read = <span class="keyword">sizeof</span> (int) * n_ints_in_buf - bytes;
<a name="l00090"></a>00090
<a name="l00091"></a>00091 <span class="keywordflow">if</span> (to_read == 0)
<a name="l00092"></a>00092 <span class="keywordflow">break</span>;
<a name="l00093"></a>00093
<a name="l00094"></a>00094 again:
<a name="l00095"></a>00095
<a name="l00096"></a>00096 chunk = read (fd,
<a name="l00097"></a>00097 ((<span class="keywordtype">char</span>*)buf) + bytes,
<a name="l00098"></a>00098 to_read);
<a name="l00099"></a>00099
<a name="l00100"></a>00100 <span class="keywordflow">if</span> (chunk < 0 && errno == EINTR)
<a name="l00101"></a>00101 <span class="keywordflow">goto</span> again;
<a name="l00102"></a>00102
<a name="l00103"></a>00103 <span class="keywordflow">if</span> (chunk < 0)
<a name="l00104"></a>00104 {
<a name="l00105"></a>00105 <a class="code" href="group__DBusErrors.html#ga89d2ad4bde21f9e0057fac07a79885e3" title="Assigns an error name and message to a DBusError.">dbus_set_error</a> (error,
<a name="l00106"></a>00106 <a class="code" href="group__DBusProtocol.html#gac52e7ce94426443ff385994b539c6c38" title="While starting a new process, something went wrong.">DBUS_ERROR_SPAWN_FAILED</a>,
<a name="l00107"></a>00107 <span class="stringliteral">"Failed to read from child pipe (%s)"</span>,
<a name="l00108"></a>00108 _dbus_strerror (errno));
<a name="l00109"></a>00109
<a name="l00110"></a>00110 retval = <a class="code" href="group__DBusInternalsUtils.html#ggaa1d634db87605c2a83f2750ce6052653ad13164fb31fb0b5bc1ec802d09d10411" title="Some kind of error.">READ_STATUS_ERROR</a>;
<a name="l00111"></a>00111 <span class="keywordflow">break</span>;
<a name="l00112"></a>00112 }
<a name="l00113"></a>00113 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (chunk == 0)
<a name="l00114"></a>00114 {
<a name="l00115"></a>00115 retval = <a class="code" href="group__DBusInternalsUtils.html#ggaa1d634db87605c2a83f2750ce6052653a7d65492f3f0d09176ac4504987457d23" title="EOF returned.">READ_STATUS_EOF</a>;
<a name="l00116"></a>00116 <span class="keywordflow">break</span>; <span class="comment">/* EOF */</span>
<a name="l00117"></a>00117 }
<a name="l00118"></a>00118 <span class="keywordflow">else</span> <span class="comment">/* chunk > 0 */</span>
<a name="l00119"></a>00119 bytes += chunk;
<a name="l00120"></a>00120 }
<a name="l00121"></a>00121
<a name="l00122"></a>00122 *n_ints_read = (int)(bytes / <span class="keyword">sizeof</span>(<span class="keywordtype">int</span>));
<a name="l00123"></a>00123
<a name="l00124"></a>00124 <span class="keywordflow">return</span> retval;
<a name="l00125"></a>00125 }
<a name="l00126"></a>00126
<a name="l00127"></a>00127 <span class="keyword">static</span> <a class="code" href="group__DBusInternalsUtils.html#gaa1d634db87605c2a83f2750ce6052653" title="Enumeration for status of a read()">ReadStatus</a>
<a name="l00128"></a>00128 read_pid (<span class="keywordtype">int</span> fd,
<a name="l00129"></a>00129 pid_t *buf,
<a name="l00130"></a>00130 <a class="code" href="structDBusError.html" title="Object representing an exception.">DBusError</a> *error)
<a name="l00131"></a>00131 {
<a name="l00132"></a>00132 <span class="keywordtype">size_t</span> bytes = 0;
<a name="l00133"></a>00133 <a class="code" href="group__DBusInternalsUtils.html#gaa1d634db87605c2a83f2750ce6052653" title="Enumeration for status of a read()">ReadStatus</a> retval;
<a name="l00134"></a>00134
<a name="l00135"></a>00135 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
<a name="l00136"></a>00136
<a name="l00137"></a>00137 retval = <a class="code" href="group__DBusInternalsUtils.html#ggaa1d634db87605c2a83f2750ce6052653a105d3aa9ec19f4c060b39c7fafba39ff" title="Read succeeded.">READ_STATUS_OK</a>;
<a name="l00138"></a>00138
<a name="l00139"></a>00139 <span class="keywordflow">while</span> (<a class="code" href="group__DBusMacros.html#gaa8cecfc5c5c054d2875c03e77b7be15d" title="Expands to "1".">TRUE</a>)
<a name="l00140"></a>00140 {
<a name="l00141"></a>00141 ssize_t chunk;
<a name="l00142"></a>00142 <span class="keywordtype">size_t</span> to_read;
<a name="l00143"></a>00143
<a name="l00144"></a>00144 to_read = <span class="keyword">sizeof</span> (pid_t) - bytes;
<a name="l00145"></a>00145
<a name="l00146"></a>00146 <span class="keywordflow">if</span> (to_read == 0)
<a name="l00147"></a>00147 <span class="keywordflow">break</span>;
<a name="l00148"></a>00148
<a name="l00149"></a>00149 again:
<a name="l00150"></a>00150
<a name="l00151"></a>00151 chunk = read (fd,
<a name="l00152"></a>00152 ((<span class="keywordtype">char</span>*)buf) + bytes,
<a name="l00153"></a>00153 to_read);
<a name="l00154"></a>00154 <span class="keywordflow">if</span> (chunk < 0 && errno == EINTR)
<a name="l00155"></a>00155 <span class="keywordflow">goto</span> again;
<a name="l00156"></a>00156
<a name="l00157"></a>00157 <span class="keywordflow">if</span> (chunk < 0)
<a name="l00158"></a>00158 {
<a name="l00159"></a>00159 <a class="code" href="group__DBusErrors.html#ga89d2ad4bde21f9e0057fac07a79885e3" title="Assigns an error name and message to a DBusError.">dbus_set_error</a> (error,
<a name="l00160"></a>00160 <a class="code" href="group__DBusProtocol.html#gac52e7ce94426443ff385994b539c6c38" title="While starting a new process, something went wrong.">DBUS_ERROR_SPAWN_FAILED</a>,
<a name="l00161"></a>00161 <span class="stringliteral">"Failed to read from child pipe (%s)"</span>,
<a name="l00162"></a>00162 _dbus_strerror (errno));
<a name="l00163"></a>00163
<a name="l00164"></a>00164 retval = <a class="code" href="group__DBusInternalsUtils.html#ggaa1d634db87605c2a83f2750ce6052653ad13164fb31fb0b5bc1ec802d09d10411" title="Some kind of error.">READ_STATUS_ERROR</a>;
<a name="l00165"></a>00165 <span class="keywordflow">break</span>;
<a name="l00166"></a>00166 }
<a name="l00167"></a>00167 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (chunk == 0)
<a name="l00168"></a>00168 {
<a name="l00169"></a>00169 retval = <a class="code" href="group__DBusInternalsUtils.html#ggaa1d634db87605c2a83f2750ce6052653a7d65492f3f0d09176ac4504987457d23" title="EOF returned.">READ_STATUS_EOF</a>;
<a name="l00170"></a>00170 <span class="keywordflow">break</span>; <span class="comment">/* EOF */</span>
<a name="l00171"></a>00171 }
<a name="l00172"></a>00172 <span class="keywordflow">else</span> <span class="comment">/* chunk > 0 */</span>
<a name="l00173"></a>00173 bytes += chunk;
<a name="l00174"></a>00174 }
<a name="l00175"></a>00175
<a name="l00176"></a>00176 <span class="keywordflow">return</span> retval;
<a name="l00177"></a>00177 }
<a name="l00178"></a>00178
<a name="l00179"></a>00179 <span class="comment">/* The implementation uses an intermediate child between the main process</span>
<a name="l00180"></a>00180 <span class="comment"> * and the grandchild. The grandchild is our spawned process. The intermediate</span>
<a name="l00181"></a>00181 <span class="comment"> * child is a babysitter process; it keeps track of when the grandchild</span>
<a name="l00182"></a>00182 <span class="comment"> * exits/crashes, and reaps the grandchild.</span>
<a name="l00183"></a>00183 <span class="comment"> *</span>
<a name="l00184"></a>00184 <span class="comment"> * We automatically reap the babysitter process, killing it if necessary,</span>
<a name="l00185"></a>00185 <span class="comment"> * when the DBusBabysitter's refcount goes to zero.</span>
<a name="l00186"></a>00186 <span class="comment"> *</span>
<a name="l00187"></a>00187 <span class="comment"> * Processes:</span>
<a name="l00188"></a>00188 <span class="comment"> *</span>
<a name="l00189"></a>00189 <span class="comment"> * main process</span>
<a name="l00190"></a>00190 <span class="comment"> * | fork() A</span>
<a name="l00191"></a>00191 <span class="comment"> * \- babysitter</span>
<a name="l00192"></a>00192 <span class="comment"> * | fork () B</span>
<a name="l00193"></a>00193 <span class="comment"> * \- grandchild --> exec --> spawned process</span>
<a name="l00194"></a>00194 <span class="comment"> *</span>
<a name="l00195"></a>00195 <span class="comment"> * IPC:</span>
<a name="l00196"></a>00196 <span class="comment"> * child_err_report_pipe</span>
<a name="l00197"></a>00197 <span class="comment"> * /-----------<---------<--------------\</span>
<a name="l00198"></a>00198 <span class="comment"> * | ^</span>
<a name="l00199"></a>00199 <span class="comment"> * v |</span>
<a name="l00200"></a>00200 <span class="comment"> * main process babysitter grandchild</span>
<a name="l00201"></a>00201 <span class="comment"> * ^ ^</span>
<a name="l00202"></a>00202 <span class="comment"> * v v</span>
<a name="l00203"></a>00203 <span class="comment"> * \-------<->-------/</span>
<a name="l00204"></a>00204 <span class="comment"> * babysitter_pipe</span>
<a name="l00205"></a>00205 <span class="comment"> *</span>
<a name="l00206"></a>00206 <span class="comment"> * child_err_report_pipe is genuinely a pipe.</span>
<a name="l00207"></a>00207 <span class="comment"> * The READ_END (also called error_pipe_from_child) is used in the main</span>
<a name="l00208"></a>00208 <span class="comment"> * process. The WRITE_END (also called child_err_report_fd) is used in</span>
<a name="l00209"></a>00209 <span class="comment"> * the grandchild process.</span>
<a name="l00210"></a>00210 <span class="comment"> *</span>
<a name="l00211"></a>00211 <span class="comment"> * On failure, the grandchild process sends CHILD_EXEC_FAILED + errno.</span>
<a name="l00212"></a>00212 <span class="comment"> * On success, the pipe just closes (because it's close-on-exec) without</span>
<a name="l00213"></a>00213 <span class="comment"> * sending any bytes.</span>
<a name="l00214"></a>00214 <span class="comment"> *</span>
<a name="l00215"></a>00215 <span class="comment"> * babysitter_pipe is mis-named: it's really a bidirectional socketpair.</span>
<a name="l00216"></a>00216 <span class="comment"> * The [0] end (also called socket_to_babysitter) is used in the main</span>
<a name="l00217"></a>00217 <span class="comment"> * process, the [1] end (also called parent_pipe) is used in the babysitter.</span>
<a name="l00218"></a>00218 <span class="comment"> *</span>
<a name="l00219"></a>00219 <span class="comment"> * If the fork() labelled B in the diagram above fails, the babysitter sends</span>
<a name="l00220"></a>00220 <span class="comment"> * CHILD_FORK_FAILED + errno.</span>
<a name="l00221"></a>00221 <span class="comment"> * On success, the babysitter sends CHILD_PID + the grandchild's pid.</span>
<a name="l00222"></a>00222 <span class="comment"> * On SIGCHLD, the babysitter sends CHILD_EXITED + the exit status.</span>
<a name="l00223"></a>00223 <span class="comment"> * The main process doesn't explicitly send anything, but when it exits,</span>
<a name="l00224"></a>00224 <span class="comment"> * the babysitter gets POLLHUP or POLLERR.</span>
<a name="l00225"></a>00225 <span class="comment"> */</span>
<a name="l00226"></a>00226
<a name="l00227"></a>00227 <span class="comment">/* Messages from children to parents */</span>
<a name="l00228"></a>00228 <span class="keyword">enum</span>
<a name="l00229"></a>00229 {
<a name="l00230"></a>00230 CHILD_EXITED, <span class="comment">/* This message is followed by the exit status int */</span>
<a name="l00231"></a>00231 CHILD_FORK_FAILED, <span class="comment">/* Followed by errno */</span>
<a name="l00232"></a>00232 CHILD_EXEC_FAILED, <span class="comment">/* Followed by errno */</span>
<a name="l00233"></a>00233 CHILD_PID <span class="comment">/* Followed by pid_t */</span>
<a name="l00234"></a>00234 };
<a name="l00235"></a>00235
<a name="l00239"></a>00239 <span class="keyword">struct </span><a class="code" href="structDBusBabysitter.html" title="Babysitter implementation details.">DBusBabysitter</a>
<a name="l00240"></a>00240 {
<a name="l00241"></a>00241 <span class="keywordtype">int</span> <a class="code" href="structDBusBabysitter.html#abd6c2c867f005bea3932fc9f754dd14e" title="Reference count.">refcount</a>;
<a name="l00243"></a>00243 <span class="keywordtype">char</span> *<a class="code" href="structDBusBabysitter.html#aa5f57474dbc3603fd888430496769778" title="the name under which to log messages about this process being spawned">log_name</a>;
<a name="l00246"></a>00246 <span class="keywordtype">int</span> <a class="code" href="structDBusBabysitter.html#a9b5fa1cf7463e6e88308b85788e232a1" title="Connection to the babysitter process.">socket_to_babysitter</a>;
<a name="l00247"></a><a class="code" href="structDBusBabysitter.html#abc42ea27fa4ee1e4f04819364e0a9bde">00247</a> <span class="keywordtype">int</span> <a class="code" href="structDBusBabysitter.html#abc42ea27fa4ee1e4f04819364e0a9bde" title="Connection to the process that does the exec()">error_pipe_from_child</a>;
<a name="l00249"></a><a class="code" href="structDBusBabysitter.html#aa783f733db30b4587f08ee906612fa6c">00249</a> pid_t <a class="code" href="structDBusBabysitter.html#aa783f733db30b4587f08ee906612fa6c" title="PID Of the babysitter.">sitter_pid</a>;
<a name="l00250"></a><a class="code" href="structDBusBabysitter.html#af0f5b85d39a7d2957ae83b3c594b88af">00250</a> pid_t <a class="code" href="structDBusBabysitter.html#af0f5b85d39a7d2957ae83b3c594b88af" title="PID of the grandchild.">grandchild_pid</a>;
<a name="l00252"></a>00252 <a class="code" href="structDBusWatchList.html" title="DBusWatchList implementation details.">DBusWatchList</a> *<a class="code" href="structDBusBabysitter.html#ae0219a288aa52775dee075b80ab8c170" title="Watches.">watches</a>;
<a name="l00254"></a><a class="code" href="structDBusBabysitter.html#ae89fdf7339b921a19728a2c8abfad251">00254</a> <a class="code" href="structDBusWatch.html" title="Implementation of DBusWatch.">DBusWatch</a> *<a class="code" href="structDBusBabysitter.html#ae89fdf7339b921a19728a2c8abfad251" title="Error pipe watch.">error_watch</a>;
<a name="l00255"></a>00255 <a class="code" href="structDBusWatch.html" title="Implementation of DBusWatch.">DBusWatch</a> *<a class="code" href="structDBusBabysitter.html#a1f01b1d3775f4b3437a01117cf8ddfcb" title="Sitter pipe watch.">sitter_watch</a>;
<a name="l00257"></a>00257 DBusBabysitterFinishedFunc finished_cb;
<a name="l00258"></a>00258 <span class="keywordtype">void</span> *finished_data;
<a name="l00259"></a>00259
<a name="l00260"></a><a class="code" href="structDBusBabysitter.html#aaca14d66f484b0a3b06b395aa8485c70">00260</a> <span class="keywordtype">int</span> <a class="code" href="structDBusBabysitter.html#aaca14d66f484b0a3b06b395aa8485c70" title="Error number.">errnum</a>;
<a name="l00261"></a><a class="code" href="structDBusBabysitter.html#a6b3aa53fa01507b290bf575f5cc088e3">00261</a> <span class="keywordtype">int</span> <a class="code" href="structDBusBabysitter.html#a6b3aa53fa01507b290bf575f5cc088e3" title="Exit status code.">status</a>;
<a name="l00262"></a><a class="code" href="structDBusBabysitter.html#a8d6c87e5e04e3f6e2e11dc4547e238c7">00262</a> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> have_child_status : 1;
<a name="l00263"></a><a class="code" href="structDBusBabysitter.html#afc7d26bf84459ec406ddd615101018f9">00263</a> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="structDBusBabysitter.html#afc7d26bf84459ec406ddd615101018f9" title="True if we have an error code from fork()">have_fork_errnum</a> : 1;
<a name="l00264"></a><a class="code" href="structDBusBabysitter.html#a2275e6071accc74280cd354debb5f801">00264</a> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="structDBusBabysitter.html#a2275e6071accc74280cd354debb5f801" title="True if we have an error code from exec()">have_exec_errnum</a> : 1;
<a name="l00265"></a>00265 };
<a name="l00266"></a>00266
<a name="l00267"></a>00267 <span class="keyword">static</span> <a class="code" href="structDBusBabysitter.html" title="Babysitter implementation details.">DBusBabysitter</a>*
<a name="l00268"></a>00268 _dbus_babysitter_new (<span class="keywordtype">void</span>)
<a name="l00269"></a>00269 {
<a name="l00270"></a>00270 <a class="code" href="structDBusBabysitter.html" title="Babysitter implementation details.">DBusBabysitter</a> *sitter;
<a name="l00271"></a>00271
<a name="l00272"></a>00272 sitter = <a class="code" href="group__DBusMemory.html#gaba9d823abda7f4cadbaf5177d3b8b793" title="Safe macro for using dbus_malloc0().">dbus_new0</a> (<a class="code" href="structDBusBabysitter.html" title="Babysitter implementation details.">DBusBabysitter</a>, 1);
<a name="l00273"></a>00273 <span class="keywordflow">if</span> (sitter == <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>)
<a name="l00274"></a>00274 <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="l00275"></a>00275
<a name="l00276"></a>00276 sitter-><a class="code" href="structDBusBabysitter.html#abd6c2c867f005bea3932fc9f754dd14e" title="Reference count.">refcount</a> = 1;
<a name="l00277"></a>00277
<a name="l00278"></a>00278 sitter-><a class="code" href="structDBusBabysitter.html#a9b5fa1cf7463e6e88308b85788e232a1" title="Connection to the babysitter process.">socket_to_babysitter</a> = -1;
<a name="l00279"></a>00279 sitter-><a class="code" href="structDBusBabysitter.html#abc42ea27fa4ee1e4f04819364e0a9bde" title="Connection to the process that does the exec()">error_pipe_from_child</a> = -1;
<a name="l00280"></a>00280
<a name="l00281"></a>00281 sitter-><a class="code" href="structDBusBabysitter.html#aa783f733db30b4587f08ee906612fa6c" title="PID Of the babysitter.">sitter_pid</a> = -1;
<a name="l00282"></a>00282 sitter-><a class="code" href="structDBusBabysitter.html#af0f5b85d39a7d2957ae83b3c594b88af" title="PID of the grandchild.">grandchild_pid</a> = -1;
<a name="l00283"></a>00283
<a name="l00284"></a>00284 sitter-><a class="code" href="structDBusBabysitter.html#ae0219a288aa52775dee075b80ab8c170" title="Watches.">watches</a> = <a class="code" href="group__DBusWatchInternals.html#ga5d9db5d0af5916a5ec890eb38d5741eb" title="Creates a new watch list.">_dbus_watch_list_new</a> ();
<a name="l00285"></a>00285 <span class="keywordflow">if</span> (sitter-><a class="code" href="structDBusBabysitter.html#ae0219a288aa52775dee075b80ab8c170" title="Watches.">watches</a> == <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>)
<a name="l00286"></a>00286 <span class="keywordflow">goto</span> failed;
<a name="l00287"></a>00287
<a name="l00288"></a>00288 <span class="keywordflow">return</span> sitter;
<a name="l00289"></a>00289
<a name="l00290"></a>00290 failed:
<a name="l00291"></a>00291 <a class="code" href="group__DBusInternalsUtils.html#ga3205e9f8672271794aeb9d451e2fcc4a" title="Decrement the reference count on the babysitter object.">_dbus_babysitter_unref</a> (sitter);
<a name="l00292"></a>00292 <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="l00293"></a>00293 }
<a name="l00294"></a>00294
<a name="l00301"></a>00301 <a class="code" href="structDBusBabysitter.html" title="Babysitter implementation details.">DBusBabysitter</a> *
<a name="l00302"></a><a class="code" href="group__DBusInternalsUtils.html#ga525b5fdb780ddf6891918466965e6eb6">00302</a> <a class="code" href="group__DBusInternalsUtils.html#ga525b5fdb780ddf6891918466965e6eb6" title="Increment the reference count on the babysitter object.">_dbus_babysitter_ref</a> (<a class="code" href="structDBusBabysitter.html" title="Babysitter implementation details.">DBusBabysitter</a> *sitter)
<a name="l00303"></a>00303 {
<a name="l00304"></a>00304 _dbus_assert (sitter != <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>);
<a name="l00305"></a>00305 _dbus_assert (sitter-><a class="code" href="structDBusBabysitter.html#abd6c2c867f005bea3932fc9f754dd14e" title="Reference count.">refcount</a> > 0);
<a name="l00306"></a>00306
<a name="l00307"></a>00307 sitter-><a class="code" href="structDBusBabysitter.html#abd6c2c867f005bea3932fc9f754dd14e" title="Reference count.">refcount</a> += 1;
<a name="l00308"></a>00308
<a name="l00309"></a>00309 <span class="keywordflow">return</span> sitter;
<a name="l00310"></a>00310 }
<a name="l00311"></a>00311
<a name="l00312"></a>00312 <span class="keyword">static</span> <span class="keywordtype">void</span> close_socket_to_babysitter (<a class="code" href="structDBusBabysitter.html" title="Babysitter implementation details.">DBusBabysitter</a> *sitter);
