<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<title>Vidalia: ControlConnection.cpp Source File</title>
<link href="tabs.css" rel="stylesheet" type="text/css"/>
<link href="doxygen.css" rel="stylesheet" type="text/css"/>
</head>
<body>
<!-- Generated by Doxygen 1.6.3 -->
<div class="navigation" id="top">
<div class="tabs">
<ul>
<li><a href="index.html"><span>Main Page</span></a></li>
<li><a href="namespaces.html"><span>Namespaces</span></a></li>
<li><a href="annotated.html"><span>Classes</span></a></li>
<li class="current"><a href="files.html"><span>Files</span></a></li>
<li><a href="dirs.html"><span>Directories</span></a></li>
</ul>
</div>
<div class="tabs">
<ul>
<li><a href="files.html"><span>File List</span></a></li>
<li><a href="globals.html"><span>File Members</span></a></li>
</ul>
</div>
<div class="navpath"><a class="el" href="dir_b47abd1aad201a152869566145babb61.html">src</a> » <a class="el" href="dir_67a2ce25601334632bdc5ef4a72c0f17.html">torcontrol</a>
</div>
</div>
<div class="contents">
<h1>ControlConnection.cpp</h1><a href="_control_connection_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span>
<a name="l00002"></a>00002 <span class="comment">** This file is part of Vidalia, and is subject to the license terms in the</span>
<a name="l00003"></a>00003 <span class="comment">** LICENSE file, found in the top level directory of this distribution. If </span>
<a name="l00004"></a>00004 <span class="comment">** you did not receive the LICENSE file with this file, you may obtain it</span>
<a name="l00005"></a>00005 <span class="comment">** from the Vidalia source package distributed by the Vidalia Project at</span>
<a name="l00006"></a>00006 <span class="comment">** http://www.vidalia-project.net/. No part of Vidalia, including this file,</span>
<a name="l00007"></a>00007 <span class="comment">** may be copied, modified, propagated, or distributed except according to</span>
<a name="l00008"></a>00008 <span class="comment">** the terms described in the LICENSE file.</span>
<a name="l00009"></a>00009 <span class="comment">*/</span>
<a name="l00010"></a>00010
<a name="l00011"></a>00011 <span class="comment">/*</span>
<a name="l00012"></a>00012 <span class="comment">** \file ControlConnection.cpp</span>
<a name="l00013"></a>00013 <span class="comment">** \version $Id: ControlConnection.cpp 3735 2009-04-28 20:28:01Z edmanm $</span>
<a name="l00014"></a>00014 <span class="comment">** \brief A connection to Tor's control interface, responsible for sending and</span>
<a name="l00015"></a>00015 <span class="comment">** receiving commands and events</span>
<a name="l00016"></a>00016 <span class="comment">*/</span>
<a name="l00017"></a>00017
<a name="l00018"></a>00018 <span class="preprocessor">#include "<a class="code" href="_control_connection_8h.html">ControlConnection.h</a>"</span>
<a name="l00019"></a>00019 <span class="preprocessor">#include "<a class="code" href="tcglobal_8h.html">tcglobal.h</a>"</span>
<a name="l00020"></a>00020 <span class="preprocessor">#include "<a class="code" href="stringutil_8h.html">stringutil.h</a>"</span>
<a name="l00021"></a>00021
<a name="l00022"></a>00022 <span class="preprocessor">#include <QCoreApplication></span>
<a name="l00023"></a>00023 <span class="preprocessor">#include <QMutexLocker></span>
<a name="l00024"></a>00024 <span class="comment"></span>
<a name="l00025"></a>00025 <span class="comment">/** Maximum number of times we'll try to connect to Tor before giving up.*/</span>
<a name="l00026"></a><a class="code" href="_control_connection_8cpp.html#ab2e7505a14f10095a4d935adc08c677d">00026</a> <span class="preprocessor">#define MAX_CONNECT_ATTEMPTS 5</span>
<a name="l00027"></a>00027 <span class="preprocessor"></span><span class="comment">/** Time to wait between control connection attempts (in milliseconds). */</span>
<a name="l00028"></a><a class="code" href="_control_connection_8cpp.html#a3945faefd22f395a81c4193afcfd3627">00028</a> <span class="preprocessor">#define CONNECT_RETRY_DELAY 2*1000</span>
<a name="l00029"></a>00029 <span class="preprocessor"></span>
<a name="l00030"></a>00030 <span class="comment"></span>
<a name="l00031"></a>00031 <span class="comment">/** Default constructor. */</span>
<a name="l00032"></a><a class="code" href="class_control_connection.html#afd4d3c320a0b3725daeb5ce9ed02edc5">00032</a> <a class="code" href="class_control_connection.html#afd4d3c320a0b3725daeb5ce9ed02edc5">ControlConnection::ControlConnection</a>(<a class="code" href="class_tor_events.html">TorEvents</a> *events)
<a name="l00033"></a>00033 {
<a name="l00034"></a>00034 <a class="code" href="class_control_connection.html#aec45c94f839cf699724de0cf0131cfdc">_events</a> = events;
<a name="l00035"></a>00035 <a class="code" href="class_control_connection.html#a9e88a144a3321f31ebccd51f1aa4ccc2">_status</a> = <a class="code" href="class_control_connection.html#a60fe264cf74ba322bc0fe4693e2e77ada8fca398689e2de1266ae02a7032a5516">Unset</a>;
<a name="l00036"></a>00036 <a class="code" href="class_control_connection.html#a19bab8aff5488d33d9d89f54b413d425">_sock</a> = 0;
<a name="l00037"></a>00037 <a class="code" href="class_control_connection.html#afb1f68bd6b76a157470ea2327ff62563">_sendWaiter</a> = <span class="keyword">new</span> <a class="code" href="class_send_command_event_1_1_send_waiter.html">SendCommandEvent::SendWaiter</a>();
<a name="l00038"></a>00038 }
<a name="l00039"></a>00039 <span class="comment"></span>
<a name="l00040"></a>00040 <span class="comment">/** Destructor. */</span>
<a name="l00041"></a><a class="code" href="class_control_connection.html#a7eaa62d1e9832b206a3154224d8286c7">00041</a> <a class="code" href="class_control_connection.html#a7eaa62d1e9832b206a3154224d8286c7">ControlConnection::~ControlConnection</a>()
<a name="l00042"></a>00042 {
<a name="l00043"></a>00043 <span class="comment">/* Exit the event loop */</span>
<a name="l00044"></a>00044 exit();
<a name="l00045"></a>00045 <span class="comment">/* Wait for the thread to finish */</span>
<a name="l00046"></a>00046 wait();
<a name="l00047"></a>00047 <span class="comment">/* Clean up after the send waiter */</span>
