<html>
<body>
<div style="font-family: Verdana, Arial, Helvetica, Sans-Serif;">
<table bgcolor="#f9f3c9" width="100%" cellpadding="8" style="border: 1px #c9c399 solid;">
<tr>
<td>
This is an automatically generated e-mail. To reply, visit:
<a href="http://git.reviewboard.kde.org/r/108113/">http://git.reviewboard.kde.org/r/108113/</a>
</td>
</tr>
</table>
<br />
<div>
<table width="100%" border="0" bgcolor="white" style="border: 1px solid #C0C0C0; border-collapse: collapse; margin: 2px padding: 2px;">
<thead>
<tr>
<th colspan="4" bgcolor="#F0F0F0" style="border-bottom: 1px solid #C0C0C0; font-size: 9pt; padding: 4px 8px; text-align: left;">
<a href="http://git.reviewboard.kde.org/r/108113/diff/1/?file=104174#file104174line43" style="color: black; font-weight: bold; text-decoration: underline;">src/connectivity/android/jni_android.cpp</a>
<span style="font-weight: normal;">
(Diff revision 1)
</span>
</th>
</tr>
</thead>
<tbody style="background-color: #e4d9cb; padding: 4px 8px; text-align: center;">
<tr>
<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">Q_DECL_EXPORT JNIEXPORT jint JNICALL JNI_OnLoad(JavaVM* vm, void* /*reserved*/)</pre></td>
</tr>
</tbody>
<tbody>
<tr>
<th bgcolor="#e9eaa8" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">43</font></th>
<td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="k">return</span> <span class="o">-</span><span class="mi">1</span><span class="p">;</span></pre></td>
<th bgcolor="#e9eaa8" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">43</font></th>
<td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="kt">int</span> <span class="n">status</span> <span class="o">=</span> <span class="n">vm</span><span class="o">-></span><span class="n">AttachCurrentThread</span><span class="p">(</span><span class="o">&</span><span class="n">nativeEnvironment</span><span class="p">,</span> <span class="nb">NULL</span><span class="p">);</span></pre></td>
</tr>
</tbody>
</table>
<pre style="margin-left: 2em; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">OK, that proves that the lib-loading-thread has been changed and the improvement is now more fail-safe. Looks OK but I'm not sure if it is now needed to DetachThread. The reason why this magic here on lines 38-71 is, was to get access to "android/app/Application" and BroadcastReviever.java. It was only possible in JNI_OnLoad because only that function was called by Ministro from the thread with Android App context. That is why "qtApplicationC" is saved and "nativeEnvironment" is passed on. Maybe it's not needed anymore - need to be checked.</pre>
</div>
<br />
<div>
<table width="100%" border="0" bgcolor="white" style="border: 1px solid #C0C0C0; border-collapse: collapse; margin: 2px padding: 2px;">
<thead>
<tr>
<th colspan="4" bgcolor="#F0F0F0" style="border-bottom: 1px solid #C0C0C0; font-size: 9pt; padding: 4px 8px; text-align: left;">
<a href="http://git.reviewboard.kde.org/r/108113/diff/1/?file=104175#file104175line100" style="color: black; font-weight: bold; text-decoration: underline;">src/connectivity/bluetooth/qbluetoothlocaldevice_android.cpp</a>
<span style="font-weight: normal;">
(Diff revision 1)
</span>
</th>
</tr>
</thead>
<tbody style="background-color: #e4d9cb; padding: 4px 8px; text-align: center;">
<tr>
<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">QBluetoothLocalDevice::QBluetoothLocalDevice(const QBluetoothAddress &address, QObject *parent)</pre></td>
</tr>
</tbody>
<tbody>
<tr>
<th bgcolor="#b1ebb0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2"></font></th>
<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
<th bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">100</font></th>
<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">jclass</span> <span class="n">btAdapterClass</span> <span class="o">=</span> <span class="n">env</span><span class="o">-></span><span class="n">FindClass</span><span class="p">(</span><span class="s">"android/bluetooth/BluetoothAdapter"</span><span class="p">);</span></pre></td>
</tr>
</tbody>
</table>
<pre style="margin-left: 2em; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Why is it needed to refresh btAdapter? Is the trouble actually the fact that QBluetoothLocalDevicePrivate::initialize is now called from another thread. Maybe missing detach in JNI_OnLoad gives troubles?</pre>
</div>
<br />
<div>
<table width="100%" border="0" bgcolor="white" style="border: 1px solid #C0C0C0; border-collapse: collapse; margin: 2px padding: 2px;">
<thead>
<tr>
<th colspan="4" bgcolor="#F0F0F0" style="border-bottom: 1px solid #C0C0C0; font-size: 9pt; padding: 4px 8px; text-align: left;">