<a name="l00313"></a>00313 <span class="keyword">static</span> <span class="keywordtype">void</span> close_error_pipe_from_child (<a class="code" href="structDBusBabysitter.html" title="Babysitter implementation details.">DBusBabysitter</a> *sitter);
<a name="l00314"></a>00314
<a name="l00323"></a>00323 <span class="keywordtype">void</span>
<a name="l00324"></a><a class="code" href="group__DBusInternalsUtils.html#ga3205e9f8672271794aeb9d451e2fcc4a">00324</a> <a class="code" href="group__DBusInternalsUtils.html#ga3205e9f8672271794aeb9d451e2fcc4a" title="Decrement the reference count on the babysitter object.">_dbus_babysitter_unref</a> (<a class="code" href="structDBusBabysitter.html" title="Babysitter implementation details.">DBusBabysitter</a> *sitter)
<a name="l00325"></a>00325 {
<a name="l00326"></a>00326 _dbus_assert (sitter != <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>);
<a name="l00327"></a>00327 _dbus_assert (sitter-><a class="code" href="structDBusBabysitter.html#abd6c2c867f005bea3932fc9f754dd14e" title="Reference count.">refcount</a> > 0);
<a name="l00328"></a>00328
<a name="l00329"></a>00329 sitter-><a class="code" href="structDBusBabysitter.html#abd6c2c867f005bea3932fc9f754dd14e" title="Reference count.">refcount</a> -= 1;
<a name="l00330"></a>00330 <span class="keywordflow">if</span> (sitter-><a class="code" href="structDBusBabysitter.html#abd6c2c867f005bea3932fc9f754dd14e" title="Reference count.">refcount</a> == 0)
<a name="l00331"></a>00331 {
<a name="l00332"></a>00332 <span class="comment">/* If we haven't forked other babysitters</span>
<a name="l00333"></a>00333 <span class="comment"> * since this babysitter and socket were</span>
<a name="l00334"></a>00334 <span class="comment"> * created then this close will cause the</span>
<a name="l00335"></a>00335 <span class="comment"> * babysitter to wake up from poll with</span>
<a name="l00336"></a>00336 <span class="comment"> * a hangup and then the babysitter will</span>
<a name="l00337"></a>00337 <span class="comment"> * quit itself.</span>
<a name="l00338"></a>00338 <span class="comment"> */</span>
<a name="l00339"></a>00339 close_socket_to_babysitter (sitter);
<a name="l00340"></a>00340
<a name="l00341"></a>00341 close_error_pipe_from_child (sitter);
<a name="l00342"></a>00342
<a name="l00343"></a>00343 <span class="keywordflow">if</span> (sitter-><a class="code" href="structDBusBabysitter.html#aa783f733db30b4587f08ee906612fa6c" title="PID Of the babysitter.">sitter_pid</a> > 0)
<a name="l00344"></a>00344 {
<a name="l00345"></a>00345 <span class="keywordtype">int</span> status;
<a name="l00346"></a>00346 <span class="keywordtype">int</span> ret;
<a name="l00347"></a>00347
<a name="l00348"></a>00348 <span class="comment">/* It's possible the babysitter died on its own above </span>
<a name="l00349"></a>00349 <span class="comment"> * from the close, or was killed randomly</span>
<a name="l00350"></a>00350 <span class="comment"> * by some other process, so first try to reap it</span>
<a name="l00351"></a>00351 <span class="comment"> */</span>
<a name="l00352"></a>00352 ret = waitpid (sitter-><a class="code" href="structDBusBabysitter.html#aa783f733db30b4587f08ee906612fa6c" title="PID Of the babysitter.">sitter_pid</a>, &status, WNOHANG);
<a name="l00353"></a>00353
<a name="l00354"></a>00354 <span class="comment">/* If we couldn't reap the child then kill it, and</span>
<a name="l00355"></a>00355 <span class="comment"> * try again</span>
<a name="l00356"></a>00356 <span class="comment"> */</span>
<a name="l00357"></a>00357 <span class="keywordflow">if</span> (ret == 0)
<a name="l00358"></a>00358 kill (sitter-><a class="code" href="structDBusBabysitter.html#aa783f733db30b4587f08ee906612fa6c" title="PID Of the babysitter.">sitter_pid</a>, SIGKILL);
<a name="l00359"></a>00359
<a name="l00360"></a>00360 <span class="keywordflow">if</span> (ret == 0)
<a name="l00361"></a>00361 {
<a name="l00362"></a>00362 <span class="keywordflow">do</span>
<a name="l00363"></a>00363 {
<a name="l00364"></a>00364 ret = waitpid (sitter-><a class="code" href="structDBusBabysitter.html#aa783f733db30b4587f08ee906612fa6c" title="PID Of the babysitter.">sitter_pid</a>, &status, 0);
<a name="l00365"></a>00365 }
<a name="l00366"></a>00366 <span class="keywordflow">while</span> (_DBUS_UNLIKELY (ret < 0 && errno == EINTR));
<a name="l00367"></a>00367 }
<a name="l00368"></a>00368
<a name="l00369"></a>00369 <span class="keywordflow">if</span> (ret < 0)
<a name="l00370"></a>00370 {
<a name="l00371"></a>00371 <span class="keywordflow">if</span> (errno == ECHILD)
<a name="l00372"></a>00372 <a class="code" href="group__DBusInternalsUtils.html#gabea2c16d6d3fe7c4eb5b9496fc877f84" title="Prints a warning message to stderr.">_dbus_warn</a> (<span class="stringliteral">"Babysitter process not available to be reaped; should not happen\n"</span>);
<a name="l00373"></a>00373 <span class="keywordflow">else</span>
<a name="l00374"></a>00374 <a class="code" href="group__DBusInternalsUtils.html#gabea2c16d6d3fe7c4eb5b9496fc877f84" title="Prints a warning message to stderr.">_dbus_warn</a> (<span class="stringliteral">"Unexpected error %d in waitpid() for babysitter: %s\n"</span>,
<a name="l00375"></a>00375 errno, _dbus_strerror (errno));
<a name="l00376"></a>00376 }
<a name="l00377"></a>00377 <span class="keywordflow">else</span>
<a name="l00378"></a>00378 {
<a name="l00379"></a>00379 _dbus_verbose (<span class="stringliteral">"Reaped %ld, waiting for babysitter %ld\n"</span>,
<a name="l00380"></a>00380 (<span class="keywordtype">long</span>) ret, (<span class="keywordtype">long</span>) sitter-><a class="code" href="structDBusBabysitter.html#aa783f733db30b4587f08ee906612fa6c" title="PID Of the babysitter.">sitter_pid</a>);
<a name="l00381"></a>00381
<a name="l00382"></a>00382 <span class="keywordflow">if</span> (WIFEXITED (sitter-><a class="code" href="structDBusBabysitter.html#a6b3aa53fa01507b290bf575f5cc088e3" title="Exit status code.">status</a>))
<a name="l00383"></a>00383 _dbus_verbose (<span class="stringliteral">"Babysitter exited with status %d\n"</span>,
<a name="l00384"></a>00384 WEXITSTATUS (sitter-><a class="code" href="structDBusBabysitter.html#a6b3aa53fa01507b290bf575f5cc088e3" title="Exit status code.">status</a>));
<a name="l00385"></a>00385 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (WIFSIGNALED (sitter-><a class="code" href="structDBusBabysitter.html#a6b3aa53fa01507b290bf575f5cc088e3" title="Exit status code.">status</a>))
<a name="l00386"></a>00386 _dbus_verbose (<span class="stringliteral">"Babysitter received signal %d\n"</span>,
<a name="l00387"></a>00387 WTERMSIG (sitter-><a class="code" href="structDBusBabysitter.html#a6b3aa53fa01507b290bf575f5cc088e3" title="Exit status code.">status</a>));
<a name="l00388"></a>00388 <span class="keywordflow">else</span>
<a name="l00389"></a>00389 _dbus_verbose (<span class="stringliteral">"Babysitter exited abnormally\n"</span>);
<a name="l00390"></a>00390 }
<a name="l00391"></a>00391
<a name="l00392"></a>00392 sitter-><a class="code" href="structDBusBabysitter.html#aa783f733db30b4587f08ee906612fa6c" title="PID Of the babysitter.">sitter_pid</a> = -1;
<a name="l00393"></a>00393 }
<a name="l00394"></a>00394
<a name="l00395"></a>00395 <span class="keywordflow">if</span> (sitter-><a class="code" href="structDBusBabysitter.html#ae0219a288aa52775dee075b80ab8c170" title="Watches.">watches</a>)
<a name="l00396"></a>00396 <a class="code" href="group__DBusWatchInternals.html#gac3f75c0da2c8c51e8708f45dd27f9e2d" title="Frees a DBusWatchList.">_dbus_watch_list_free</a> (sitter-><a class="code" href="structDBusBabysitter.html#ae0219a288aa52775dee075b80ab8c170" title="Watches.">watches</a>);
<a name="l00397"></a>00397
<a name="l00398"></a>00398 <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> (sitter-><a class="code" href="structDBusBabysitter.html#aa5f57474dbc3603fd888430496769778" title="the name under which to log messages about this process being spawned">log_name</a>);
<a name="l00399"></a>00399
<a name="l00400"></a>00400 <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> (sitter);
<a name="l00401"></a>00401 }
<a name="l00402"></a>00402 }
<a name="l00403"></a>00403
<a name="l00404"></a>00404 <span class="keyword">static</span> <a class="code" href="group__DBusInternalsUtils.html#gaa1d634db87605c2a83f2750ce6052653" title="Enumeration for status of a read()">ReadStatus</a>
<a name="l00405"></a>00405 read_data (<a class="code" href="structDBusBabysitter.html" title="Babysitter implementation details.">DBusBabysitter</a> *sitter,
<a name="l00406"></a>00406 <span class="keywordtype">int</span> fd)
<a name="l00407"></a>00407 {
<a name="l00408"></a>00408 <span class="keywordtype">int</span> what;
<a name="l00409"></a>00409 <span class="keywordtype">int</span> got;
<a name="l00410"></a>00410 <a class="code" href="structDBusError.html" title="Object representing an exception.">DBusError</a> error = <a class="code" href="group__DBusErrorInternals.html#ga961cc70e3891282a65205c4c8418d88e" title="Expands to a suitable initializer for a DBusError on the stack.">DBUS_ERROR_INIT</a>;
<a name="l00411"></a>00411 <a class="code" href="group__DBusInternalsUtils.html#gaa1d634db87605c2a83f2750ce6052653" title="Enumeration for status of a read()">ReadStatus</a> r;
<a name="l00412"></a>00412
<a name="l00413"></a>00413 r = read_ints (fd, &what, 1, &got, &error);
<a name="l00414"></a>00414
<a name="l00415"></a>00415 <span class="keywordflow">switch</span> (r)
<a name="l00416"></a>00416 {
<a name="l00417"></a>00417 <span class="keywordflow">case</span> <a class="code" href="group__DBusInternalsUtils.html#ggaa1d634db87605c2a83f2750ce6052653ad13164fb31fb0b5bc1ec802d09d10411" title="Some kind of error.">READ_STATUS_ERROR</a>:
<a name="l00418"></a>00418 <a class="code" href="group__DBusInternalsUtils.html#gabea2c16d6d3fe7c4eb5b9496fc877f84" title="Prints a warning message to stderr.">_dbus_warn</a> (<span class="stringliteral">"Failed to read data from fd %d: %s\n"</span>, fd, error.<a class="code" href="structDBusError.html#afb559175326de5b6b340e26204e92d72" title="public error message field">message</a>);
<a name="l00419"></a>00419 <a class="code" href="group__DBusErrors.html#gaac6c14ead14829ee4e090f39de6a7568" title="Frees an error that's been set (or just initialized), then reinitializes the error as in dbus_error_i...">dbus_error_free</a> (&error);
<a name="l00420"></a>00420 <span class="keywordflow">return</span> r;
<a name="l00421"></a>00421
<a name="l00422"></a>00422 <span class="keywordflow">case</span> <a class="code" href="group__DBusInternalsUtils.html#ggaa1d634db87605c2a83f2750ce6052653a7d65492f3f0d09176ac4504987457d23" title="EOF returned.">READ_STATUS_EOF</a>:
<a name="l00423"></a>00423 <span class="keywordflow">return</span> r;
<a name="l00424"></a>00424
<a name="l00425"></a>00425 <span class="keywordflow">case</span> <a class="code" href="group__DBusInternalsUtils.html#ggaa1d634db87605c2a83f2750ce6052653a105d3aa9ec19f4c060b39c7fafba39ff" title="Read succeeded.">READ_STATUS_OK</a>:
<a name="l00426"></a>00426 <span class="keywordflow">break</span>;
<a name="l00427"></a>00427 }
<a name="l00428"></a>00428
<a name="l00429"></a>00429 <span class="keywordflow">if</span> (got == 1)
<a name="l00430"></a>00430 {
<a name="l00431"></a>00431 <span class="keywordflow">switch</span> (what)
<a name="l00432"></a>00432 {
<a name="l00433"></a>00433 <span class="keywordflow">case</span> CHILD_EXITED:
<a name="l00434"></a>00434 <span class="keywordflow">case</span> CHILD_FORK_FAILED:
<a name="l00435"></a>00435 <span class="keywordflow">case</span> CHILD_EXEC_FAILED:
<a name="l00436"></a>00436 {
<a name="l00437"></a>00437 <span class="keywordtype">int</span> arg;
<a name="l00438"></a>00438
<a name="l00439"></a>00439 r = read_ints (fd, &arg, 1, &got, &error);
<a name="l00440"></a>00440
<a name="l00441"></a>00441 <span class="keywordflow">switch</span> (r)
<a name="l00442"></a>00442 {
<a name="l00443"></a>00443 <span class="keywordflow">case</span> <a class="code" href="group__DBusInternalsUtils.html#ggaa1d634db87605c2a83f2750ce6052653ad13164fb31fb0b5bc1ec802d09d10411" title="Some kind of error.">READ_STATUS_ERROR</a>:
<a name="l00444"></a>00444 <a class="code" href="group__DBusInternalsUtils.html#gabea2c16d6d3fe7c4eb5b9496fc877f84" title="Prints a warning message to stderr.">_dbus_warn</a> (<span class="stringliteral">"Failed to read arg from fd %d: %s\n"</span>, fd, error.<a class="code" href="structDBusError.html#afb559175326de5b6b340e26204e92d72" title="public error message field">message</a>);
<a name="l00445"></a>00445 <a class="code" href="group__DBusErrors.html#gaac6c14ead14829ee4e090f39de6a7568" title="Frees an error that's been set (or just initialized), then reinitializes the error as in dbus_error_i...">dbus_error_free</a> (&error);
<a name="l00446"></a>00446 <span class="keywordflow">return</span> r;
<a name="l00447"></a>00447 <span class="keywordflow">case</span> <a class="code" href="group__DBusInternalsUtils.html#ggaa1d634db87605c2a83f2750ce6052653a7d65492f3f0d09176ac4504987457d23" title="EOF returned.">READ_STATUS_EOF</a>:
<a name="l00448"></a>00448 <span class="keywordflow">return</span> r;
<a name="l00449"></a>00449 <span class="keywordflow">case</span> <a class="code" href="group__DBusInternalsUtils.html#ggaa1d634db87605c2a83f2750ce6052653a105d3aa9ec19f4c060b39c7fafba39ff" title="Read succeeded.">READ_STATUS_OK</a>:
<a name="l00450"></a>00450 <span class="keywordflow">break</span>;
<a name="l00451"></a>00451 }
<a name="l00452"></a>00452
<a name="l00453"></a>00453 <span class="keywordflow">if</span> (got == 1)
<a name="l00454"></a>00454 {
<a name="l00455"></a>00455 <span class="keywordflow">if</span> (what == CHILD_EXITED)
<a name="l00456"></a>00456 {
<a name="l00457"></a>00457 sitter->have_child_status = <a class="code" href="group__DBusMacros.html#gaa8cecfc5c5c054d2875c03e77b7be15d" title="Expands to "1".">TRUE</a>;
<a name="l00458"></a>00458 sitter-><a class="code" href="structDBusBabysitter.html#a6b3aa53fa01507b290bf575f5cc088e3" title="Exit status code.">status</a> = arg;
<a name="l00459"></a>00459 sitter-><a class="code" href="structDBusBabysitter.html#aaca14d66f484b0a3b06b395aa8485c70" title="Error number.">errnum</a> = 0;
<a name="l00460"></a>00460 _dbus_verbose (<span class="stringliteral">"recorded child status exited = %d signaled = %d exitstatus = %d termsig = %d\n"</span>,
<a name="l00461"></a>00461 WIFEXITED (sitter-><a class="code" href="structDBusBabysitter.html#a6b3aa53fa01507b290bf575f5cc088e3" title="Exit status code.">status</a>), WIFSIGNALED (sitter-><a class="code" href="structDBusBabysitter.html#a6b3aa53fa01507b290bf575f5cc088e3" title="Exit status code.">status</a>),
<a name="l00462"></a>00462 WEXITSTATUS (sitter-><a class="code" href="structDBusBabysitter.html#a6b3aa53fa01507b290bf575f5cc088e3" title="Exit status code.">status</a>), WTERMSIG (sitter-><a class="code" href="structDBusBabysitter.html#a6b3aa53fa01507b290bf575f5cc088e3" title="Exit status code.">status</a>));
<a name="l00463"></a>00463 }
<a name="l00464"></a>00464 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (what == CHILD_FORK_FAILED)
<a name="l00465"></a>00465 {
<a name="l00466"></a>00466 sitter-><a class="code" href="structDBusBabysitter.html#afc7d26bf84459ec406ddd615101018f9" title="True if we have an error code from fork()">have_fork_errnum</a> = <a class="code" href="group__DBusMacros.html#gaa8cecfc5c5c054d2875c03e77b7be15d" title="Expands to "1".">TRUE</a>;
<a name="l00467"></a>00467 sitter-><a class="code" href="structDBusBabysitter.html#aaca14d66f484b0a3b06b395aa8485c70" title="Error number.">errnum</a> = arg;
<a name="l00468"></a>00468 _dbus_verbose (<span class="stringliteral">"recorded fork errnum %d\n"</span>, sitter-><a class="code" href="structDBusBabysitter.html#aaca14d66f484b0a3b06b395aa8485c70" title="Error number.">errnum</a>);
<a name="l00469"></a>00469 }
<a name="l00470"></a>00470 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (what == CHILD_EXEC_FAILED)
<a name="l00471"></a>00471 {
<a name="l00472"></a>00472 sitter-><a class="code" href="structDBusBabysitter.html#a2275e6071accc74280cd354debb5f801" title="True if we have an error code from exec()">have_exec_errnum</a> = <a class="code" href="group__DBusMacros.html#gaa8cecfc5c5c054d2875c03e77b7be15d" title="Expands to "1".">TRUE</a>;
<a name="l00473"></a>00473 sitter-><a class="code" href="structDBusBabysitter.html#aaca14d66f484b0a3b06b395aa8485c70" title="Error number.">errnum</a> = arg;
<a name="l00474"></a>00474 _dbus_verbose (<span class="stringliteral">"recorded exec errnum %d\n"</span>, sitter-><a class="code" href="structDBusBabysitter.html#aaca14d66f484b0a3b06b395aa8485c70" title="Error number.">errnum</a>);
<a name="l00475"></a>00475 }
<a name="l00476"></a>00476 }
<a name="l00477"></a>00477 }
<a name="l00478"></a>00478 <span class="keywordflow">break</span>;
<a name="l00479"></a>00479 <span class="keywordflow">case</span> CHILD_PID:
<a name="l00480"></a>00480 {
<a name="l00481"></a>00481 pid_t pid = -1;
<a name="l00482"></a>00482
<a name="l00483"></a>00483 r = read_pid (fd, &pid, &error);
<a name="l00484"></a>00484
<a name="l00485"></a>00485 <span class="keywordflow">switch</span> (r)
<a name="l00486"></a>00486 {
<a name="l00487"></a>00487 <span class="keywordflow">case</span> <a class="code" href="group__DBusInternalsUtils.html#ggaa1d634db87605c2a83f2750ce6052653ad13164fb31fb0b5bc1ec802d09d10411" title="Some kind of error.">READ_STATUS_ERROR</a>:
<a name="l00488"></a>00488 <a class="code" href="group__DBusInternalsUtils.html#gabea2c16d6d3fe7c4eb5b9496fc877f84" title="Prints a warning message to stderr.">_dbus_warn</a> (<span class="stringliteral">"Failed to read PID from fd %d: %s\n"</span>, fd, error.<a class="code" href="structDBusError.html#afb559175326de5b6b340e26204e92d72" title="public error message field">message</a>);
<a name="l00489"></a>00489 <a class="code" href="group__DBusErrors.html#gaac6c14ead14829ee4e090f39de6a7568" title="Frees an error that's been set (or just initialized), then reinitializes the error as in dbus_error_i...">dbus_error_free</a> (&error);
<a name="l00490"></a>00490 <span class="keywordflow">return</span> r;
<a name="l00491"></a>00491 <span class="keywordflow">case</span> <a class="code" href="group__DBusInternalsUtils.html#ggaa1d634db87605c2a83f2750ce6052653a7d65492f3f0d09176ac4504987457d23" title="EOF returned.">READ_STATUS_EOF</a>:
<a name="l00492"></a>00492 <span class="keywordflow">return</span> r;
<a name="l00493"></a>00493 <span class="keywordflow">case</span> <a class="code" href="group__DBusInternalsUtils.html#ggaa1d634db87605c2a83f2750ce6052653a105d3aa9ec19f4c060b39c7fafba39ff" title="Read succeeded.">READ_STATUS_OK</a>:
<a name="l00494"></a>00494 <span class="keywordflow">break</span>;
<a name="l00495"></a>00495 }
<a name="l00496"></a>00496
<a name="l00497"></a>00497 sitter-><a class="code" href="structDBusBabysitter.html#af0f5b85d39a7d2957ae83b3c594b88af" title="PID of the grandchild.">grandchild_pid</a> = pid;
<a name="l00498"></a>00498
<a name="l00499"></a>00499 _dbus_verbose (<span class="stringliteral">"recorded grandchild pid %d\n"</span>, sitter-><a class="code" href="structDBusBabysitter.html#af0f5b85d39a7d2957ae83b3c594b88af" title="PID of the grandchild.">grandchild_pid</a>);
<a name="l00500"></a>00500 }
<a name="l00501"></a>00501 <span class="keywordflow">break</span>;
<a name="l00502"></a>00502 <span class="keywordflow">default</span>:
<a name="l00503"></a>00503 <a class="code" href="group__DBusInternalsUtils.html#gabea2c16d6d3fe7c4eb5b9496fc877f84" title="Prints a warning message to stderr.">_dbus_warn</a> (<span class="stringliteral">"Unknown message received from babysitter process\n"</span>);
<a name="l00504"></a>00504 <span class="keywordflow">break</span>;
<a name="l00505"></a>00505 }
<a name="l00506"></a>00506 }
<a name="l00507"></a>00507
<a name="l00508"></a>00508 <span class="keywordflow">return</span> r;
<a name="l00509"></a>00509 }
<a name="l00510"></a>00510
<a name="l00511"></a>00511 <span class="keyword">static</span> <span class="keywordtype">void</span>
<a name="l00512"></a>00512 close_socket_to_babysitter (<a class="code" href="structDBusBabysitter.html" title="Babysitter implementation details.">DBusBabysitter</a> *sitter)