<a name="l00048"></a>00048 <span class="keyword">delete</span> <a class="code" href="class_control_connection.html#afb1f68bd6b76a157470ea2327ff62563">_sendWaiter</a>;
<a name="l00049"></a>00049 }
<a name="l00050"></a>00050 <span class="comment"></span>
<a name="l00051"></a>00051 <span class="comment">/** Connect to the specified Tor control interface. */</span>
<a name="l00052"></a>00052 <span class="keywordtype">void</span>
<a name="l00053"></a><a class="code" href="class_control_connection.html#a08bef3c75868948687a0f33aa02a32b8">00053</a> <a class="code" href="class_control_connection.html#af18111442847fa19e5dbc16d5834f342">ControlConnection::connect</a>(<span class="keyword">const</span> QHostAddress &addr, quint16 port)
<a name="l00054"></a>00054 {
<a name="l00055"></a>00055 <span class="keywordflow">if</span> (isRunning()) {
<a name="l00056"></a>00056 <a class="code" href="namespacetc.html#aa7353218fd7baef0876bbb422ce818af">tc::error</a>(<span class="stringliteral">"Bug: Tried to call ControlConnection::connect() when the "</span>
<a name="l00057"></a>00057 <span class="stringliteral">"control thread is already running."</span>);
<a name="l00058"></a>00058 <span class="keywordflow">return</span>;
<a name="l00059"></a>00059 }
<a name="l00060"></a>00060
<a name="l00061"></a>00061 <span class="comment">/* Save the destination information */</span>
<a name="l00062"></a>00062 <a class="code" href="class_control_connection.html#a89f24cc2722d64f83ac4407d0c4c6ae9">_addr</a> = addr;
<a name="l00063"></a>00063 <a class="code" href="class_control_connection.html#a205fdd450015f8b7d34ae2b7282d4835">_port</a> = port;
<a name="l00064"></a>00064 <a class="code" href="class_control_connection.html#a19bab8aff5488d33d9d89f54b413d425">_sock</a> = 0;
<a name="l00065"></a>00065 <a class="code" href="class_control_connection.html#a237dde266f22e3a1a76abc0137d255a5">_connectAttempt</a> = 0;
<a name="l00066"></a>00066 <a class="code" href="class_control_connection.html#a3ad24531cc04488a33850731c171499d">setStatus</a>(<a class="code" href="class_control_connection.html#a60fe264cf74ba322bc0fe4693e2e77adabd3d25f7cb53a85649ed2e47c19fef97">Connecting</a>);
<a name="l00067"></a>00067
<a name="l00068"></a>00068 <span class="comment">/* Kick off the thread in which the control socket will live */</span>
<a name="l00069"></a>00069 QThread::start();
<a name="l00070"></a>00070 }
<a name="l00071"></a>00071 <span class="comment"></span>
<a name="l00072"></a>00072 <span class="comment">/** Attempt to establish a connection to Tor's control interface. We will try</span>
<a name="l00073"></a>00073 <span class="comment"> * a maximum of MAX_CONNECT_ATTEMPTS, waiting CONNECT_RETRY_DELAY between each</span>
<a name="l00074"></a>00074 <span class="comment"> * attempt, to give slow Tors a chance to finish binding their control port. */</span>
<a name="l00075"></a>00075 <span class="keywordtype">void</span>
<a name="l00076"></a><a class="code" href="class_control_connection.html#af18111442847fa19e5dbc16d5834f342">00076</a> <a class="code" href="class_control_connection.html#af18111442847fa19e5dbc16d5834f342">ControlConnection::connect</a>()
<a name="l00077"></a>00077 {
<a name="l00078"></a>00078 <a class="code" href="class_control_connection.html#a237dde266f22e3a1a76abc0137d255a5">_connectAttempt</a>++;
<a name="l00079"></a>00079 <a class="code" href="namespacetc.html#aee5c749751dca91b96d6d024b1c4a076">tc::debug</a>(<span class="stringliteral">"Connecting to Tor (Attempt %1 of %2)"</span>).arg(<a class="code" href="class_control_connection.html#a237dde266f22e3a1a76abc0137d255a5">_connectAttempt</a>)
<a name="l00080"></a>00080 .arg(<a class="code" href="_control_connection_8cpp.html#ab2e7505a14f10095a4d935adc08c677d">MAX_CONNECT_ATTEMPTS</a>);
<a name="l00081"></a>00081
<a name="l00082"></a>00082 <a class="code" href="class_control_connection.html#a1147b8d98aba5e5d12e0a2d1792372ae">_connMutex</a>.lock();
<a name="l00083"></a>00083 <a class="code" href="class_control_connection.html#a19bab8aff5488d33d9d89f54b413d425">_sock</a>->connectToHost(<a class="code" href="class_control_connection.html#a89f24cc2722d64f83ac4407d0c4c6ae9">_addr</a>, <a class="code" href="class_control_connection.html#a205fdd450015f8b7d34ae2b7282d4835">_port</a>);
<a name="l00084"></a>00084 <a class="code" href="class_control_connection.html#a1147b8d98aba5e5d12e0a2d1792372ae">_connMutex</a>.unlock();
<a name="l00085"></a>00085 }
<a name="l00086"></a>00086 <span class="comment"></span>
<a name="l00087"></a>00087 <span class="comment">/** Disconnect from Tor's control interface. */</span>
<a name="l00088"></a>00088 <span class="keywordtype">void</span>
<a name="l00089"></a><a class="code" href="class_control_connection.html#a63ff0aa4d96112e21566a64f5a25d8a7">00089</a> <a class="code" href="class_control_connection.html#a63ff0aa4d96112e21566a64f5a25d8a7">ControlConnection::disconnect</a>()
<a name="l00090"></a>00090 {
<a name="l00091"></a>00091 <a class="code" href="class_control_connection.html#a3ad24531cc04488a33850731c171499d">setStatus</a>(<a class="code" href="class_control_connection.html#a60fe264cf74ba322bc0fe4693e2e77ada9f904aa084cadfd82bb74fa554c4ac2f">Disconnecting</a>);
<a name="l00092"></a>00092 <a class="code" href="class_control_connection.html#a1147b8d98aba5e5d12e0a2d1792372ae">_connMutex</a>.lock();
<a name="l00093"></a>00093 <a class="code" href="class_control_connection.html#a19bab8aff5488d33d9d89f54b413d425">_sock</a>->disconnectFromHost();
<a name="l00094"></a>00094 <a class="code" href="class_control_connection.html#a1147b8d98aba5e5d12e0a2d1792372ae">_connMutex</a>.unlock();
<a name="l00095"></a>00095 }
<a name="l00096"></a>00096 <span class="comment"></span>
<a name="l00097"></a>00097 <span class="comment">/** Called when the control socket is connected. This method checks that the</span>
<a name="l00098"></a>00098 <span class="comment"> * control protocol version of the Tor we connected to is at least V1. */</span>
<a name="l00099"></a>00099 <span class="keywordtype">void</span>
