Yes, though I think the wakeup is not synchronous. It may end while the application code is being run. If your app doesn't have much to do you're probably safe not grabbing a wake lock yourself, but if the data causes you to kick off a longer task you should probably grab a wakelock.
R On Mon, Apr 16, 2012 at 8:35 PM, Heshan Perera < [email protected]> wrote: > Hi Robert, > > Thanks for the response. When you say that a wake up interrupt is > triggered to get data to the applications does it imply the following > scenario ? > > An application is listening to data on let's say port 8080. The CPU > goes to sleep. Data arrives at port 8080 while CPU is asleep. The > chipset will wake up the CPU to call the code (of the said > application) listening to data on this port and then send the CPU back > to sleep ? > > On Apr 17, 12:13 am, Robert Greenwalt <[email protected]> wrote: > > When the device receives network traffic the chipset triggers a wakeup > > interrupt to get the data to the kernel, then a time-limited wakelock is > > held while the data is delivered to applications. If you want to keep > the > > device awake after receiving the data you should grab your own wakelock > > when you get the data. > > > > R > > > > On Sun, Apr 15, 2012 at 10:58 PM, Heshan Perera < > > > > > > > > > > > > > > > > [email protected]> wrote: > > > As stated in the answer to this (http://stackoverflow.com/questions/ > > > 5120185/android-sleep-standby-mode) > > > > > question, the CDMA and GSM radios are kept on, even after the CPU is > > > put to sleep on an Android device. > > > > > My questions are... > > > > > When a call is received, what is it that wakes the CPU / phone up ? > > > > > Is there a similar mechanism to wake my application up when data is > > > received via an active TCP connection to a server, even after the > > > phone has gone to sleep mode ? > > > > > -- > > > You received this message because you are subscribed to the Google > > > Groups "Android Developers" group. > > > To post to this group, send email to > [email protected] > > > To unsubscribe from this group, send email to > > > [email protected] > > > For more options, visit this group at > > >http://groups.google.com/group/android-developers?hl=en > > -- > You received this message because you are subscribed to the Google > Groups "Android Developers" group. > To post to this group, send email to [email protected] > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group at > http://groups.google.com/group/android-developers?hl=en > -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