<a name="l00513"></a>00513 {
<a name="l00514"></a>00514 _dbus_verbose (<span class="stringliteral">"Closing babysitter\n"</span>);
<a name="l00515"></a>00515
<a name="l00516"></a>00516 <span class="keywordflow">if</span> (sitter-><a class="code" href="structDBusBabysitter.html#a1f01b1d3775f4b3437a01117cf8ddfcb" title="Sitter pipe watch.">sitter_watch</a> != <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>)
<a name="l00517"></a>00517 {
<a name="l00518"></a>00518 _dbus_assert (sitter-><a class="code" href="structDBusBabysitter.html#ae0219a288aa52775dee075b80ab8c170" title="Watches.">watches</a> != <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>);
<a name="l00519"></a>00519 <a class="code" href="group__DBusWatchInternals.html#ga76894d297bc7d7d23cbacdc2b1778884" title="Removes a watch from the watch list, invoking the application's DBusRemoveWatchFunction if appropriat...">_dbus_watch_list_remove_watch</a> (sitter-><a class="code" href="structDBusBabysitter.html#ae0219a288aa52775dee075b80ab8c170" title="Watches.">watches</a>, sitter-><a class="code" href="structDBusBabysitter.html#a1f01b1d3775f4b3437a01117cf8ddfcb" title="Sitter pipe watch.">sitter_watch</a>);
<a name="l00520"></a>00520 <a class="code" href="group__DBusWatchInternals.html#gad8521d64123c1d1ae9a094bac8addd31" title="Clears the file descriptor from a now-invalid watch object so that no one tries to use it...">_dbus_watch_invalidate</a> (sitter-><a class="code" href="structDBusBabysitter.html#a1f01b1d3775f4b3437a01117cf8ddfcb" title="Sitter pipe watch.">sitter_watch</a>);
<a name="l00521"></a>00521 <a class="code" href="group__DBusWatchInternals.html#ga7d27dfc13a3ccfbaa99ceab331bb46f0" title="Decrements the reference count of a DBusWatch object and finalizes the object if the count reaches ze...">_dbus_watch_unref</a> (sitter-><a class="code" href="structDBusBabysitter.html#a1f01b1d3775f4b3437a01117cf8ddfcb" title="Sitter pipe watch.">sitter_watch</a>);
<a name="l00522"></a>00522 sitter-><a class="code" href="structDBusBabysitter.html#a1f01b1d3775f4b3437a01117cf8ddfcb" title="Sitter pipe watch.">sitter_watch</a> = <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>;
<a name="l00523"></a>00523 }
<a name="l00524"></a>00524
<a name="l00525"></a>00525 <span class="keywordflow">if</span> (sitter-><a class="code" href="structDBusBabysitter.html#a9b5fa1cf7463e6e88308b85788e232a1" title="Connection to the babysitter process.">socket_to_babysitter</a> >= 0)
<a name="l00526"></a>00526 {
<a name="l00527"></a>00527 <a class="code" href="group__DBusSysdeps.html#ga701f9b3087c196404f66ff95b4ace0b8" title="Closes a socket.">_dbus_close_socket</a> (sitter-><a class="code" href="structDBusBabysitter.html#a9b5fa1cf7463e6e88308b85788e232a1" title="Connection to the babysitter process.">socket_to_babysitter</a>, <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>);
<a name="l00528"></a>00528 sitter-><a class="code" href="structDBusBabysitter.html#a9b5fa1cf7463e6e88308b85788e232a1" title="Connection to the babysitter process.">socket_to_babysitter</a> = -1;
<a name="l00529"></a>00529 }
<a name="l00530"></a>00530 }
<a name="l00531"></a>00531
<a name="l00532"></a>00532 <span class="keyword">static</span> <span class="keywordtype">void</span>
<a name="l00533"></a>00533 close_error_pipe_from_child (<a class="code" href="structDBusBabysitter.html" title="Babysitter implementation details.">DBusBabysitter</a> *sitter)
<a name="l00534"></a>00534 {
<a name="l00535"></a>00535 _dbus_verbose (<span class="stringliteral">"Closing child error\n"</span>);
<a name="l00536"></a>00536
<a name="l00537"></a>00537 <span class="keywordflow">if</span> (sitter-><a class="code" href="structDBusBabysitter.html#ae89fdf7339b921a19728a2c8abfad251" title="Error pipe watch.">error_watch</a> != <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>)
<a name="l00538"></a>00538 {
<a name="l00539"></a>00539 _dbus_assert (sitter-><a class="code" href="structDBusBabysitter.html#ae0219a288aa52775dee075b80ab8c170" title="Watches.">watches</a> != <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>);
<a name="l00540"></a>00540 <a class="code" href="group__DBusWatchInternals.html#ga76894d297bc7d7d23cbacdc2b1778884" title="Removes a watch from the watch list, invoking the application's DBusRemoveWatchFunction if appropriat...">_dbus_watch_list_remove_watch</a> (sitter-><a class="code" href="structDBusBabysitter.html#ae0219a288aa52775dee075b80ab8c170" title="Watches.">watches</a>, sitter-><a class="code" href="structDBusBabysitter.html#ae89fdf7339b921a19728a2c8abfad251" title="Error pipe watch.">error_watch</a>);
<a name="l00541"></a>00541 <a class="code" href="group__DBusWatchInternals.html#gad8521d64123c1d1ae9a094bac8addd31" title="Clears the file descriptor from a now-invalid watch object so that no one tries to use it...">_dbus_watch_invalidate</a> (sitter-><a class="code" href="structDBusBabysitter.html#ae89fdf7339b921a19728a2c8abfad251" title="Error pipe watch.">error_watch</a>);
<a name="l00542"></a>00542 <a class="code" href="group__DBusWatchInternals.html#ga7d27dfc13a3ccfbaa99ceab331bb46f0" title="Decrements the reference count of a DBusWatch object and finalizes the object if the count reaches ze...">_dbus_watch_unref</a> (sitter-><a class="code" href="structDBusBabysitter.html#ae89fdf7339b921a19728a2c8abfad251" title="Error pipe watch.">error_watch</a>);
<a name="l00543"></a>00543 sitter-><a class="code" href="structDBusBabysitter.html#ae89fdf7339b921a19728a2c8abfad251" title="Error pipe watch.">error_watch</a> = <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>;
<a name="l00544"></a>00544 }
<a name="l00545"></a>00545
<a name="l00546"></a>00546 <span class="keywordflow">if</span> (sitter-><a class="code" href="structDBusBabysitter.html#abc42ea27fa4ee1e4f04819364e0a9bde" title="Connection to the process that does the exec()">error_pipe_from_child</a> >= 0)
<a name="l00547"></a>00547 {
<a name="l00548"></a>00548 <a class="code" href="group__DBusSysdeps.html#ga701f9b3087c196404f66ff95b4ace0b8" title="Closes a socket.">_dbus_close_socket</a> (sitter-><a class="code" href="structDBusBabysitter.html#abc42ea27fa4ee1e4f04819364e0a9bde" title="Connection to the process that does the exec()">error_pipe_from_child</a>, <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>);
<a name="l00549"></a>00549 sitter-><a class="code" href="structDBusBabysitter.html#abc42ea27fa4ee1e4f04819364e0a9bde" title="Connection to the process that does the exec()">error_pipe_from_child</a> = -1;
<a name="l00550"></a>00550 }
<a name="l00551"></a>00551 }
<a name="l00552"></a>00552
<a name="l00553"></a>00553 <span class="keyword">static</span> <span class="keywordtype">void</span>
<a name="l00554"></a>00554 handle_babysitter_socket (<a class="code" href="structDBusBabysitter.html" title="Babysitter implementation details.">DBusBabysitter</a> *sitter,
<a name="l00555"></a>00555 <span class="keywordtype">int</span> revents)
<a name="l00556"></a>00556 {
<a name="l00557"></a>00557 <span class="comment">/* Even if we have POLLHUP, we want to keep reading</span>
<a name="l00558"></a>00558 <span class="comment"> * data until POLLIN goes away; so this function only</span>
<a name="l00559"></a>00559 <span class="comment"> * looks at HUP/ERR if no IN is set.</span>
<a name="l00560"></a>00560 <span class="comment"> */</span>
<a name="l00561"></a>00561 <span class="keywordflow">if</span> (revents & <a class="code" href="group__DBusSysdeps.html#ga96b5ba58b9939d789bfece0d9bb82f41" title="There is data to read.">_DBUS_POLLIN</a>)
<a name="l00562"></a>00562 {
<a name="l00563"></a>00563 _dbus_verbose (<span class="stringliteral">"Reading data from babysitter\n"</span>);
<a name="l00564"></a>00564 <span class="keywordflow">if</span> (read_data (sitter, sitter-><a class="code" href="structDBusBabysitter.html#a9b5fa1cf7463e6e88308b85788e232a1" title="Connection to the babysitter process.">socket_to_babysitter</a>) != <a class="code" href="group__DBusInternalsUtils.html#ggaa1d634db87605c2a83f2750ce6052653a105d3aa9ec19f4c060b39c7fafba39ff" title="Read succeeded.">READ_STATUS_OK</a>)
<a name="l00565"></a>00565 close_socket_to_babysitter (sitter);
<a name="l00566"></a>00566 }
<a name="l00567"></a>00567 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (revents & (<a class="code" href="group__DBusSysdeps.html#ga231164196ff407eccb732452a2d36468" title="Error condition.">_DBUS_POLLERR</a> | <a class="code" href="group__DBusSysdeps.html#ga6f08232c1f943313e3eefd7de8f3592f" title="Hung up.">_DBUS_POLLHUP</a>))
<a name="l00568"></a>00568 {
<a name="l00569"></a>00569 close_socket_to_babysitter (sitter);
<a name="l00570"></a>00570 }
<a name="l00571"></a>00571 }
<a name="l00572"></a>00572
<a name="l00573"></a>00573 <span class="keyword">static</span> <span class="keywordtype">void</span>
<a name="l00574"></a>00574 handle_error_pipe (<a class="code" href="structDBusBabysitter.html" title="Babysitter implementation details.">DBusBabysitter</a> *sitter,
<a name="l00575"></a>00575 <span class="keywordtype">int</span> revents)
<a name="l00576"></a>00576 {
<a name="l00577"></a>00577 <span class="keywordflow">if</span> (revents & _DBUS_POLLIN)
<a name="l00578"></a>00578 {
<a name="l00579"></a>00579 _dbus_verbose (<span class="stringliteral">"Reading data from child error\n"</span>);
<a name="l00580"></a>00580 <span class="keywordflow">if</span> (read_data (sitter, sitter-><a class="code" href="structDBusBabysitter.html#abc42ea27fa4ee1e4f04819364e0a9bde" title="Connection to the process that does the exec()">error_pipe_from_child</a>) != <a class="code" href="group__DBusInternalsUtils.html#ggaa1d634db87605c2a83f2750ce6052653a105d3aa9ec19f4c060b39c7fafba39ff" title="Read succeeded.">READ_STATUS_OK</a>)
<a name="l00581"></a>00581 close_error_pipe_from_child (sitter);
<a name="l00582"></a>00582 }
<a name="l00583"></a>00583 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (revents & (<a class="code" href="group__DBusSysdeps.html#ga231164196ff407eccb732452a2d36468" title="Error condition.">_DBUS_POLLERR</a> | <a class="code" href="group__DBusSysdeps.html#ga6f08232c1f943313e3eefd7de8f3592f" title="Hung up.">_DBUS_POLLHUP</a>))
<a name="l00584"></a>00584 {
<a name="l00585"></a>00585 close_error_pipe_from_child (sitter);
<a name="l00586"></a>00586 }
<a name="l00587"></a>00587 }
<a name="l00588"></a>00588
<a name="l00589"></a>00589 <span class="comment">/* returns whether there were any poll events handled */</span>
<a name="l00590"></a>00590 <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>
<a name="l00591"></a>00591 babysitter_iteration (<a class="code" href="structDBusBabysitter.html" title="Babysitter implementation details.">DBusBabysitter</a> *sitter,
<a name="l00592"></a>00592 <a class="code" href="group__DBusTypes.html#ga39c9cb0f3a2a8ad6f55cc4855d035349" title="A boolean, valid values are TRUE and FALSE.">dbus_bool_t</a> block)
<a name="l00593"></a>00593 {
<a name="l00594"></a>00594 <a class="code" href="structDBusPollFD.html" title="A portable struct pollfd wrapper.">DBusPollFD</a> fds[2];
<a name="l00595"></a>00595 <span class="keywordtype">int</span> i;
<a name="l00596"></a>00596 <a class="code" href="group__DBusTypes.html#ga39c9cb0f3a2a8ad6f55cc4855d035349" title="A boolean, valid values are TRUE and FALSE.">dbus_bool_t</a> descriptors_ready;
<a name="l00597"></a>00597
<a name="l00598"></a>00598 descriptors_ready = <a class="code" href="group__DBusMacros.html#gaa93f0eb578d23995850d61f7d61c55c1" title="Expands to "0".">FALSE</a>;
<a name="l00599"></a>00599
<a name="l00600"></a>00600 i = 0;
<a name="l00601"></a>00601
<a name="l00602"></a>00602 <span class="keywordflow">if</span> (sitter-><a class="code" href="structDBusBabysitter.html#abc42ea27fa4ee1e4f04819364e0a9bde" title="Connection to the process that does the exec()">error_pipe_from_child</a> >= 0)
<a name="l00603"></a>00603 {
<a name="l00604"></a>00604 fds[i].<a class="code" href="structDBusPollFD.html#a10b23977d2f696abfd276b9077f8c97e" title="File descriptor.">fd</a> = sitter-><a class="code" href="structDBusBabysitter.html#abc42ea27fa4ee1e4f04819364e0a9bde" title="Connection to the process that does the exec()">error_pipe_from_child</a>;
<a name="l00605"></a>00605 fds[i].<a class="code" href="structDBusPollFD.html#a10e65e6721451e92361497b2efaa758f" title="Events to poll for.">events</a> = <a class="code" href="group__DBusSysdeps.html#ga96b5ba58b9939d789bfece0d9bb82f41" title="There is data to read.">_DBUS_POLLIN</a>;
<a name="l00606"></a>00606 fds[i].<a class="code" href="structDBusPollFD.html#a24bc29c766b8bbddc5da052e7a46bc9e" title="Events that occurred.">revents</a> = 0;
<a name="l00607"></a>00607 ++i;
<a name="l00608"></a>00608 }
<a name="l00609"></a>00609
<a name="l00610"></a>00610 <span class="keywordflow">if</span> (sitter-><a class="code" href="structDBusBabysitter.html#a9b5fa1cf7463e6e88308b85788e232a1" title="Connection to the babysitter process.">socket_to_babysitter</a> >= 0)
<a name="l00611"></a>00611 {
<a name="l00612"></a>00612 fds[i].<a class="code" href="structDBusPollFD.html#a10b23977d2f696abfd276b9077f8c97e" title="File descriptor.">fd</a> = sitter-><a class="code" href="structDBusBabysitter.html#a9b5fa1cf7463e6e88308b85788e232a1" title="Connection to the babysitter process.">socket_to_babysitter</a>;
<a name="l00613"></a>00613 fds[i].<a class="code" href="structDBusPollFD.html#a10e65e6721451e92361497b2efaa758f" title="Events to poll for.">events</a> = <a class="code" href="group__DBusSysdeps.html#ga96b5ba58b9939d789bfece0d9bb82f41" title="There is data to read.">_DBUS_POLLIN</a>;
<a name="l00614"></a>00614 fds[i].<a class="code" href="structDBusPollFD.html#a24bc29c766b8bbddc5da052e7a46bc9e" title="Events that occurred.">revents</a> = 0;
<a name="l00615"></a>00615 ++i;
<a name="l00616"></a>00616 }
<a name="l00617"></a>00617
<a name="l00618"></a>00618 <span class="keywordflow">if</span> (i > 0)
<a name="l00619"></a>00619 {
<a name="l00620"></a>00620 <span class="keywordtype">int</span> ret;
<a name="l00621"></a>00621
<a name="l00622"></a>00622 <span class="keywordflow">do</span>
<a name="l00623"></a>00623 {
<a name="l00624"></a>00624 ret = <a class="code" href="group__DBusSysdeps.html#gac1cdb5995dcef6dd54399ab610ae689a" title="Wrapper for poll().">_dbus_poll</a> (fds, i, 0);
<a name="l00625"></a>00625 }
<a name="l00626"></a>00626 <span class="keywordflow">while</span> (ret < 0 && errno == EINTR);
<a name="l00627"></a>00627
<a name="l00628"></a>00628 <span class="keywordflow">if</span> (ret == 0 && block)
<a name="l00629"></a>00629 {
<a name="l00630"></a>00630 <span class="keywordflow">do</span>
<a name="l00631"></a>00631 {
<a name="l00632"></a>00632 ret = <a class="code" href="group__DBusSysdeps.html#gac1cdb5995dcef6dd54399ab610ae689a" title="Wrapper for poll().">_dbus_poll</a> (fds, i, -1);
<a name="l00633"></a>00633 }
<a name="l00634"></a>00634 <span class="keywordflow">while</span> (ret < 0 && errno == EINTR);
<a name="l00635"></a>00635 }
<a name="l00636"></a>00636
<a name="l00637"></a>00637 <span class="keywordflow">if</span> (ret > 0)
<a name="l00638"></a>00638 {
<a name="l00639"></a>00639 descriptors_ready = <a class="code" href="group__DBusMacros.html#gaa8cecfc5c5c054d2875c03e77b7be15d" title="Expands to "1".">TRUE</a>;
<a name="l00640"></a>00640
<a name="l00641"></a>00641 <span class="keywordflow">while</span> (i > 0)
<a name="l00642"></a>00642 {
<a name="l00643"></a>00643 --i;
<a name="l00644"></a>00644 <span class="keywordflow">if</span> (fds[i].fd == sitter-><a class="code" href="structDBusBabysitter.html#abc42ea27fa4ee1e4f04819364e0a9bde" title="Connection to the process that does the exec()">error_pipe_from_child</a>)
<a name="l00645"></a>00645 handle_error_pipe (sitter, fds[i].revents);
<a name="l00646"></a>00646 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (fds[i].fd == sitter-><a class="code" href="structDBusBabysitter.html#a9b5fa1cf7463e6e88308b85788e232a1" title="Connection to the babysitter process.">socket_to_babysitter</a>)
<a name="l00647"></a>00647 handle_babysitter_socket (sitter, fds[i].revents);
<a name="l00648"></a>00648 }
<a name="l00649"></a>00649 }
<a name="l00650"></a>00650 }
<a name="l00651"></a>00651
<a name="l00652"></a>00652 <span class="keywordflow">return</span> descriptors_ready;
<a name="l00653"></a>00653 }
<a name="l00654"></a>00654
<a name="l00659"></a><a class="code" href="group__DBusInternalsUtils.html#gaf3ce8172242a1766bdd5cfe4b0a05d1f">00659</a> <span class="preprocessor">#define LIVE_CHILDREN(sitter) ((sitter)->socket_to_babysitter >= 0 || (sitter)->error_pipe_from_child >= 0)</span>
<a name="l00660"></a>00660 <span class="preprocessor"></span>
<a name="l00667"></a>00667 <span class="keywordtype">void</span>
<a name="l00668"></a><a class="code" href="group__DBusInternalsUtils.html#gacdc9c49735d6ce8364647c1961aa8d2b">00668</a> <a class="code" href="group__DBusInternalsUtils.html#gacdc9c49735d6ce8364647c1961aa8d2b" title="Blocks until the babysitter process gives us the PID of the spawned grandchild, then kills the spawne...">_dbus_babysitter_kill_child</a> (<a class="code" href="structDBusBabysitter.html" title="Babysitter implementation details.">DBusBabysitter</a> *sitter)
<a name="l00669"></a>00669 {
<a name="l00670"></a>00670 <span class="comment">/* be sure we have the PID of the child */</span>
<a name="l00671"></a>00671 <span class="keywordflow">while</span> (<a class="code" href="group__DBusInternalsUtils.html#gaf3ce8172242a1766bdd5cfe4b0a05d1f" title="Macro returns TRUE if the babysitter still has live sockets open to the babysitter child or the grand...">LIVE_CHILDREN</a> (sitter) &&
<a name="l00672"></a>00672 sitter-><a class="code" href="structDBusBabysitter.html#af0f5b85d39a7d2957ae83b3c594b88af" title="PID of the grandchild.">grandchild_pid</a> == -1)
<a name="l00673"></a>00673 babysitter_iteration (sitter, <a class="code" href="group__DBusMacros.html#gaa8cecfc5c5c054d2875c03e77b7be15d" title="Expands to "1".">TRUE</a>);
<a name="l00674"></a>00674
<a name="l00675"></a>00675 _dbus_verbose (<span class="stringliteral">"Got child PID %ld for killing\n"</span>,
<a name="l00676"></a>00676 (<span class="keywordtype">long</span>) sitter-><a class="code" href="structDBusBabysitter.html#af0f5b85d39a7d2957ae83b3c594b88af" title="PID of the grandchild.">grandchild_pid</a>);
<a name="l00677"></a>00677
<a name="l00678"></a>00678 <span class="keywordflow">if</span> (sitter-><a class="code" href="structDBusBabysitter.html#af0f5b85d39a7d2957ae83b3c594b88af" title="PID of the grandchild.">grandchild_pid</a> == -1)
<a name="l00679"></a>00679 <span class="keywordflow">return</span>; <span class="comment">/* child is already dead, or we're so hosed we'll never recover */</span>
<a name="l00680"></a>00680
<a name="l00681"></a>00681 kill (sitter-><a class="code" href="structDBusBabysitter.html#af0f5b85d39a7d2957ae83b3c594b88af" title="PID of the grandchild.">grandchild_pid</a>, SIGKILL);
<a name="l00682"></a>00682 }
<a name="l00683"></a>00683
<a name="l00689"></a>00689 <a class="code" href="group__DBusTypes.html#ga39c9cb0f3a2a8ad6f55cc4855d035349" title="A boolean, valid values are TRUE and FALSE.">dbus_bool_t</a>
<a name="l00690"></a><a class="code" href="group__DBusInternalsUtils.html#ga5c463ea356ea62055a35211e8d81f8b9">00690</a> <a class="code" href="group__DBusInternalsUtils.html#ga5c463ea356ea62055a35211e8d81f8b9" title="Checks whether the child has exited, without blocking.">_dbus_babysitter_get_child_exited</a> (<a class="code" href="structDBusBabysitter.html" title="Babysitter implementation details.">DBusBabysitter</a> *sitter)
<a name="l00691"></a>00691 {
<a name="l00692"></a>00692
<a name="l00693"></a>00693 <span class="comment">/* Be sure we're up-to-date */</span>
<a name="l00694"></a>00694 <span class="keywordflow">while</span> (<a class="code" href="group__DBusInternalsUtils.html#gaf3ce8172242a1766bdd5cfe4b0a05d1f" title="Macro returns TRUE if the babysitter still has live sockets open to the babysitter child or the grand...">LIVE_CHILDREN</a> (sitter) &&
<a name="l00695"></a>00695 babysitter_iteration (sitter, <a class="code" href="group__DBusMacros.html#gaa93f0eb578d23995850d61f7d61c55c1" title="Expands to "0".">FALSE</a>))