<a name="l00100"></a><a class="code" href="class_control_connection.html#a16d9c59d084b2a0101b356eb1a4ea315">00100</a> <a class="code" href="class_control_connection.html#a16d9c59d084b2a0101b356eb1a4ea315">ControlConnection::onConnected</a>()
<a name="l00101"></a>00101 {
<a name="l00102"></a>00102 <a class="code" href="class_control_connection.html#a3ad24531cc04488a33850731c171499d">setStatus</a>(<a class="code" href="class_control_connection.html#a60fe264cf74ba322bc0fe4693e2e77adaa5310cd01386f5d985911e51adfea403">Connected</a>);
<a name="l00103"></a>00103 emit <a class="code" href="class_control_connection.html#a4c11c6081d1e5838832b6c1b0750571b">connected</a>();
<a name="l00104"></a>00104 }
<a name="l00105"></a>00105 <span class="comment"></span>
<a name="l00106"></a>00106 <span class="comment">/** Called when the control socket is disconnected and stops the control</span>
<a name="l00107"></a>00107 <span class="comment"> * thread's event loop. */</span>
<a name="l00108"></a>00108 <span class="keywordtype">void</span>
<a name="l00109"></a><a class="code" href="class_control_connection.html#a79eaeff93b3c688ff572e439fc9d4df8">00109</a> <a class="code" href="class_control_connection.html#a79eaeff93b3c688ff572e439fc9d4df8">ControlConnection::onDisconnected</a>()
<a name="l00110"></a>00110 {
<a name="l00111"></a>00111 <a class="code" href="class_control_connection.html#a3ad24531cc04488a33850731c171499d">setStatus</a>(<a class="code" href="class_control_connection.html#a60fe264cf74ba322bc0fe4693e2e77adaa6ea0b95567f8d0cc5f5d8ef93899ca8">Disconnected</a>);
<a name="l00112"></a>00112 emit <a class="code" href="class_control_connection.html#a41452502fd8508b45b15296871ba22ed">disconnected</a>();
<a name="l00113"></a>00113 exit(0);
<a name="l00114"></a>00114 }
<a name="l00115"></a>00115 <span class="comment"></span>
<a name="l00116"></a>00116 <span class="comment">/** Called when the control socket encounters <b>error</b>. */</span>
<a name="l00117"></a>00117 <span class="keywordtype">void</span>
<a name="l00118"></a><a class="code" href="class_control_connection.html#a0f3c03d48accbfaeea2539c982009196">00118</a> <a class="code" href="class_control_connection.html#a0f3c03d48accbfaeea2539c982009196">ControlConnection::onError</a>(QAbstractSocket::SocketError <a class="code" href="namespacetc.html#aa7353218fd7baef0876bbb422ce818af">error</a>)
<a name="l00119"></a>00119 {
<a name="l00120"></a>00120 <span class="keywordflow">if</span> (<a class="code" href="class_control_connection.html#a34bcf7d414507cba5dd9905b78282f17">status</a>() == <a class="code" href="class_control_connection.html#a60fe264cf74ba322bc0fe4693e2e77adabd3d25f7cb53a85649ed2e47c19fef97">Connecting</a>) {
<a name="l00121"></a>00121 <span class="comment">/* If we got a 'connection refused' and we haven't exceeded</span>
<a name="l00122"></a>00122 <span class="comment"> * MAX_CONNECT_ATTEMPTS, then try to reconnect since Tor is probably</span>
<a name="l00123"></a>00123 <span class="comment"> * running, but it doesn't have a ControlPort open yet. */</span>
<a name="l00124"></a>00124 <span class="keywordflow">if</span> (error == QAbstractSocket::ConnectionRefusedError &&
<a name="l00125"></a>00125 <a class="code" href="class_control_connection.html#a237dde266f22e3a1a76abc0137d255a5">_connectAttempt</a> < <a class="code" href="_control_connection_8cpp.html#ab2e7505a14f10095a4d935adc08c677d">MAX_CONNECT_ATTEMPTS</a>) {
<a name="l00126"></a>00126 <a class="code" href="namespacetc.html#aee5c749751dca91b96d6d024b1c4a076">tc::debug</a>(<span class="stringliteral">"Control connection refused. Retrying in %1ms."</span>)
<a name="l00127"></a>00127 .arg(<a class="code" href="_control_connection_8cpp.html#a3945faefd22f395a81c4193afcfd3627">CONNECT_RETRY_DELAY</a>);
<a name="l00128"></a>00128 <a class="code" href="class_control_connection.html#ab13316cbf2e92eb183ca79d4e3da553e">_connectTimer</a>->start(<a class="code" href="_control_connection_8cpp.html#a3945faefd22f395a81c4193afcfd3627">CONNECT_RETRY_DELAY</a>);
<a name="l00129"></a>00129 } <span class="keywordflow">else</span> {
<a name="l00130"></a>00130 <span class="comment">/* Exceeded maximum number of connect attempts. Give up. */</span>
<a name="l00131"></a>00131 QString errstr = <a class="code" href="class_control_socket.html#a34ebf2e5e3314a619cca291c69b7f7e1">ControlSocket::toString</a>(error);
<a name="l00132"></a>00132 <a class="code" href="namespacetc.html#aa7353218fd7baef0876bbb422ce818af">tc::error</a>(<span class="stringliteral">"Vidalia was unable to connect to Tor: %1"</span>).arg(errstr);
<a name="l00133"></a>00133 emit <a class="code" href="class_control_connection.html#a48c3be68d03244159c580d32429c94b4">connectFailed</a>(tr(<span class="stringliteral">"Vidalia was unable to connect to Tor. (%1)"</span>)
<a name="l00134"></a>00134 .arg(errstr));
<a name="l00135"></a>00135 <a class="code" href="class_control_connection.html#a3ad24531cc04488a33850731c171499d">setStatus</a>(<a class="code" href="class_control_connection.html#a60fe264cf74ba322bc0fe4693e2e77adaa6ea0b95567f8d0cc5f5d8ef93899ca8">Disconnected</a>);
<a name="l00136"></a>00136 }
<a name="l00137"></a>00137 } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (error == QAbstractSocket::RemoteHostClosedError) {
<a name="l00138"></a>00138 <span class="comment">/* Tor closed the connection. This is common when we send a 'shutdown' or</span>
<a name="l00139"></a>00139 <span class="comment"> * 'halt' signal to Tor and doesn't need to be logged as loudly. */</span>
<a name="l00140"></a>00140 <a class="code" href="namespacetc.html#a161e534a110ff1f23f8a13a9ebdc00ee">tc::warn</a>(<span class="stringliteral">"Tor closed the control connection."</span>);
<a name="l00141"></a>00141 } <span class="keywordflow">else</span> {
<a name="l00142"></a>00142 <span class="comment">/* Some other error. */</span>
<a name="l00143"></a>00143 <span class="comment">/*XXX We may want to be emitting these so the GUI thread can learn about</span>
<a name="l00144"></a>00144 <span class="comment"> * them and display an error message. */</span>
