On Wed, Sep 10, 2014 at 10:25 PM, <Valdis.Kletnieks@vt.edu> wrote:
On Wed, 10 Sep 2014 21:58:48 +0300, Ran Shalit said:
1. How can I make a process to notice this inactivity ? Do you think it can be implemented by some periodic process who check if there is activity ? It returns to the original question I raised, that I will use some periodic process who checks maybe cpu load or something like that. What do you think ?
That's going to depend on your system and what processes are running.
You may have an MP3 player going that doesn't take much CPU at all - but shutting down because the user hasn't hit a button in 47 minutes will probably irritate the user no end. Or there may be a screensaver running that takes twice as much CPU as the MP3 player, but is totally OK on the system suspending whenever the rest of the system wants it.
You're going to have to look at your system design, and decide for yourself what the criteria are.
2. What Do you mean here by process ? Do you mean SW process which register for suspend notification (how do we do this) ? What about devices which register for suspend/resume. Must they accept the suspend ?
I believe Android already has libraries and monitor processes for this.
It's really hard to give more specific advice without knowing what your hardware, software, and usage is.
Ok, Thanks, I just tried to understand and learn from your previous answer. I have OMAP Soc and knows that the linux SDK supports suspend/resume and other mechnism. I did n't hear about the notification before. Thanks, Ran