<a name="l00696"></a>00696 ;
<a name="l00697"></a>00697
<a name="l00698"></a>00698 <span class="comment">/* We will have exited the babysitter when the child has exited */</span>
<a name="l00699"></a>00699 <span class="keywordflow">return</span> sitter-><a class="code" href="structDBusBabysitter.html#a9b5fa1cf7463e6e88308b85788e232a1" title="Connection to the babysitter process.">socket_to_babysitter</a> < 0;
<a name="l00700"></a>00700 }
<a name="l00701"></a>00701
<a name="l00714"></a>00714 <a class="code" href="group__DBusTypes.html#ga39c9cb0f3a2a8ad6f55cc4855d035349" title="A boolean, valid values are TRUE and FALSE.">dbus_bool_t</a>
<a name="l00715"></a><a class="code" href="group__DBusInternalsUtils.html#ga1b17eec3f7915c21251685e16123f299">00715</a> <a class="code" href="group__DBusInternalsUtils.html#ga1b17eec3f7915c21251685e16123f299" title="Gets the exit status of the child.">_dbus_babysitter_get_child_exit_status</a> (<a class="code" href="structDBusBabysitter.html" title="Babysitter implementation details.">DBusBabysitter</a> *sitter,
<a name="l00716"></a>00716 <span class="keywordtype">int</span> *status)
<a name="l00717"></a>00717 {
<a name="l00718"></a>00718 <span class="keywordflow">if</span> (!<a class="code" href="group__DBusInternalsUtils.html#ga5c463ea356ea62055a35211e8d81f8b9" title="Checks whether the child has exited, without blocking.">_dbus_babysitter_get_child_exited</a> (sitter))
<a name="l00719"></a>00719 _dbus_assert_not_reached (<span class="stringliteral">"Child has not exited"</span>);
<a name="l00720"></a>00720
<a name="l00721"></a>00721 <span class="keywordflow">if</span> (!sitter->have_child_status ||
<a name="l00722"></a>00722 !(WIFEXITED (sitter-><a class="code" href="structDBusBabysitter.html#a6b3aa53fa01507b290bf575f5cc088e3" title="Exit status code.">status</a>)))
<a name="l00723"></a>00723 <span class="keywordflow">return</span> <a class="code" href="group__DBusMacros.html#gaa93f0eb578d23995850d61f7d61c55c1" title="Expands to "0".">FALSE</a>;
<a name="l00724"></a>00724
<a name="l00725"></a>00725 *status = WEXITSTATUS (sitter-><a class="code" href="structDBusBabysitter.html#a6b3aa53fa01507b290bf575f5cc088e3" title="Exit status code.">status</a>);
<a name="l00726"></a>00726 <span class="keywordflow">return</span> <a class="code" href="group__DBusMacros.html#gaa8cecfc5c5c054d2875c03e77b7be15d" title="Expands to "1".">TRUE</a>;
<a name="l00727"></a>00727 }
<a name="l00728"></a>00728
<a name="l00738"></a>00738 <span class="keywordtype">void</span>
<a name="l00739"></a><a class="code" href="group__DBusInternalsUtils.html#ga9c6f92a67e41f08d8eb254e294fd0378">00739</a> <a class="code" href="group__DBusInternalsUtils.html#ga9c6f92a67e41f08d8eb254e294fd0378" title="Sets the DBusError with an explanation of why the spawned child process exited (on a signal...">_dbus_babysitter_set_child_exit_error</a> (<a class="code" href="structDBusBabysitter.html" title="Babysitter implementation details.">DBusBabysitter</a> *sitter,
<a name="l00740"></a>00740 <a class="code" href="structDBusError.html" title="Object representing an exception.">DBusError</a> *error)
<a name="l00741"></a>00741 {
<a name="l00742"></a>00742 <span class="keywordflow">if</span> (!<a class="code" href="group__DBusInternalsUtils.html#ga5c463ea356ea62055a35211e8d81f8b9" title="Checks whether the child has exited, without blocking.">_dbus_babysitter_get_child_exited</a> (sitter))
<a name="l00743"></a>00743 <span class="keywordflow">return</span>;
<a name="l00744"></a>00744
<a name="l00745"></a>00745 <span class="comment">/* Note that if exec fails, we will also get a child status</span>
<a name="l00746"></a>00746 <span class="comment"> * from the babysitter saying the child exited,</span>
<a name="l00747"></a>00747 <span class="comment"> * so we need to give priority to the exec error</span>
<a name="l00748"></a>00748 <span class="comment"> */</span>
<a name="l00749"></a>00749 <span class="keywordflow">if</span> (sitter-><a class="code" href="structDBusBabysitter.html#a2275e6071accc74280cd354debb5f801" title="True if we have an error code from exec()">have_exec_errnum</a>)
<a name="l00750"></a>00750 {
<a name="l00751"></a>00751 <a class="code" href="group__DBusErrors.html#ga89d2ad4bde21f9e0057fac07a79885e3" title="Assigns an error name and message to a DBusError.">dbus_set_error</a> (error, <a class="code" href="group__DBusProtocol.html#gac04bc3bebee1674e93ef96aaa2b34b40" title="While starting a new process, the exec() call failed.">DBUS_ERROR_SPAWN_EXEC_FAILED</a>,
<a name="l00752"></a>00752 <span class="stringliteral">"Failed to execute program %s: %s"</span>,
<a name="l00753"></a>00753 sitter-><a class="code" href="structDBusBabysitter.html#aa5f57474dbc3603fd888430496769778" title="the name under which to log messages about this process being spawned">log_name</a>, _dbus_strerror (sitter-><a class="code" href="structDBusBabysitter.html#aaca14d66f484b0a3b06b395aa8485c70" title="Error number.">errnum</a>));
<a name="l00754"></a>00754 }
<a name="l00755"></a>00755 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (sitter-><a class="code" href="structDBusBabysitter.html#afc7d26bf84459ec406ddd615101018f9" title="True if we have an error code from fork()">have_fork_errnum</a>)
<a name="l00756"></a>00756 {
<a name="l00757"></a>00757 <a class="code" href="group__DBusErrors.html#ga89d2ad4bde21f9e0057fac07a79885e3" title="Assigns an error name and message to a DBusError.">dbus_set_error</a> (error, <a class="code" href="group__DBusProtocol.html#gac32eaf0b92f798307853cd4fe0cf11c2" title="There was not enough memory to complete an operation.">DBUS_ERROR_NO_MEMORY</a>,
<a name="l00758"></a>00758 <span class="stringliteral">"Failed to fork a new process %s: %s"</span>,
<a name="l00759"></a>00759 sitter-><a class="code" href="structDBusBabysitter.html#aa5f57474dbc3603fd888430496769778" title="the name under which to log messages about this process being spawned">log_name</a>, _dbus_strerror (sitter-><a class="code" href="structDBusBabysitter.html#aaca14d66f484b0a3b06b395aa8485c70" title="Error number.">errnum</a>));
<a name="l00760"></a>00760 }
<a name="l00761"></a>00761 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (sitter->have_child_status)
<a name="l00762"></a>00762 {
<a name="l00763"></a>00763 <span class="keywordflow">if</span> (WIFEXITED (sitter-><a class="code" href="structDBusBabysitter.html#a6b3aa53fa01507b290bf575f5cc088e3" title="Exit status code.">status</a>))
<a name="l00764"></a>00764 <a class="code" href="group__DBusErrors.html#ga89d2ad4bde21f9e0057fac07a79885e3" title="Assigns an error name and message to a DBusError.">dbus_set_error</a> (error, <a class="code" href="group__DBusProtocol.html#ga6cd00ac22b189360a7f0ce2f2b97975b" title="While starting a new process, the child exited with a status code.">DBUS_ERROR_SPAWN_CHILD_EXITED</a>,
<a name="l00765"></a>00765 <span class="stringliteral">"Process %s exited with status %d"</span>,
<a name="l00766"></a>00766 sitter-><a class="code" href="structDBusBabysitter.html#aa5f57474dbc3603fd888430496769778" title="the name under which to log messages about this process being spawned">log_name</a>, WEXITSTATUS (sitter-><a class="code" href="structDBusBabysitter.html#a6b3aa53fa01507b290bf575f5cc088e3" title="Exit status code.">status</a>));
<a name="l00767"></a>00767 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (WIFSIGNALED (sitter-><a class="code" href="structDBusBabysitter.html#a6b3aa53fa01507b290bf575f5cc088e3" title="Exit status code.">status</a>))
<a name="l00768"></a>00768 <a class="code" href="group__DBusErrors.html#ga89d2ad4bde21f9e0057fac07a79885e3" title="Assigns an error name and message to a DBusError.">dbus_set_error</a> (error, <a class="code" href="group__DBusProtocol.html#ga8404cd7fd5f0d62a63e26783bdf572ae" title="While starting a new process, the child exited on a signal.">DBUS_ERROR_SPAWN_CHILD_SIGNALED</a>,
<a name="l00769"></a>00769 <span class="stringliteral">"Process %s received signal %d"</span>,
<a name="l00770"></a>00770 sitter-><a class="code" href="structDBusBabysitter.html#aa5f57474dbc3603fd888430496769778" title="the name under which to log messages about this process being spawned">log_name</a>, WTERMSIG (sitter-><a class="code" href="structDBusBabysitter.html#a6b3aa53fa01507b290bf575f5cc088e3" title="Exit status code.">status</a>));
<a name="l00771"></a>00771 <span class="keywordflow">else</span>
<a name="l00772"></a>00772 <a class="code" href="group__DBusErrors.html#ga89d2ad4bde21f9e0057fac07a79885e3" title="Assigns an error name and message to a DBusError.">dbus_set_error</a> (error, <a class="code" href="group__DBusProtocol.html#gabb62fd6340d0787fbd56ff8dd2f326c7" title="A generic error; "something went wrong" - see the error message for more.">DBUS_ERROR_FAILED</a>,
<a name="l00773"></a>00773 <span class="stringliteral">"Process %s exited abnormally"</span>,
<a name="l00774"></a>00774 sitter-><a class="code" href="structDBusBabysitter.html#aa5f57474dbc3603fd888430496769778" title="the name under which to log messages about this process being spawned">log_name</a>);
<a name="l00775"></a>00775 }
<a name="l00776"></a>00776 <span class="keywordflow">else</span>
<a name="l00777"></a>00777 {
<a name="l00778"></a>00778 <a class="code" href="group__DBusErrors.html#ga89d2ad4bde21f9e0057fac07a79885e3" title="Assigns an error name and message to a DBusError.">dbus_set_error</a> (error, <a class="code" href="group__DBusProtocol.html#gabb62fd6340d0787fbd56ff8dd2f326c7" title="A generic error; "something went wrong" - see the error message for more.">DBUS_ERROR_FAILED</a>,
<a name="l00779"></a>00779 <span class="stringliteral">"Process %s exited, reason unknown"</span>,
<a name="l00780"></a>00780 sitter-><a class="code" href="structDBusBabysitter.html#aa5f57474dbc3603fd888430496769778" title="the name under which to log messages about this process being spawned">log_name</a>);
<a name="l00781"></a>00781 }
<a name="l00782"></a>00782 }
<a name="l00783"></a>00783
<a name="l00796"></a>00796 <a class="code" href="group__DBusTypes.html#ga39c9cb0f3a2a8ad6f55cc4855d035349" title="A boolean, valid values are TRUE and FALSE.">dbus_bool_t</a>
<a name="l00797"></a><a class="code" href="group__DBusInternalsUtils.html#ga5f467b14f0c2f667e46c4ba786808e5b">00797</a> <a class="code" href="group__DBusInternalsUtils.html#ga5f467b14f0c2f667e46c4ba786808e5b" title="Sets watch functions to notify us when the babysitter object needs to read/write file descriptors...">_dbus_babysitter_set_watch_functions</a> (<a class="code" href="structDBusBabysitter.html" title="Babysitter implementation details.">DBusBabysitter</a> *sitter,
<a name="l00798"></a>00798 <a class="code" href="group__DBusConnection.html#ga9188ca3fd89c957dc269dbe8601b270e" title="Called when libdbus needs a new watch to be monitored by the main loop.">DBusAddWatchFunction</a> add_function,
<a name="l00799"></a>00799 <a class="code" href="group__DBusConnection.html#gaaab846a872d938b27503129551ea0c62" title="Called when libdbus no longer needs a watch to be monitored by the main loop.">DBusRemoveWatchFunction</a> remove_function,
<a name="l00800"></a>00800 <a class="code" href="group__DBusConnection.html#gace13544ff3075b5fccbce896682ec6ff" title="Called when dbus_watch_get_enabled() may return a different value than it did before.">DBusWatchToggledFunction</a> toggled_function,
<a name="l00801"></a>00801 <span class="keywordtype">void</span> *data,
<a name="l00802"></a>00802 <a class="code" href="group__DBusMemory.html#ga061bcded226d76c7d7de35beaa165cb5" title="The type of a function which frees a block of memory.">DBusFreeFunction</a> free_data_function)
<a name="l00803"></a>00803 {
<a name="l00804"></a>00804 <span class="keywordflow">return</span> <a class="code" href="group__DBusWatchInternals.html#gae9ab8cf14f4191191e94183be9a031d9" title="Sets the watch functions.">_dbus_watch_list_set_functions</a> (sitter-><a class="code" href="structDBusBabysitter.html#ae0219a288aa52775dee075b80ab8c170" title="Watches.">watches</a>,
<a name="l00805"></a>00805 add_function,
<a name="l00806"></a>00806 remove_function,
<a name="l00807"></a>00807 toggled_function,
<a name="l00808"></a>00808 data,
<a name="l00809"></a>00809 free_data_function);
<a name="l00810"></a>00810 }
<a name="l00811"></a>00811
<a name="l00812"></a>00812 <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>
<a name="l00813"></a>00813 handle_watch (<a class="code" href="structDBusWatch.html" title="Implementation of DBusWatch.">DBusWatch</a> *watch,
<a name="l00814"></a>00814 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> condition,
<a name="l00815"></a>00815 <span class="keywordtype">void</span> *data)
<a name="l00816"></a>00816 {
<a name="l00817"></a>00817 <a class="code" href="structDBusBabysitter.html" title="Babysitter implementation details.">DBusBabysitter</a> *sitter = <a class="code" href="group__DBusInternalsUtils.html#ga525b5fdb780ddf6891918466965e6eb6" title="Increment the reference count on the babysitter object.">_dbus_babysitter_ref</a> (data);
<a name="l00818"></a>00818 <span class="keywordtype">int</span> revents;
<a name="l00819"></a>00819 <span class="keywordtype">int</span> fd;
<a name="l00820"></a>00820
<a name="l00821"></a>00821 revents = 0;
<a name="l00822"></a>00822 <span class="keywordflow">if</span> (condition & <a class="code" href="group__DBusConnection.html#gga0556779e61aeb19eb9cf6b6466bd1b98a178bd7a88e9bfbb8505db76eb7e0ccc4" title="As in POLLIN.">DBUS_WATCH_READABLE</a>)
<a name="l00823"></a>00823 revents |= <a class="code" href="group__DBusSysdeps.html#ga96b5ba58b9939d789bfece0d9bb82f41" title="There is data to read.">_DBUS_POLLIN</a>;
<a name="l00824"></a>00824 <span class="keywordflow">if</span> (condition & <a class="code" href="group__DBusConnection.html#gga0556779e61aeb19eb9cf6b6466bd1b98ab1474e26aa5be3d2876dd86bbe452156" title="As in POLLERR (can't watch for this, but can be present in current state passed to dbus_watch_handle(...">DBUS_WATCH_ERROR</a>)
<a name="l00825"></a>00825 revents |= <a class="code" href="group__DBusSysdeps.html#ga231164196ff407eccb732452a2d36468" title="Error condition.">_DBUS_POLLERR</a>;
<a name="l00826"></a>00826 <span class="keywordflow">if</span> (condition & <a class="code" href="group__DBusConnection.html#gga0556779e61aeb19eb9cf6b6466bd1b98a7a361a1a03f463c3c9e57f7368a0bfe4" title="As in POLLHUP (can't watch for it, but can be present in current state passed to dbus_watch_handle())...">DBUS_WATCH_HANGUP</a>)
<a name="l00827"></a>00827 revents |= <a class="code" href="group__DBusSysdeps.html#ga6f08232c1f943313e3eefd7de8f3592f" title="Hung up.">_DBUS_POLLHUP</a>;
<a name="l00828"></a>00828
<a name="l00829"></a>00829 fd = <a class="code" href="group__DBusWatch.html#ga91308f393d41b31babda17c83833517f" title="Returns a socket to be watched, on UNIX this will return -1 if our transport is not socket-based so d...">dbus_watch_get_socket</a> (watch);
<a name="l00830"></a>00830
<a name="l00831"></a>00831 <span class="keywordflow">if</span> (fd == sitter-><a class="code" href="structDBusBabysitter.html#abc42ea27fa4ee1e4f04819364e0a9bde" title="Connection to the process that does the exec()">error_pipe_from_child</a>)
<a name="l00832"></a>00832 handle_error_pipe (sitter, revents);
<a name="l00833"></a>00833 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (fd == sitter-><a class="code" href="structDBusBabysitter.html#a9b5fa1cf7463e6e88308b85788e232a1" title="Connection to the babysitter process.">socket_to_babysitter</a>)
<a name="l00834"></a>00834 handle_babysitter_socket (sitter, revents);
<a name="l00835"></a>00835
<a name="l00836"></a>00836 <span class="keywordflow">while</span> (<a class="code" href="group__DBusInternalsUtils.html#gaf3ce8172242a1766bdd5cfe4b0a05d1f" title="Macro returns TRUE if the babysitter still has live sockets open to the babysitter child or the grand...">LIVE_CHILDREN</a> (sitter) &&
<a name="l00837"></a>00837 babysitter_iteration (sitter, <a class="code" href="group__DBusMacros.html#gaa93f0eb578d23995850d61f7d61c55c1" title="Expands to "0".">FALSE</a>))
<a name="l00838"></a>00838 ;
<a name="l00839"></a>00839
<a name="l00840"></a>00840 <span class="comment">/* fd.o #32992: if the handle_* methods closed their sockets, they previously</span>
<a name="l00841"></a>00841 <span class="comment"> * didn't always remove the watches. Check that we don't regress. */</span>
<a name="l00842"></a>00842 _dbus_assert (sitter-><a class="code" href="structDBusBabysitter.html#a9b5fa1cf7463e6e88308b85788e232a1" title="Connection to the babysitter process.">socket_to_babysitter</a> != -1 || sitter-><a class="code" href="structDBusBabysitter.html#a1f01b1d3775f4b3437a01117cf8ddfcb" title="Sitter pipe watch.">sitter_watch</a> == <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>);
<a name="l00843"></a>00843 _dbus_assert (sitter-><a class="code" href="structDBusBabysitter.html#abc42ea27fa4ee1e4f04819364e0a9bde" title="Connection to the process that does the exec()">error_pipe_from_child</a> != -1 || sitter-><a class="code" href="structDBusBabysitter.html#ae89fdf7339b921a19728a2c8abfad251" title="Error pipe watch.">error_watch</a> == <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>);
<a name="l00844"></a>00844
<a name="l00845"></a>00845 <span class="keywordflow">if</span> (<a class="code" href="group__DBusInternalsUtils.html#ga5c463ea356ea62055a35211e8d81f8b9" title="Checks whether the child has exited, without blocking.">_dbus_babysitter_get_child_exited</a> (sitter) &&
<a name="l00846"></a>00846 sitter->finished_cb != <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>)
<a name="l00847"></a>00847 {
<a name="l00848"></a>00848 sitter->finished_cb (sitter, sitter->finished_data);
<a name="l00849"></a>00849 sitter->finished_cb = <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>;
<a name="l00850"></a>00850 }
<a name="l00851"></a>00851
<a name="l00852"></a>00852 <a class="code" href="group__DBusInternalsUtils.html#ga3205e9f8672271794aeb9d451e2fcc4a" title="Decrement the reference count on the babysitter object.">_dbus_babysitter_unref</a> (sitter);
<a name="l00853"></a>00853 <span class="keywordflow">return</span> <a class="code" href="group__DBusMacros.html#gaa8cecfc5c5c054d2875c03e77b7be15d" title="Expands to "1".">TRUE</a>;
<a name="l00854"></a>00854 }
<a name="l00855"></a>00855
<a name="l00857"></a><a class="code" href="group__DBusInternalsUtils.html#ga2469c53816dc077f9deefb187ffcabf3">00857</a> <span class="preprocessor">#define READ_END 0</span>
<a name="l00858"></a>00858 <span class="preprocessor"></span>
<a name="l00859"></a><a class="code" href="group__DBusInternalsUtils.html#ga2efd706d915e621e5e18b3f0803c4ed2">00859</a> <span class="preprocessor">#define WRITE_END 1</span>
<a name="l00860"></a>00860 <span class="preprocessor"></span>
<a name="l00861"></a>00861
<a name="l00862"></a>00862 <span class="comment">/* Avoids a danger in re-entrant situations (calling close()</span>
<a name="l00863"></a>00863 <span class="comment"> * on a file descriptor twice, and another module has</span>
<a name="l00864"></a>00864 <span class="comment"> * re-opened it since the first close).</span>
<a name="l00865"></a>00865 <span class="comment"> *</span>
<a name="l00866"></a>00866 <span class="comment"> * This previously claimed to be relevant for threaded situations, but by</span>
<a name="l00867"></a>00867 <span class="comment"> * trivial inspection, it is not thread-safe. It doesn't actually</span>
<a name="l00868"></a>00868 <span class="comment"> * matter, since this module is only used in the -util variant of the</span>
<a name="l00869"></a>00869 <span class="comment"> * library, which is only used in single-threaded situations.</span>
<a name="l00870"></a>00870 <span class="comment"> */</span>
<a name="l00871"></a>00871 <span class="keyword">static</span> <span class="keywordtype">int</span>
<a name="l00872"></a>00872 close_and_invalidate (<span class="keywordtype">int</span> *fd)
<a name="l00873"></a>00873 {
<a name="l00874"></a>00874 <span class="keywordtype">int</span> ret;
<a name="l00875"></a>00875
<a name="l00876"></a>00876 <span class="keywordflow">if</span> (*fd < 0)
<a name="l00877"></a>00877 <span class="keywordflow">return</span> -1;