<a name="l00145"></a>00145 <a class="code" href="namespacetc.html#aa7353218fd7baef0876bbb422ce818af">tc::error</a>(<span class="stringliteral">"Control socket error: %1"</span>).arg(<a class="code" href="class_control_socket.html#a34ebf2e5e3314a619cca291c69b7f7e1">ControlSocket::toString</a>(error));
<a name="l00146"></a>00146 }
<a name="l00147"></a>00147 }
<a name="l00148"></a>00148 <span class="comment"></span>
<a name="l00149"></a>00149 <span class="comment">/** Cancels a pending control connection to Tor. */</span>
<a name="l00150"></a>00150 <span class="keywordtype">void</span>
<a name="l00151"></a><a class="code" href="class_control_connection.html#a0f737e7f32923003556eb6787a089ccd">00151</a> <a class="code" href="class_control_connection.html#a0f737e7f32923003556eb6787a089ccd">ControlConnection::cancelConnect</a>()
<a name="l00152"></a>00152 {
<a name="l00153"></a>00153 <a class="code" href="namespacetc.html#a161e534a110ff1f23f8a13a9ebdc00ee">tc::warn</a>(<span class="stringliteral">"Control connection attempt cancelled."</span>);
<a name="l00154"></a>00154 <a class="code" href="class_control_connection.html#a3ad24531cc04488a33850731c171499d">setStatus</a>(<a class="code" href="class_control_connection.html#a60fe264cf74ba322bc0fe4693e2e77adaa6ea0b95567f8d0cc5f5d8ef93899ca8">Disconnected</a>);
<a name="l00155"></a>00155 exit(0);
<a name="l00156"></a>00156 }
<a name="l00157"></a>00157 <span class="comment"></span>
<a name="l00158"></a>00158 <span class="comment">/** Returns true if the control socket is connected to Tor. */</span>
<a name="l00159"></a>00159 <span class="keywordtype">bool</span>
<a name="l00160"></a><a class="code" href="class_control_connection.html#a9503aa0c9eab967da5686ffa4edc447f">00160</a> <a class="code" href="class_control_connection.html#a9503aa0c9eab967da5686ffa4edc447f">ControlConnection::isConnected</a>()
<a name="l00161"></a>00161 {
<a name="l00162"></a>00162 <span class="keywordflow">return</span> (<a class="code" href="class_control_connection.html#a34bcf7d414507cba5dd9905b78282f17">status</a>() == <a class="code" href="class_control_connection.html#a60fe264cf74ba322bc0fe4693e2e77adaa5310cd01386f5d985911e51adfea403">Connected</a>);
<a name="l00163"></a>00163 }
<a name="l00164"></a>00164 <span class="comment"></span>
<a name="l00165"></a>00165 <span class="comment">/** Returns the status of the control connection. */</span>
<a name="l00166"></a>00166 <a class="code" href="class_control_connection.html#a60fe264cf74ba322bc0fe4693e2e77ad">ControlConnection::Status</a>
<a name="l00167"></a><a class="code" href="class_control_connection.html#a34bcf7d414507cba5dd9905b78282f17">00167</a> <a class="code" href="class_control_connection.html#a34bcf7d414507cba5dd9905b78282f17">ControlConnection::status</a>()
<a name="l00168"></a>00168 {
<a name="l00169"></a>00169 QMutexLocker locker(&<a class="code" href="class_control_connection.html#a86de4e5b680f5fe1a7064e5191134498">_statusMutex</a>);
<a name="l00170"></a>00170 <span class="keywordflow">return</span> <a class="code" href="class_control_connection.html#a9e88a144a3321f31ebccd51f1aa4ccc2">_status</a>;
<a name="l00171"></a>00171 }
<a name="l00172"></a>00172 <span class="comment"></span>
<a name="l00173"></a>00173 <span class="comment">/** Returns a string description of the control Status value</span>
<a name="l00174"></a>00174 <span class="comment"> * <b>status</b>. */</span>
<a name="l00175"></a>00175 QString
<a name="l00176"></a><a class="code" href="class_control_connection.html#a999aac9c733ab7f829a20a5042625bd6">00176</a> <a class="code" href="class_control_connection.html#a999aac9c733ab7f829a20a5042625bd6">ControlConnection::statusString</a>(<a class="code" href="class_control_connection.html#a60fe264cf74ba322bc0fe4693e2e77ad">Status</a> status)
<a name="l00177"></a>00177 {
<a name="l00178"></a>00178 QString str;
<a name="l00179"></a>00179 <span class="keywordflow">switch</span> (status) {
<a name="l00180"></a>00180 <span class="keywordflow">case</span> <a class="code" href="class_control_connection.html#a60fe264cf74ba322bc0fe4693e2e77ada8fca398689e2de1266ae02a7032a5516">Unset</a>: str = <span class="stringliteral">"Unset"</span>; <span class="keywordflow">break</span>;
<a name="l00181"></a>00181 <span class="keywordflow">case</span> <a class="code" href="class_control_connection.html#a60fe264cf74ba322bc0fe4693e2e77adaa6ea0b95567f8d0cc5f5d8ef93899ca8">Disconnected</a>: str = <span class="stringliteral">"Disconnected"</span>; <span class="keywordflow">break</span>;
<a name="l00182"></a>00182 <span class="keywordflow">case</span> <a class="code" href="class_control_connection.html#a60fe264cf74ba322bc0fe4693e2e77ada9f904aa084cadfd82bb74fa554c4ac2f">Disconnecting</a>: str = <span class="stringliteral">"Disconnecting"</span>; <span class="keywordflow">break</span>;
<a name="l00183"></a>00183 <span class="keywordflow">case</span> <a class="code" href="class_control_connection.html#a60fe264cf74ba322bc0fe4693e2e77adabd3d25f7cb53a85649ed2e47c19fef97">Connecting</a>: str = <span class="stringliteral">"Connecting"</span>; <span class="keywordflow">break</span>;
<a name="l00184"></a>00184 <span class="keywordflow">case</span> <a class="code" href="class_control_connection.html#a60fe264cf74ba322bc0fe4693e2e77adaa5310cd01386f5d985911e51adfea403">Connected</a>: str = <span class="stringliteral">"Connected"</span>; <span class="keywordflow">break</span>;
<a name="l00185"></a>00185 <span class="keywordflow">default</span>: str = <span class="stringliteral">"unknown"</span>;
<a name="l00186"></a>00186 }
<a name="l00187"></a>00187 <span class="keywordflow">return</span> str;
<a name="l00188"></a>00188 }
<a name="l00189"></a>00189 <span class="comment"></span>
<a name="l00190"></a>00190 <span class="comment">/** Sets the control connection status. */</span>
<a name="l00191"></a>00191 <span class="keywordtype">void</span>
<a name="l00192"></a><a class="code" href="class_control_connection.html#a3ad24531cc04488a33850731c171499d">00192</a> <a class="code" href="class_control_connection.html#a3ad24531cc04488a33850731c171499d">ControlConnection::setStatus</a>(<a class="code" href="class_control_connection.html#a60fe264cf74ba322bc0fe4693e2e77ad">Status</a> status)
<a name="l00193"></a>00193 {
