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This is an automatically generated e-mail. To reply, visit:
<a href="https://git.reviewboard.kde.org/r/126078/">https://git.reviewboard.kde.org/r/126078/</a>
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<p style="margin-top: 0;">On November 18th, 2015, 8:22 a.m. CET, <b>Martin Gräßlin</b> wrote:</p>
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<a href="https://git.reviewboard.kde.org/r/126078/diff/6/?file=417217#file417217line222" style="color: black; font-weight: bold; text-decoration: underline;">src/plugins/osx/macpoller.cpp</a>
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(Diff revision 6)
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="k">if</span> <span class="p">(</span><span class="n">m_pollResolution</span> <span class="o"><</span> <span class="mi">5</span><span class="p">)</span> <span class="p">{</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">m_idleTimer</span><span class="o">-></span><span class="n">setTimerType</span><span class="p">(</span><span class="n">Qt</span><span class="o">::</span><span class="n">PreciseTimer</span><span class="p">);</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="p">}</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="k">else</span> <span class="p">{</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">m_idleTimer</span><span class="o">-></span><span class="n">setTimerType</span><span class="p">(</span><span class="n">Qt</span><span class="o">::</span><span class="n">CoarseTimer</span><span class="p">);</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="p">}</span></pre></td>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;"><p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">seriously? You care about idle timeouts below 5 msec? This is a framework to tell the application whether the user doesn't use input devices. I don't know how fast you type, but I'm relatively certain that it takes more than 5 msec to move my finger from one key to another. What exactly is that you want to detect here? An event after each key press, maybe even between a key press and a key release? Because that's probably already more about 5 msec.</p></pre>
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<p>On November 18th, 2015, 1:48 p.m. CET, <b>René J.V. Bertin</b> wrote:</p>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;"><p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">The timer is used only for the detection of idle timeouts (so <em style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: normal;">absence</em> of user input), and the precision with which it fires determines the accuracy with which those events can be timed. This is currently inaccessible anyway, but I don't believe in doing things half-bakedly. One might question whether it makes sense to allow the framework to work at high precision (I more or less agree that remains to be seen). But I don't think it makes sense to do that and then leave the QTimer in a mode where the requested precision cannot be met.</p></pre>
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<p>On November 18th, 2015, 3 p.m. CET, <b>Martin Gräßlin</b> wrote:</p>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;"><p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">To get this quite clear: you care about a precision of below 5 msec, this is a third of the time it takes at least till the next frame is rendered. If you are lucky you get the result of a key press or mouse move represented on screen after 16 msec, more likely it's more. And you care about a wrong timer precision below 5 msec. Sorry that's ridiculous. Please don't include such non-sense code. You make that code more difficult to all other developers to maintain. This code has cost if it's included.</p></pre>
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<pre style="margin-left: 1em; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;"><p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">It's not a matter of doing things "right" or "wrong". It's a matter of priorities.</p>
<p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">KIdleTime is a framework for figuring out whether the system is idle. I don't consider 5ms not using a system as it's being idling.</p></pre>
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<p>- Aleix</p>
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<p>On November 17th, 2015, 10:13 p.m. CET, René J.V. Bertin wrote:</p>
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<div>Review request for KDE Software on Mac OS X, KDE Frameworks and Dario Freddi.</div>
<div>By René J.V. Bertin.</div>
<p style="color: grey;"><i>Updated Nov. 17, 2015, 10:13 p.m.</i></p>
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<b style="color: #575012; font-size: 10pt;">Repository: </b>
kidletime
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Description </h1>
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<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;"><p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">I noticed that the KIdleTime example doesn't work properly on OS X, and that the plugin for OS X still uses the deprecated Carbon-based algorithm that I already patched for KDE4.</p>
<p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">This patch is a work-in-progress (hence the qDebugs) update to use IOKit, IORegistry and CoreServices to do idle-time calculation as it should be done, and allow simulated user activity through a "less deprecated" function.</p></pre>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Testing </h1>
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<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;"><p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">On OS X 10.9 with Qt 5.5.1 and frameworks 5.16.0 .</p>
<p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">The example now works: when I set a QTimer with interval==0, the expected wait for user input (<code style="text-rendering: inherit;color: #4444cc;padding: 0;white-space: normal;margin: 0;line-height: inherit;">resumingFromIdle</code> signal) works. However, I am getting a <code style="text-rendering: inherit;color: #4444cc;padding: 0;white-space: normal;margin: 0;line-height: inherit;">stopCatchingIdleEvents</code> signal which means the application waits forever, without ever getting to compare idle time to the list of timeouts.
I haven't been able to figure out where that signal comes from, nor why this doesn't happen on Linux.</p>
<p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">Surely I'm missing something, but what?</p></pre>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Diffs</b> </h1>
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<li>src/plugins/osx/CMakeLists.txt <span style="color: grey">(e1b50b8)</span></li>
<li>src/plugins/osx/macpoller.h <span style="color: grey">(ef51ea5)</span></li>
<li>src/plugins/osx/macpoller.cpp <span style="color: grey">(ad9c10f)</span></li>
<li>src/plugins/osx/macpoller_helper.mm <span style="color: grey">(PRE-CREATION)</span></li>
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<p><a href="https://git.reviewboard.kde.org/r/126078/diff/" style="margin-left: 3em;">View Diff</a></p>
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