<a name="l00878"></a>00878 <span class="keywordflow">else</span>
<a name="l00879"></a>00879 {
<a name="l00880"></a>00880 ret = <a class="code" href="group__DBusSysdeps.html#ga701f9b3087c196404f66ff95b4ace0b8" title="Closes a socket.">_dbus_close_socket</a> (*fd, <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>);
<a name="l00881"></a>00881 *fd = -1;
<a name="l00882"></a>00882 }
<a name="l00883"></a>00883
<a name="l00884"></a>00884 <span class="keywordflow">return</span> ret;
<a name="l00885"></a>00885 }
<a name="l00886"></a>00886
<a name="l00887"></a>00887 <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>
<a name="l00888"></a>00888 make_pipe (<span class="keywordtype">int</span> p[2],
<a name="l00889"></a>00889 <a class="code" href="structDBusError.html" title="Object representing an exception.">DBusError</a> *error)
<a name="l00890"></a>00890 {
<a name="l00891"></a>00891 <span class="keywordtype">int</span> retval;
<a name="l00892"></a>00892
<a name="l00893"></a>00893 <span class="preprocessor">#ifdef HAVE_PIPE2</span>
<a name="l00894"></a>00894 <span class="preprocessor"></span> <a class="code" href="group__DBusTypes.html#ga39c9cb0f3a2a8ad6f55cc4855d035349" title="A boolean, valid values are TRUE and FALSE.">dbus_bool_t</a> cloexec_done;
<a name="l00895"></a>00895
<a name="l00896"></a>00896 retval = pipe2 (p, O_CLOEXEC);
<a name="l00897"></a>00897 cloexec_done = retval >= 0;
<a name="l00898"></a>00898
<a name="l00899"></a>00899 <span class="comment">/* Check if kernel seems to be too old to know pipe2(). We assume</span>
<a name="l00900"></a>00900 <span class="comment"> that if pipe2 is available, O_CLOEXEC is too. */</span>
<a name="l00901"></a>00901 <span class="keywordflow">if</span> (retval < 0 && errno == ENOSYS)
<a name="l00902"></a>00902 <span class="preprocessor">#endif</span>
<a name="l00903"></a>00903 <span class="preprocessor"></span> {
<a name="l00904"></a>00904 retval = pipe(p);
<a name="l00905"></a>00905 }
<a name="l00906"></a>00906
<a name="l00907"></a>00907 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
<a name="l00908"></a>00908
<a name="l00909"></a>00909 <span class="keywordflow">if</span> (retval < 0)
<a name="l00910"></a>00910 {
<a name="l00911"></a>00911 <a class="code" href="group__DBusErrors.html#ga89d2ad4bde21f9e0057fac07a79885e3" title="Assigns an error name and message to a DBusError.">dbus_set_error</a> (error,
<a name="l00912"></a>00912 <a class="code" href="group__DBusProtocol.html#gac52e7ce94426443ff385994b539c6c38" title="While starting a new process, something went wrong.">DBUS_ERROR_SPAWN_FAILED</a>,
<a name="l00913"></a>00913 <span class="stringliteral">"Failed to create pipe for communicating with child process (%s)"</span>,
<a name="l00914"></a>00914 _dbus_strerror (errno));
<a name="l00915"></a>00915 <span class="keywordflow">return</span> <a class="code" href="group__DBusMacros.html#gaa93f0eb578d23995850d61f7d61c55c1" title="Expands to "0".">FALSE</a>;
<a name="l00916"></a>00916 }
<a name="l00917"></a>00917
<a name="l00918"></a>00918 <span class="preprocessor">#ifdef HAVE_PIPE2</span>
<a name="l00919"></a>00919 <span class="preprocessor"></span> <span class="keywordflow">if</span> (!cloexec_done)
<a name="l00920"></a>00920 <span class="preprocessor">#endif</span>
<a name="l00921"></a>00921 <span class="preprocessor"></span> {
<a name="l00922"></a>00922 <a class="code" href="group__DBusSysdeps.html#ga21ef96952f98f23e590ebbf060fd5ca6" title="Sets the file descriptor to be close on exec.">_dbus_fd_set_close_on_exec</a> (p[0]);
<a name="l00923"></a>00923 <a class="code" href="group__DBusSysdeps.html#ga21ef96952f98f23e590ebbf060fd5ca6" title="Sets the file descriptor to be close on exec.">_dbus_fd_set_close_on_exec</a> (p[1]);
<a name="l00924"></a>00924 }
<a name="l00925"></a>00925
<a name="l00926"></a>00926 <span class="keywordflow">return</span> <a class="code" href="group__DBusMacros.html#gaa8cecfc5c5c054d2875c03e77b7be15d" title="Expands to "1".">TRUE</a>;
<a name="l00927"></a>00927 }
<a name="l00928"></a>00928
<a name="l00929"></a>00929 <span class="keyword">static</span> <span class="keywordtype">void</span>
<a name="l00930"></a>00930 do_write (<span class="keywordtype">int</span> fd, <span class="keyword">const</span> <span class="keywordtype">void</span> *buf, <span class="keywordtype">size_t</span> count)
<a name="l00931"></a>00931 {
<a name="l00932"></a>00932 <span class="keywordtype">size_t</span> bytes_written;
<a name="l00933"></a>00933 <span class="keywordtype">int</span> ret;
<a name="l00934"></a>00934
<a name="l00935"></a>00935 bytes_written = 0;
<a name="l00936"></a>00936
<a name="l00937"></a>00937 again:
<a name="l00938"></a>00938
<a name="l00939"></a>00939 ret = write (fd, ((<span class="keyword">const</span> <span class="keywordtype">char</span>*)buf) + bytes_written, count - bytes_written);
<a name="l00940"></a>00940
<a name="l00941"></a>00941 <span class="keywordflow">if</span> (ret < 0)
<a name="l00942"></a>00942 {
<a name="l00943"></a>00943 <span class="keywordflow">if</span> (errno == EINTR)
<a name="l00944"></a>00944 <span class="keywordflow">goto</span> again;
<a name="l00945"></a>00945 <span class="keywordflow">else</span>
<a name="l00946"></a>00946 {
<a name="l00947"></a>00947 <a class="code" href="group__DBusInternalsUtils.html#gabea2c16d6d3fe7c4eb5b9496fc877f84" title="Prints a warning message to stderr.">_dbus_warn</a> (<span class="stringliteral">"Failed to write data to pipe!\n"</span>);
<a name="l00948"></a>00948 exit (1); <span class="comment">/* give up, we suck */</span>
<a name="l00949"></a>00949 }
<a name="l00950"></a>00950 }
<a name="l00951"></a>00951 <span class="keywordflow">else</span>
<a name="l00952"></a>00952 bytes_written += ret;
<a name="l00953"></a>00953
<a name="l00954"></a>00954 <span class="keywordflow">if</span> (bytes_written < count)
<a name="l00955"></a>00955 <span class="keywordflow">goto</span> again;
<a name="l00956"></a>00956 }
<a name="l00957"></a>00957
<a name="l00958"></a>00958 <span class="keyword">static</span> <span class="keywordtype">void</span>
<a name="l00959"></a>00959 write_err_and_exit (<span class="keywordtype">int</span> fd, <span class="keywordtype">int</span> msg)
<a name="l00960"></a>00960 {
<a name="l00961"></a>00961 <span class="keywordtype">int</span> en = errno;
<a name="l00962"></a>00962
<a name="l00963"></a>00963 do_write (fd, &msg, <span class="keyword">sizeof</span> (msg));
<a name="l00964"></a>00964 do_write (fd, &en, <span class="keyword">sizeof</span> (en));
<a name="l00965"></a>00965
<a name="l00966"></a>00966 exit (1);
<a name="l00967"></a>00967 }
<a name="l00968"></a>00968
<a name="l00969"></a>00969 <span class="keyword">static</span> <span class="keywordtype">void</span>
<a name="l00970"></a>00970 write_pid (<span class="keywordtype">int</span> fd, pid_t pid)
<a name="l00971"></a>00971 {
<a name="l00972"></a>00972 <span class="keywordtype">int</span> msg = CHILD_PID;
<a name="l00973"></a>00973
<a name="l00974"></a>00974 do_write (fd, &msg, <span class="keyword">sizeof</span> (msg));
<a name="l00975"></a>00975 do_write (fd, &pid, <span class="keyword">sizeof</span> (pid));
<a name="l00976"></a>00976 }
<a name="l00977"></a>00977
<a name="l00978"></a>00978 <span class="keyword">static</span> <span class="keywordtype">void</span>
<a name="l00979"></a>00979 write_status_and_exit (<span class="keywordtype">int</span> fd, <span class="keywordtype">int</span> status)
<a name="l00980"></a>00980 {
<a name="l00981"></a>00981 <span class="keywordtype">int</span> msg = CHILD_EXITED;
<a name="l00982"></a>00982
<a name="l00983"></a>00983 do_write (fd, &msg, <span class="keyword">sizeof</span> (msg));
<a name="l00984"></a>00984 do_write (fd, &status, <span class="keyword">sizeof</span> (status));
<a name="l00985"></a>00985
<a name="l00986"></a>00986 exit (0);
<a name="l00987"></a>00987 }
<a name="l00988"></a>00988
<a name="l00989"></a>00989 <span class="keyword">static</span> <span class="keywordtype">void</span>
<a name="l00990"></a>00990 do_exec (<span class="keywordtype">int</span> child_err_report_fd,
<a name="l00991"></a>00991 <span class="keywordtype">char</span> **argv,
<a name="l00992"></a>00992 <span class="keywordtype">char</span> **envp,
<a name="l00993"></a>00993 DBusSpawnChildSetupFunc child_setup,
<a name="l00994"></a>00994 <span class="keywordtype">void</span> *user_data)
<a name="l00995"></a>00995 {
<a name="l00996"></a>00996 <span class="preprocessor">#ifdef DBUS_ENABLE_EMBEDDED_TESTS</span>
<a name="l00997"></a>00997 <span class="preprocessor"></span> <span class="keywordtype">int</span> i, max_open;
<a name="l00998"></a>00998 <span class="preprocessor">#endif</span>
<a name="l00999"></a>00999 <span class="preprocessor"></span>
<a name="l01000"></a>01000 _dbus_verbose_reset ();
<a name="l01001"></a>01001 _dbus_verbose (<span class="stringliteral">"Child process has PID "</span> <a class="code" href="group__DBusSysdeps.html#gaf4553a43e3b8c0e43d9148a00dcc3fa4" title="an appropriate printf format for dbus_pid_t">DBUS_PID_FORMAT</a> <span class="stringliteral">"\n"</span>,
<a name="l01002"></a>01002 <a class="code" href="group__DBusSysdeps.html#ga870807b07f3b1c1a725eb9408edad147" title="Gets our process ID.">_dbus_getpid</a> ());
<a name="l01003"></a>01003
<a name="l01004"></a>01004 <span class="keywordflow">if</span> (child_setup)
<a name="l01005"></a>01005 (* child_setup) (user_data);
<a name="l01006"></a>01006
<a name="l01007"></a>01007 <span class="preprocessor">#ifdef DBUS_ENABLE_EMBEDDED_TESTS</span>
<a name="l01008"></a>01008 <span class="preprocessor"></span> max_open = sysconf (_SC_OPEN_MAX);
<a name="l01009"></a>01009
<a name="l01010"></a>01010 <span class="keywordflow">for</span> (i = 3; i < max_open; i++)
<a name="l01011"></a>01011 {
<a name="l01012"></a>01012 <span class="keywordtype">int</span> retval;
<a name="l01013"></a>01013
<a name="l01014"></a>01014 <span class="keywordflow">if</span> (i == child_err_report_fd)
<a name="l01015"></a>01015 <span class="keywordflow">continue</span>;
<a name="l01016"></a>01016
<a name="l01017"></a>01017 retval = fcntl (i, F_GETFD);
<a name="l01018"></a>01018
<a name="l01019"></a>01019 <span class="keywordflow">if</span> (retval != -1 && !(retval & FD_CLOEXEC))
<a name="l01020"></a>01020 <a class="code" href="group__DBusInternalsUtils.html#gabea2c16d6d3fe7c4eb5b9496fc877f84" title="Prints a warning message to stderr.">_dbus_warn</a> (<span class="stringliteral">"Fd %d did not have the close-on-exec flag set!\n"</span>, i);
<a name="l01021"></a>01021 }
<a name="l01022"></a>01022 <span class="preprocessor">#endif</span>
<a name="l01023"></a>01023 <span class="preprocessor"></span>
<a name="l01024"></a>01024 <span class="keywordflow">if</span> (envp == <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>)
<a name="l01025"></a>01025 {
<a name="l01026"></a>01026 _dbus_assert (environ != <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>);
<a name="l01027"></a>01027
<a name="l01028"></a>01028 envp = environ;
<a name="l01029"></a>01029 }
<a name="l01030"></a>01030
<a name="l01031"></a>01031 execve (argv[0], argv, envp);
<a name="l01032"></a>01032
<a name="l01033"></a>01033 <span class="comment">/* Exec failed */</span>
<a name="l01034"></a>01034 write_err_and_exit (child_err_report_fd,
<a name="l01035"></a>01035 CHILD_EXEC_FAILED);
<a name="l01036"></a>01036 }
<a name="l01037"></a>01037
<a name="l01038"></a>01038 <span class="keyword">static</span> <span class="keywordtype">void</span>
<a name="l01039"></a>01039 check_babysit_events (pid_t grandchild_pid,
<a name="l01040"></a>01040 <span class="keywordtype">int</span> parent_pipe,
<a name="l01041"></a>01041 <span class="keywordtype">int</span> revents)
<a name="l01042"></a>01042 {
<a name="l01043"></a>01043 pid_t ret;
<a name="l01044"></a>01044 <span class="keywordtype">int</span> status;
<a name="l01045"></a>01045
<a name="l01046"></a>01046 <span class="keywordflow">do</span>
<a name="l01047"></a>01047 {
<a name="l01048"></a>01048 ret = waitpid (grandchild_pid, &status, WNOHANG);
<a name="l01049"></a>01049 <span class="comment">/* The man page says EINTR can't happen with WNOHANG,</span>
<a name="l01050"></a>01050 <span class="comment"> * but there are reports of it (maybe only with valgrind?)</span>
<a name="l01051"></a>01051 <span class="comment"> */</span>
<a name="l01052"></a>01052 }
<a name="l01053"></a>01053 <span class="keywordflow">while</span> (ret < 0 && errno == EINTR);
<a name="l01054"></a>01054
<a name="l01055"></a>01055 <span class="keywordflow">if</span> (ret == 0)
<a name="l01056"></a>01056 {
<a name="l01057"></a>01057 _dbus_verbose (<span class="stringliteral">"no child exited\n"</span>);
<a name="l01058"></a>01058
<a name="l01059"></a>01059 ; <span class="comment">/* no child exited */</span>
<a name="l01060"></a>01060 }
<a name="l01061"></a>01061 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (ret < 0)
<a name="l01062"></a>01062 {
<a name="l01063"></a>01063 <span class="comment">/* This isn't supposed to happen. */</span>
<a name="l01064"></a>01064 <a class="code" href="group__DBusInternalsUtils.html#gabea2c16d6d3fe7c4eb5b9496fc877f84" title="Prints a warning message to stderr.">_dbus_warn</a> (<span class="stringliteral">"unexpected waitpid() failure in check_babysit_events(): %s\n"</span>,
<a name="l01065"></a>01065 _dbus_strerror (errno));
<a name="l01066"></a>01066 exit (1);
<a name="l01067"></a>01067 }
<a name="l01068"></a>01068 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (ret == grandchild_pid)
<a name="l01069"></a>01069 {
<a name="l01070"></a>01070 <span class="comment">/* Child exited */</span>
<a name="l01071"></a>01071 _dbus_verbose (<span class="stringliteral">"reaped child pid %ld\n"</span>, (<span class="keywordtype">long</span>) ret);
<a name="l01072"></a>01072
<a name="l01073"></a>01073 write_status_and_exit (parent_pipe, status);
<a name="l01074"></a>01074 }
<a name="l01075"></a>01075 <span class="keywordflow">else</span>
<a name="l01076"></a>01076 {
<a name="l01077"></a>01077 <a class="code" href="group__DBusInternalsUtils.html#gabea2c16d6d3fe7c4eb5b9496fc877f84" title="Prints a warning message to stderr.">_dbus_warn</a> (<span class="stringliteral">"waitpid() reaped pid %d that we've never heard of\n"</span>,
<a name="l01078"></a>01078 (<span class="keywordtype">int</span>) ret);
<a name="l01079"></a>01079 exit (1);
<a name="l01080"></a>01080 }
<a name="l01081"></a>01081
<a name="l01082"></a>01082 <span class="keywordflow">if</span> (revents & _DBUS_POLLIN)
<a name="l01083"></a>01083 {
<a name="l01084"></a>01084 _dbus_verbose (<span class="stringliteral">"babysitter got POLLIN from parent pipe\n"</span>);
<a name="l01085"></a>01085 }
<a name="l01086"></a>01086
<a name="l01087"></a>01087 <span class="keywordflow">if</span> (revents & (<a class="code" href="group__DBusSysdeps.html#ga231164196ff407eccb732452a2d36468" title="Error condition.">_DBUS_POLLERR</a> | <a class="code" href="group__DBusSysdeps.html#ga6f08232c1f943313e3eefd7de8f3592f" title="Hung up.">_DBUS_POLLHUP</a>))
<a name="l01088"></a>01088 {
<a name="l01089"></a>01089 <span class="comment">/* Parent is gone, so we just exit */</span>
<a name="l01090"></a>01090 _dbus_verbose (<span class="stringliteral">"babysitter got POLLERR or POLLHUP from parent\n"</span>);
<a name="l01091"></a>01091 exit (0);
<a name="l01092"></a>01092 }
<a name="l01093"></a>01093 }
<a name="l01094"></a>01094
<a name="l01095"></a>01095 <span class="keyword">static</span> <span class="keywordtype">int</span> babysit_sigchld_pipe = -1;
<a name="l01096"></a>01096
<a name="l01097"></a>01097 <span class="keyword">static</span> <span class="keywordtype">void</span>
<a name="l01098"></a>01098 babysit_signal_handler (<span class="keywordtype">int</span> signo)
<a name="l01099"></a>01099 {
<a name="l01100"></a>01100 <span class="keywordtype">char</span> b = <span class="charliteral">'\0'</span>;
<a name="l01101"></a>01101 again:
<a name="l01102"></a>01102 <span class="keywordflow">if</span> (write (babysit_sigchld_pipe, &b, 1) <= 0)
<a name="l01103"></a>01103 <span class="keywordflow">if</span> (errno == EINTR)
<a name="l01104"></a>01104 <span class="keywordflow">goto</span> again;
<a name="l01105"></a>01105 }
<a name="l01106"></a>01106
<a name="l01107"></a>01107 <span class="keyword">static</span> <span class="keywordtype">void</span>
<a name="l01108"></a>01108 babysit (pid_t grandchild_pid,
<a name="l01109"></a>01109 <span class="keywordtype">int</span> parent_pipe)
<a name="l01110"></a>01110 {
<a name="l01111"></a>01111 <span class="keywordtype">int</span> sigchld_pipe[2];
<a name="l01112"></a>01112
<a name="l01113"></a>01113 <span class="comment">/* We don't exec, so we keep parent state, such as the pid that</span>
<a name="l01114"></a>01114 <span class="comment"> * _dbus_verbose() uses. Reset the pid here.</span>
<a name="l01115"></a>01115 <span class="comment"> */</span>
<a name="l01116"></a>01116 _dbus_verbose_reset ();
<a name="l01117"></a>01117
<a name="l01118"></a>01118 <span class="comment">/* I thought SIGCHLD would just wake up the poll, but</span>
<a name="l01119"></a>01119 <span class="comment"> * that didn't seem to work, so added this pipe.</span>
<a name="l01120"></a>01120 <span class="comment"> * Probably the pipe is more likely to work on busted</span>
<a name="l01121"></a>01121 <span class="comment"> * operating systems anyhow.</span>
<a name="l01122"></a>01122 <span class="comment"> */</span>
<a name="l01123"></a>01123 <span class="keywordflow">if</span> (pipe (sigchld_pipe) < 0)
<a name="l01124"></a>01124 {
<a name="l01125"></a>01125 <a class="code" href="group__DBusInternalsUtils.html#gabea2c16d6d3fe7c4eb5b9496fc877f84" title="Prints a warning message to stderr.">_dbus_warn</a> (<span class="stringliteral">"Not enough file descriptors to create pipe in babysitter process\n"</span>);
<a name="l01126"></a>01126 exit (1);
<a name="l01127"></a>01127 }
<a name="l01128"></a>01128
<a name="l01129"></a>01129 babysit_sigchld_pipe = sigchld_pipe[<a class="code" href="group__DBusInternalsUtils.html#ga2efd706d915e621e5e18b3f0803c4ed2" title="Helps remember which end of the pipe is which.">WRITE_END</a>];
<a name="l01130"></a>01130
<a name="l01131"></a>01131 <a class="code" href="group__DBusInternalsUtils.html#ga4aa7500366dad2dd6d3fa97b3aa7165b" title="Installs a UNIX signal handler.">_dbus_set_signal_handler</a> (SIGCHLD, babysit_signal_handler);
<a name="l01132"></a>01132
<a name="l01133"></a>01133 write_pid (parent_pipe, grandchild_pid);
<a name="l01134"></a>01134
<a name="l01135"></a>01135 check_babysit_events (grandchild_pid, parent_pipe, 0);
<a name="l01136"></a>01136
<a name="l01137"></a>01137 <span class="keywordflow">while</span> (<a class="code" href="group__DBusMacros.html#gaa8cecfc5c5c054d2875c03e77b7be15d" title="Expands to "1".">TRUE</a>)
<a name="l01138"></a>01138 {
<a name="l01139"></a>01139 <a class="code" href="structDBusPollFD.html" title="A portable struct pollfd wrapper.">DBusPollFD</a> pfds[2];
<a name="l01140"></a>01140
<a name="l01141"></a>01141 pfds[0].<a class="code" href="structDBusPollFD.html#a10b23977d2f696abfd276b9077f8c97e" title="File descriptor.">fd</a> = parent_pipe;
<a name="l01142"></a>01142 pfds[0].<a class="code" href="structDBusPollFD.html#a10e65e6721451e92361497b2efaa758f" title="Events to poll for.">events</a> = <a class="code" href="group__DBusSysdeps.html#ga96b5ba58b9939d789bfece0d9bb82f41" title="There is data to read.">_DBUS_POLLIN</a>;
<a name="l01143"></a>01143 pfds[0].<a class="code" href="structDBusPollFD.html#a24bc29c766b8bbddc5da052e7a46bc9e" title="Events that occurred.">revents</a> = 0;
<a name="l01144"></a>01144
<a name="l01145"></a>01145 pfds[1].<a class="code" href="structDBusPollFD.html#a10b23977d2f696abfd276b9077f8c97e" title="File descriptor.">fd</a> = sigchld_pipe[<a class="code" href="group__DBusInternalsUtils.html#ga2469c53816dc077f9deefb187ffcabf3" title="Helps remember which end of the pipe is which.">READ_END</a>];
<a name="l01146"></a>01146 pfds[1].<a class="code" href="structDBusPollFD.html#a10e65e6721451e92361497b2efaa758f" title="Events to poll for.">events</a> = <a class="code" href="group__DBusSysdeps.html#ga96b5ba58b9939d789bfece0d9bb82f41" title="There is data to read.">_DBUS_POLLIN</a>;