<a name="l00194"></a>00194 QMutexLocker locker(&<a class="code" href="class_control_connection.html#a86de4e5b680f5fe1a7064e5191134498">_statusMutex</a>);
<a name="l00195"></a>00195 <a class="code" href="namespacetc.html#aee5c749751dca91b96d6d024b1c4a076">tc::debug</a>(<span class="stringliteral">"Control connection status changed from '%1' to '%2'"</span>)
<a name="l00196"></a>00196 .arg(<a class="code" href="class_control_connection.html#a999aac9c733ab7f829a20a5042625bd6">statusString</a>(<a class="code" href="class_control_connection.html#a9e88a144a3321f31ebccd51f1aa4ccc2">_status</a>))
<a name="l00197"></a>00197 .arg(<a class="code" href="class_control_connection.html#a999aac9c733ab7f829a20a5042625bd6">statusString</a>(status));
<a name="l00198"></a>00198 <a class="code" href="class_control_connection.html#a9e88a144a3321f31ebccd51f1aa4ccc2">_status</a> = status;
<a name="l00199"></a>00199 }
<a name="l00200"></a>00200 <span class="comment"></span>
<a name="l00201"></a>00201 <span class="comment">/** Sends a control command to Tor and waits for the reply. */</span>
<a name="l00202"></a>00202 <span class="keywordtype">bool</span>
<a name="l00203"></a><a class="code" href="class_control_connection.html#aa5e4ff44b7c6e0773eda0a2f90505657">00203</a> <a class="code" href="class_control_connection.html#aa5e4ff44b7c6e0773eda0a2f90505657">ControlConnection::send</a>(<span class="keyword">const</span> <a class="code" href="class_control_command.html">ControlCommand</a> &cmd,
<a name="l00204"></a>00204 <a class="code" href="class_control_reply.html">ControlReply</a> &reply, QString *errmsg)
<a name="l00205"></a>00205 {
<a name="l00206"></a>00206 <span class="keywordtype">bool</span> result = <span class="keyword">false</span>;
<a name="l00207"></a>00207 QString errstr;
<a name="l00208"></a>00208
<a name="l00209"></a>00209 <a class="code" href="class_control_connection.html#ac9d5bd332d6dfe9cd3e0a977f2cae0e9">_recvMutex</a>.lock();
<a name="l00210"></a>00210 <span class="keywordflow">if</span> (<a class="code" href="class_control_connection.html#aa5e4ff44b7c6e0773eda0a2f90505657">send</a>(cmd, &errstr)) {
<a name="l00211"></a>00211 <span class="comment">/* Create and enqueue a new receive waiter */</span>
<a name="l00212"></a>00212 <a class="code" href="class_control_connection_1_1_receive_waiter.html">ReceiveWaiter</a> *w = <span class="keyword">new</span> <a class="code" href="class_control_connection_1_1_receive_waiter.html">ReceiveWaiter</a>();
<a name="l00213"></a>00213 <a class="code" href="class_control_connection.html#a31fbf6a6d44dcb7f1444bfb8655eb898">_recvQueue</a>.enqueue(w);
<a name="l00214"></a>00214 <a class="code" href="class_control_connection.html#ac9d5bd332d6dfe9cd3e0a977f2cae0e9">_recvMutex</a>.unlock();
<a name="l00215"></a>00215
<a name="l00216"></a>00216 <span class="comment">/* Wait for and get the result, clean up, and return */</span>
<a name="l00217"></a>00217 result = w-><a class="code" href="class_control_connection_1_1_receive_waiter.html#ac834f75364058b66233dc464e52ad514">getResult</a>(&reply, &errstr);
<a name="l00218"></a>00218 <span class="keywordflow">if</span> (!result)
<a name="l00219"></a>00219 <a class="code" href="namespacetc.html#aa7353218fd7baef0876bbb422ce818af">tc::error</a>(<span class="stringliteral">"Failed to receive control reply: %1"</span>).arg(errstr);
<a name="l00220"></a>00220 <span class="keyword">delete</span> w;
<a name="l00221"></a>00221 } <span class="keywordflow">else</span> {
<a name="l00222"></a>00222 <a class="code" href="namespacetc.html#aa7353218fd7baef0876bbb422ce818af">tc::error</a>(<span class="stringliteral">"Failed to send control command (%1): %2"</span>).arg(cmd.<a class="code" href="class_control_command.html#a42e58dd4d17e94d2434eba19318d4fac">keyword</a>())
<a name="l00223"></a>00223 .arg(errstr);
<a name="l00224"></a>00224 <a class="code" href="class_control_connection.html#ac9d5bd332d6dfe9cd3e0a977f2cae0e9">_recvMutex</a>.unlock();
<a name="l00225"></a>00225 }
<a name="l00226"></a>00226
<a name="l00227"></a>00227 <span class="keywordflow">if</span> (!result && errmsg)
<a name="l00228"></a>00228 *errmsg = errstr;
<a name="l00229"></a>00229 <span class="keywordflow">return</span> result;
<a name="l00230"></a>00230 }
<a name="l00231"></a>00231 <span class="comment"></span>
<a name="l00232"></a>00232 <span class="comment">/** Sends a control command to Tor and returns true if the command was sent</span>
<a name="l00233"></a>00233 <span class="comment"> * successfully. Otherwise, returns false and <b>*errmsg</b> (if supplied)</span>
<a name="l00234"></a>00234 <span class="comment"> * will be set. */</span>
<a name="l00235"></a>00235 <span class="keywordtype">bool</span>
<a name="l00236"></a><a class="code" href="class_control_connection.html#ab220fc648a52ceb380272548d72320be">00236</a> <a class="code" href="class_control_connection.html#aa5e4ff44b7c6e0773eda0a2f90505657">ControlConnection::send</a>(<span class="keyword">const</span> <a class="code" href="class_control_command.html">ControlCommand</a> &cmd, QString *errmsg)
<a name="l00237"></a>00237 {
<a name="l00238"></a>00238 <a class="code" href="class_control_connection.html#a1147b8d98aba5e5d12e0a2d1792372ae">_connMutex</a>.lock();
<a name="l00239"></a>00239 <span class="keywordflow">if</span> (!<a class="code" href="class_control_connection.html#a19bab8aff5488d33d9d89f54b413d425">_sock</a> || !<a class="code" href="class_control_connection.html#a19bab8aff5488d33d9d89f54b413d425">_sock</a>-><a class="code" href="class_control_socket.html#add0d8b44456f6b98ac52a3ccb642e4f2">isConnected</a>()) {
<a name="l00240"></a>00240 <a class="code" href="class_control_connection.html#a1147b8d98aba5e5d12e0a2d1792372ae">_connMutex</a>.unlock();
<a name="l00241"></a>00241 <span class="keywordflow">return</span> <a class="code" href="stringutil_8cpp.html#a6e3f242b28c9165146182aec25e351a3">err</a>(errmsg, tr(<span class="stringliteral">"Control socket is not connected."</span>));
<a name="l00242"></a>00242 }
