Review Request 126078: [OS X] modernising the KIdleTime plugin (WIP!)
René J.V. Bertin
rjvbertin at gmail.com
Mon Nov 16 12:15:39 UTC 2015
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Here's a debugging trace after hitting a breakpoint set on the qFatal() statement I put into `MacPoller::stopCatchingIdleEvents` . One can see `KIdleTime::stopCatchingResumeEvent` being called in frame 1, but I cannot identify the calling frame. It doesn't appear to be `KIdleTimePrivate::_k_resumingFromIdle()` (a breakpoint in there isn't hit).
```C++
Process 88123 launched: '/Applications/MacPorts/KF5/examples/kidletime_example.app/Contents/MacOS/kidletime_example' (x86_64)
starting the idletime poll QTimer with interval 0 and m_minTimeout -1 ; start of catch
Your idle time is 595
Welcome!! Move your mouse or do something to start...
Great! Now stay idle for 5 seconds to get a nice message. From 10seconds on, you can move your mouse to get back here.
If you will stay idle for too long, I will simulate your activityafter 25 seconds, and make everything start back
Appended timeout 5000 ; min.== -1
Appended timeout 10000 ; min.== -1
Appended timeout 25000 ; min.== -1
stopping the idletime poll QTimer; end of catch, idle= 2
Process 88123 stopped
* thread #1: tid = 0x37451f, 0x0000000104fb4359 KF5IdleTimeOsxPlugin.so`MacPoller::stopCatchingIdleEvents(this=<unavailable>) + 297 at macpoller.cpp:372, queue = 'com.apple.main-thread', stop reason = breakpoint 1.1
frame #0: 0x0000000104fb4359 KF5IdleTimeOsxPlugin.so`MacPoller::stopCatchingIdleEvents(this=<unavailable>) + 297 at macpoller.cpp:372
369 if (m_idleTimer) {
370 qDebug() << "stopping the idletime poll QTimer; end of catch, idle=" << poll(false);
371 // stopCatchingIdleEvents is called after each resumingFromIdle signal??!
-> 372 qFatal(__FUNCTION__);
373 m_idleTimer->stop();
374 }
375 #endif
(lldb) bt
* thread #1: tid = 0x37451f, 0x0000000104fb4359 KF5IdleTimeOsxPlugin.so`MacPoller::stopCatchingIdleEvents(this=<unavailable>) + 297 at macpoller.cpp:372, queue = 'com.apple.main-thread', stop reason = breakpoint 1.1
* frame #0: 0x0000000104fb4359 KF5IdleTimeOsxPlugin.so`MacPoller::stopCatchingIdleEvents(this=<unavailable>) + 297 at macpoller.cpp:372
frame #1: 0x000000010000b2c1 libKF5IdleTime.5.dylib`KIdleTime::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) [inlined] KIdleTime::stopCatchingResumeEvent() + 43 at kidletime.cpp:113
frame #2: 0x000000010000b296 libKF5IdleTime.5.dylib`KIdleTime::qt_static_metacall(_o=<unavailable>, _c=<unavailable>, _id=<unavailable>, _a=<unavailable>) + 582 at moc_kidletime.cpp:113
frame #3: 0x0000000101141252 QtCore`QMetaObject::activate(sender=0x00000001041161f0, signalOffset=<unavailable>, local_signal_index=<unavailable>, argv=<unavailable>) + 2978 at qobject.cpp:3713
frame #4: 0x0000000101141252 QtCore`QMetaObject::activate(sender=0x00000001041071c0, signalOffset=<unavailable>, local_signal_index=<unavailable>, argv=<unavailable>) + 2978 at qobject.cpp:3713
frame #5: 0x0000000101139740 QtCore`QObject::event(this=0x00000001041071c0, e=<unavailable>) + 48 at qobject.cpp:1220
frame #6: 0x000000010004854b QtWidgets`QApplicationPrivate::notify_helper(this=<unavailable>, receiver=0x00000001041071c0, e=0x00007fff5fbfd4e0) + 251 at qapplication.cpp:3716