<a name="l01147"></a>01147 pfds[1].<a class="code" href="structDBusPollFD.html#a24bc29c766b8bbddc5da052e7a46bc9e" title="Events that occurred.">revents</a> = 0;
<a name="l01148"></a>01148
<a name="l01149"></a>01149 <span class="keywordflow">if</span> (<a class="code" href="group__DBusSysdeps.html#gac1cdb5995dcef6dd54399ab610ae689a" title="Wrapper for poll().">_dbus_poll</a> (pfds, _DBUS_N_ELEMENTS (pfds), -1) < 0 && errno != EINTR)
<a name="l01150"></a>01150 {
<a name="l01151"></a>01151 <a class="code" href="group__DBusInternalsUtils.html#gabea2c16d6d3fe7c4eb5b9496fc877f84" title="Prints a warning message to stderr.">_dbus_warn</a> (<span class="stringliteral">"_dbus_poll() error: %s\n"</span>, strerror (errno));
<a name="l01152"></a>01152 exit (1);
<a name="l01153"></a>01153 }
<a name="l01154"></a>01154
<a name="l01155"></a>01155 <span class="keywordflow">if</span> (pfds[0].revents != 0)
<a name="l01156"></a>01156 {
<a name="l01157"></a>01157 check_babysit_events (grandchild_pid, parent_pipe, pfds[0].revents);
<a name="l01158"></a>01158 }
<a name="l01159"></a>01159 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (pfds[1].revents & _DBUS_POLLIN)
<a name="l01160"></a>01160 {
<a name="l01161"></a>01161 <span class="keywordtype">char</span> b;
<a name="l01162"></a>01162 <span class="keywordflow">if</span> (read (sigchld_pipe[<a class="code" href="group__DBusInternalsUtils.html#ga2469c53816dc077f9deefb187ffcabf3" title="Helps remember which end of the pipe is which.">READ_END</a>], &b, 1) == -1)
<a name="l01163"></a>01163 {
<a name="l01164"></a>01164 <span class="comment">/* ignore */</span>
<a name="l01165"></a>01165 }
<a name="l01166"></a>01166 <span class="comment">/* do waitpid check */</span>
<a name="l01167"></a>01167 check_babysit_events (grandchild_pid, parent_pipe, 0);
<a name="l01168"></a>01168 }
<a name="l01169"></a>01169 }
<a name="l01170"></a>01170
<a name="l01171"></a>01171 exit (1);
<a name="l01172"></a>01172 }
<a name="l01173"></a>01173
<a name="l01193"></a>01193 <a class="code" href="group__DBusTypes.html#ga39c9cb0f3a2a8ad6f55cc4855d035349" title="A boolean, valid values are TRUE and FALSE.">dbus_bool_t</a>
<a name="l01194"></a><a class="code" href="group__DBusInternalsUtils.html#gaed0b5af565252185dedf99df5da8efc5">01194</a> <a class="code" href="group__DBusInternalsUtils.html#gaed0b5af565252185dedf99df5da8efc5" title="Spawns a new process.">_dbus_spawn_async_with_babysitter</a> (<a class="code" href="structDBusBabysitter.html" title="Babysitter implementation details.">DBusBabysitter</a> **sitter_p,
<a name="l01195"></a>01195 <span class="keyword">const</span> <span class="keywordtype">char</span> *log_name,
<a name="l01196"></a>01196 <span class="keywordtype">char</span> **argv,
<a name="l01197"></a>01197 <span class="keywordtype">char</span> **env,
<a name="l01198"></a>01198 DBusSpawnChildSetupFunc child_setup,
<a name="l01199"></a>01199 <span class="keywordtype">void</span> *user_data,
<a name="l01200"></a>01200 <a class="code" href="structDBusError.html" title="Object representing an exception.">DBusError</a> *error)
<a name="l01201"></a>01201 {
<a name="l01202"></a>01202 <a class="code" href="structDBusBabysitter.html" title="Babysitter implementation details.">DBusBabysitter</a> *sitter;
<a name="l01203"></a>01203 <span class="keywordtype">int</span> child_err_report_pipe[2] = { -1, -1 };
<a name="l01204"></a>01204 <span class="keywordtype">int</span> babysitter_pipe[2] = { -1, -1 };
<a name="l01205"></a>01205 pid_t pid;
<a name="l01206"></a>01206 <span class="preprocessor">#ifdef HAVE_SYSTEMD</span>
<a name="l01207"></a>01207 <span class="preprocessor"></span> <span class="keywordtype">int</span> fd_out = -1;
<a name="l01208"></a>01208 <span class="keywordtype">int</span> fd_err = -1;
<a name="l01209"></a>01209 <span class="preprocessor">#endif</span>
<a name="l01210"></a>01210 <span class="preprocessor"></span>
<a name="l01211"></a>01211 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
<a name="l01212"></a>01212 _dbus_assert (argv[0] != <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>);
<a name="l01213"></a>01213
<a name="l01214"></a>01214 <span class="keywordflow">if</span> (sitter_p != <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>)
<a name="l01215"></a>01215 *sitter_p = <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>;
<a name="l01216"></a>01216
<a name="l01217"></a>01217 sitter = <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>;
<a name="l01218"></a>01218
<a name="l01219"></a>01219 sitter = _dbus_babysitter_new ();
<a name="l01220"></a>01220 <span class="keywordflow">if</span> (sitter == <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>)
<a name="l01221"></a>01221 {
<a name="l01222"></a>01222 <a class="code" href="group__DBusErrors.html#ga89d2ad4bde21f9e0057fac07a79885e3" title="Assigns an error name and message to a DBusError.">dbus_set_error</a> (error, <a class="code" href="group__DBusProtocol.html#gac32eaf0b92f798307853cd4fe0cf11c2" title="There was not enough memory to complete an operation.">DBUS_ERROR_NO_MEMORY</a>, <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>);
<a name="l01223"></a>01223 <span class="keywordflow">return</span> <a class="code" href="group__DBusMacros.html#gaa93f0eb578d23995850d61f7d61c55c1" title="Expands to "0".">FALSE</a>;
<a name="l01224"></a>01224 }
<a name="l01225"></a>01225
<a name="l01226"></a>01226 sitter-><a class="code" href="structDBusBabysitter.html#aa5f57474dbc3603fd888430496769778" title="the name under which to log messages about this process being spawned">log_name</a> = <a class="code" href="group__DBusInternalsUtils.html#ga9d00d77f6595b9d7ac1baf59d44bf58c" title="Duplicates a string.">_dbus_strdup</a> (log_name);
<a name="l01227"></a>01227 <span class="keywordflow">if</span> (sitter-><a class="code" href="structDBusBabysitter.html#aa5f57474dbc3603fd888430496769778" title="the name under which to log messages about this process being spawned">log_name</a> == <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a> && log_name != <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>)
<a name="l01228"></a>01228 {
<a name="l01229"></a>01229 <a class="code" href="group__DBusErrors.html#ga89d2ad4bde21f9e0057fac07a79885e3" title="Assigns an error name and message to a DBusError.">dbus_set_error</a> (error, <a class="code" href="group__DBusProtocol.html#gac32eaf0b92f798307853cd4fe0cf11c2" title="There was not enough memory to complete an operation.">DBUS_ERROR_NO_MEMORY</a>, <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>);
<a name="l01230"></a>01230 <span class="keywordflow">goto</span> cleanup_and_fail;
<a name="l01231"></a>01231 }
<a name="l01232"></a>01232
<a name="l01233"></a>01233 <span class="keywordflow">if</span> (sitter-><a class="code" href="structDBusBabysitter.html#aa5f57474dbc3603fd888430496769778" title="the name under which to log messages about this process being spawned">log_name</a> == <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>)
<a name="l01234"></a>01234 sitter-><a class="code" href="structDBusBabysitter.html#aa5f57474dbc3603fd888430496769778" title="the name under which to log messages about this process being spawned">log_name</a> = <a class="code" href="group__DBusInternalsUtils.html#ga9d00d77f6595b9d7ac1baf59d44bf58c" title="Duplicates a string.">_dbus_strdup</a> (argv[0]);
<a name="l01235"></a>01235
<a name="l01236"></a>01236 <span class="keywordflow">if</span> (sitter-><a class="code" href="structDBusBabysitter.html#aa5f57474dbc3603fd888430496769778" title="the name under which to log messages about this process being spawned">log_name</a> == <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>)
<a name="l01237"></a>01237 {
<a name="l01238"></a>01238 <a class="code" href="group__DBusErrors.html#ga89d2ad4bde21f9e0057fac07a79885e3" title="Assigns an error name and message to a DBusError.">dbus_set_error</a> (error, <a class="code" href="group__DBusProtocol.html#gac32eaf0b92f798307853cd4fe0cf11c2" title="There was not enough memory to complete an operation.">DBUS_ERROR_NO_MEMORY</a>, <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>);
<a name="l01239"></a>01239 <span class="keywordflow">goto</span> cleanup_and_fail;
<a name="l01240"></a>01240 }
<a name="l01241"></a>01241
<a name="l01242"></a>01242 <span class="keywordflow">if</span> (!make_pipe (child_err_report_pipe, error))
<a name="l01243"></a>01243 <span class="keywordflow">goto</span> cleanup_and_fail;
<a name="l01244"></a>01244
<a name="l01245"></a>01245 <span class="keywordflow">if</span> (!<a class="code" href="group__DBusSysdeps.html#gae96a3f400324b065f78a865a86454d09" title="Creates a full-duplex pipe (as in socketpair()).">_dbus_full_duplex_pipe</a> (&babysitter_pipe[0], &babysitter_pipe[1], <a class="code" href="group__DBusMacros.html#gaa8cecfc5c5c054d2875c03e77b7be15d" title="Expands to "1".">TRUE</a>, error))
<a name="l01246"></a>01246 <span class="keywordflow">goto</span> cleanup_and_fail;
<a name="l01247"></a>01247
<a name="l01248"></a>01248 <span class="comment">/* Setting up the babysitter is only useful in the parent,</span>
<a name="l01249"></a>01249 <span class="comment"> * but we don't want to run out of memory and fail</span>
<a name="l01250"></a>01250 <span class="comment"> * after we've already forked, since then we'd leak</span>
<a name="l01251"></a>01251 <span class="comment"> * child processes everywhere.</span>
<a name="l01252"></a>01252 <span class="comment"> */</span>
<a name="l01253"></a>01253 sitter-><a class="code" href="structDBusBabysitter.html#ae89fdf7339b921a19728a2c8abfad251" title="Error pipe watch.">error_watch</a> = <a class="code" href="group__DBusWatchInternals.html#ga1f940e505b20e6429ae858a7b70b0541" title="Creates a new DBusWatch.">_dbus_watch_new</a> (child_err_report_pipe[<a class="code" href="group__DBusInternalsUtils.html#ga2469c53816dc077f9deefb187ffcabf3" title="Helps remember which end of the pipe is which.">READ_END</a>],
<a name="l01254"></a>01254 DBUS_WATCH_READABLE,
<a name="l01255"></a>01255 <a class="code" href="group__DBusMacros.html#gaa8cecfc5c5c054d2875c03e77b7be15d" title="Expands to "1".">TRUE</a>, handle_watch, sitter, <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>);
<a name="l01256"></a>01256 <span class="keywordflow">if</span> (sitter-><a class="code" href="structDBusBabysitter.html#ae89fdf7339b921a19728a2c8abfad251" title="Error pipe watch.">error_watch</a> == <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>)
<a name="l01257"></a>01257 {
<a name="l01258"></a>01258 <a class="code" href="group__DBusErrors.html#ga89d2ad4bde21f9e0057fac07a79885e3" title="Assigns an error name and message to a DBusError.">dbus_set_error</a> (error, <a class="code" href="group__DBusProtocol.html#gac32eaf0b92f798307853cd4fe0cf11c2" title="There was not enough memory to complete an operation.">DBUS_ERROR_NO_MEMORY</a>, <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>);
<a name="l01259"></a>01259 <span class="keywordflow">goto</span> cleanup_and_fail;
<a name="l01260"></a>01260 }
<a name="l01261"></a>01261
<a name="l01262"></a>01262 <span class="keywordflow">if</span> (!<a class="code" href="group__DBusWatchInternals.html#gaec61655a4bd6186a6a1ec104771d8af5" title="Adds a new watch to the watch list, invoking the application DBusAddWatchFunction if appropriate...">_dbus_watch_list_add_watch</a> (sitter-><a class="code" href="structDBusBabysitter.html#ae0219a288aa52775dee075b80ab8c170" title="Watches.">watches</a>, sitter-><a class="code" href="structDBusBabysitter.html#ae89fdf7339b921a19728a2c8abfad251" title="Error pipe watch.">error_watch</a>))
<a name="l01263"></a>01263 {
<a name="l01264"></a>01264 <span class="comment">/* we need to free it early so the destructor won't try to remove it</span>
<a name="l01265"></a>01265 <span class="comment"> * without it having been added, which DBusLoop doesn't allow */</span>
<a name="l01266"></a>01266 <a class="code" href="group__DBusWatchInternals.html#gad8521d64123c1d1ae9a094bac8addd31" title="Clears the file descriptor from a now-invalid watch object so that no one tries to use it...">_dbus_watch_invalidate</a> (sitter-><a class="code" href="structDBusBabysitter.html#ae89fdf7339b921a19728a2c8abfad251" title="Error pipe watch.">error_watch</a>);
<a name="l01267"></a>01267 <a class="code" href="group__DBusWatchInternals.html#ga7d27dfc13a3ccfbaa99ceab331bb46f0" title="Decrements the reference count of a DBusWatch object and finalizes the object if the count reaches ze...">_dbus_watch_unref</a> (sitter-><a class="code" href="structDBusBabysitter.html#ae89fdf7339b921a19728a2c8abfad251" title="Error pipe watch.">error_watch</a>);
<a name="l01268"></a>01268 sitter-><a class="code" href="structDBusBabysitter.html#ae89fdf7339b921a19728a2c8abfad251" title="Error pipe watch.">error_watch</a> = <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>;
<a name="l01269"></a>01269
<a name="l01270"></a>01270 <a class="code" href="group__DBusErrors.html#ga89d2ad4bde21f9e0057fac07a79885e3" title="Assigns an error name and message to a DBusError.">dbus_set_error</a> (error, <a class="code" href="group__DBusProtocol.html#gac32eaf0b92f798307853cd4fe0cf11c2" title="There was not enough memory to complete an operation.">DBUS_ERROR_NO_MEMORY</a>, <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>);
<a name="l01271"></a>01271 <span class="keywordflow">goto</span> cleanup_and_fail;
<a name="l01272"></a>01272 }
<a name="l01273"></a>01273
<a name="l01274"></a>01274 sitter-><a class="code" href="structDBusBabysitter.html#a1f01b1d3775f4b3437a01117cf8ddfcb" title="Sitter pipe watch.">sitter_watch</a> = <a class="code" href="group__DBusWatchInternals.html#ga1f940e505b20e6429ae858a7b70b0541" title="Creates a new DBusWatch.">_dbus_watch_new</a> (babysitter_pipe[0],
<a name="l01275"></a>01275 DBUS_WATCH_READABLE,
<a name="l01276"></a>01276 <a class="code" href="group__DBusMacros.html#gaa8cecfc5c5c054d2875c03e77b7be15d" title="Expands to "1".">TRUE</a>, handle_watch, sitter, <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>);
<a name="l01277"></a>01277 <span class="keywordflow">if</span> (sitter-><a class="code" href="structDBusBabysitter.html#a1f01b1d3775f4b3437a01117cf8ddfcb" title="Sitter pipe watch.">sitter_watch</a> == <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>)
<a name="l01278"></a>01278 {
<a name="l01279"></a>01279 <a class="code" href="group__DBusErrors.html#ga89d2ad4bde21f9e0057fac07a79885e3" title="Assigns an error name and message to a DBusError.">dbus_set_error</a> (error, <a class="code" href="group__DBusProtocol.html#gac32eaf0b92f798307853cd4fe0cf11c2" title="There was not enough memory to complete an operation.">DBUS_ERROR_NO_MEMORY</a>, <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>);
<a name="l01280"></a>01280 <span class="keywordflow">goto</span> cleanup_and_fail;
<a name="l01281"></a>01281 }
<a name="l01282"></a>01282
<a name="l01283"></a>01283 <span class="keywordflow">if</span> (!<a class="code" href="group__DBusWatchInternals.html#gaec61655a4bd6186a6a1ec104771d8af5" title="Adds a new watch to the watch list, invoking the application DBusAddWatchFunction if appropriate...">_dbus_watch_list_add_watch</a> (sitter-><a class="code" href="structDBusBabysitter.html#ae0219a288aa52775dee075b80ab8c170" title="Watches.">watches</a>, sitter-><a class="code" href="structDBusBabysitter.html#a1f01b1d3775f4b3437a01117cf8ddfcb" title="Sitter pipe watch.">sitter_watch</a>))
<a name="l01284"></a>01284 {
<a name="l01285"></a>01285 <span class="comment">/* we need to free it early so the destructor won't try to remove it</span>
<a name="l01286"></a>01286 <span class="comment"> * without it having been added, which DBusLoop doesn't allow */</span>
<a name="l01287"></a>01287 <a class="code" href="group__DBusWatchInternals.html#gad8521d64123c1d1ae9a094bac8addd31" title="Clears the file descriptor from a now-invalid watch object so that no one tries to use it...">_dbus_watch_invalidate</a> (sitter-><a class="code" href="structDBusBabysitter.html#a1f01b1d3775f4b3437a01117cf8ddfcb" title="Sitter pipe watch.">sitter_watch</a>);
<a name="l01288"></a>01288 <a class="code" href="group__DBusWatchInternals.html#ga7d27dfc13a3ccfbaa99ceab331bb46f0" title="Decrements the reference count of a DBusWatch object and finalizes the object if the count reaches ze...">_dbus_watch_unref</a> (sitter-><a class="code" href="structDBusBabysitter.html#a1f01b1d3775f4b3437a01117cf8ddfcb" title="Sitter pipe watch.">sitter_watch</a>);
<a name="l01289"></a>01289 sitter-><a class="code" href="structDBusBabysitter.html#a1f01b1d3775f4b3437a01117cf8ddfcb" title="Sitter pipe watch.">sitter_watch</a> = <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>;
<a name="l01290"></a>01290
<a name="l01291"></a>01291 <a class="code" href="group__DBusErrors.html#ga89d2ad4bde21f9e0057fac07a79885e3" title="Assigns an error name and message to a DBusError.">dbus_set_error</a> (error, <a class="code" href="group__DBusProtocol.html#gac32eaf0b92f798307853cd4fe0cf11c2" title="There was not enough memory to complete an operation.">DBUS_ERROR_NO_MEMORY</a>, <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>);
<a name="l01292"></a>01292 <span class="keywordflow">goto</span> cleanup_and_fail;
<a name="l01293"></a>01293 }
<a name="l01294"></a>01294
<a name="l01295"></a>01295 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
<a name="l01296"></a>01296
<a name="l01297"></a>01297 <span class="preprocessor">#ifdef HAVE_SYSTEMD</span>
<a name="l01298"></a>01298 <span class="preprocessor"></span> <span class="comment">/* This may fail, but it's not critical.</span>
<a name="l01299"></a>01299 <span class="comment"> * In particular, if we were compiled with journald support but are now</span>
<a name="l01300"></a>01300 <span class="comment"> * running on a non-systemd system, this is going to fail, so we</span>
<a name="l01301"></a>01301 <span class="comment"> * have to cope gracefully. */</span>
<a name="l01302"></a>01302 fd_out = sd_journal_stream_fd (sitter-><a class="code" href="structDBusBabysitter.html#aa5f57474dbc3603fd888430496769778" title="the name under which to log messages about this process being spawned">log_name</a>, LOG_INFO, <a class="code" href="group__DBusMacros.html#gaa93f0eb578d23995850d61f7d61c55c1" title="Expands to "0".">FALSE</a>);
<a name="l01303"></a>01303 fd_err = sd_journal_stream_fd (sitter-><a class="code" href="structDBusBabysitter.html#aa5f57474dbc3603fd888430496769778" title="the name under which to log messages about this process being spawned">log_name</a>, LOG_WARNING, <a class="code" href="group__DBusMacros.html#gaa93f0eb578d23995850d61f7d61c55c1" title="Expands to "0".">FALSE</a>);
<a name="l01304"></a>01304 <span class="preprocessor">#endif</span>
<a name="l01305"></a>01305 <span class="preprocessor"></span>
<a name="l01306"></a>01306 pid = fork ();
<a name="l01307"></a>01307
<a name="l01308"></a>01308 <span class="keywordflow">if</span> (pid < 0)
<a name="l01309"></a>01309 {
<a name="l01310"></a>01310 <a class="code" href="group__DBusErrors.html#ga89d2ad4bde21f9e0057fac07a79885e3" title="Assigns an error name and message to a DBusError.">dbus_set_error</a> (error,
<a name="l01311"></a>01311 <a class="code" href="group__DBusProtocol.html#gafe69e1ac207a66cc86d2880fd3ca62af" title="While starting a new process, the fork() call failed.">DBUS_ERROR_SPAWN_FORK_FAILED</a>,
<a name="l01312"></a>01312 <span class="stringliteral">"Failed to fork (%s)"</span>,
<a name="l01313"></a>01313 _dbus_strerror (errno));
<a name="l01314"></a>01314 <span class="keywordflow">goto</span> cleanup_and_fail;
<a name="l01315"></a>01315 }
<a name="l01316"></a>01316 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (pid == 0)
<a name="l01317"></a>01317 {
<a name="l01318"></a>01318 <span class="comment">/* Immediate child, this is the babysitter process. */</span>
<a name="l01319"></a>01319 <span class="keywordtype">int</span> grandchild_pid;
<a name="l01320"></a>01320
<a name="l01321"></a>01321 <span class="comment">/* Be sure we crash if the parent exits</span>
<a name="l01322"></a>01322 <span class="comment"> * and we write to the err_report_pipe</span>