<a name="l00243"></a>00243 QCoreApplication::postEvent(<a class="code" href="class_control_connection.html#a19bab8aff5488d33d9d89f54b413d425">_sock</a>, <span class="keyword">new</span> <a class="code" href="class_send_command_event.html">SendCommandEvent</a>(cmd, <a class="code" href="class_control_connection.html#afb1f68bd6b76a157470ea2327ff62563">_sendWaiter</a>));
<a name="l00244"></a>00244 <a class="code" href="class_control_connection.html#a1147b8d98aba5e5d12e0a2d1792372ae">_connMutex</a>.unlock();
<a name="l00245"></a>00245
<a name="l00246"></a>00246 <span class="keywordflow">return</span> <a class="code" href="class_control_connection.html#afb1f68bd6b76a157470ea2327ff62563">_sendWaiter</a>-><a class="code" href="class_send_command_event_1_1_send_waiter.html#a5c403d791740e4b459338880cd7d22ef">getResult</a>(errmsg);
<a name="l00247"></a>00247 }
<a name="l00248"></a>00248 <span class="comment"></span>
<a name="l00249"></a>00249 <span class="comment">/** Called when there is data on the control socket. */</span>
<a name="l00250"></a>00250 <span class="keywordtype">void</span>
<a name="l00251"></a><a class="code" href="class_control_connection.html#a9dad84fe644cb9c0a786b1c7962240e8">00251</a> <a class="code" href="class_control_connection.html#a9dad84fe644cb9c0a786b1c7962240e8">ControlConnection::onReadyRead</a>()
<a name="l00252"></a>00252 {
<a name="l00253"></a>00253 QMutexLocker locker(&<a class="code" href="class_control_connection.html#a1147b8d98aba5e5d12e0a2d1792372ae">_connMutex</a>);
<a name="l00254"></a>00254 <a class="code" href="class_control_connection_1_1_receive_waiter.html">ReceiveWaiter</a> *waiter;
<a name="l00255"></a>00255 QString errmsg;
<a name="l00256"></a>00256
<a name="l00257"></a>00257 <span class="keywordflow">while</span> (<a class="code" href="class_control_connection.html#a19bab8aff5488d33d9d89f54b413d425">_sock</a>->canReadLine()) {
<a name="l00258"></a>00258 <a class="code" href="class_control_reply.html">ControlReply</a> reply;
<a name="l00259"></a>00259 <span class="keywordflow">if</span> (<a class="code" href="class_control_connection.html#a19bab8aff5488d33d9d89f54b413d425">_sock</a>-><a class="code" href="class_control_socket.html#a6a41a10e7cd0f5e21c33e78ba4d20cc4">readReply</a>(reply, &errmsg)) {
<a name="l00260"></a>00260 <span class="keywordflow">if</span> (reply.<a class="code" href="class_control_reply.html#a8b7a7275546b3ba8f5a3ec6296d971f0">getStatus</a>() == <span class="stringliteral">"650"</span>) {
<a name="l00261"></a>00261 <span class="comment">/* Asynchronous event message */</span>
<a name="l00262"></a>00262 <a class="code" href="namespacetc.html#aee5c749751dca91b96d6d024b1c4a076">tc::debug</a>(<span class="stringliteral">"Control Event: %1"</span>).arg(reply.<a class="code" href="class_control_reply.html#ad03c1cb6d54f7809975b733c4a33d38f">toString</a>());
<a name="l00263"></a>00263
<a name="l00264"></a>00264 <span class="keywordflow">if</span> (<a class="code" href="class_control_connection.html#aec45c94f839cf699724de0cf0131cfdc">_events</a>) {
<a name="l00265"></a>00265 <a class="code" href="class_control_connection.html#aec45c94f839cf699724de0cf0131cfdc">_events</a>-><a class="code" href="class_tor_events.html#a0b5f60ca782a3d0af243ce77c7189379">handleEvent</a>(reply);
<a name="l00266"></a>00266 }
<a name="l00267"></a>00267 } <span class="keywordflow">else</span> {
<a name="l00268"></a>00268 <span class="comment">/* Response to a previous command */</span>
<a name="l00269"></a>00269 <a class="code" href="namespacetc.html#aee5c749751dca91b96d6d024b1c4a076">tc::debug</a>(<span class="stringliteral">"Control Reply: %1"</span>).arg(reply.<a class="code" href="class_control_reply.html#ad03c1cb6d54f7809975b733c4a33d38f">toString</a>());
<a name="l00270"></a>00270
<a name="l00271"></a>00271 <a class="code" href="class_control_connection.html#ac9d5bd332d6dfe9cd3e0a977f2cae0e9">_recvMutex</a>.lock();
<a name="l00272"></a>00272 <span class="keywordflow">if</span> (!<a class="code" href="class_control_connection.html#a31fbf6a6d44dcb7f1444bfb8655eb898">_recvQueue</a>.isEmpty()) {
<a name="l00273"></a>00273 waiter = <a class="code" href="class_control_connection.html#a31fbf6a6d44dcb7f1444bfb8655eb898">_recvQueue</a>.dequeue();
<a name="l00274"></a>00274 waiter-><a class="code" href="class_control_connection_1_1_receive_waiter.html#afa6c4b6c506d69df960b934b4ba95095">setResult</a>(<span class="keyword">true</span>, reply);
<a name="l00275"></a>00275 }
<a name="l00276"></a>00276 <a class="code" href="class_control_connection.html#ac9d5bd332d6dfe9cd3e0a977f2cae0e9">_recvMutex</a>.unlock();
<a name="l00277"></a>00277 }
<a name="l00278"></a>00278 } <span class="keywordflow">else</span> {
<a name="l00279"></a>00279 <a class="code" href="namespacetc.html#aa7353218fd7baef0876bbb422ce818af">tc::error</a>(<span class="stringliteral">"Unable to read control reply: %1"</span>).arg(errmsg);
<a name="l00280"></a>00280 }
<a name="l00281"></a>00281 }
<a name="l00282"></a>00282 }
<a name="l00283"></a>00283 <span class="comment"></span>
<a name="l00284"></a>00284 <span class="comment">/** Main thread implementation. Creates and connects a control socket, then</span>
<a name="l00285"></a>00285 <span class="comment"> * spins up an event loop. */</span>
<a name="l00286"></a>00286 <span class="keywordtype">void</span>
<a name="l00287"></a><a class="code" href="class_control_connection.html#a5163cd5b981c83373ed6c41e05063de5">00287</a> <a class="code" href="class_control_connection.html#a5163cd5b981c83373ed6c41e05063de5">ControlConnection::run</a>()
<a name="l00288"></a>00288 {
<a name="l00289"></a>00289 <span class="comment">/* Create a new control socket */</span>
<a name="l00290"></a>00290 <a class="code" href="class_control_connection.html#a1147b8d98aba5e5d12e0a2d1792372ae">_connMutex</a>.lock();
<a name="l00291"></a>00291 <a class="code" href="class_control_connection.html#a19bab8aff5488d33d9d89f54b413d425">_sock</a> = <span class="keyword">new</span> <a class="code" href="class_control_socket.html">ControlSocket</a>();
<a name="l00292"></a>00292 <a class="code" href="class_control_connection.html#ab13316cbf2e92eb183ca79d4e3da553e">_connectTimer</a> = <span class="keyword">new</span> QTimer();