<a href="http://git.reviewboard.kde.org/r/108113/diff/1/?file=104176#file104176line76" style="color: black; font-weight: bold; text-decoration: underline;">src/connectivity/bluetooth/qbluetoothlocaldevice_p.h</a>
<span style="font-weight: normal;">
(Diff revision 1)
</span>
</th>
</tr>
</thead>
<tbody style="background-color: #e4d9cb; padding: 4px 8px; text-align: center;">
<tr>
<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">QTM_BEGIN_NAMESPACE</pre></td>
</tr>
</tbody>
<tbody>
<tr>
<th bgcolor="#b1ebb0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2"></font></th>
<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
<th bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">76</font></th>
<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
</tr>
</tbody>
</table>
<pre style="margin-left: 2em; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Only a whitespace change? Could be removed to reduce noise?</pre>
</div>
<br />
<div>
<table width="100%" border="0" bgcolor="white" style="border: 1px solid #C0C0C0; border-collapse: collapse; margin: 2px padding: 2px;">
<thead>
<tr>
<th colspan="4" bgcolor="#F0F0F0" style="border-bottom: 1px solid #C0C0C0; font-size: 9pt; padding: 4px 8px; text-align: left;">
<a href="http://git.reviewboard.kde.org/r/108113/diff/1/?file=104177#file104177line155" style="color: black; font-weight: bold; text-decoration: underline;">src/connectivity/bluetooth/qbluetoothsocket_android.cpp</a>
<span style="font-weight: normal;">
(Diff revision 1)
</span>
</th>
</tr>
</thead>
<tbody style="background-color: #e4d9cb; padding: 4px 8px; text-align: center;">
<tr>
<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">void QBluetoothSocketPrivate::connectToServiceConc(const QBluetoothAddress &address, quint16 port, QIODevice::OpenMode openMode)</pre></td>
</tr>
</tbody>
<tbody>
<tr>
<th bgcolor="#b1ebb0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2"></font></th>
<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
<th bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">153</font></th>
<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">inputStream</span><span class="o">=</span><span class="n">env</span><span class="o">-></span><span class="n">NewGlobalRef</span><span class="p">(</span><span class="n">zinputStream</span><span class="p">);</span></pre></td>
</tr>
</tbody>
</table>
<pre style="margin-left: 2em; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">NewGlobalRef must also be deleted with DeleteGlobalRef, otherwise garbage collector will never destroy it and Android will have memory leaks. The exceptions are the ones created once during loading the libs, these will be removed together with the process.</pre>
</div>
<br />
<p>- Lauri</p>
<br />
<p>On January 3rd, 2013, 1:55 p.m., Kate Alhola wrote:</p>
<table bgcolor="#fefadf" width="100%" cellspacing="0" cellpadding="8" style="background-image: url('http://git.reviewboard.kde.org/media/rb/images/review_request_box_top_bg.png'); background-position: left top; background-repeat: repeat-x; border: 1px black solid;">
<tr>
<td>
<div>Review request for Necessitas and BogDan Vatra.</div>
<div>By Kate Alhola.</div>
<p style="color: grey;"><i>Updated Jan. 3, 2013, 1:55 p.m.</i></p>
<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Description </h1>
<table width="100%" bgcolor="#ffffff" cellspacing="0" cellpadding="10" style="border: 1px solid #b8b5a0">
<tr>
<td>
<pre style="margin: 0; padding: 0; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Qt Mobility Bluetooth crashed by JNI originated errors. Two root causes found, JNI vm->getEnv on different thread and missing NewGlobalRef's </pre>
</td>
</tr>
</table>
<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Testing </h1>
<table width="100%" bgcolor="#ffffff" cellspacing="0" cellpadding="10" style="border: 1px solid #b8b5a0">
<tr>
<td>
<pre style="margin: 0; padding: 0; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Tested on Samsung S3 and Acer Iconia A100 </pre>
</td>
</tr>
</table>
<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Diffs</b> </h1>
<ul style="margin-left: 3em; padding-left: 0;">
<li>src/connectivity/android/jni_android.cpp <span style="color: grey">(8c19b6a)</span></li>
<li>src/connectivity/bluetooth/qbluetoothlocaldevice_android.cpp <span style="color: grey">(7513eae)</span></li>
<li>src/connectivity/bluetooth/qbluetoothlocaldevice_p.h <span style="color: grey">(e854aeb)</span></li>
<li>src/connectivity/bluetooth/qbluetoothsocket_android.cpp <span style="color: grey">(7084a56)</span></li>
</ul>
<p><a href="http://git.reviewboard.kde.org/r/108113/diff/" style="margin-left: 3em;">View Diff</a></p>
</td>
</tr>
</table>
</div>
</body>
</html>