<a name="l01323"></a>01323 <span class="comment"> */</span>
<a name="l01324"></a>01324 signal (SIGPIPE, SIG_DFL);
<a name="l01325"></a>01325
<a name="l01326"></a>01326 <span class="comment">/* Close the parent's end of the pipes. */</span>
<a name="l01327"></a>01327 close_and_invalidate (&child_err_report_pipe[READ_END]);
<a name="l01328"></a>01328 close_and_invalidate (&babysitter_pipe[0]);
<a name="l01329"></a>01329
<a name="l01330"></a>01330 <span class="comment">/* Create the child that will exec () */</span>
<a name="l01331"></a>01331 grandchild_pid = fork ();
<a name="l01332"></a>01332
<a name="l01333"></a>01333 <span class="keywordflow">if</span> (grandchild_pid < 0)
<a name="l01334"></a>01334 {
<a name="l01335"></a>01335 write_err_and_exit (babysitter_pipe[1],
<a name="l01336"></a>01336 CHILD_FORK_FAILED);
<a name="l01337"></a>01337 _dbus_assert_not_reached (<span class="stringliteral">"Got to code after write_err_and_exit()"</span>);
<a name="l01338"></a>01338 }
<a name="l01339"></a>01339 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (grandchild_pid == 0)
<a name="l01340"></a>01340 {
<a name="l01341"></a>01341 <span class="comment">/* Go back to ignoring SIGPIPE, since it's evil</span>
<a name="l01342"></a>01342 <span class="comment"> */</span>
<a name="l01343"></a>01343 signal (SIGPIPE, SIG_IGN);
<a name="l01344"></a>01344
<a name="l01345"></a>01345 close_and_invalidate (&babysitter_pipe[1]);
<a name="l01346"></a>01346 <span class="preprocessor">#ifdef HAVE_SYSTEMD</span>
<a name="l01347"></a>01347 <span class="preprocessor"></span> <span class="comment">/* log to systemd journal if possible */</span>
<a name="l01348"></a>01348 <span class="keywordflow">if</span> (fd_out >= 0)
<a name="l01349"></a>01349 dup2 (fd_out, STDOUT_FILENO);
<a name="l01350"></a>01350 <span class="keywordflow">if</span> (fd_err >= 0)
<a name="l01351"></a>01351 dup2 (fd_err, STDERR_FILENO);
<a name="l01352"></a>01352 close_and_invalidate (&fd_out);
<a name="l01353"></a>01353 close_and_invalidate (&fd_err);
<a name="l01354"></a>01354 <span class="preprocessor">#endif</span>
<a name="l01355"></a>01355 <span class="preprocessor"></span> do_exec (child_err_report_pipe[<a class="code" href="group__DBusInternalsUtils.html#ga2efd706d915e621e5e18b3f0803c4ed2" title="Helps remember which end of the pipe is which.">WRITE_END</a>],
<a name="l01356"></a>01356 argv,
<a name="l01357"></a>01357 env,
<a name="l01358"></a>01358 child_setup, user_data);
<a name="l01359"></a>01359 _dbus_assert_not_reached (<span class="stringliteral">"Got to code after exec() - should have exited on error"</span>);
<a name="l01360"></a>01360 }
<a name="l01361"></a>01361 <span class="keywordflow">else</span>
<a name="l01362"></a>01362 {
<a name="l01363"></a>01363 close_and_invalidate (&child_err_report_pipe[<a class="code" href="group__DBusInternalsUtils.html#ga2efd706d915e621e5e18b3f0803c4ed2" title="Helps remember which end of the pipe is which.">WRITE_END</a>]);
<a name="l01364"></a>01364 <span class="preprocessor">#ifdef HAVE_SYSTEMD</span>
<a name="l01365"></a>01365 <span class="preprocessor"></span> close_and_invalidate (&fd_out);
<a name="l01366"></a>01366 close_and_invalidate (&fd_err);
<a name="l01367"></a>01367 <span class="preprocessor">#endif</span>
<a name="l01368"></a>01368 <span class="preprocessor"></span> babysit (grandchild_pid, babysitter_pipe[1]);
<a name="l01369"></a>01369 _dbus_assert_not_reached (<span class="stringliteral">"Got to code after babysit()"</span>);
<a name="l01370"></a>01370 }
<a name="l01371"></a>01371 }
<a name="l01372"></a>01372 <span class="keywordflow">else</span>
<a name="l01373"></a>01373 {
<a name="l01374"></a>01374 <span class="comment">/* Close the uncared-about ends of the pipes */</span>
<a name="l01375"></a>01375 close_and_invalidate (&child_err_report_pipe[<a class="code" href="group__DBusInternalsUtils.html#ga2efd706d915e621e5e18b3f0803c4ed2" title="Helps remember which end of the pipe is which.">WRITE_END</a>]);
<a name="l01376"></a>01376 close_and_invalidate (&babysitter_pipe[1]);
<a name="l01377"></a>01377 <span class="preprocessor">#ifdef HAVE_SYSTEMD</span>
<a name="l01378"></a>01378 <span class="preprocessor"></span> close_and_invalidate (&fd_out);
<a name="l01379"></a>01379 close_and_invalidate (&fd_err);
<a name="l01380"></a>01380 <span class="preprocessor">#endif</span>
<a name="l01381"></a>01381 <span class="preprocessor"></span>
<a name="l01382"></a>01382 sitter-><a class="code" href="structDBusBabysitter.html#a9b5fa1cf7463e6e88308b85788e232a1" title="Connection to the babysitter process.">socket_to_babysitter</a> = babysitter_pipe[0];
<a name="l01383"></a>01383 babysitter_pipe[0] = -1;
<a name="l01384"></a>01384
<a name="l01385"></a>01385 sitter-><a class="code" href="structDBusBabysitter.html#abc42ea27fa4ee1e4f04819364e0a9bde" title="Connection to the process that does the exec()">error_pipe_from_child</a> = child_err_report_pipe[<a class="code" href="group__DBusInternalsUtils.html#ga2469c53816dc077f9deefb187ffcabf3" title="Helps remember which end of the pipe is which.">READ_END</a>];
<a name="l01386"></a>01386 child_err_report_pipe[<a class="code" href="group__DBusInternalsUtils.html#ga2469c53816dc077f9deefb187ffcabf3" title="Helps remember which end of the pipe is which.">READ_END</a>] = -1;
<a name="l01387"></a>01387
<a name="l01388"></a>01388 sitter-><a class="code" href="structDBusBabysitter.html#aa783f733db30b4587f08ee906612fa6c" title="PID Of the babysitter.">sitter_pid</a> = pid;
<a name="l01389"></a>01389
<a name="l01390"></a>01390 <span class="keywordflow">if</span> (sitter_p != <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>)
<a name="l01391"></a>01391 *sitter_p = sitter;
<a name="l01392"></a>01392 <span class="keywordflow">else</span>
<a name="l01393"></a>01393 <a class="code" href="group__DBusInternalsUtils.html#ga3205e9f8672271794aeb9d451e2fcc4a" title="Decrement the reference count on the babysitter object.">_dbus_babysitter_unref</a> (sitter);
<a name="l01394"></a>01394
<a name="l01395"></a>01395 <a class="code" href="group__DBusMemory.html#gac200b2dbc8b3f6ecac4d42426fb97b40" title="Frees a NULL-terminated array of strings.">dbus_free_string_array</a> (env);
<a name="l01396"></a>01396
<a name="l01397"></a>01397 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
<a name="l01398"></a>01398
<a name="l01399"></a>01399 <span class="keywordflow">return</span> <a class="code" href="group__DBusMacros.html#gaa8cecfc5c5c054d2875c03e77b7be15d" title="Expands to "1".">TRUE</a>;
<a name="l01400"></a>01400 }
<a name="l01401"></a>01401
<a name="l01402"></a>01402 cleanup_and_fail:
<a name="l01403"></a>01403
<a name="l01404"></a>01404 _DBUS_ASSERT_ERROR_IS_SET (error);
<a name="l01405"></a>01405
<a name="l01406"></a>01406 close_and_invalidate (&child_err_report_pipe[READ_END]);
<a name="l01407"></a>01407 close_and_invalidate (&child_err_report_pipe[<a class="code" href="group__DBusInternalsUtils.html#ga2efd706d915e621e5e18b3f0803c4ed2" title="Helps remember which end of the pipe is which.">WRITE_END</a>]);
<a name="l01408"></a>01408 close_and_invalidate (&babysitter_pipe[0]);
<a name="l01409"></a>01409 close_and_invalidate (&babysitter_pipe[1]);
<a name="l01410"></a>01410 <span class="preprocessor">#ifdef HAVE_SYSTEMD</span>
<a name="l01411"></a>01411 <span class="preprocessor"></span> close_and_invalidate (&fd_out);
<a name="l01412"></a>01412 close_and_invalidate (&fd_err);
<a name="l01413"></a>01413 <span class="preprocessor">#endif</span>
<a name="l01414"></a>01414 <span class="preprocessor"></span>
<a name="l01415"></a>01415 <span class="keywordflow">if</span> (sitter != <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>)
<a name="l01416"></a>01416 <a class="code" href="group__DBusInternalsUtils.html#ga3205e9f8672271794aeb9d451e2fcc4a" title="Decrement the reference count on the babysitter object.">_dbus_babysitter_unref</a> (sitter);
<a name="l01417"></a>01417
<a name="l01418"></a>01418 <span class="keywordflow">return</span> <a class="code" href="group__DBusMacros.html#gaa93f0eb578d23995850d61f7d61c55c1" title="Expands to "0".">FALSE</a>;
<a name="l01419"></a>01419 }
<a name="l01420"></a>01420
<a name="l01421"></a>01421 <span class="keywordtype">void</span>
<a name="l01422"></a>01422 _dbus_babysitter_set_result_function (<a class="code" href="structDBusBabysitter.html" title="Babysitter implementation details.">DBusBabysitter</a> *sitter,
<a name="l01423"></a>01423 DBusBabysitterFinishedFunc finished,
<a name="l01424"></a>01424 <span class="keywordtype">void</span> *user_data)
<a name="l01425"></a>01425 {
<a name="l01426"></a>01426 sitter->finished_cb = finished;
<a name="l01427"></a>01427 sitter->finished_data = user_data;
<a name="l01428"></a>01428 }
<a name="l01429"></a>01429
<a name="l01432"></a>01432 <span class="preprocessor">#ifdef DBUS_ENABLE_EMBEDDED_TESTS</span>
<a name="l01433"></a>01433 <span class="preprocessor"></span>
<a name="l01434"></a>01434 <span class="keyword">static</span> <span class="keywordtype">char</span> *
<a name="l01435"></a>01435 get_test_exec (<span class="keyword">const</span> <span class="keywordtype">char</span> *exe,
<a name="l01436"></a>01436 <a class="code" href="structDBusString.html">DBusString</a> *scratch_space)
<a name="l01437"></a>01437 {
<a name="l01438"></a>01438 <span class="keyword">const</span> <span class="keywordtype">char</span> *dbus_test_exec;
<a name="l01439"></a>01439
<a name="l01440"></a>01440 dbus_test_exec = <a class="code" href="group__DBusSysdeps.html#gab846071a4de54cb7e518654f9375313a" title="Wrapper for getenv().">_dbus_getenv</a> (<span class="stringliteral">"DBUS_TEST_EXEC"</span>);
<a name="l01441"></a>01441
<a name="l01442"></a>01442 <span class="keywordflow">if</span> (dbus_test_exec == <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>)
<a name="l01443"></a>01443 dbus_test_exec = DBUS_TEST_EXEC;
<a name="l01444"></a>01444
<a name="l01445"></a>01445 <span class="keywordflow">if</span> (!<a class="code" href="group__DBusString.html#ga348252317f7bb8ac43529972945830ae" title="Initializes a string.">_dbus_string_init</a> (scratch_space))
<a name="l01446"></a>01446 <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="l01447"></a>01447
<a name="l01448"></a>01448 <span class="keywordflow">if</span> (!<a class="code" href="group__DBusString.html#gab0078cf7e0e5bd784ec6d6e0cc3923a2" title="Appends a printf-style formatted string to the DBusString.">_dbus_string_append_printf</a> (scratch_space, <span class="stringliteral">"%s/%s%s"</span>,
<a name="l01449"></a>01449 dbus_test_exec, exe, DBUS_EXEEXT))
<a name="l01450"></a>01450 {
<a name="l01451"></a>01451 <a class="code" href="group__DBusString.html#ga781ca91acda49a834dce7d0ed0eef212" title="Frees a string created by _dbus_string_init().">_dbus_string_free</a> (scratch_space);
<a name="l01452"></a>01452 <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="l01453"></a>01453 }
<a name="l01454"></a>01454
<a name="l01455"></a>01455 <span class="keywordflow">return</span> <a class="code" href="group__DBusString.html#gaa9b5aa08d313048df72aa12bb4dc0cda" title="Gets the raw character buffer from the string.">_dbus_string_get_data</a> (scratch_space);
<a name="l01456"></a>01456 }
<a name="l01457"></a>01457
<a name="l01458"></a>01458 <span class="keyword">static</span> <span class="keywordtype">void</span>
<a name="l01459"></a>01459 _dbus_babysitter_block_for_child_exit (<a class="code" href="structDBusBabysitter.html" title="Babysitter implementation details.">DBusBabysitter</a> *sitter)
<a name="l01460"></a>01460 {
<a name="l01461"></a>01461 <span class="keywordflow">while</span> (<a class="code" href="group__DBusInternalsUtils.html#gaf3ce8172242a1766bdd5cfe4b0a05d1f" title="Macro returns TRUE if the babysitter still has live sockets open to the babysitter child or the grand...">LIVE_CHILDREN</a> (sitter))
<a name="l01462"></a>01462 babysitter_iteration (sitter, <a class="code" href="group__DBusMacros.html#gaa8cecfc5c5c054d2875c03e77b7be15d" title="Expands to "1".">TRUE</a>);
<a name="l01463"></a>01463 }
<a name="l01464"></a>01464
<a name="l01465"></a>01465 <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>
<a name="l01466"></a>01466 check_spawn_nonexistent (<span class="keywordtype">void</span> *data)
<a name="l01467"></a>01467 {
<a name="l01468"></a>01468 <span class="keywordtype">char</span> *argv[4] = { <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>, <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>, <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>, NULL };
<a name="l01469"></a>01469 <a class="code" href="structDBusBabysitter.html" title="Babysitter implementation details.">DBusBabysitter</a> *sitter = <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>;
<a name="l01470"></a>01470 <a class="code" href="structDBusError.html" title="Object representing an exception.">DBusError</a> error = <a class="code" href="group__DBusErrorInternals.html#ga961cc70e3891282a65205c4c8418d88e" title="Expands to a suitable initializer for a DBusError on the stack.">DBUS_ERROR_INIT</a>;
<a name="l01471"></a>01471
<a name="l01472"></a>01472 <span class="comment">/*** Test launching nonexistent binary */</span>
<a name="l01473"></a>01473
<a name="l01474"></a>01474 argv[0] = <span class="stringliteral">"/this/does/not/exist/32542sdgafgafdg"</span>;
<a name="l01475"></a>01475 <span class="keywordflow">if</span> (<a class="code" href="group__DBusInternalsUtils.html#gaed0b5af565252185dedf99df5da8efc5" title="Spawns a new process.">_dbus_spawn_async_with_babysitter</a> (&sitter, <span class="stringliteral">"spawn_nonexistent"</span>, argv,
<a name="l01476"></a>01476 <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>, <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>, <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>,
<a name="l01477"></a>01477 &error))
<a name="l01478"></a>01478 {
<a name="l01479"></a>01479 _dbus_babysitter_block_for_child_exit (sitter);
<a name="l01480"></a>01480 <a class="code" href="group__DBusInternalsUtils.html#ga9c6f92a67e41f08d8eb254e294fd0378" title="Sets the DBusError with an explanation of why the spawned child process exited (on a signal...">_dbus_babysitter_set_child_exit_error</a> (sitter, &error);
<a name="l01481"></a>01481 }
<a name="l01482"></a>01482
<a name="l01483"></a>01483 <span class="keywordflow">if</span> (sitter)
<a name="l01484"></a>01484 <a class="code" href="group__DBusInternalsUtils.html#ga3205e9f8672271794aeb9d451e2fcc4a" title="Decrement the reference count on the babysitter object.">_dbus_babysitter_unref</a> (sitter);
<a name="l01485"></a>01485
<a name="l01486"></a>01486 <span class="keywordflow">if</span> (!<a class="code" href="group__DBusErrors.html#gab0ed62e9fc2685897eb2d41467c89405" title="Checks whether an error occurred (the error is set).">dbus_error_is_set</a> (&error))
<a name="l01487"></a>01487 {
<a name="l01488"></a>01488 <a class="code" href="group__DBusInternalsUtils.html#gabea2c16d6d3fe7c4eb5b9496fc877f84" title="Prints a warning message to stderr.">_dbus_warn</a> (<span class="stringliteral">"Did not get an error launching nonexistent executable\n"</span>);
<a name="l01489"></a>01489 <span class="keywordflow">return</span> <a class="code" href="group__DBusMacros.html#gaa93f0eb578d23995850d61f7d61c55c1" title="Expands to "0".">FALSE</a>;
<a name="l01490"></a>01490 }
<a name="l01491"></a>01491
<a name="l01492"></a>01492 <span class="keywordflow">if</span> (!(<a class="code" href="group__DBusErrors.html#ga48515c580199514026542fe053ef1887" title="Checks whether the error is set and has the given name.">dbus_error_has_name</a> (&error, <a class="code" href="group__DBusProtocol.html#gac32eaf0b92f798307853cd4fe0cf11c2" title="There was not enough memory to complete an operation.">DBUS_ERROR_NO_MEMORY</a>) ||
<a name="l01493"></a>01493 <a class="code" href="group__DBusErrors.html#ga48515c580199514026542fe053ef1887" title="Checks whether the error is set and has the given name.">dbus_error_has_name</a> (&error, <a class="code" href="group__DBusProtocol.html#gac04bc3bebee1674e93ef96aaa2b34b40" title="While starting a new process, the exec() call failed.">DBUS_ERROR_SPAWN_EXEC_FAILED</a>)))
<a name="l01494"></a>01494 {
<a name="l01495"></a>01495 <a class="code" href="group__DBusInternalsUtils.html#gabea2c16d6d3fe7c4eb5b9496fc877f84" title="Prints a warning message to stderr.">_dbus_warn</a> (<span class="stringliteral">"Not expecting error when launching nonexistent executable: %s: %s\n"</span>,
<a name="l01496"></a>01496 error.<a class="code" href="structDBusError.html#a09a9614ff07fdf3ef163b232ff934581" title="public error name field">name</a>, error.<a class="code" href="structDBusError.html#afb559175326de5b6b340e26204e92d72" title="public error message field">message</a>);
<a name="l01497"></a>01497 <a class="code" href="group__DBusErrors.html#gaac6c14ead14829ee4e090f39de6a7568" title="Frees an error that's been set (or just initialized), then reinitializes the error as in dbus_error_i...">dbus_error_free</a> (&error);
<a name="l01498"></a>01498 <span class="keywordflow">return</span> <a class="code" href="group__DBusMacros.html#gaa93f0eb578d23995850d61f7d61c55c1" title="Expands to "0".">FALSE</a>;
<a name="l01499"></a>01499 }
<a name="l01500"></a>01500
<a name="l01501"></a>01501 <a class="code" href="group__DBusErrors.html#gaac6c14ead14829ee4e090f39de6a7568" title="Frees an error that's been set (or just initialized), then reinitializes the error as in dbus_error_i...">dbus_error_free</a> (&error);
<a name="l01502"></a>01502
<a name="l01503"></a>01503 <span class="keywordflow">return</span> <a class="code" href="group__DBusMacros.html#gaa8cecfc5c5c054d2875c03e77b7be15d" title="Expands to "1".">TRUE</a>;
<a name="l01504"></a>01504 }
<a name="l01505"></a>01505
<a name="l01506"></a>01506 <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>
<a name="l01507"></a>01507 check_spawn_segfault (<span class="keywordtype">void</span> *data)
<a name="l01508"></a>01508 {
<a name="l01509"></a>01509 <span class="keywordtype">char</span> *argv[4] = { <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>, <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>, <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>, NULL };
<a name="l01510"></a>01510 <a class="code" href="structDBusBabysitter.html" title="Babysitter implementation details.">DBusBabysitter</a> *sitter = <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>;
<a name="l01511"></a>01511 <a class="code" href="structDBusError.html" title="Object representing an exception.">DBusError</a> error = <a class="code" href="group__DBusErrorInternals.html#ga961cc70e3891282a65205c4c8418d88e" title="Expands to a suitable initializer for a DBusError on the stack.">DBUS_ERROR_INIT</a>;
<a name="l01512"></a>01512 <a class="code" href="structDBusString.html">DBusString</a> argv0;
<a name="l01513"></a>01513
<a name="l01514"></a>01514 <span class="comment">/*** Test launching segfault binary */</span>
<a name="l01515"></a>01515
<a name="l01516"></a>01516 argv[0] = get_test_exec (<span class="stringliteral">"test-segfault"</span>, &argv0);
<a name="l01517"></a>01517
<a name="l01518"></a>01518 <span class="keywordflow">if</span> (argv[0] == <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>)
<a name="l01519"></a>01519 {
<a name="l01520"></a>01520 <span class="comment">/* OOM was simulated, never mind */</span>
<a name="l01521"></a>01521 <span class="keywordflow">return</span> <a class="code" href="group__DBusMacros.html#gaa8cecfc5c5c054d2875c03e77b7be15d" title="Expands to "1".">TRUE</a>;
<a name="l01522"></a>01522 }
<a name="l01523"></a>01523
<a name="l01524"></a>01524 <span class="keywordflow">if</span> (<a class="code" href="group__DBusInternalsUtils.html#gaed0b5af565252185dedf99df5da8efc5" title="Spawns a new process.">_dbus_spawn_async_with_babysitter</a> (&sitter, <span class="stringliteral">"spawn_segfault"</span>, argv,
<a name="l01525"></a>01525 <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>, <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>, <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>,
<a name="l01526"></a>01526 &error))
<a name="l01527"></a>01527 {
<a name="l01528"></a>01528 _dbus_babysitter_block_for_child_exit (sitter);