<a name="l00293"></a>00293 <a class="code" href="class_control_connection.html#ab13316cbf2e92eb183ca79d4e3da553e">_connectTimer</a>->setSingleShot(<span class="keyword">true</span>);
<a name="l00294"></a>00294
<a name="l00295"></a>00295 <a class="code" href="class_control_connection.html#af18111442847fa19e5dbc16d5834f342">QObject::connect</a>(<a class="code" href="class_control_connection.html#a19bab8aff5488d33d9d89f54b413d425">_sock</a>, SIGNAL(readyRead()), <span class="keyword">this</span>, SLOT(<a class="code" href="class_control_connection.html#a9dad84fe644cb9c0a786b1c7962240e8">onReadyRead</a>()),
<a name="l00296"></a>00296 Qt::DirectConnection);
<a name="l00297"></a>00297 <a class="code" href="class_control_connection.html#af18111442847fa19e5dbc16d5834f342">QObject::connect</a>(<a class="code" href="class_control_connection.html#a19bab8aff5488d33d9d89f54b413d425">_sock</a>, SIGNAL(<a class="code" href="class_control_connection.html#a41452502fd8508b45b15296871ba22ed">disconnected</a>()), <span class="keyword">this</span>, SLOT(<a class="code" href="class_control_connection.html#a79eaeff93b3c688ff572e439fc9d4df8">onDisconnected</a>()),
<a name="l00298"></a>00298 Qt::DirectConnection);
<a name="l00299"></a>00299 <a class="code" href="class_control_connection.html#af18111442847fa19e5dbc16d5834f342">QObject::connect</a>(<a class="code" href="class_control_connection.html#a19bab8aff5488d33d9d89f54b413d425">_sock</a>, SIGNAL(<a class="code" href="class_control_connection.html#a4c11c6081d1e5838832b6c1b0750571b">connected</a>()), <span class="keyword">this</span>, SLOT(<a class="code" href="class_control_connection.html#a16d9c59d084b2a0101b356eb1a4ea315">onConnected</a>()),
<a name="l00300"></a>00300 Qt::DirectConnection);
<a name="l00301"></a>00301 <a class="code" href="class_control_connection.html#af18111442847fa19e5dbc16d5834f342">QObject::connect</a>(<a class="code" href="class_control_connection.html#a19bab8aff5488d33d9d89f54b413d425">_sock</a>, SIGNAL(<a class="code" href="namespacetc.html#aa7353218fd7baef0876bbb422ce818af">error</a>(QAbstractSocket::SocketError)),
<a name="l00302"></a>00302 <span class="keyword">this</span>, SLOT(<a class="code" href="class_control_connection.html#a0f3c03d48accbfaeea2539c982009196">onError</a>(QAbstractSocket::SocketError)),
<a name="l00303"></a>00303 Qt::DirectConnection);
<a name="l00304"></a>00304 <a class="code" href="class_control_connection.html#af18111442847fa19e5dbc16d5834f342">QObject::connect</a>(<a class="code" href="class_control_connection.html#ab13316cbf2e92eb183ca79d4e3da553e">_connectTimer</a>, SIGNAL(timeout()), <span class="keyword">this</span>, SLOT(<a class="code" href="class_control_connection.html#af18111442847fa19e5dbc16d5834f342">connect</a>()),
<a name="l00305"></a>00305 Qt::DirectConnection);
<a name="l00306"></a>00306
<a name="l00307"></a>00307 <a class="code" href="class_control_connection.html#a1147b8d98aba5e5d12e0a2d1792372ae">_connMutex</a>.unlock();
<a name="l00308"></a>00308
<a name="l00309"></a>00309 <span class="comment">/* Attempt to connect to Tor */</span>
<a name="l00310"></a>00310 <a class="code" href="class_control_connection.html#af18111442847fa19e5dbc16d5834f342">connect</a>();
<a name="l00311"></a>00311 <a class="code" href="namespacetc.html#aee5c749751dca91b96d6d024b1c4a076">tc::debug</a>(<span class="stringliteral">"Starting control connection event loop."</span>);
<a name="l00312"></a>00312 exec();
<a name="l00313"></a>00313 <a class="code" href="namespacetc.html#aee5c749751dca91b96d6d024b1c4a076">tc::debug</a>(<span class="stringliteral">"Exited control connection event loop."</span>);
<a name="l00314"></a>00314
<a name="l00315"></a>00315 <span class="comment">/* Clean up the socket */</span>
<a name="l00316"></a>00316 <a class="code" href="class_control_connection.html#a1147b8d98aba5e5d12e0a2d1792372ae">_connMutex</a>.lock();
<a name="l00317"></a>00317 <a class="code" href="class_control_connection.html#a19bab8aff5488d33d9d89f54b413d425">_sock</a>->disconnect(<span class="keyword">this</span>);
<a name="l00318"></a>00318 <span class="keyword">delete</span> <a class="code" href="class_control_connection.html#a19bab8aff5488d33d9d89f54b413d425">_sock</a>;
<a name="l00319"></a>00319 <span class="keyword">delete</span> <a class="code" href="class_control_connection.html#ab13316cbf2e92eb183ca79d4e3da553e">_connectTimer</a>;
<a name="l00320"></a>00320 <a class="code" href="class_control_connection.html#a19bab8aff5488d33d9d89f54b413d425">_sock</a> = 0;
<a name="l00321"></a>00321 <a class="code" href="class_control_connection.html#a1147b8d98aba5e5d12e0a2d1792372ae">_connMutex</a>.unlock();
<a name="l00322"></a>00322
<a name="l00323"></a>00323 <span class="comment">/* If there are any messages waiting for a response, clear them. */</span>
<a name="l00324"></a>00324 <span class="keywordflow">if</span> (<a class="code" href="class_control_connection.html#afb1f68bd6b76a157470ea2327ff62563">_sendWaiter</a>-><a class="code" href="class_send_command_event_1_1_send_waiter.html#ac0dd97bd93d2c8f50afaa24b7e726bdb">status</a>() == <a class="code" href="class_send_command_event_1_1_send_waiter.html#a39b51b851bab2241ca9117092ca86e50ad1e8bf2c2d5b97a6faf5f931e19dac0e">SendCommandEvent::SendWaiter::Waiting</a>)
<a name="l00325"></a>00325 <a class="code" href="class_control_connection.html#afb1f68bd6b76a157470ea2327ff62563">_sendWaiter</a>-><a class="code" href="class_send_command_event_1_1_send_waiter.html#aa11cdedd453da5ff1aa9a735616dc9ee">setResult</a>(<span class="keyword">false</span>, tr(<span class="stringliteral">"Control socket is not connected."</span>));
<a name="l00326"></a>00326
<a name="l00327"></a>00327 <a class="code" href="class_control_connection.html#ac9d5bd332d6dfe9cd3e0a977f2cae0e9">_recvMutex</a>.lock();
<a name="l00328"></a>00328 <span class="keywordflow">while</span> (!<a class="code" href="class_control_connection.html#a31fbf6a6d44dcb7f1444bfb8655eb898">_recvQueue</a>.isEmpty()) {
<a name="l00329"></a>00329 <a class="code" href="class_control_connection_1_1_receive_waiter.html">ReceiveWaiter</a> *w = <a class="code" href="class_control_connection.html#a31fbf6a6d44dcb7f1444bfb8655eb898">_recvQueue</a>.dequeue();
