|Wishes warning! This article or section documents one or more OpenMoko Wish List items, the features described here may or may not be implemented in the future.|
The alarm daemon provides an interface for applications to register times at which an application needs to do a specific task.
- An alarm should turn on the phone if needed
- I want to specify relative and absolute times (i.e. in 5 hours, on May 1st 2007, 2:00pm)
The alarm daemon will probably be part of neod since it will need to set the RTC alarm for the next event. The interface for the applications is exposed via dbus.
At start neod will have to query the next event in eds (to determine when the next wakeup has to occur). If a new event is added eds will broadcast the change through dbus.
Applications will (de-)register for a specific time at which the alarm daemon (neod) will call the application with a special command line parameter to reflect that the application has been called for an alarm.
- If the device is powering down during the alarm we might miss the RTC alarm. Maybe we should just move the alarm time back a minute if we are powering down and the alarm is near?
- What do we do if the application is already running?
An alarm daemon can not operate without accurate time. We have a number of possible time sources:
- view: sudo hwclock
- set from system time: sudo hwclock --systohc
- view: echo d | netcat -w1 localhost gpsd
GSM operator time
- It is not known how this can be accessed
- If you never suspend your phone then the system time could be used but this is not very practical.
- Does the GSM chip have its own clock (it is a full-blown ARM afterall)?
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