<a name="l01529"></a>01529 <a class="code" href="group__DBusInternalsUtils.html#ga9c6f92a67e41f08d8eb254e294fd0378" title="Sets the DBusError with an explanation of why the spawned child process exited (on a signal...">_dbus_babysitter_set_child_exit_error</a> (sitter, &error);
<a name="l01530"></a>01530 }
<a name="l01531"></a>01531
<a name="l01532"></a>01532 <a class="code" href="group__DBusString.html#ga781ca91acda49a834dce7d0ed0eef212" title="Frees a string created by _dbus_string_init().">_dbus_string_free</a> (&argv0);
<a name="l01533"></a>01533
<a name="l01534"></a>01534 <span class="keywordflow">if</span> (sitter)
<a name="l01535"></a>01535 <a class="code" href="group__DBusInternalsUtils.html#ga3205e9f8672271794aeb9d451e2fcc4a" title="Decrement the reference count on the babysitter object.">_dbus_babysitter_unref</a> (sitter);
<a name="l01536"></a>01536
<a name="l01537"></a>01537 <span class="keywordflow">if</span> (!<a class="code" href="group__DBusErrors.html#gab0ed62e9fc2685897eb2d41467c89405" title="Checks whether an error occurred (the error is set).">dbus_error_is_set</a> (&error))
<a name="l01538"></a>01538 {
<a name="l01539"></a>01539 <a class="code" href="group__DBusInternalsUtils.html#gabea2c16d6d3fe7c4eb5b9496fc877f84" title="Prints a warning message to stderr.">_dbus_warn</a> (<span class="stringliteral">"Did not get an error launching segfaulting binary\n"</span>);
<a name="l01540"></a>01540 <span class="keywordflow">return</span> <a class="code" href="group__DBusMacros.html#gaa93f0eb578d23995850d61f7d61c55c1" title="Expands to "0".">FALSE</a>;
<a name="l01541"></a>01541 }
<a name="l01542"></a>01542
<a name="l01543"></a>01543 <span class="keywordflow">if</span> (!(<a class="code" href="group__DBusErrors.html#ga48515c580199514026542fe053ef1887" title="Checks whether the error is set and has the given name.">dbus_error_has_name</a> (&error, <a class="code" href="group__DBusProtocol.html#gac32eaf0b92f798307853cd4fe0cf11c2" title="There was not enough memory to complete an operation.">DBUS_ERROR_NO_MEMORY</a>) ||
<a name="l01544"></a>01544 <a class="code" href="group__DBusErrors.html#ga48515c580199514026542fe053ef1887" title="Checks whether the error is set and has the given name.">dbus_error_has_name</a> (&error, <a class="code" href="group__DBusProtocol.html#ga8404cd7fd5f0d62a63e26783bdf572ae" title="While starting a new process, the child exited on a signal.">DBUS_ERROR_SPAWN_CHILD_SIGNALED</a>)))
<a name="l01545"></a>01545 {
<a name="l01546"></a>01546 <a class="code" href="group__DBusInternalsUtils.html#gabea2c16d6d3fe7c4eb5b9496fc877f84" title="Prints a warning message to stderr.">_dbus_warn</a> (<span class="stringliteral">"Not expecting error when launching segfaulting executable: %s: %s\n"</span>,
<a name="l01547"></a>01547 error.<a class="code" href="structDBusError.html#a09a9614ff07fdf3ef163b232ff934581" title="public error name field">name</a>, error.<a class="code" href="structDBusError.html#afb559175326de5b6b340e26204e92d72" title="public error message field">message</a>);
<a name="l01548"></a>01548 <a class="code" href="group__DBusErrors.html#gaac6c14ead14829ee4e090f39de6a7568" title="Frees an error that's been set (or just initialized), then reinitializes the error as in dbus_error_i...">dbus_error_free</a> (&error);
<a name="l01549"></a>01549 <span class="keywordflow">return</span> <a class="code" href="group__DBusMacros.html#gaa93f0eb578d23995850d61f7d61c55c1" title="Expands to "0".">FALSE</a>;
<a name="l01550"></a>01550 }
<a name="l01551"></a>01551
<a name="l01552"></a>01552 <a class="code" href="group__DBusErrors.html#gaac6c14ead14829ee4e090f39de6a7568" title="Frees an error that's been set (or just initialized), then reinitializes the error as in dbus_error_i...">dbus_error_free</a> (&error);
<a name="l01553"></a>01553
<a name="l01554"></a>01554 <span class="keywordflow">return</span> <a class="code" href="group__DBusMacros.html#gaa8cecfc5c5c054d2875c03e77b7be15d" title="Expands to "1".">TRUE</a>;
<a name="l01555"></a>01555 }
<a name="l01556"></a>01556
<a name="l01557"></a>01557 <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>
<a name="l01558"></a>01558 check_spawn_exit (<span class="keywordtype">void</span> *data)
<a name="l01559"></a>01559 {
<a name="l01560"></a>01560 <span class="keywordtype">char</span> *argv[4] = { <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>, <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>, <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>, NULL };
<a name="l01561"></a>01561 <a class="code" href="structDBusBabysitter.html" title="Babysitter implementation details.">DBusBabysitter</a> *sitter = <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>;
<a name="l01562"></a>01562 <a class="code" href="structDBusError.html" title="Object representing an exception.">DBusError</a> error = <a class="code" href="group__DBusErrorInternals.html#ga961cc70e3891282a65205c4c8418d88e" title="Expands to a suitable initializer for a DBusError on the stack.">DBUS_ERROR_INIT</a>;
<a name="l01563"></a>01563 <a class="code" href="structDBusString.html">DBusString</a> argv0;
<a name="l01564"></a>01564
<a name="l01565"></a>01565 <span class="comment">/*** Test launching exit failure binary */</span>
<a name="l01566"></a>01566
<a name="l01567"></a>01567 argv[0] = get_test_exec (<span class="stringliteral">"test-exit"</span>, &argv0);
<a name="l01568"></a>01568
<a name="l01569"></a>01569 <span class="keywordflow">if</span> (argv[0] == <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>)
<a name="l01570"></a>01570 {
<a name="l01571"></a>01571 <span class="comment">/* OOM was simulated, never mind */</span>
<a name="l01572"></a>01572 <span class="keywordflow">return</span> <a class="code" href="group__DBusMacros.html#gaa8cecfc5c5c054d2875c03e77b7be15d" title="Expands to "1".">TRUE</a>;
<a name="l01573"></a>01573 }
<a name="l01574"></a>01574
<a name="l01575"></a>01575 <span class="keywordflow">if</span> (<a class="code" href="group__DBusInternalsUtils.html#gaed0b5af565252185dedf99df5da8efc5" title="Spawns a new process.">_dbus_spawn_async_with_babysitter</a> (&sitter, <span class="stringliteral">"spawn_exit"</span>, argv,
<a name="l01576"></a>01576 <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>, <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>, <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>,
<a name="l01577"></a>01577 &error))
<a name="l01578"></a>01578 {
<a name="l01579"></a>01579 _dbus_babysitter_block_for_child_exit (sitter);
<a name="l01580"></a>01580 <a class="code" href="group__DBusInternalsUtils.html#ga9c6f92a67e41f08d8eb254e294fd0378" title="Sets the DBusError with an explanation of why the spawned child process exited (on a signal...">_dbus_babysitter_set_child_exit_error</a> (sitter, &error);
<a name="l01581"></a>01581 }
<a name="l01582"></a>01582
<a name="l01583"></a>01583 <a class="code" href="group__DBusString.html#ga781ca91acda49a834dce7d0ed0eef212" title="Frees a string created by _dbus_string_init().">_dbus_string_free</a> (&argv0);
<a name="l01584"></a>01584
<a name="l01585"></a>01585 <span class="keywordflow">if</span> (sitter)
<a name="l01586"></a>01586 <a class="code" href="group__DBusInternalsUtils.html#ga3205e9f8672271794aeb9d451e2fcc4a" title="Decrement the reference count on the babysitter object.">_dbus_babysitter_unref</a> (sitter);
<a name="l01587"></a>01587
<a name="l01588"></a>01588 <span class="keywordflow">if</span> (!<a class="code" href="group__DBusErrors.html#gab0ed62e9fc2685897eb2d41467c89405" title="Checks whether an error occurred (the error is set).">dbus_error_is_set</a> (&error))
<a name="l01589"></a>01589 {
<a name="l01590"></a>01590 <a class="code" href="group__DBusInternalsUtils.html#gabea2c16d6d3fe7c4eb5b9496fc877f84" title="Prints a warning message to stderr.">_dbus_warn</a> (<span class="stringliteral">"Did not get an error launching binary that exited with failure code\n"</span>);
<a name="l01591"></a>01591 <span class="keywordflow">return</span> <a class="code" href="group__DBusMacros.html#gaa93f0eb578d23995850d61f7d61c55c1" title="Expands to "0".">FALSE</a>;
<a name="l01592"></a>01592 }
<a name="l01593"></a>01593
<a name="l01594"></a>01594 <span class="keywordflow">if</span> (!(<a class="code" href="group__DBusErrors.html#ga48515c580199514026542fe053ef1887" title="Checks whether the error is set and has the given name.">dbus_error_has_name</a> (&error, <a class="code" href="group__DBusProtocol.html#gac32eaf0b92f798307853cd4fe0cf11c2" title="There was not enough memory to complete an operation.">DBUS_ERROR_NO_MEMORY</a>) ||
<a name="l01595"></a>01595 <a class="code" href="group__DBusErrors.html#ga48515c580199514026542fe053ef1887" title="Checks whether the error is set and has the given name.">dbus_error_has_name</a> (&error, <a class="code" href="group__DBusProtocol.html#ga6cd00ac22b189360a7f0ce2f2b97975b" title="While starting a new process, the child exited with a status code.">DBUS_ERROR_SPAWN_CHILD_EXITED</a>)))
<a name="l01596"></a>01596 {
<a name="l01597"></a>01597 <a class="code" href="group__DBusInternalsUtils.html#gabea2c16d6d3fe7c4eb5b9496fc877f84" title="Prints a warning message to stderr.">_dbus_warn</a> (<span class="stringliteral">"Not expecting error when launching exiting executable: %s: %s\n"</span>,
<a name="l01598"></a>01598 error.<a class="code" href="structDBusError.html#a09a9614ff07fdf3ef163b232ff934581" title="public error name field">name</a>, error.<a class="code" href="structDBusError.html#afb559175326de5b6b340e26204e92d72" title="public error message field">message</a>);
<a name="l01599"></a>01599 <a class="code" href="group__DBusErrors.html#gaac6c14ead14829ee4e090f39de6a7568" title="Frees an error that's been set (or just initialized), then reinitializes the error as in dbus_error_i...">dbus_error_free</a> (&error);
<a name="l01600"></a>01600 <span class="keywordflow">return</span> <a class="code" href="group__DBusMacros.html#gaa93f0eb578d23995850d61f7d61c55c1" title="Expands to "0".">FALSE</a>;
<a name="l01601"></a>01601 }
<a name="l01602"></a>01602
<a name="l01603"></a>01603 <a class="code" href="group__DBusErrors.html#gaac6c14ead14829ee4e090f39de6a7568" title="Frees an error that's been set (or just initialized), then reinitializes the error as in dbus_error_i...">dbus_error_free</a> (&error);
<a name="l01604"></a>01604
<a name="l01605"></a>01605 <span class="keywordflow">return</span> <a class="code" href="group__DBusMacros.html#gaa8cecfc5c5c054d2875c03e77b7be15d" title="Expands to "1".">TRUE</a>;
<a name="l01606"></a>01606 }
<a name="l01607"></a>01607
<a name="l01608"></a>01608 <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>
<a name="l01609"></a>01609 check_spawn_and_kill (<span class="keywordtype">void</span> *data)
<a name="l01610"></a>01610 {
<a name="l01611"></a>01611 <span class="keywordtype">char</span> *argv[4] = { <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>, <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>, <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>, NULL };
<a name="l01612"></a>01612 <a class="code" href="structDBusBabysitter.html" title="Babysitter implementation details.">DBusBabysitter</a> *sitter = <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>;
<a name="l01613"></a>01613 <a class="code" href="structDBusError.html" title="Object representing an exception.">DBusError</a> error = <a class="code" href="group__DBusErrorInternals.html#ga961cc70e3891282a65205c4c8418d88e" title="Expands to a suitable initializer for a DBusError on the stack.">DBUS_ERROR_INIT</a>;
<a name="l01614"></a>01614 <a class="code" href="structDBusString.html">DBusString</a> argv0;
<a name="l01615"></a>01615
<a name="l01616"></a>01616 <span class="comment">/*** Test launching sleeping binary then killing it */</span>
<a name="l01617"></a>01617
<a name="l01618"></a>01618 argv[0] = get_test_exec (<span class="stringliteral">"test-sleep-forever"</span>, &argv0);
<a name="l01619"></a>01619
<a name="l01620"></a>01620 <span class="keywordflow">if</span> (argv[0] == <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>)
<a name="l01621"></a>01621 {
<a name="l01622"></a>01622 <span class="comment">/* OOM was simulated, never mind */</span>
<a name="l01623"></a>01623 <span class="keywordflow">return</span> <a class="code" href="group__DBusMacros.html#gaa8cecfc5c5c054d2875c03e77b7be15d" title="Expands to "1".">TRUE</a>;
<a name="l01624"></a>01624 }
<a name="l01625"></a>01625
<a name="l01626"></a>01626 <span class="keywordflow">if</span> (<a class="code" href="group__DBusInternalsUtils.html#gaed0b5af565252185dedf99df5da8efc5" title="Spawns a new process.">_dbus_spawn_async_with_babysitter</a> (&sitter, <span class="stringliteral">"spawn_and_kill"</span>, argv,
<a name="l01627"></a>01627 <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>, <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>, <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>,
<a name="l01628"></a>01628 &error))
<a name="l01629"></a>01629 {
<a name="l01630"></a>01630 <a class="code" href="group__DBusInternalsUtils.html#gacdc9c49735d6ce8364647c1961aa8d2b" title="Blocks until the babysitter process gives us the PID of the spawned grandchild, then kills the spawne...">_dbus_babysitter_kill_child</a> (sitter);
<a name="l01631"></a>01631
<a name="l01632"></a>01632 _dbus_babysitter_block_for_child_exit (sitter);
<a name="l01633"></a>01633
<a name="l01634"></a>01634 <a class="code" href="group__DBusInternalsUtils.html#ga9c6f92a67e41f08d8eb254e294fd0378" title="Sets the DBusError with an explanation of why the spawned child process exited (on a signal...">_dbus_babysitter_set_child_exit_error</a> (sitter, &error);
<a name="l01635"></a>01635 }
<a name="l01636"></a>01636
<a name="l01637"></a>01637 <a class="code" href="group__DBusString.html#ga781ca91acda49a834dce7d0ed0eef212" title="Frees a string created by _dbus_string_init().">_dbus_string_free</a> (&argv0);
<a name="l01638"></a>01638
<a name="l01639"></a>01639 <span class="keywordflow">if</span> (sitter)
<a name="l01640"></a>01640 <a class="code" href="group__DBusInternalsUtils.html#ga3205e9f8672271794aeb9d451e2fcc4a" title="Decrement the reference count on the babysitter object.">_dbus_babysitter_unref</a> (sitter);
<a name="l01641"></a>01641
<a name="l01642"></a>01642 <span class="keywordflow">if</span> (!<a class="code" href="group__DBusErrors.html#gab0ed62e9fc2685897eb2d41467c89405" title="Checks whether an error occurred (the error is set).">dbus_error_is_set</a> (&error))
<a name="l01643"></a>01643 {
<a name="l01644"></a>01644 <a class="code" href="group__DBusInternalsUtils.html#gabea2c16d6d3fe7c4eb5b9496fc877f84" title="Prints a warning message to stderr.">_dbus_warn</a> (<span class="stringliteral">"Did not get an error after killing spawned binary\n"</span>);
<a name="l01645"></a>01645 <span class="keywordflow">return</span> <a class="code" href="group__DBusMacros.html#gaa93f0eb578d23995850d61f7d61c55c1" title="Expands to "0".">FALSE</a>;
<a name="l01646"></a>01646 }
<a name="l01647"></a>01647
<a name="l01648"></a>01648 <span class="keywordflow">if</span> (!(<a class="code" href="group__DBusErrors.html#ga48515c580199514026542fe053ef1887" title="Checks whether the error is set and has the given name.">dbus_error_has_name</a> (&error, <a class="code" href="group__DBusProtocol.html#gac32eaf0b92f798307853cd4fe0cf11c2" title="There was not enough memory to complete an operation.">DBUS_ERROR_NO_MEMORY</a>) ||
<a name="l01649"></a>01649 <a class="code" href="group__DBusErrors.html#ga48515c580199514026542fe053ef1887" title="Checks whether the error is set and has the given name.">dbus_error_has_name</a> (&error, <a class="code" href="group__DBusProtocol.html#ga8404cd7fd5f0d62a63e26783bdf572ae" title="While starting a new process, the child exited on a signal.">DBUS_ERROR_SPAWN_CHILD_SIGNALED</a>)))
<a name="l01650"></a>01650 {
<a name="l01651"></a>01651 <a class="code" href="group__DBusInternalsUtils.html#gabea2c16d6d3fe7c4eb5b9496fc877f84" title="Prints a warning message to stderr.">_dbus_warn</a> (<span class="stringliteral">"Not expecting error when killing executable: %s: %s\n"</span>,
<a name="l01652"></a>01652 error.<a class="code" href="structDBusError.html#a09a9614ff07fdf3ef163b232ff934581" title="public error name field">name</a>, error.<a class="code" href="structDBusError.html#afb559175326de5b6b340e26204e92d72" title="public error message field">message</a>);
<a name="l01653"></a>01653 <a class="code" href="group__DBusErrors.html#gaac6c14ead14829ee4e090f39de6a7568" title="Frees an error that's been set (or just initialized), then reinitializes the error as in dbus_error_i...">dbus_error_free</a> (&error);
<a name="l01654"></a>01654 <span class="keywordflow">return</span> <a class="code" href="group__DBusMacros.html#gaa93f0eb578d23995850d61f7d61c55c1" title="Expands to "0".">FALSE</a>;
<a name="l01655"></a>01655 }
<a name="l01656"></a>01656
<a name="l01657"></a>01657 <a class="code" href="group__DBusErrors.html#gaac6c14ead14829ee4e090f39de6a7568" title="Frees an error that's been set (or just initialized), then reinitializes the error as in dbus_error_i...">dbus_error_free</a> (&error);
<a name="l01658"></a>01658
<a name="l01659"></a>01659 <span class="keywordflow">return</span> <a class="code" href="group__DBusMacros.html#gaa8cecfc5c5c054d2875c03e77b7be15d" title="Expands to "1".">TRUE</a>;
<a name="l01660"></a>01660 }
<a name="l01661"></a>01661
<a name="l01662"></a>01662 <a class="code" href="group__DBusTypes.html#ga39c9cb0f3a2a8ad6f55cc4855d035349" title="A boolean, valid values are TRUE and FALSE.">dbus_bool_t</a>
<a name="l01663"></a>01663 _dbus_spawn_test (<span class="keyword">const</span> <span class="keywordtype">char</span> *test_data_dir)
<a name="l01664"></a>01664 {
<a name="l01665"></a>01665 <span class="keywordflow">if</span> (!_dbus_test_oom_handling (<span class="stringliteral">"spawn_nonexistent"</span>,
<a name="l01666"></a>01666 check_spawn_nonexistent,
<a name="l01667"></a>01667 <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>))
<a name="l01668"></a>01668 <span class="keywordflow">return</span> <a class="code" href="group__DBusMacros.html#gaa93f0eb578d23995850d61f7d61c55c1" title="Expands to "0".">FALSE</a>;
<a name="l01669"></a>01669
<a name="l01670"></a>01670 <span class="keywordflow">if</span> (!_dbus_test_oom_handling (<span class="stringliteral">"spawn_segfault"</span>,
<a name="l01671"></a>01671 check_spawn_segfault,
<a name="l01672"></a>01672 <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>))
<a name="l01673"></a>01673 <span class="keywordflow">return</span> <a class="code" href="group__DBusMacros.html#gaa93f0eb578d23995850d61f7d61c55c1" title="Expands to "0".">FALSE</a>;
<a name="l01674"></a>01674
<a name="l01675"></a>01675 <span class="keywordflow">if</span> (!_dbus_test_oom_handling (<span class="stringliteral">"spawn_exit"</span>,
<a name="l01676"></a>01676 check_spawn_exit,
<a name="l01677"></a>01677 <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>))
<a name="l01678"></a>01678 <span class="keywordflow">return</span> <a class="code" href="group__DBusMacros.html#gaa93f0eb578d23995850d61f7d61c55c1" title="Expands to "0".">FALSE</a>;
<a name="l01679"></a>01679
<a name="l01680"></a>01680 <span class="keywordflow">if</span> (!_dbus_test_oom_handling (<span class="stringliteral">"spawn_and_kill"</span>,
<a name="l01681"></a>01681 check_spawn_and_kill,
<a name="l01682"></a>01682 <a class="code" href="group__DBusMacros.html#ga070d2ce7b6bb7e5c05602aa8c308d0c4" title="A null pointer, defined appropriately for C or C++.">NULL</a>))
<a name="l01683"></a>01683 <span class="keywordflow">return</span> <a class="code" href="group__DBusMacros.html#gaa93f0eb578d23995850d61f7d61c55c1" title="Expands to "0".">FALSE</a>;
<a name="l01684"></a>01684
<a name="l01685"></a>01685 <span class="keywordflow">return</span> <a class="code" href="group__DBusMacros.html#gaa8cecfc5c5c054d2875c03e77b7be15d" title="Expands to "1".">TRUE</a>;
<a name="l01686"></a>01686 }
<a name="l01687"></a>01687 <span class="preprocessor">#endif</span>
</pre></div></div><!-- contents -->
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