<a name="l00330"></a>00330 w-><a class="code" href="class_control_connection_1_1_receive_waiter.html#afa6c4b6c506d69df960b934b4ba95095">setResult</a>(<span class="keyword">false</span>, <a class="code" href="class_control_reply.html">ControlReply</a>(),
<a name="l00331"></a>00331 tr(<span class="stringliteral">"Control socket is not connected."</span>));
<a name="l00332"></a>00332 }
<a name="l00333"></a>00333 <a class="code" href="class_control_connection.html#ac9d5bd332d6dfe9cd3e0a977f2cae0e9">_recvMutex</a>.unlock();
<a name="l00334"></a>00334 }
<a name="l00335"></a>00335
<a name="l00336"></a>00336
<a name="l00337"></a>00337 <span class="comment">/*</span>
<a name="l00338"></a>00338 <span class="comment"> * ControlConnection::ReceiveWaiter</span>
<a name="l00339"></a>00339 <span class="comment"> */</span><span class="comment"></span>
<a name="l00340"></a>00340 <span class="comment">/** Waits for and gets the reply from a control command. */</span>
<a name="l00341"></a>00341 <span class="keywordtype">bool</span>
<a name="l00342"></a><a class="code" href="class_control_connection_1_1_receive_waiter.html#ac834f75364058b66233dc464e52ad514">00342</a> <a class="code" href="class_control_connection_1_1_receive_waiter.html#ac834f75364058b66233dc464e52ad514">ControlConnection::ReceiveWaiter::getResult</a>(<a class="code" href="class_control_reply.html">ControlReply</a> *reply,
<a name="l00343"></a>00343 QString *errmsg)
<a name="l00344"></a>00344 {
<a name="l00345"></a>00345 forever {
<a name="l00346"></a>00346 <a class="code" href="class_control_connection_1_1_receive_waiter.html#ad5410d6059c78f72381780a576d0d860">_mutex</a>.lock();
<a name="l00347"></a>00347 <span class="keywordflow">if</span> (<a class="code" href="class_control_connection_1_1_receive_waiter.html#a3ace3ae22c81890b8488a1d86e3487cc">_status</a> == <a class="code" href="class_control_connection_1_1_receive_waiter.html#a243767011011dce8e322ea83fae716e8ac8adede576e957f9ad2d776e8d826e08">Waiting</a>) {
<a name="l00348"></a>00348 <a class="code" href="class_control_connection_1_1_receive_waiter.html#a8634ba5ca3cb9b326d68d4760b20573e">_waitCond</a>.wait(&<a class="code" href="class_control_connection_1_1_receive_waiter.html#ad5410d6059c78f72381780a576d0d860">_mutex</a>);
<a name="l00349"></a>00349 <a class="code" href="class_control_connection_1_1_receive_waiter.html#ad5410d6059c78f72381780a576d0d860">_mutex</a>.unlock();
<a name="l00350"></a>00350 } <span class="keywordflow">else</span> {
<a name="l00351"></a>00351 <a class="code" href="class_control_connection_1_1_receive_waiter.html#ad5410d6059c78f72381780a576d0d860">_mutex</a>.unlock();
<a name="l00352"></a>00352 <span class="keywordflow">break</span>;
<a name="l00353"></a>00353 }
<a name="l00354"></a>00354 }
<a name="l00355"></a>00355 <span class="keywordflow">if</span> (errmsg) {
<a name="l00356"></a>00356 *errmsg = <a class="code" href="class_control_connection_1_1_receive_waiter.html#a5a419730bbaa0d0d5708ba03c06bf4f7">_errmsg</a>;
<a name="l00357"></a>00357 }
<a name="l00358"></a>00358 *reply = <a class="code" href="class_control_connection_1_1_receive_waiter.html#a6e46c2a68ee8f4c653595da8719c09a8">_reply</a>;
<a name="l00359"></a>00359 <span class="keywordflow">return</span> (<a class="code" href="class_control_connection_1_1_receive_waiter.html#a3ace3ae22c81890b8488a1d86e3487cc">_status</a> == <a class="code" href="class_control_connection_1_1_receive_waiter.html#a243767011011dce8e322ea83fae716e8ac21b8b1bc732c32ada8481969551fdba">Success</a>);
<a name="l00360"></a>00360 }
<a name="l00361"></a>00361 <span class="comment"></span>
<a name="l00362"></a>00362 <span class="comment">/** Sets the result and reply from a control command. */</span>
<a name="l00363"></a>00363 <span class="keywordtype">void</span>
<a name="l00364"></a><a class="code" href="class_control_connection_1_1_receive_waiter.html#afa6c4b6c506d69df960b934b4ba95095">00364</a> <a class="code" href="class_control_connection_1_1_receive_waiter.html#afa6c4b6c506d69df960b934b4ba95095">ControlConnection::ReceiveWaiter::setResult</a>(<span class="keywordtype">bool</span> success,
<a name="l00365"></a>00365 <span class="keyword">const</span> <a class="code" href="class_control_reply.html">ControlReply</a> &reply,
<a name="l00366"></a>00366 <span class="keyword">const</span> QString &errmsg)
<a name="l00367"></a>00367 {
<a name="l00368"></a>00368 <a class="code" href="class_control_connection_1_1_receive_waiter.html#ad5410d6059c78f72381780a576d0d860">_mutex</a>.lock();
<a name="l00369"></a>00369 <a class="code" href="class_control_connection_1_1_receive_waiter.html#a3ace3ae22c81890b8488a1d86e3487cc">_status</a> = (success ? <a class="code" href="class_control_connection_1_1_receive_waiter.html#a243767011011dce8e322ea83fae716e8ac21b8b1bc732c32ada8481969551fdba">Success</a> : <a class="code" href="class_control_connection_1_1_receive_waiter.html#a243767011011dce8e322ea83fae716e8a5fd84806648e8bee2497dc12a6ffa2b1">Failed</a>);
<a name="l00370"></a>00370 <a class="code" href="class_control_connection_1_1_receive_waiter.html#a6e46c2a68ee8f4c653595da8719c09a8">_reply</a> = reply;
<a name="l00371"></a>00371 <a class="code" href="class_control_connection_1_1_receive_waiter.html#a5a419730bbaa0d0d5708ba03c06bf4f7">_errmsg</a> = errmsg;
<a name="l00372"></a>00372 <a class="code" href="class_control_connection_1_1_receive_waiter.html#ad5410d6059c78f72381780a576d0d860">_mutex</a>.unlock();
<a name="l00373"></a>00373 <a class="code" href="class_control_connection_1_1_receive_waiter.html#a8634ba5ca3cb9b326d68d4760b20573e">_waitCond</a>.wakeAll();
<a name="l00374"></a>00374 }
<a name="l00375"></a>00375
</pre></div></div>
<hr class="footer"/><address style="text-align: right;"><small>Generated on Mon Aug 30 22:58:54 2010 for Vidalia by
<a href="http://www.doxygen.org/index.html">
<img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.6.3 </small></address>
</body>
</html>
distrib
>
Mandriva
>
2010.2
>
i586
>
media
>
contrib-backports
>
by-pkgid
>
9601c7beb4ff23e834bfa171795ed560
>
files
>
79