frame #7: 0x000000010004b904 QtWidgets`QApplication::notify(this=<unavailable>, receiver=<unavailable>, e=<unavailable>) + 8212 at qapplication.cpp:3681
frame #8: 0x0000000101110703 QtCore`QCoreApplication::notifyInternal(this=<unavailable>, receiver=<unavailable>, event=<unavailable>) + 115 at qcoreapplication.cpp:970
frame #9: 0x0000000101163d16 QtCore`QTimerInfoList::activateTimers(this=0x0000000104059b10) + 1270 at qcoreapplication.h:224
frame #10: 0x0000000104ca5502 libqcocoa.dylib`QCocoaEventDispatcherPrivate::activateTimersSourceCallback(info=0x0000000104059a90) + 18 at qcocoaeventdispatcher.mm:121
frame #11: 0x00007fff90e4e5b1 CoreFoundation`__CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17
frame #12: 0x00007fff90e3fc62 CoreFoundation`__CFRunLoopDoSources0 + 242
frame #13: 0x00007fff90e3f3ef CoreFoundation`__CFRunLoopRun + 831
frame #14: 0x00007fff90e3ee75 CoreFoundation`CFRunLoopRunSpecific + 309
frame #15: 0x00007fff93440a0d HIToolbox`RunCurrentEventLoopInMode + 226
frame #16: 0x00007fff934407b7 HIToolbox`ReceiveNextEventCommon + 479
frame #17: 0x00007fff934405bc HIToolbox`_BlockUntilNextEventMatchingListInModeWithFilter + 65
frame #18: 0x00007fff8ac9c24e AppKit`_DPSNextEvent + 1434
frame #19: 0x00007fff8ac9b89b AppKit`-[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 122
frame #20: 0x00007fff8ac8f99c AppKit`-[NSApplication run] + 553
frame #21: 0x0000000104ca611d libqcocoa.dylib`QCocoaEventDispatcher::processEvents(this=0x0000000104056170, flags=<unavailable>) + 2189 at qcocoaeventdispatcher.mm:418
frame #22: 0x000000010110de2d QtCore`QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) [inlined] QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) + 381 at qeventloop.cpp:128
frame #23: 0x000000010110de14 QtCore`QEventLoop::exec(this=0x00007fff5fbfee70, flags=<unavailable>) + 356 at qeventloop.cpp:204
frame #24: 0x0000000101110ca5 QtCore`QCoreApplication::exec() + 325 at qcoreapplication.cpp:1234
frame #25: 0x00000001000025ec kidletime_example`main(argc=1, argv=<unavailable>) + 60 at main.cpp:29
frame #26: 0x00007fff8d7ef5fd libdyld.dylib`start + 1
```
- René J.V. Bertin
On Nov. 15, 2015, 11:58 p.m., René J.V. Bertin wrote:
>
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://git.reviewboard.kde.org/r/126078/
> -----------------------------------------------------------
>
> (Updated Nov. 15, 2015, 11:58 p.m.)
>
>
> Review request for KDE Software on Mac OS X and KDE Frameworks.
>
>
> Repository: kidletime
>
>
> Description
> -------
>
> 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.
>
> 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.
>
>
> Diffs
> -----
>
> src/plugins/osx/macpoller.cpp ad9c10f
> src/plugins/osx/CMakeLists.txt e1b50b8
> src/plugins/osx/macpoller.h ef51ea5
>
> Diff: https://git.reviewboard.kde.org/r/126078/diff/
>
>
> Testing
> -------
>
> On OS X 10.9 with Qt 5.5.1 and frameworks 5.16.0 .
>
> The example now works: when I set a QTimer with interval==0, the expected wait for user input (`resumingFromIdle` signal) works. However, I am getting a `stopCatchingIdleEvents` 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.
>
> Surely I'm missing something, but what?
>
>
> Thanks,
>
> René J.V. Bertin
>
>
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