Re: [SailfishDevel] Preventing deep sleep for a few seconds?
On 05/02/14 10:04, Ove Kåven wrote: Den 05. feb. 2014 07:16, skrev Valerio Valerio: Hi, On 05/02/14 02:58, Thomas Tanghus wrote: On Monday 03 February 2014 22:58:42 Ove Kåven wrote: But for scheduled wakeups (say I want the next synchronization to occur after 6 hours), I suppose the best option is to use timed? I made a QML plugin including libiphb for that, and it did pass the harbour master ;) https://github.com/tanghus/kitchen-timer-qml/tree/master/src/insomniac Didn't checked your code carefully but this is probably not sufficient, if the device enters late suspend the timers will stop unless you use the keepalive apis (unfortunately not suited for harbour yet): https://github.com/nemomobile/nemo-keepalive But he does. From that README, it sounds like nemo-keepalive's PeriodicBackgroundProcessing is using libiphb, just like he is... Not only, if you check the code it also pings MCE preventing the device to go into late suspend, at least for me libiphb alone was not sufficient. Perhaps I could just use the nemo-keepalive API anyway since I'm not currently targeting harbour anyway because of its other restrictions. There's also QML interface there in case you haven't noticed. Best regards, Valério ___ SailfishOS.org Devel mailing list ___ SailfishOS.org Devel mailing list
Re: [SailfishDevel] Preventing deep sleep for a few seconds?
On Wednesday 05 February 2014 08:16:32 Valerio Valerio wrote: Hi, On 05/02/14 02:58, Thomas Tanghus wrote: On Monday 03 February 2014 22:58:42 Ove Kåven wrote: But for scheduled wakeups (say I want the next synchronization to occur after 6 hours), I suppose the best option is to use timed? I made a QML plugin including libiphb for that, and it did pass the harbour master ;) https://github.com/tanghus/kitchen-timer-qml/tree/master/src/insomniac Didn't checked your code carefully but this is probably not sufficient, if the device enters late suspend the timers will stop unless you use the keepalive apis (unfortunately not suited for harbour yet): https://github.com/nemomobile/nemo-keepalive As I use it in the kitchen-timer app any normal QML timers are stopped when the app is no longer visible, and the Insomniac timer (using the libiphb included) is set to wake up a few seconds before the timeout, restart timers and adjust the UI. Works flawlessly (in my tests) for waking up from deep sleep. -- Best regards / Med venlig hilsen Thomas Tanghus ___ SailfishOS.org Devel mailing list
Re: [SailfishDevel] Preventing deep sleep for a few seconds?
Hi, On 05/02/14 02:58, Thomas Tanghus wrote: On Monday 03 February 2014 22:58:42 Ove Kåven wrote: But for scheduled wakeups (say I want the next synchronization to occur after 6 hours), I suppose the best option is to use timed? I made a QML plugin including libiphb for that, and it did pass the harbour master ;) https://github.com/tanghus/kitchen-timer-qml/tree/master/src/insomniac Didn't checked your code carefully but this is probably not sufficient, if the device enters late suspend the timers will stop unless you use the keepalive apis (unfortunately not suited for harbour yet): https://github.com/nemomobile/nemo-keepalive Best regards, Valério ___ SailfishOS.org Devel mailing list
Re: [SailfishDevel] Preventing deep sleep for a few seconds?
On 01 Feb 2014, at 21:32, Ove Kåven o...@arcticnet.no wrote: If a synchronization starts with the screen off, there's a chance that the phone enters deep suspend during the synchronization. If so, the other side might time out and the sync will fail. So I want prevent the CPU from suspending before the synchronization is complete, which might take a few seconds (and there might not be network activity all the time while it's running). I've read that to get periodic wakeups, you could use libiphb or maybe timed, but what's the recommended way to temporarily prevent suspending completely for a few seconds? You can talk to MCE via the system D-Bus, this is quite low-level, but works already: https://github.com/nemomobile/mce-dev/blob/master/include/mce/dbus-names.h#L329 To quote the documentation: * The idea is: if some process needs to do non-interactive * background processing, it can prevent the system from * entering late suspend by * * 1) get timer period via #MCE_CPU_KEEPALIVE_PERIOD_REQ call * * 2) call #MCE_CPU_KEEPALIVE_START_REQ * * 3) repeat #MCE_CPU_KEEPALIVE_START_REQ calls in interval *that is shorter than the maximum obtained at (1) * * 4) call #MCE_CPU_KEEPALIVE_STOP_REQ when finished * * MCE keeps track of active clients and blocks late suspend * until all clients have called #MCE_CPU_KEEPALIVE_STOP_REQ, * lost D-Bus connection (exit, crash, ...) or all timeouts * have been missed. There might be a higher-level API for this in the future (Qt-flavored C++ and QML), for a preview, see: https://github.com/nemomobile/nemo-keepalive HTH :) Thomas ___ SailfishOS.org Devel mailing list
[SailfishDevel] Preventing deep sleep for a few seconds?
If a synchronization starts with the screen off, there's a chance that the phone enters deep suspend during the synchronization. If so, the other side might time out and the sync will fail. So I want prevent the CPU from suspending before the synchronization is complete, which might take a few seconds (and there might not be network activity all the time while it's running). I've read that to get periodic wakeups, you could use libiphb or maybe timed, but what's the recommended way to temporarily prevent suspending completely for a few seconds? ___ SailfishOS.org Devel mailing list
