On Aug 12, 2007, at 9:25 PM, Bin Lei wrote:
In the user manual, AC is defined as code is reachable from at least one interrrupt handler; while SC is code only reachable from tasks.But there are many event handler that are not tagged using async, are they async or sync? e.g. in Blink example, three timer could fire simultaneously according to their frequency, and they triggered different control flow, is it possible that interfere with each other, i.e. one event handler is preempted by another? event void Timer0.fired() { dbg("BlinkC", "Timer 0 fired @ %s.\n", sim_time_string()); call Leds.led0Toggle(); } event void Timer1.fired() { dbg("BlinkC", "Timer 1 fired @ %s \n", sim_time_string()); call Leds.led1Toggle(); } event void Timer2.fired() { dbg("BlinkC", "Timer 2 fired @ %s.\n", sim_time_string()); call Leds.led2Toggle(); }
All commands and events that do not have the async keyword are sync. Phil _______________________________________________ Tinyos-help mailing list Tinyos-help@Millennium.Berkeley.EDU https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
